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3 氮肥利用率在品种及施氮量间的方差分析

Table 3 Analysis of variance for nitrogen use efficiency of rice among varieties and nitrogen application rates

变异来源Source of variation NDE NGE NPE NRE NAE NPPE 施氮量Nitrogen application rate (N) 12.944** 51.999** 28.167** 15.819** 56.786** 66.919** 品种Variety (V) 186.170** 165.450** 39.250** 7.618** 29.263** 619.715** 施氮量×品种（N×V） 1.327 2.065** 2.236** 3.808** 5.722** 8.385**