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4 小麦玉米不同部位氮素积累分布

Table 4 Nitrogen accumulation and distribution in different parts of wheat -maize

处理 Treatment 小麦 Wheat 玉米 Maize 籽粒氮素累积量 Grain nitrogen accumulation (kg·hm-2) 叶片氮素累积量Leaf nitrogen accumulation (kg·hm-2) 茎部氮素累积量Stem nitrogen accumulation (kg·hm-2) 氮素收获 指数 NHI (%) 籽粒氮素累积量 Grain nitrogen accumulation (kg·hm-2) 叶片氮素累积量Leaf nitrogen accumulation (kg·hm-2) 茎部氮素累积量Stem nitrogen accumulation (kg·hm-2) 氮素收获 指数 NHI (%) 2018 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 2019 2018 2019 F 164.3c 167.5c 6.2b 6.3b 25.2ab 25.6ab 84.0c 84.0c 125.3c 126.4c 26.1b 26.3b 25.2c 25.5b 70.9b 70.9b FA 172.4bc 173.8bc 5.8b 5.9b 26.2a 26.5a 84.2c 84.3c 136.7b 138.9b 26.8b 27.1b 26.4bc 26.7b 72.0a 72.1a FM1 182.8b 194.8b 6.0b 6.1b 24.5b 25.4ab 86.1b 86.1b 139.4ab 145.3ab 29.2a 30.4a 27.4b 28.6ab 71.0b 71.1ab FM2 184.3b 195.4ab 5.6b 5.8b 24.7b 25.9a 86.2b 86.1b 142.4a 147.7ab 29.8a 31.1a 29.8a 30.1a 70.9b 70.7b FM3 207.6a 215.7a 5.7b 5.8b 23.2b 24.0b 87.7a 87.8a 144.9a 151.3a 30.1a 31.4a 28.0ab 29.3a 71.2b 71.4ab FAM2 200.0a 208.9ab 7.8a 8.2a 25.3a 26.7a 85.4bc 85.3bc 143.7a 149.1a 28.4a 29.7ab 27.4b 28.7a 72.1a 71.9a