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2 氮肥运筹对水稻叶片 SPAD 值的影响

Table 2 Effects of nitrogen fertilizer management on leaf SPAD values of rice

季别Season 品种Variety 处理Treatment 分蘖期Tillering stage 孕穗期Booting stage 齐穗期Full heading stage 灌浆期Filling stage 早稻Early rice 株两优819 N1 37.63a 42.10b 44.67b 43.43b N2 36.73b 44.67a 47.53a 46.07a N3 36.70b 44.40a 46.17a 45.50a 陆两优996 N1 37.90a 41.20b 46.23b 43.10c N2 36.73b 43.91a 48.80a 45.83a N3 35.71c 41.83b 47.57b 44.77b 晚稻Late rice 盛泰优018 N1 41.23a 43.91b 45.57b 44.67b N2 40.87ab 45.86a 48.10a 46.90a N3 40.50b 45.17ab 47.30ab 46.40a H优518 N1 42.40a 44.63b 46.63b 45.30b N2 42.13a 46.73a 48.80a 47.10a N3 39.87b 45.10ab 47.73ab 46.83ab