持续性秸秆还田配施化肥对油菜-水稻轮作周年氮磷径流损失的影响

靳玉婷,刘运峰,胡宏祥,穆静,高梦瑶,李先藩,薛中俊,龚静静

Effects of Continuous Straw Returning with Chemical Fertilizer on Annual Runoff Loss of Nitrogen and Phosphorus in Rice-Rape Rotation

JIN YuTing,LIU YunFeng,HU HongXiang,MU Jing,GAO MengYao,LI XianFan,XUE ZhongJun,GONG JingJing

表1 不同秸秆养分含量及每年氮磷养分投入量

Table 1 Different straw nutrient content and annual input of nitrogen and phosphorus

秸秆种类 Types of straw 全碳 Total C (g·kg-1) 全氮 Total N (g·kg-1) 全磷 Total P (g·kg-1) 全钾 Total K (g·kg-1) 氮 Nitrogen (kg·hm-2) 磷 Phosphorus (kg·hm-2) 油菜 Rape 403.40 6.65 0.67 17.58 42.60 4.56 水稻 Rice 427.59 7.83 0.79 21.80 53.76 6.41