有机-无机肥协同调控小麦-玉米两熟作物产量及土壤培肥效应

郑福丽,刘苹,李国生,张柏松,李燕,魏建林,谭德水

Organic-Inorganic Coordinated Regulation to Wheat-Maize Double Crop Yield and Soil Fertility

ZHENG FuLi,LIU Ping,LI GuoSheng,ZHANG BoSong,LI Yan,WEI JianLin,TAN DeShui

表5 小麦-玉米周年氮肥偏生产力

Table 5 Wheat - maize annual nitrogen fertilizer productivity

处理 Treatment 化肥氮 Fertilizer N (kg·hm-2) 有机肥氮 Organic N (kg·hm-2) 氮肥偏生产力 NPFP (kg·kg-1) 2018 2019 F 411 0 39.2b 39.6b FA 411 0 40.6a 40.9a FM1 411 32.55 38.4b 39.9b FM2 411 65.10 36.7c 38.2bc FM3 411 97.65 36.2c 37.7c FAM2 411 65.10 38.1b 39.8b