氮素穗肥施用期对一季籼粳杂交稻氮肥效率、产量和品质的影响

乐丽红, 刘凯丽, 陈忠平, 王斌强, 唐舟, 程飞虎, 张昆

Effects of Application Time of N Fertilizer at Panicle Differentiation Stage on the Nitrogen Use Efficiencies, Yield and Quality of One-Season Indica-Japonica Hybrid Rice

Le Lihong, Liu Kaili, Chen Zhongping, Wang Binqiang, Tang Zhou, Cheng Feihu, Zhang Kun

表3 产量及其构成因素的相关系数（2019年）

Table 3 Correlation coefficients between yield and its components in 2019

相关指标Related indicator 穗粒数Spikelets per panicle 结实率Seed-setting rate 有效穗数Efficient panicle 千粒重1000-grain weight Pearson相关性Pearson correlation 0.525** 0.208 0.354 -0.324 显著性（双侧）Significance (bilateral) 0.003 0.271 0.055 0.081 N 30 30 30 30