有机肥替代化肥对水稻产量、土壤肥力及农田氮磷流失的影响

马凡凡,邢素林,甘曼琴,刘佩诗,黄瑜,甘晓玉,马友华

Effects of Organic Fertilizer Substituting for Chemical Fertilizer on Rice Yield, Soil Fertility and Nitrogen and Phosphorus Loss in Farmland

Fanfan Ma,Sulin Xing,Manqin Gan,Peishi Liu,Yu Huang,Xiaoyu Gan,Youhua Ma

表4 有机肥替代化肥处理稻季农田径流TN、TP平均浓度及流失总量

Table 4 Average runoff TN and TP concentrations and total losses under organic fertilization substituting for chemical fertilizer treatments in field during the rice season

处理 Treatment 平均浓度(mg/L) Average concentration 流失总量(kg/hm2) Total loss TN TP TN TP CK 1.40d 0.033e 4.73e 0.111e CF 2.73a 0.063d 9.43a 0.243d M1 2.62a 0.062d 9.15ab 0.242d M2 2.49b 0.073c 8.32c 0.281c M3 2.14c 0.492b 7.39d 1.732b F1 2.56a 0.062d 9.09b 0.246d F2 2.36b 0.080c 8.12c 0.292c F3 2.07c 0.517a 7.11d 1.815a