我国春麦区小麦化肥有机替代潜力分析

贾立国,石晓华,苏亚拉其其格,秦永林,于静,陈杨,樊明寿

Potential Analysis of Organic Fertilizer Substitution for Chemical Fertilizer in Spring Wheat Regions of China

JIA LiGuo,SHI XiaoHua,SUYALA Qiqige,QIN YongLin,YU Jing,CHEN Yang,FAN MingShou

表8 我国各省份春小麦秸秆还田化肥有机替代潜力

Table 8 Potential of chemical fertilizer substitution under straw returning of spring wheat in different regions of China

地区 Region 氮肥可替代量 Amount of Nitrogen substitution (t) 磷肥可替代量 Amount of phosphorus substitution (t) 钾肥可替代量 Amount of potassium substitution (t) 氮肥可替代量 Nitrogen substitution per unit area (kg·hm-2) 磷肥可替代量 Phosphorus substitution per unit area (kg·hm-2) 钾肥可替代量 Potassium substitution per unit area (kg·hm-2) 内蒙古 IM 2769.77 743.87 13768.47 4.11 1.10 20.43 新疆 XJ 2788.93 749.02 13863.76 6.84 1.84 33.98 甘肃 GS 1486.14 399.13 7387.56 7.53 2.02 37.42 青海 QH 583.83 156.80 2902.21 5.19 1.40 25.82 黑龙江 HLJ 495.38 133.04 2462.52 4.87 1.31 24.19 宁夏 NX 399.26 107.23 1984.72 6.06 1.63 30.12 总计 Total 8523.31 2289.09 42369.25 平均 Mean 5.71 1.53 28.37