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10 我国春麦区主要绿肥作物生物量及养分量

Table 10 Biomass and its nutrient contents of some major green manure in different spring wheat regions of China

类型 Type 生物量 Biomass (Fresh weight, t·hm-2) 氮还田量 Nitrogen returning per unit area (kg·hm-2) 磷还田量 Phosphorus returning per unit area (kg·hm-2) 钾还田量 Potassium returning per unit area (kg·hm-2) 箭筈豌豆 Vicia sativa 22.5-30 112.5-150 29.3-39 54-72 毛苕子 Vicia villosa 15-37.5 82.5-206.2 22.5-56.3 40.5-101.3 草木樨 Melilotus suaveolens 19.5-37.5 124.8-240 31.2-60 76.1-146.3 沙打旺 Astragalus adsurgens 30-60 204-408 54-108 225-450 小冠花 Coronilla varia 30-60 198-396 45-90 366-732 田菁 Sesbania cannabina 22.5-30 114.75-153 31.5-42 40.5-54 饲用油菜 Brassica campestris 45-75 246.6-411 82.8-138 425.7-709.5 黑麦草 Lolium perenne 45-60 153-204 40.5-54 166.5-222 紫花苜蓿 Medicsgo sativa 30-60 144-288 27-54 144-288