Results

There is a significant difference between black oats and tall fescue in 5.10 cm, in the reference mechanical treatment. There is also a significant difference between the untreated plots and the small boreholes in the black oats plots. There is no interactions between the two treatment factors. In 20-25 cm there are no significant effects.

Ref Black oats - SB Black oats -0.048000 0.012 58 -4.012 0.0087

Ref Black oats - Ref Tall fescue -0.044167 0.012 58 -3.691 0.0227

5 - 10 cm

                
                 Fodder radish Black oats Tall fescue
  Ref                        6          6           6
  Compost                    0          0           0
  LB                         6          6           6
  LB extensive               0          0           0
  LB Sand                    0          0           0
  SB                         6          6           6
  SS                         6          6           6
  SS Caterpillar             0          0           0


    studentized Breusch-Pagan test

data:  md
BP = 38.711, df = 13, p-value = 0.0002223

Call:
lm(formula = fractie_water ~ ondgr_bw * gr_bem + blok + jaar, 
    data = dataset.5.10cm)

Coefficients:
                 (Intercept)                    ondgr_bwLB  
                   0.2785972                    -0.0191667  
                  ondgr_bwSB                    ondgr_bwSS  
                  -0.0008333                    -0.0008333  
            gr_bemBlack oats             gr_bemTall fescue  
                  -0.0343333                     0.0098333  
                        blok                      jaar2022  
                  -0.0213125                    -0.0569444  
 ondgr_bwLB:gr_bemBlack oats   ondgr_bwSB:gr_bemBlack oats  
                   0.0483333                     0.0488333  
 ondgr_bwSS:gr_bemBlack oats  ondgr_bwLB:gr_bemTall fescue  
                   0.0180000                     0.0066667  
ondgr_bwSB:gr_bemTall fescue  ondgr_bwSS:gr_bemTall fescue  
                  -0.0126667                    -0.0166667  
Analysis of Variance Table

Response: fractie_water
                Df   Sum Sq  Mean Sq  F value    Pr(>F)    
ondgr_bw         3 0.001832 0.000611   1.4220  0.245566    
gr_bem           2 0.001139 0.000569   1.3256  0.273574    
blok             1 0.021803 0.021803  50.7672 1.807e-09 ***
jaar             1 0.058368 0.058368 135.9090 < 2.2e-16 ***
ondgr_bw:gr_bem  6 0.008108 0.001351   3.1464  0.009706 ** 
Residuals       58 0.024909 0.000429                       
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1


    Exact one-sample Kolmogorov-Smirnov test

data:  resid(md)
D = 0.07797, p-value = 0.7442
alternative hypothesis: two-sided
$emmeans
 gr_bem        emmean      SE df lower.CL upper.CL
 Fodder radish  0.202 0.00423 58    0.194    0.211
 Black oats     0.197 0.00423 58    0.188    0.205
 Tall fescue    0.206 0.00423 58    0.198    0.215

Results are averaged over the levels of: ondgr_bw, jaar 
Confidence level used: 0.95 

$contrasts
 contrast                    estimate      SE df t.ratio p.value
 Fodder radish - Black oats   0.00554 0.00598 58   0.926  0.6260
 Fodder radish - Tall fescue -0.00417 0.00598 58  -0.696  0.7665
 Black oats - Tall fescue    -0.00971 0.00598 58  -1.623  0.2443

Results are averaged over the levels of: ondgr_bw, jaar 
P value adjustment: tukey method for comparing a family of 3 estimates 
$emmeans
 ondgr_bw gr_bem        emmean      SE df lower.CL upper.CL
 Ref      Fodder radish  0.207 0.00846 58    0.191    0.224
 LB       Fodder radish  0.188 0.00846 58    0.171    0.205
 SB       Fodder radish  0.207 0.00846 58    0.190    0.224
 SS       Fodder radish  0.207 0.00846 58    0.190    0.224
 Ref      Black oats     0.173 0.00846 58    0.156    0.190
 LB       Black oats     0.202 0.00846 58    0.185    0.219
 SB       Black oats     0.221 0.00846 58    0.204    0.238
 SS       Black oats     0.190 0.00846 58    0.173    0.207
 Ref      Tall fescue    0.217 0.00846 58    0.200    0.234
 LB       Tall fescue    0.205 0.00846 58    0.188    0.222
 SB       Tall fescue    0.204 0.00846 58    0.187    0.221
 SS       Tall fescue    0.200 0.00846 58    0.183    0.217

Results are averaged over the levels of: jaar 
Confidence level used: 0.95 

$contrasts
 contrast                              estimate    SE df t.ratio p.value
 Ref Fodder radish - LB Fodder radish  0.019167 0.012 58   1.602  0.9014
 Ref Fodder radish - SB Fodder radish  0.000833 0.012 58   0.070  1.0000
 Ref Fodder radish - SS Fodder radish  0.000833 0.012 58   0.070  1.0000
 Ref Fodder radish - Ref Black oats    0.034333 0.012 58   2.870  0.1795
 Ref Fodder radish - LB Black oats     0.005167 0.012 58   0.432  1.0000
 Ref Fodder radish - SB Black oats    -0.013667 0.012 58  -1.142  0.9912
 Ref Fodder radish - SS Black oats     0.017167 0.012 58   1.435  0.9514
 Ref Fodder radish - Ref Tall fescue  -0.009833 0.012 58  -0.822  0.9995
 Ref Fodder radish - LB Tall fescue    0.002667 0.012 58   0.223  1.0000
 Ref Fodder radish - SB Tall fescue    0.003667 0.012 58   0.306  1.0000
 Ref Fodder radish - SS Tall fescue    0.007667 0.012 58   0.641  1.0000
 LB Fodder radish - SB Fodder radish  -0.018333 0.012 58  -1.532  0.9251
 LB Fodder radish - SS Fodder radish  -0.018333 0.012 58  -1.532  0.9251
 LB Fodder radish - Ref Black oats     0.015167 0.012 58   1.268  0.9800
 LB Fodder radish - LB Black oats     -0.014000 0.012 58  -1.170  0.9893
 LB Fodder radish - SB Black oats     -0.032833 0.012 58  -2.744  0.2317
 LB Fodder radish - SS Black oats     -0.002000 0.012 58  -0.167  1.0000
 LB Fodder radish - Ref Tall fescue   -0.029000 0.012 58  -2.424  0.4074
 LB Fodder radish - LB Tall fescue    -0.016500 0.012 58  -1.379  0.9630
 LB Fodder radish - SB Tall fescue    -0.015500 0.012 58  -1.295  0.9765
 LB Fodder radish - SS Tall fescue    -0.011500 0.012 58  -0.961  0.9980
 SB Fodder radish - SS Fodder radish   0.000000 0.012 58   0.000  1.0000
 SB Fodder radish - Ref Black oats     0.033500 0.012 58   2.800  0.2073
 SB Fodder radish - LB Black oats      0.004333 0.012 58   0.362  1.0000
 SB Fodder radish - SB Black oats     -0.014500 0.012 58  -1.212  0.9859
 SB Fodder radish - SS Black oats      0.016333 0.012 58   1.365  0.9656
 SB Fodder radish - Ref Tall fescue   -0.010667 0.012 58  -0.892  0.9990
 SB Fodder radish - LB Tall fescue     0.001833 0.012 58   0.153  1.0000
 SB Fodder radish - SB Tall fescue     0.002833 0.012 58   0.237  1.0000
 SB Fodder radish - SS Tall fescue     0.006833 0.012 58   0.571  1.0000
 SS Fodder radish - Ref Black oats     0.033500 0.012 58   2.800  0.2073
 SS Fodder radish - LB Black oats      0.004333 0.012 58   0.362  1.0000
 SS Fodder radish - SB Black oats     -0.014500 0.012 58  -1.212  0.9859
 SS Fodder radish - SS Black oats      0.016333 0.012 58   1.365  0.9656
 SS Fodder radish - Ref Tall fescue   -0.010667 0.012 58  -0.892  0.9990
 SS Fodder radish - LB Tall fescue     0.001833 0.012 58   0.153  1.0000
 SS Fodder radish - SB Tall fescue     0.002833 0.012 58   0.237  1.0000
 SS Fodder radish - SS Tall fescue     0.006833 0.012 58   0.571  1.0000
 Ref Black oats - LB Black oats       -0.029167 0.012 58  -2.438  0.3986
 Ref Black oats - SB Black oats       -0.048000 0.012 58  -4.012  0.0087
 Ref Black oats - SS Black oats       -0.017167 0.012 58  -1.435  0.9514
 Ref Black oats - Ref Tall fescue     -0.044167 0.012 58  -3.691  0.0227
 Ref Black oats - LB Tall fescue      -0.031667 0.012 58  -2.647  0.2790
 Ref Black oats - SB Tall fescue      -0.030667 0.012 58  -2.563  0.3240
 Ref Black oats - SS Tall fescue      -0.026667 0.012 58  -2.229  0.5366
 LB Black oats - SB Black oats        -0.018833 0.012 58  -1.574  0.9114
 LB Black oats - SS Black oats         0.012000 0.012 58   1.003  0.9971
 LB Black oats - Ref Tall fescue      -0.015000 0.012 58  -1.254  0.9816
 LB Black oats - LB Tall fescue       -0.002500 0.012 58  -0.209  1.0000
 LB Black oats - SB Tall fescue       -0.001500 0.012 58  -0.125  1.0000
 LB Black oats - SS Tall fescue        0.002500 0.012 58   0.209  1.0000
 SB Black oats - SS Black oats         0.030833 0.012 58   2.577  0.3163
 SB Black oats - Ref Tall fescue       0.003833 0.012 58   0.320  1.0000
 SB Black oats - LB Tall fescue        0.016333 0.012 58   1.365  0.9656
 SB Black oats - SB Tall fescue        0.017333 0.012 58   1.449  0.9481
 SB Black oats - SS Tall fescue        0.021333 0.012 58   1.783  0.8202
 SS Black oats - Ref Tall fescue      -0.027000 0.012 58  -2.257  0.5176
 SS Black oats - LB Tall fescue       -0.014500 0.012 58  -1.212  0.9859
 SS Black oats - SB Tall fescue       -0.013500 0.012 58  -1.128  0.9920
 SS Black oats - SS Tall fescue       -0.009500 0.012 58  -0.794  0.9997
 Ref Tall fescue - LB Tall fescue      0.012500 0.012 58   1.045  0.9958
 Ref Tall fescue - SB Tall fescue      0.013500 0.012 58   1.128  0.9920
 Ref Tall fescue - SS Tall fescue      0.017500 0.012 58   1.463  0.9446
 LB Tall fescue - SB Tall fescue       0.001000 0.012 58   0.084  1.0000
 LB Tall fescue - SS Tall fescue       0.005000 0.012 58   0.418  1.0000
 SB Tall fescue - SS Tall fescue       0.004000 0.012 58   0.334  1.0000

Results are averaged over the levels of: jaar 
P value adjustment: tukey method for comparing a family of 12 estimates 
$emmeans
jaar = 2021:
 ondgr_bw gr_bem        emmean      SE df lower.CL upper.CL
 Ref      Fodder radish  0.236 0.00881 58    0.218    0.254
 LB       Fodder radish  0.217 0.00881 58    0.199    0.234
 SB       Fodder radish  0.235 0.00881 58    0.218    0.253
 SS       Fodder radish  0.235 0.00881 58    0.218    0.253
 Ref      Black oats     0.202 0.00881 58    0.184    0.219
 LB       Black oats     0.231 0.00881 58    0.213    0.248
 SB       Black oats     0.250 0.00881 58    0.232    0.267
 SS       Black oats     0.219 0.00881 58    0.201    0.236
 Ref      Tall fescue    0.246 0.00881 58    0.228    0.263
 LB       Tall fescue    0.233 0.00881 58    0.216    0.251
 SB       Tall fescue    0.232 0.00881 58    0.215    0.250
 SS       Tall fescue    0.228 0.00881 58    0.211    0.246

jaar = 2022:
 ondgr_bw gr_bem        emmean      SE df lower.CL upper.CL
 Ref      Fodder radish  0.179 0.00881 58    0.161    0.197
 LB       Fodder radish  0.160 0.00881 58    0.142    0.177
 SB       Fodder radish  0.178 0.00881 58    0.161    0.196
 SS       Fodder radish  0.178 0.00881 58    0.161    0.196
 Ref      Black oats     0.145 0.00881 58    0.127    0.162
 LB       Black oats     0.174 0.00881 58    0.156    0.191
 SB       Black oats     0.193 0.00881 58    0.175    0.210
 SS       Black oats     0.162 0.00881 58    0.144    0.179
 Ref      Tall fescue    0.189 0.00881 58    0.171    0.206
 LB       Tall fescue    0.176 0.00881 58    0.159    0.194
 SB       Tall fescue    0.175 0.00881 58    0.158    0.193
 SS       Tall fescue    0.171 0.00881 58    0.154    0.189

Confidence level used: 0.95 

$contrasts
jaar = 2021:
 contrast                              estimate    SE df t.ratio p.value
 Ref Fodder radish - LB Fodder radish  0.019167 0.012 58   1.602  0.9014
 Ref Fodder radish - SB Fodder radish  0.000833 0.012 58   0.070  1.0000
 Ref Fodder radish - SS Fodder radish  0.000833 0.012 58   0.070  1.0000
 Ref Fodder radish - Ref Black oats    0.034333 0.012 58   2.870  0.1795
 Ref Fodder radish - LB Black oats     0.005167 0.012 58   0.432  1.0000
 Ref Fodder radish - SB Black oats    -0.013667 0.012 58  -1.142  0.9912
 Ref Fodder radish - SS Black oats     0.017167 0.012 58   1.435  0.9514
 Ref Fodder radish - Ref Tall fescue  -0.009833 0.012 58  -0.822  0.9995
 Ref Fodder radish - LB Tall fescue    0.002667 0.012 58   0.223  1.0000
 Ref Fodder radish - SB Tall fescue    0.003667 0.012 58   0.306  1.0000
 Ref Fodder radish - SS Tall fescue    0.007667 0.012 58   0.641  1.0000
 LB Fodder radish - SB Fodder radish  -0.018333 0.012 58  -1.532  0.9251
 LB Fodder radish - SS Fodder radish  -0.018333 0.012 58  -1.532  0.9251
 LB Fodder radish - Ref Black oats     0.015167 0.012 58   1.268  0.9800
 LB Fodder radish - LB Black oats     -0.014000 0.012 58  -1.170  0.9893
 LB Fodder radish - SB Black oats     -0.032833 0.012 58  -2.744  0.2317
 LB Fodder radish - SS Black oats     -0.002000 0.012 58  -0.167  1.0000
 LB Fodder radish - Ref Tall fescue   -0.029000 0.012 58  -2.424  0.4074
 LB Fodder radish - LB Tall fescue    -0.016500 0.012 58  -1.379  0.9630
 LB Fodder radish - SB Tall fescue    -0.015500 0.012 58  -1.295  0.9765
 LB Fodder radish - SS Tall fescue    -0.011500 0.012 58  -0.961  0.9980
 SB Fodder radish - SS Fodder radish   0.000000 0.012 58   0.000  1.0000
 SB Fodder radish - Ref Black oats     0.033500 0.012 58   2.800  0.2073
 SB Fodder radish - LB Black oats      0.004333 0.012 58   0.362  1.0000
 SB Fodder radish - SB Black oats     -0.014500 0.012 58  -1.212  0.9859
 SB Fodder radish - SS Black oats      0.016333 0.012 58   1.365  0.9656
 SB Fodder radish - Ref Tall fescue   -0.010667 0.012 58  -0.892  0.9990
 SB Fodder radish - LB Tall fescue     0.001833 0.012 58   0.153  1.0000
 SB Fodder radish - SB Tall fescue     0.002833 0.012 58   0.237  1.0000
 SB Fodder radish - SS Tall fescue     0.006833 0.012 58   0.571  1.0000
 SS Fodder radish - Ref Black oats     0.033500 0.012 58   2.800  0.2073
 SS Fodder radish - LB Black oats      0.004333 0.012 58   0.362  1.0000
 SS Fodder radish - SB Black oats     -0.014500 0.012 58  -1.212  0.9859
 SS Fodder radish - SS Black oats      0.016333 0.012 58   1.365  0.9656
 SS Fodder radish - Ref Tall fescue   -0.010667 0.012 58  -0.892  0.9990
 SS Fodder radish - LB Tall fescue     0.001833 0.012 58   0.153  1.0000
 SS Fodder radish - SB Tall fescue     0.002833 0.012 58   0.237  1.0000
 SS Fodder radish - SS Tall fescue     0.006833 0.012 58   0.571  1.0000
 Ref Black oats - LB Black oats       -0.029167 0.012 58  -2.438  0.3986
 Ref Black oats - SB Black oats       -0.048000 0.012 58  -4.012  0.0087
 Ref Black oats - SS Black oats       -0.017167 0.012 58  -1.435  0.9514
 Ref Black oats - Ref Tall fescue     -0.044167 0.012 58  -3.691  0.0227
 Ref Black oats - LB Tall fescue      -0.031667 0.012 58  -2.647  0.2790
 Ref Black oats - SB Tall fescue      -0.030667 0.012 58  -2.563  0.3240
 Ref Black oats - SS Tall fescue      -0.026667 0.012 58  -2.229  0.5366
 LB Black oats - SB Black oats        -0.018833 0.012 58  -1.574  0.9114
 LB Black oats - SS Black oats         0.012000 0.012 58   1.003  0.9971
 LB Black oats - Ref Tall fescue      -0.015000 0.012 58  -1.254  0.9816
 LB Black oats - LB Tall fescue       -0.002500 0.012 58  -0.209  1.0000
 LB Black oats - SB Tall fescue       -0.001500 0.012 58  -0.125  1.0000
 LB Black oats - SS Tall fescue        0.002500 0.012 58   0.209  1.0000
 SB Black oats - SS Black oats         0.030833 0.012 58   2.577  0.3163
 SB Black oats - Ref Tall fescue       0.003833 0.012 58   0.320  1.0000
 SB Black oats - LB Tall fescue        0.016333 0.012 58   1.365  0.9656
 SB Black oats - SB Tall fescue        0.017333 0.012 58   1.449  0.9481
 SB Black oats - SS Tall fescue        0.021333 0.012 58   1.783  0.8202
 SS Black oats - Ref Tall fescue      -0.027000 0.012 58  -2.257  0.5176
 SS Black oats - LB Tall fescue       -0.014500 0.012 58  -1.212  0.9859
 SS Black oats - SB Tall fescue       -0.013500 0.012 58  -1.128  0.9920
 SS Black oats - SS Tall fescue       -0.009500 0.012 58  -0.794  0.9997
 Ref Tall fescue - LB Tall fescue      0.012500 0.012 58   1.045  0.9958
 Ref Tall fescue - SB Tall fescue      0.013500 0.012 58   1.128  0.9920
 Ref Tall fescue - SS Tall fescue      0.017500 0.012 58   1.463  0.9446
 LB Tall fescue - SB Tall fescue       0.001000 0.012 58   0.084  1.0000
 LB Tall fescue - SS Tall fescue       0.005000 0.012 58   0.418  1.0000
 SB Tall fescue - SS Tall fescue       0.004000 0.012 58   0.334  1.0000

jaar = 2022:
 contrast                              estimate    SE df t.ratio p.value
 Ref Fodder radish - LB Fodder radish  0.019167 0.012 58   1.602  0.9014
 Ref Fodder radish - SB Fodder radish  0.000833 0.012 58   0.070  1.0000
 Ref Fodder radish - SS Fodder radish  0.000833 0.012 58   0.070  1.0000
 Ref Fodder radish - Ref Black oats    0.034333 0.012 58   2.870  0.1795
 Ref Fodder radish - LB Black oats     0.005167 0.012 58   0.432  1.0000
 Ref Fodder radish - SB Black oats    -0.013667 0.012 58  -1.142  0.9912
 Ref Fodder radish - SS Black oats     0.017167 0.012 58   1.435  0.9514
 Ref Fodder radish - Ref Tall fescue  -0.009833 0.012 58  -0.822  0.9995
 Ref Fodder radish - LB Tall fescue    0.002667 0.012 58   0.223  1.0000
 Ref Fodder radish - SB Tall fescue    0.003667 0.012 58   0.306  1.0000
 Ref Fodder radish - SS Tall fescue    0.007667 0.012 58   0.641  1.0000
 LB Fodder radish - SB Fodder radish  -0.018333 0.012 58  -1.532  0.9251
 LB Fodder radish - SS Fodder radish  -0.018333 0.012 58  -1.532  0.9251
 LB Fodder radish - Ref Black oats     0.015167 0.012 58   1.268  0.9800
 LB Fodder radish - LB Black oats     -0.014000 0.012 58  -1.170  0.9893
 LB Fodder radish - SB Black oats     -0.032833 0.012 58  -2.744  0.2317
 LB Fodder radish - SS Black oats     -0.002000 0.012 58  -0.167  1.0000
 LB Fodder radish - Ref Tall fescue   -0.029000 0.012 58  -2.424  0.4074
 LB Fodder radish - LB Tall fescue    -0.016500 0.012 58  -1.379  0.9630
 LB Fodder radish - SB Tall fescue    -0.015500 0.012 58  -1.295  0.9765
 LB Fodder radish - SS Tall fescue    -0.011500 0.012 58  -0.961  0.9980
 SB Fodder radish - SS Fodder radish   0.000000 0.012 58   0.000  1.0000
 SB Fodder radish - Ref Black oats     0.033500 0.012 58   2.800  0.2073
 SB Fodder radish - LB Black oats      0.004333 0.012 58   0.362  1.0000
 SB Fodder radish - SB Black oats     -0.014500 0.012 58  -1.212  0.9859
 SB Fodder radish - SS Black oats      0.016333 0.012 58   1.365  0.9656
 SB Fodder radish - Ref Tall fescue   -0.010667 0.012 58  -0.892  0.9990
 SB Fodder radish - LB Tall fescue     0.001833 0.012 58   0.153  1.0000
 SB Fodder radish - SB Tall fescue     0.002833 0.012 58   0.237  1.0000
 SB Fodder radish - SS Tall fescue     0.006833 0.012 58   0.571  1.0000
 SS Fodder radish - Ref Black oats     0.033500 0.012 58   2.800  0.2073
 SS Fodder radish - LB Black oats      0.004333 0.012 58   0.362  1.0000
 SS Fodder radish - SB Black oats     -0.014500 0.012 58  -1.212  0.9859
 SS Fodder radish - SS Black oats      0.016333 0.012 58   1.365  0.9656
 SS Fodder radish - Ref Tall fescue   -0.010667 0.012 58  -0.892  0.9990
 SS Fodder radish - LB Tall fescue     0.001833 0.012 58   0.153  1.0000
 SS Fodder radish - SB Tall fescue     0.002833 0.012 58   0.237  1.0000
 SS Fodder radish - SS Tall fescue     0.006833 0.012 58   0.571  1.0000
 Ref Black oats - LB Black oats       -0.029167 0.012 58  -2.438  0.3986
 Ref Black oats - SB Black oats       -0.048000 0.012 58  -4.012  0.0087
 Ref Black oats - SS Black oats       -0.017167 0.012 58  -1.435  0.9514
 Ref Black oats - Ref Tall fescue     -0.044167 0.012 58  -3.691  0.0227
 Ref Black oats - LB Tall fescue      -0.031667 0.012 58  -2.647  0.2790
 Ref Black oats - SB Tall fescue      -0.030667 0.012 58  -2.563  0.3240
 Ref Black oats - SS Tall fescue      -0.026667 0.012 58  -2.229  0.5366
 LB Black oats - SB Black oats        -0.018833 0.012 58  -1.574  0.9114
 LB Black oats - SS Black oats         0.012000 0.012 58   1.003  0.9971
 LB Black oats - Ref Tall fescue      -0.015000 0.012 58  -1.254  0.9816
 LB Black oats - LB Tall fescue       -0.002500 0.012 58  -0.209  1.0000
 LB Black oats - SB Tall fescue       -0.001500 0.012 58  -0.125  1.0000
 LB Black oats - SS Tall fescue        0.002500 0.012 58   0.209  1.0000
 SB Black oats - SS Black oats         0.030833 0.012 58   2.577  0.3163
 SB Black oats - Ref Tall fescue       0.003833 0.012 58   0.320  1.0000
 SB Black oats - LB Tall fescue        0.016333 0.012 58   1.365  0.9656
 SB Black oats - SB Tall fescue        0.017333 0.012 58   1.449  0.9481
 SB Black oats - SS Tall fescue        0.021333 0.012 58   1.783  0.8202
 SS Black oats - Ref Tall fescue      -0.027000 0.012 58  -2.257  0.5176
 SS Black oats - LB Tall fescue       -0.014500 0.012 58  -1.212  0.9859
 SS Black oats - SB Tall fescue       -0.013500 0.012 58  -1.128  0.9920
 SS Black oats - SS Tall fescue       -0.009500 0.012 58  -0.794  0.9997
 Ref Tall fescue - LB Tall fescue      0.012500 0.012 58   1.045  0.9958
 Ref Tall fescue - SB Tall fescue      0.013500 0.012 58   1.128  0.9920
 Ref Tall fescue - SS Tall fescue      0.017500 0.012 58   1.463  0.9446
 LB Tall fescue - SB Tall fescue       0.001000 0.012 58   0.084  1.0000
 LB Tall fescue - SS Tall fescue       0.005000 0.012 58   0.418  1.0000
 SB Tall fescue - SS Tall fescue       0.004000 0.012 58   0.334  1.0000

P value adjustment: tukey method for comparing a family of 12 estimates 

20-25 cm

                
                 Fodder radish Black oats Tall fescue
  Ref                        6          6           6
  Compost                    0          0           0
  LB                         6          6           6
  LB extensive               0          0           0
  LB Sand                    0          0           0
  SB                         6          6           6
  SS                         6          6           6
  SS Caterpillar             0          0           0


Call:
lm(formula = fractie_water ~ ondgr_bw + gr_bem + blok + jaar, 
    data = dataset.20.25cm)

Coefficients:
      (Intercept)         ondgr_bwLB         ondgr_bwSB         ondgr_bwSS  
         0.276264          -0.006222          -0.003000           0.008500  
 gr_bemBlack oats  gr_bemTall fescue               blok           jaar2022  
        -0.001042           0.006583          -0.030812          -0.032750  
Analysis of Variance Table

Response: fractie_water
          Df   Sum Sq  Mean Sq F value    Pr(>F)    
ondgr_bw   3 0.002157 0.000719  1.1718    0.3275    
gr_bem     2 0.000821 0.000410  0.6686    0.5160    
blok       1 0.045572 0.045572 74.2677 2.638e-12 ***
jaar       1 0.019306 0.019306 31.4630 4.663e-07 ***
Residuals 64 0.039271 0.000614                      
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1


    Exact one-sample Kolmogorov-Smirnov test

data:  resid(md)
D = 0.10027, p-value = 0.4357
alternative hypothesis: two-sided
$emmeans
 gr_bem        emmean      SE df lower.CL upper.CL
 Fodder radish  0.198 0.00506 64    0.188    0.208
 Black oats     0.197 0.00506 64    0.187    0.207
 Tall fescue    0.205 0.00506 64    0.195    0.215

Results are averaged over the levels of: ondgr_bw, jaar 
Confidence level used: 0.95 

$contrasts
 contrast                    estimate      SE df t.ratio p.value
 Fodder radish - Black oats   0.00104 0.00715 64   0.146  0.9884
 Fodder radish - Tall fescue -0.00658 0.00715 64  -0.921  0.6293
 Black oats - Tall fescue    -0.00762 0.00715 64  -1.066  0.5383

Results are averaged over the levels of: ondgr_bw, jaar 
P value adjustment: tukey method for comparing a family of 3 estimates 
$emmeans
 ondgr_bw gr_bem        emmean      SE df lower.CL upper.CL
 Ref      Fodder radish  0.198 0.00715 64    0.184    0.213
 LB       Fodder radish  0.192 0.00715 64    0.178    0.206
 SB       Fodder radish  0.195 0.00715 64    0.181    0.210
 SS       Fodder radish  0.207 0.00715 64    0.192    0.221
 Ref      Black oats     0.197 0.00715 64    0.183    0.212
 LB       Black oats     0.191 0.00715 64    0.177    0.205
 SB       Black oats     0.194 0.00715 64    0.180    0.209
 SS       Black oats     0.206 0.00715 64    0.191    0.220
 Ref      Tall fescue    0.205 0.00715 64    0.191    0.219
 LB       Tall fescue    0.199 0.00715 64    0.184    0.213
 SB       Tall fescue    0.202 0.00715 64    0.188    0.216
 SS       Tall fescue    0.213 0.00715 64    0.199    0.228

Results are averaged over the levels of: jaar 
Confidence level used: 0.95 

$contrasts
 contrast                              estimate      SE df t.ratio p.value
 Ref Fodder radish - LB Fodder radish  0.006222 0.00826 64   0.754  0.9998
 Ref Fodder radish - SB Fodder radish  0.003000 0.00826 64   0.363  1.0000
 Ref Fodder radish - SS Fodder radish -0.008500 0.00826 64  -1.029  0.9964
 Ref Fodder radish - Ref Black oats    0.001042 0.00715 64   0.146  1.0000
 Ref Fodder radish - LB Black oats     0.007264 0.01092 64   0.665  0.9999
 Ref Fodder radish - SB Black oats     0.004042 0.01092 64   0.370  1.0000
 Ref Fodder radish - SS Black oats    -0.007458 0.01092 64  -0.683  0.9999
 Ref Fodder radish - Ref Tall fescue  -0.006583 0.00715 64  -0.921  0.9987
 Ref Fodder radish - LB Tall fescue   -0.000361 0.01092 64  -0.033  1.0000
 Ref Fodder radish - SB Tall fescue   -0.003583 0.01092 64  -0.328  1.0000
 Ref Fodder radish - SS Tall fescue   -0.015083 0.01092 64  -1.381  0.9631
 LB Fodder radish - SB Fodder radish  -0.003222 0.00826 64  -0.390  1.0000
 LB Fodder radish - SS Fodder radish  -0.014722 0.00826 64  -1.783  0.8209
 LB Fodder radish - Ref Black oats    -0.005181 0.01092 64  -0.474  1.0000
 LB Fodder radish - LB Black oats      0.001042 0.00715 64   0.146  1.0000
 LB Fodder radish - SB Black oats     -0.002181 0.01092 64  -0.200  1.0000
 LB Fodder radish - SS Black oats     -0.013681 0.01092 64  -1.252  0.9820
 LB Fodder radish - Ref Tall fescue   -0.012806 0.01092 64  -1.172  0.9893
 LB Fodder radish - LB Tall fescue    -0.006583 0.00715 64  -0.921  0.9987
 LB Fodder radish - SB Tall fescue    -0.009806 0.01092 64  -0.898  0.9989
 LB Fodder radish - SS Tall fescue    -0.021306 0.01092 64  -1.951  0.7235
 SB Fodder radish - SS Fodder radish  -0.011500 0.00826 64  -1.393  0.9608
 SB Fodder radish - Ref Black oats    -0.001958 0.01092 64  -0.179  1.0000
 SB Fodder radish - LB Black oats      0.004264 0.01092 64   0.390  1.0000
 SB Fodder radish - SB Black oats      0.001042 0.00715 64   0.146  1.0000
 SB Fodder radish - SS Black oats     -0.010458 0.01092 64  -0.957  0.9981
 SB Fodder radish - Ref Tall fescue   -0.009583 0.01092 64  -0.877  0.9991
 SB Fodder radish - LB Tall fescue    -0.003361 0.01092 64  -0.308  1.0000
 SB Fodder radish - SB Tall fescue    -0.006583 0.00715 64  -0.921  0.9987
 SB Fodder radish - SS Tall fescue    -0.018083 0.01092 64  -1.656  0.8810
 SS Fodder radish - Ref Black oats     0.009542 0.01092 64   0.874  0.9992
 SS Fodder radish - LB Black oats      0.015764 0.01092 64   1.443  0.9499
 SS Fodder radish - SB Black oats      0.012542 0.01092 64   1.148  0.9910
 SS Fodder radish - SS Black oats      0.001042 0.00715 64   0.146  1.0000
 SS Fodder radish - Ref Tall fescue    0.001917 0.01092 64   0.175  1.0000
 SS Fodder radish - LB Tall fescue     0.008139 0.01092 64   0.745  0.9998
 SS Fodder radish - SB Tall fescue     0.004917 0.01092 64   0.450  1.0000
 SS Fodder radish - SS Tall fescue    -0.006583 0.00715 64  -0.921  0.9987
 Ref Black oats - LB Black oats        0.006222 0.00826 64   0.754  0.9998
 Ref Black oats - SB Black oats        0.003000 0.00826 64   0.363  1.0000
 Ref Black oats - SS Black oats       -0.008500 0.00826 64  -1.029  0.9964
 Ref Black oats - Ref Tall fescue     -0.007625 0.00715 64  -1.066  0.9951
 Ref Black oats - LB Tall fescue      -0.001403 0.01092 64  -0.128  1.0000
 Ref Black oats - SB Tall fescue      -0.004625 0.01092 64  -0.423  1.0000
 Ref Black oats - SS Tall fescue      -0.016125 0.01092 64  -1.476  0.9417
 LB Black oats - SB Black oats        -0.003222 0.00826 64  -0.390  1.0000
 LB Black oats - SS Black oats        -0.014722 0.00826 64  -1.783  0.8209
 LB Black oats - Ref Tall fescue      -0.013847 0.01092 64  -1.268  0.9803
 LB Black oats - LB Tall fescue       -0.007625 0.00715 64  -1.066  0.9951
 LB Black oats - SB Tall fescue       -0.010847 0.01092 64  -0.993  0.9974
 LB Black oats - SS Tall fescue       -0.022347 0.01092 64  -2.046  0.6612
 SB Black oats - SS Black oats        -0.011500 0.00826 64  -1.393  0.9608
 SB Black oats - Ref Tall fescue      -0.010625 0.01092 64  -0.973  0.9978
 SB Black oats - LB Tall fescue       -0.004403 0.01092 64  -0.403  1.0000
 SB Black oats - SB Tall fescue       -0.007625 0.00715 64  -1.066  0.9951
 SB Black oats - SS Tall fescue       -0.019125 0.01092 64  -1.751  0.8373
 SS Black oats - Ref Tall fescue       0.000875 0.01092 64   0.080  1.0000
 SS Black oats - LB Tall fescue        0.007097 0.01092 64   0.650  1.0000
 SS Black oats - SB Tall fescue        0.003875 0.01092 64   0.355  1.0000
 SS Black oats - SS Tall fescue       -0.007625 0.00715 64  -1.066  0.9951
 Ref Tall fescue - LB Tall fescue      0.006222 0.00826 64   0.754  0.9998
 Ref Tall fescue - SB Tall fescue      0.003000 0.00826 64   0.363  1.0000
 Ref Tall fescue - SS Tall fescue     -0.008500 0.00826 64  -1.029  0.9964
 LB Tall fescue - SB Tall fescue      -0.003222 0.00826 64  -0.390  1.0000
 LB Tall fescue - SS Tall fescue      -0.014722 0.00826 64  -1.783  0.8209
 SB Tall fescue - SS Tall fescue      -0.011500 0.00826 64  -1.393  0.9608

Results are averaged over the levels of: jaar 
P value adjustment: tukey method for comparing a family of 12 estimates 
$emmeans
jaar = 2021:
 ondgr_bw gr_bem        emmean      SE df lower.CL upper.CL
 Ref      Fodder radish  0.215 0.00772 64    0.199    0.230
 LB       Fodder radish  0.208 0.00772 64    0.193    0.224
 SB       Fodder radish  0.212 0.00772 64    0.196    0.227
 SS       Fodder radish  0.223 0.00772 64    0.208    0.239
 Ref      Black oats     0.214 0.00772 64    0.198    0.229
 LB       Black oats     0.207 0.00772 64    0.192    0.223
 SB       Black oats     0.211 0.00772 64    0.195    0.226
 SS       Black oats     0.222 0.00772 64    0.207    0.238
 Ref      Tall fescue    0.221 0.00772 64    0.206    0.237
 LB       Tall fescue    0.215 0.00772 64    0.200    0.230
 SB       Tall fescue    0.218 0.00772 64    0.203    0.234
 SS       Tall fescue    0.230 0.00772 64    0.214    0.245

jaar = 2022:
 ondgr_bw gr_bem        emmean      SE df lower.CL upper.CL
 Ref      Fodder radish  0.182 0.00772 64    0.166    0.197
 LB       Fodder radish  0.176 0.00772 64    0.160    0.191
 SB       Fodder radish  0.179 0.00772 64    0.163    0.194
 SS       Fodder radish  0.190 0.00772 64    0.175    0.206
 Ref      Black oats     0.181 0.00772 64    0.165    0.196
 LB       Black oats     0.175 0.00772 64    0.159    0.190
 SB       Black oats     0.178 0.00772 64    0.162    0.193
 SS       Black oats     0.189 0.00772 64    0.174    0.205
 Ref      Tall fescue    0.188 0.00772 64    0.173    0.204
 LB       Tall fescue    0.182 0.00772 64    0.167    0.198
 SB       Tall fescue    0.185 0.00772 64    0.170    0.201
 SS       Tall fescue    0.197 0.00772 64    0.182    0.212

Confidence level used: 0.95 

$contrasts
jaar = 2021:
 contrast                              estimate      SE df t.ratio p.value
 Ref Fodder radish - LB Fodder radish  0.006222 0.00826 64   0.754  0.9998
 Ref Fodder radish - SB Fodder radish  0.003000 0.00826 64   0.363  1.0000
 Ref Fodder radish - SS Fodder radish -0.008500 0.00826 64  -1.029  0.9964
 Ref Fodder radish - Ref Black oats    0.001042 0.00715 64   0.146  1.0000
 Ref Fodder radish - LB Black oats     0.007264 0.01092 64   0.665  0.9999
 Ref Fodder radish - SB Black oats     0.004042 0.01092 64   0.370  1.0000
 Ref Fodder radish - SS Black oats    -0.007458 0.01092 64  -0.683  0.9999
 Ref Fodder radish - Ref Tall fescue  -0.006583 0.00715 64  -0.921  0.9987
 Ref Fodder radish - LB Tall fescue   -0.000361 0.01092 64  -0.033  1.0000
 Ref Fodder radish - SB Tall fescue   -0.003583 0.01092 64  -0.328  1.0000
 Ref Fodder radish - SS Tall fescue   -0.015083 0.01092 64  -1.381  0.9631
 LB Fodder radish - SB Fodder radish  -0.003222 0.00826 64  -0.390  1.0000
 LB Fodder radish - SS Fodder radish  -0.014722 0.00826 64  -1.783  0.8209
 LB Fodder radish - Ref Black oats    -0.005181 0.01092 64  -0.474  1.0000
 LB Fodder radish - LB Black oats      0.001042 0.00715 64   0.146  1.0000
 LB Fodder radish - SB Black oats     -0.002181 0.01092 64  -0.200  1.0000
 LB Fodder radish - SS Black oats     -0.013681 0.01092 64  -1.252  0.9820
 LB Fodder radish - Ref Tall fescue   -0.012806 0.01092 64  -1.172  0.9893
 LB Fodder radish - LB Tall fescue    -0.006583 0.00715 64  -0.921  0.9987
 LB Fodder radish - SB Tall fescue    -0.009806 0.01092 64  -0.898  0.9989
 LB Fodder radish - SS Tall fescue    -0.021306 0.01092 64  -1.951  0.7235
 SB Fodder radish - SS Fodder radish  -0.011500 0.00826 64  -1.393  0.9608
 SB Fodder radish - Ref Black oats    -0.001958 0.01092 64  -0.179  1.0000
 SB Fodder radish - LB Black oats      0.004264 0.01092 64   0.390  1.0000
 SB Fodder radish - SB Black oats      0.001042 0.00715 64   0.146  1.0000
 SB Fodder radish - SS Black oats     -0.010458 0.01092 64  -0.957  0.9981
 SB Fodder radish - Ref Tall fescue   -0.009583 0.01092 64  -0.877  0.9991
 SB Fodder radish - LB Tall fescue    -0.003361 0.01092 64  -0.308  1.0000
 SB Fodder radish - SB Tall fescue    -0.006583 0.00715 64  -0.921  0.9987
 SB Fodder radish - SS Tall fescue    -0.018083 0.01092 64  -1.656  0.8810
 SS Fodder radish - Ref Black oats     0.009542 0.01092 64   0.874  0.9992
 SS Fodder radish - LB Black oats      0.015764 0.01092 64   1.443  0.9499
 SS Fodder radish - SB Black oats      0.012542 0.01092 64   1.148  0.9910
 SS Fodder radish - SS Black oats      0.001042 0.00715 64   0.146  1.0000
 SS Fodder radish - Ref Tall fescue    0.001917 0.01092 64   0.175  1.0000
 SS Fodder radish - LB Tall fescue     0.008139 0.01092 64   0.745  0.9998
 SS Fodder radish - SB Tall fescue     0.004917 0.01092 64   0.450  1.0000
 SS Fodder radish - SS Tall fescue    -0.006583 0.00715 64  -0.921  0.9987
 Ref Black oats - LB Black oats        0.006222 0.00826 64   0.754  0.9998
 Ref Black oats - SB Black oats        0.003000 0.00826 64   0.363  1.0000
 Ref Black oats - SS Black oats       -0.008500 0.00826 64  -1.029  0.9964
 Ref Black oats - Ref Tall fescue     -0.007625 0.00715 64  -1.066  0.9951
 Ref Black oats - LB Tall fescue      -0.001403 0.01092 64  -0.128  1.0000
 Ref Black oats - SB Tall fescue      -0.004625 0.01092 64  -0.423  1.0000
 Ref Black oats - SS Tall fescue      -0.016125 0.01092 64  -1.476  0.9417
 LB Black oats - SB Black oats        -0.003222 0.00826 64  -0.390  1.0000
 LB Black oats - SS Black oats        -0.014722 0.00826 64  -1.783  0.8209
 LB Black oats - Ref Tall fescue      -0.013847 0.01092 64  -1.268  0.9803
 LB Black oats - LB Tall fescue       -0.007625 0.00715 64  -1.066  0.9951
 LB Black oats - SB Tall fescue       -0.010847 0.01092 64  -0.993  0.9974
 LB Black oats - SS Tall fescue       -0.022347 0.01092 64  -2.046  0.6612
 SB Black oats - SS Black oats        -0.011500 0.00826 64  -1.393  0.9608
 SB Black oats - Ref Tall fescue      -0.010625 0.01092 64  -0.973  0.9978
 SB Black oats - LB Tall fescue       -0.004403 0.01092 64  -0.403  1.0000
 SB Black oats - SB Tall fescue       -0.007625 0.00715 64  -1.066  0.9951
 SB Black oats - SS Tall fescue       -0.019125 0.01092 64  -1.751  0.8373
 SS Black oats - Ref Tall fescue       0.000875 0.01092 64   0.080  1.0000
 SS Black oats - LB Tall fescue        0.007097 0.01092 64   0.650  1.0000
 SS Black oats - SB Tall fescue        0.003875 0.01092 64   0.355  1.0000
 SS Black oats - SS Tall fescue       -0.007625 0.00715 64  -1.066  0.9951
 Ref Tall fescue - LB Tall fescue      0.006222 0.00826 64   0.754  0.9998
 Ref Tall fescue - SB Tall fescue      0.003000 0.00826 64   0.363  1.0000
 Ref Tall fescue - SS Tall fescue     -0.008500 0.00826 64  -1.029  0.9964
 LB Tall fescue - SB Tall fescue      -0.003222 0.00826 64  -0.390  1.0000
 LB Tall fescue - SS Tall fescue      -0.014722 0.00826 64  -1.783  0.8209
 SB Tall fescue - SS Tall fescue      -0.011500 0.00826 64  -1.393  0.9608

jaar = 2022:
 contrast                              estimate      SE df t.ratio p.value
 Ref Fodder radish - LB Fodder radish  0.006222 0.00826 64   0.754  0.9998
 Ref Fodder radish - SB Fodder radish  0.003000 0.00826 64   0.363  1.0000
 Ref Fodder radish - SS Fodder radish -0.008500 0.00826 64  -1.029  0.9964
 Ref Fodder radish - Ref Black oats    0.001042 0.00715 64   0.146  1.0000
 Ref Fodder radish - LB Black oats     0.007264 0.01092 64   0.665  0.9999
 Ref Fodder radish - SB Black oats     0.004042 0.01092 64   0.370  1.0000
 Ref Fodder radish - SS Black oats    -0.007458 0.01092 64  -0.683  0.9999
 Ref Fodder radish - Ref Tall fescue  -0.006583 0.00715 64  -0.921  0.9987
 Ref Fodder radish - LB Tall fescue   -0.000361 0.01092 64  -0.033  1.0000
 Ref Fodder radish - SB Tall fescue   -0.003583 0.01092 64  -0.328  1.0000
 Ref Fodder radish - SS Tall fescue   -0.015083 0.01092 64  -1.381  0.9631
 LB Fodder radish - SB Fodder radish  -0.003222 0.00826 64  -0.390  1.0000
 LB Fodder radish - SS Fodder radish  -0.014722 0.00826 64  -1.783  0.8209
 LB Fodder radish - Ref Black oats    -0.005181 0.01092 64  -0.474  1.0000
 LB Fodder radish - LB Black oats      0.001042 0.00715 64   0.146  1.0000
 LB Fodder radish - SB Black oats     -0.002181 0.01092 64  -0.200  1.0000
 LB Fodder radish - SS Black oats     -0.013681 0.01092 64  -1.252  0.9820
 LB Fodder radish - Ref Tall fescue   -0.012806 0.01092 64  -1.172  0.9893
 LB Fodder radish - LB Tall fescue    -0.006583 0.00715 64  -0.921  0.9987
 LB Fodder radish - SB Tall fescue    -0.009806 0.01092 64  -0.898  0.9989
 LB Fodder radish - SS Tall fescue    -0.021306 0.01092 64  -1.951  0.7235
 SB Fodder radish - SS Fodder radish  -0.011500 0.00826 64  -1.393  0.9608
 SB Fodder radish - Ref Black oats    -0.001958 0.01092 64  -0.179  1.0000
 SB Fodder radish - LB Black oats      0.004264 0.01092 64   0.390  1.0000
 SB Fodder radish - SB Black oats      0.001042 0.00715 64   0.146  1.0000
 SB Fodder radish - SS Black oats     -0.010458 0.01092 64  -0.957  0.9981
 SB Fodder radish - Ref Tall fescue   -0.009583 0.01092 64  -0.877  0.9991
 SB Fodder radish - LB Tall fescue    -0.003361 0.01092 64  -0.308  1.0000
 SB Fodder radish - SB Tall fescue    -0.006583 0.00715 64  -0.921  0.9987
 SB Fodder radish - SS Tall fescue    -0.018083 0.01092 64  -1.656  0.8810
 SS Fodder radish - Ref Black oats     0.009542 0.01092 64   0.874  0.9992
 SS Fodder radish - LB Black oats      0.015764 0.01092 64   1.443  0.9499
 SS Fodder radish - SB Black oats      0.012542 0.01092 64   1.148  0.9910
 SS Fodder radish - SS Black oats      0.001042 0.00715 64   0.146  1.0000
 SS Fodder radish - Ref Tall fescue    0.001917 0.01092 64   0.175  1.0000
 SS Fodder radish - LB Tall fescue     0.008139 0.01092 64   0.745  0.9998
 SS Fodder radish - SB Tall fescue     0.004917 0.01092 64   0.450  1.0000
 SS Fodder radish - SS Tall fescue    -0.006583 0.00715 64  -0.921  0.9987
 Ref Black oats - LB Black oats        0.006222 0.00826 64   0.754  0.9998
 Ref Black oats - SB Black oats        0.003000 0.00826 64   0.363  1.0000
 Ref Black oats - SS Black oats       -0.008500 0.00826 64  -1.029  0.9964
 Ref Black oats - Ref Tall fescue     -0.007625 0.00715 64  -1.066  0.9951
 Ref Black oats - LB Tall fescue      -0.001403 0.01092 64  -0.128  1.0000
 Ref Black oats - SB Tall fescue      -0.004625 0.01092 64  -0.423  1.0000
 Ref Black oats - SS Tall fescue      -0.016125 0.01092 64  -1.476  0.9417
 LB Black oats - SB Black oats        -0.003222 0.00826 64  -0.390  1.0000
 LB Black oats - SS Black oats        -0.014722 0.00826 64  -1.783  0.8209
 LB Black oats - Ref Tall fescue      -0.013847 0.01092 64  -1.268  0.9803
 LB Black oats - LB Tall fescue       -0.007625 0.00715 64  -1.066  0.9951
 LB Black oats - SB Tall fescue       -0.010847 0.01092 64  -0.993  0.9974
 LB Black oats - SS Tall fescue       -0.022347 0.01092 64  -2.046  0.6612
 SB Black oats - SS Black oats        -0.011500 0.00826 64  -1.393  0.9608
 SB Black oats - Ref Tall fescue      -0.010625 0.01092 64  -0.973  0.9978
 SB Black oats - LB Tall fescue       -0.004403 0.01092 64  -0.403  1.0000
 SB Black oats - SB Tall fescue       -0.007625 0.00715 64  -1.066  0.9951
 SB Black oats - SS Tall fescue       -0.019125 0.01092 64  -1.751  0.8373
 SS Black oats - Ref Tall fescue       0.000875 0.01092 64   0.080  1.0000
 SS Black oats - LB Tall fescue        0.007097 0.01092 64   0.650  1.0000
 SS Black oats - SB Tall fescue        0.003875 0.01092 64   0.355  1.0000
 SS Black oats - SS Tall fescue       -0.007625 0.00715 64  -1.066  0.9951
 Ref Tall fescue - LB Tall fescue      0.006222 0.00826 64   0.754  0.9998
 Ref Tall fescue - SB Tall fescue      0.003000 0.00826 64   0.363  1.0000
 Ref Tall fescue - SS Tall fescue     -0.008500 0.00826 64  -1.029  0.9964
 LB Tall fescue - SB Tall fescue      -0.003222 0.00826 64  -0.390  1.0000
 LB Tall fescue - SS Tall fescue      -0.014722 0.00826 64  -1.783  0.8209
 SB Tall fescue - SS Tall fescue      -0.011500 0.00826 64  -1.393  0.9608

P value adjustment: tukey method for comparing a family of 12 estimates 

5-10 cm extra fields (2021)


           Ref        Compost             LB   LB extensive        LB Sand 
             4              4              0              4              2 
            SB             SS SS Caterpillar 
             0              0              6 

20-25 cm extra fields (2021)


           Ref        Compost             LB   LB extensive        LB Sand 
             4              4              0              4              2 
            SB             SS SS Caterpillar 
             0              0              6 

Table

wortels_loof ondgr_bw gr_bem name
grond 20-25 cm Ref Fodder radish 0.1995000
grond 20-25 cm Ref Black oats 0.1845000
grond 20-25 cm Ref Tall fescue 0.2163333
grond 20-25 cm Ref NA 0.1762500
grond 20-25 cm Compost NA 0.1597500
grond 20-25 cm LB Fodder radish 0.1845000
grond 20-25 cm LB Black oats 0.2041667
grond 20-25 cm LB Tall fescue 0.1930000
grond 20-25 cm LB extensive NA 0.1710000
grond 20-25 cm LB Sand NA 0.1847500
grond 20-25 cm SB Fodder radish 0.1908333
grond 20-25 cm SB Black oats 0.1985000
grond 20-25 cm SB Tall fescue 0.2020000
grond 20-25 cm SS Fodder radish 0.2175000
grond 20-25 cm SS Black oats 0.2010000
grond 20-25 cm SS Tall fescue 0.2073333
grond 20-25 cm SS Caterpillar NA 0.1785000
grond 5-10 cm Ref Fodder radish 0.2075000
grond 5-10 cm Ref Black oats 0.1731667
grond 5-10 cm Ref Tall fescue 0.2173333
grond 5-10 cm Ref NA 0.1892500
grond 5-10 cm Compost NA 0.1792500
grond 5-10 cm LB Fodder radish 0.1883333
grond 5-10 cm LB Black oats 0.2023333
grond 5-10 cm LB Tall fescue 0.2048333
grond 5-10 cm LB extensive NA 0.1847500
grond 5-10 cm LB Sand NA 0.1922500
grond 5-10 cm SB Fodder radish 0.2066667
grond 5-10 cm SB Black oats 0.2211667
grond 5-10 cm SB Tall fescue 0.2038333
grond 5-10 cm SS Fodder radish 0.2066667
grond 5-10 cm SS Black oats 0.1903333
grond 5-10 cm SS Tall fescue 0.1998333
grond 5-10 cm SS Caterpillar NA 0.1900000