Table 1 Growing season (May to August) precipitation (GSP, mm), nutrients applied, grain yield and biomass of wheat grown in silt loam and clay soil from 1982 to 2011
Year | GSP (mm) | Nutrients applied (NO3-N kg ha−1) | Grain yield (kg ha−1) | Biomass (kg ha−1) | |||
|---|---|---|---|---|---|---|---|
| Â | Â | Silt loam | Clay | Silt loam | Clay | Silt loam | Clay |
1982 | 243 | 62 | 43 | 2839 (245) | 1577 (63) | 8443 (837) | 3791 (216) |
1983 | 186 | 55 | 55 | 2111 (56) | - | 5355 (208) | - |
1984 | 94 | 50 | 55 | 651 (154) | 1166 (181) | 1933 (353) | 3062 (450) |
1985 | 73 | 35 | 25 | 764 (146) | 1156 (197) | 1999 (158) | 2552 (378) |
1986 | 205 | 20 | 20 | 2873 (237) | - | 6751 (551) | - |
1987 | 129 | 45 | 45 | 1399 (161) | 783 (124) | 2796 (366) | 1450 (251) |
1988 | 143 | 38 | 5 | 532 (83) | - | 1288 (176) | - |
1989 | 210 | 19 | 23 | 2258 (157) | 1663 (181) | 6216 (201) | 4881 (449) |
1990 | 179 | 45 | 32 | 2485 (62) | 2159 (150) | 6153 (138) | 5240 (486) |
1991 | 302 | 55 | 55 | 2770 (275) | 3052 (45) | 7827 (627) | 8669 (561) |
1992 | 183 | 58 | 60 | 1866 (56) | 2017 (28) | 5240 (98) | 4817 (54) |
1993 | 175 | 60 | 55 | 2430 (97) | 2783 (331) | 5950 (208) | 7167 (575) |
1994 | 160 | 54 | 58 | 2384 (149) | 2518 (340) | 7553 (600) | 6363 (859) |
1995 | 189 | 61 | 64 | 2809 (313) | 2499 (427) | 8069 (706) | 7459 (1264) |
1996 | 168 | 53 | 60 | 2320 (175) | 2276 (111) | 6331 (695) | 6263 (114) |
1997 | 163 | 58 | 62 | 2775 (432) | 2511 (148) | 6689 (813) | 6581 (394) |
1998 | 166 | 64 | 63 | 1072 (171) | 1337 (53) | 4220 (427) | 4041 (157) |
1999 | 240 | 49 | 62 | 2416 (186) | 3234 (256) | 6395 (707) | 7966 (817) |
2000 | 245 | 65 | 66 | 2035 (54) | 1962 (488) | 6386 (310) | 5415 (814) |
2001 | 112 | 63 | 64 | 970 (255) | 663 (101) | 2072 (588) | 1402 (216) |
2002 | 237 | 32 | 25 | 2354 (388) | 2100 (307) | 5463 (806) | 4643 (731) |
2003 | 129 | 60 | 51 | 1675 (227) | 2145 (152) | 5048 (773) | 4999 (394) |
2004 | 211 | 46 | 46 | 3009 (83) | 2690 (61) | 7668 (147) | 7305 (486) |
2005 | 167 | 60 | 56 | 2273 (263) | 2948 (205) | 6566 (247) | 8111 (422) |
2006 | 269 | 58 | 60 | 1661 (196) | 2037 (149) | 4550 (377) | 5620 (329) |
2007 | 110 | 61 | 65 | 1264 (129) | 2193 (138) | 3482 (403) | 5476 (596) |
2008 | 253 | 40 | 55 | 2176 (260) | 2970 (265) | 4860 (736) | 8428 (655) |
2009 | 94 | 55 | 57 | 1374 (193) | 2278 (215) | 2782 (378) | 4760 (454) |
2010 | 286 | 49 | 54 | 2472 (282) | 2932 (416) | 6346 (780) | 6997 (905) |
2011 | 240 | 55 | 57 | 2880 (492) | 2638 (156) | 7478 (1241) | 6387 (405) |
Mean | 185 | 51 | 49 | 2030 | 2159 | 5397 | 5352 |
