Table 2.
Nitrogen application rate for the cattle slurry and chemical fertiliser treatments.
Application date | Dry matter (%) | Total N (kg ha− 1) | Ammoniacal (N kg ha− 1) | Available (N kg ha− 1) | |
---|---|---|---|---|---|
Cattle slurry | 04/07/1998 | 5.9 | 220 | 100 | 122 |
26/04/1999 | 10.0 | 430 | 154 | 160 | |
04/07/1999 | 3.7 | 190 | 68 | 110 | |
04/05/2000 | 4.2 | 240 | 113 | 130 | |
15/07/2000 | 4.0 | 200 | 105 | 110 | |
26/04/2002 | 9.2 | 300 | 127 | Nd | |
19/06/2002 | 7.2a | 170a | 78 | Nd | |
15/04/2003 | 7.2a | 380 | 181 | Nd | |
18/06/2003 | 7.2a | 150 | 62 | Nd | |
Chemical fertiliser | 04/07/1998 | 120 | 60 | 120 | |
26/04/1999 | 120 | 60 | 120 | ||
04/07/1999 | 120 | 60 | 120 | ||
04/05/2000 | 120 | 60 | 120 | ||
15/07/2000 | 120 | 60 | 120 | ||
26/04/2002 | 100 | 50 | 100 | ||
19/06/2002 | 100 | 50 | 100 | ||
27/08/2002 | 100 | 50 | 100 | ||
15/04/2003 | 100 | 50 | 100 | ||
18/06/2003 | 100 | 50 | 100 | ||
15/08/2003 | 100 | 50 | 100 |
Nd = not determined.
Estimated value based upon mean of previous applications.