沿黄灌区不同种植模式下麦后复种油菜适宜施氮量研究

刘陈, 王伟妮, 廖世鹏, 任涛, 郭晨, 许源源, 于道海, 刘俊梅, 张豪强, 孙霞, 鲁剑巍

Study on Optimal Nitrogen Application Rate for Relay Cropped Rapeseed after Wheat under Different Planting Patterns in the Yellow River Irrigation Region

Liu Chen, Wang Weini, Liao Shipeng, Ren Tao, Guo Chen, Xu Yuanyuan, Yu Daohai, Liu Junmei, Zhang Haoqiang, Sun Xia, Lu Jianwei

表2 不同种植模式下施氮量对油菜养分积累量的影响

Table 2 The effect of nitrogen application rate on nutrient accumulation in rapeseed under different planting patterns kg/hm2

处理 Treatment 施氮量 Nitrogen application rate 碳积累量 Carbon accumulation 氮积累量 Nitrogen accumulation 磷积累量 Phosphorus accumulation 钾积累量 Potassium accumulation T1 0 1689±68d 106±3d 33±2c 182±7d 30 2392±33c 146±1c 42±1b 253±2c 60 3095±187b 188±9b 54±3a 323±21b 90 3337±41a 200±4a 56±2a 345±6ab 120 3480±60a 203±4a 56±3a 353±11a T2 0 1928±37e 116±5e 35±2d 203±5e 30 2530±59d 150±5d 43±2c 261±8d 60 3057±62c 178±4c 51±4b 314±3c 90 3589±77b 204±1b 56±1a 366±3b 120 3800±80a 215±3a 57±1a 381±11a T3 0 1766±152d 110±12d 33±4c 190±17d 30 2407±46c 147±4c 42±3b 251±2c 60 2984±81b 180±7b 50±3a 310±8b 90 3439±220a 202±10a 54±4a 347±15a 120 3616±78a 208±3a 54±4a 359±7a 方差分析Analysis of variance F-value 种植模式Cropping pattern (C) 12.7*** 2.0ns 1.7ns 8.7** 施氮量Nitrogen application rate (N) 484.4*** 411.6*** 109.8*** 446.2*** 种植模式×施氮量C×N 1.4ns 1.7ns 0.4ns 1.6ns