江淮稻作区氮肥用量对高产优质中籼稻产量、品质及氮肥利用效率的影响

阮新民, 从夕汉, 杜弘杨, 岳伟, 施伏芝, 罗彦长, 王元垒, 罗志祥

Effects of Nitrogen Fertilizer Rates on Grain Yield, Grain Quality, and Nitrogen Use Efficiency of High-Yield and High-Quality Medium Indica Rice in the Jianghuai Rice-Growing Region

Ruan Xinmin, Cong Xihan, Du Hongyang, Yue Wei, Shi Fuzhi, Luo Yanchang, Wang Yuanlei, Luo Zhixiang

表2 产量及其构成因素在品种间及施氮量间的方差分析

Table 2 Analysis of variance for yield and its components among varieties and nitrogen application rates

变异来源 Source of variation 产量 Yield 有效穗数 Effective panicles 每穗粒数 Grain number per panicle 结实率 Seed-setting rate 千粒重 1000-grain weight 施氮量Nitrogen application rate (N) 93.29** 451.12** 32.20** 2.455* 4.722** 品种Variety (V) 14.67** 287.15** 100.94** 21.921** 76.376** 施氮量×品种（N×V） 1.91** 39.12** 16.56** 1.687* 1.873*