氮肥运筹对湘南双季杂交稻生长发育与稻米品质的影响

袁帅, 苏雨婷, 陈平平, 易镇邪

Effects of Nitrogen Management on Yield Formation and Rice Quality of Double Cropping Hybrid Rice in Southern Hunan

Yuan Shuai, Su Yuting, Chen Pingping, Yi Zhenxie

表7 氮肥运筹对稻米外观品质的影响

Table 7 Effects of nitrogen fertilizer management on rice appearance quality

季别 Season 品种 Variety 处理 Treatment 垩白粒率 Chalky grain rate (%) 垩白度 Chalkiness (%) 粒长 Grain length (mm) 粒宽 Grain width (mm) 长宽比 Length-width ratio 早稻Early rice 株两优819 N1 14.09a 3.34a 7.20a 2.03a 3.55a N2 9.54b 2.32b 7.13a 2.10a 3.40a N3 13.17a 3.04a 7.05a 2.00a 3.53a 陆两优996 N1 15.91a 3.61a 7.02a 2.01a 3.50a N2 12.68b 2.66b 7.14a 2.03a 3.52a N3 14.77a 3.29a 6.99a 2.04a 3.43a 晚稻Late rice 盛泰优018 N1 12.64a 2.79a 6.96a 1.98a 3.52a N2 9.29b 1.76b 6.96a 1.96a 3.55a N3 11.11a 1.98b 6.97a 1.96a 3.56a H优518 N1 20.51a 4.24a 7.16a 2.01a 3.56a N2 14.64c 2.85b 7.28a 2.03a 3.59a N3 18.21b 4.01a 7.30a 2.03a 3.60a