长江中下游冬油菜产区有机无机肥配施下减氮增效潜力分析

蒋倩红,陆志峰,赵海燕,郭俊杰,刘文波,凌宁,郭世伟

Potential Analysis of Reducing Chemical Nitrogen Inputs While Increasing Efficiency by Organic-Inorganic Fertilization in Winter Rapeseed Producing Areas of the Middle and Lower Reaches of the Yangtze River

JIANG QianHong,LU ZhiFeng,ZHAO HaiYan,GUO JunJie,LIU WenBo,LING Ning,GUO ShiWei

表3 各施肥处理对油菜化学氮肥利用率的影响

Table 3 Effects of the fertilization regimes on chemical N use efficiency in rapeseed

处理 Treatment 氮肥偏生产力PFPN (kg·kg-1) 氮肥农学效率AEN (kg·kg-1) 高淳 Gaochun 安仁 Anren 沙洋 Shayang 休宁 Xiuning 当涂 Dangtu 高淳 Gaochun 安仁 Anren 沙洋 Shayang 休宁 Xiuning 当涂 Dangtu N0 - - - - - - - - - - N90 12.6±3.9 ab * 7.2±1.0 bc ** 9.6±0.4 ab ** 19.0±0.4 a ** 21.3±3.4 a * 11.2±3.9 ab * 5.9±1.0 a ** 8.6±0.4 ab ** 4.7±0.4 c ** 7.6±0.3 bc * N135 13.7±1.4 a * 9.4±2.4 a NS 9.8±0.9 a * 16.1±0.7 b ** 19.7±1.1 a * 12.8±1.4 a * 7.3±3.2 a NS 9.1±0.9 a * 6.5±0.7 b ** 9.2±1.1 a * N180 11.7±1.6 ab * 8.7±0.4 ab ** 8.4±1.0 bc * 16.6±0.2 b ** 15.5±1.1 b * 11.0±1.6 ab * 8.1±0.4 a ** 8.0±1.0 ab * 9.4±0.2 a ** 7.7±1.1 ab * N225 11.0±0.5 ab NS 8.3±0.3 ab ** 9.5±0.0 ab NS 13.5±1.3 c * 13.3±0.5 bc ** 10.5±0.5 ab NS 7.8±0.3 a ** 9.1±0.0 a NS 7.7±1.3 b * 7.0±0.5 bc ** N270 9.2±0.7 b NS 6.1±0.3 c ** 8.0±0.1 c ** 12.5±0.9 c NS 11.3±0.9 c NS 8.8±0.7 b NS 5.6±0.3 a ** 7.7±0.1 b ** 7.7±0.9 b NS 6.1±0.9 c NS M+N0 - - - - - - - - - - M+N90 22.9±0.7 a 14.8±0.4 a 16.0±0.4 a 26.8±1.3 a 29.6±3.6 a 21.5±0.7 a 13.5±0.4 a 15.0±0.4 a 15.5±1.7 a 13.8±3.6 a M+N135 17.4±1.8 b 10.7±0.0 b 13.5±1.6 b 24.7±0.6 b 23.6±1.1 b 16.5±1.8 b 9.9±0.0 bc 12.8±1.6 b 15.1±0.6 a 13.1±1.1 a M+N180 15.2±0.6 b 14.6±0.1 a 11.9±0.9 b 20.5±1.2 c 19.6±1.9 c 14.3±0.4 c 14.0±0.1 a 11.4±0.9 bc 13.3±1.2 ab 11.8±1.9 ab M+N225 12.4±1.0 c 11.2±0.4 b 9.9±0.8 c 16.3±0.7 d 15.9±0.3 d 11.8±1.0 c 10.7±0.4 b 9.5±0.8 c 10.5±0.7 bc 9.6±0.3 bc M+N270 9.6±0.9 c 8.6±0.3 c 9.1±0.3 c 13.1±0.8 e 13.3±0.8 d 10.0±0.8 c 8.9±1.2 c 8.8±0.3 c 8.3±0.8 c 8.0±0.8 c N ** ** ** ** ** ** ** ** ** ** M ** ** ** ** ** ** ** ** ** ** N×M ** ** ** ** NS ** * ** ** NS