长期施肥紫色土有效磷变化及其对稻麦轮作产量的影响

任嘉欣,刘京,陈轩敬,张跃强,张勇,王洁,石孝均

Variation of Available Phosphorus in Purple Soil and Its Effects on Crop Yield of Rice-Wheat Rotation Under Long-Term Fertilizations

REN JiaXin,LIU Jing,CHEN XuanJing,ZHANG YueQiang,ZHANG Yong,WANG Jie,SHI XiaoJun

表1 长期施肥下紫色土水稻和小麦的产量及100 kg籽粒需磷量

Table 1 Plant P uptake per 100 kg grains yield in purple soil under long-term fertilizations

处理 Treatment 产量 Yield (kg·hm-2) 100 kg籽粒需磷量 P uptake per 100 kg grains yield (kg) 水稻Rice 小麦Wheat 水稻Rice 小麦Wheat CK 6115.8±1271.1e 3099.9±790.9c 0.26±0.03b 0.33±0.06b N 9458.1±1804.4c 3727.0±1382.8c 0.17±0.07c 0.25±0.02c NP 11060.0±1886.9b 5667.5±1378.2b 0.38±0.04a 0.46±0.05a NK 11151.5±1916.0b 3687.4±1632.2c 0.27±0.04b 0.25±0.05b PK 7939.6±1120.4d 3698.0±1061.4c 0.38±0.03a 0.57±0.02a NPK 12444.9±1793.3a 7015.6±1265.8a 0.36±0.03a 0.48±0.03a NPKM 12441.7±2033.1a 6958.7±1369.1a 0.37±0.03a 0.50±0.06a 1.5NPKM 12760.5±1937.4a 7624.9±1590.5a 0.41±0.04a 0.52±0.03a NPKS 13148.4±1910.1a 6883.9±1619.9a 0.39±0.02a 0.48±0.03a M 8174.1±2174.2d 3161.9±913.2c 0.32±0.03b 0.39±0.05b