
穗肥施用时期对喀斯特区域杂交稻产量及农艺性状的影响
Effects of Panicle Fertilizer Application Stage on Yield and Agronomic Characteristics of Hybrid Rice in Karst Region
杨敏,何志旺,张恒栋,张发丽* . 穗肥施用时期对喀斯特区域杂交稻产量及农艺性状的影响[J]. 中国稻米, 2018 , 24(4) : 132 -134 . DOI: 10.3969/j.issn.1006-8082.2018.04.034
A field experiment was conducted to explore the application stage of panicle fertilizer on yield and agronomic characteristics of hybrid rice in 2015, using Y-Liangyou-1, Yuyou 7109 and Jiangyou 919 as materials. The results showed that, applying panicle fertilizer at inverse 3rd leaf could get highest yield in all the three hybrid rice, and the yield were increased by 4.26%~9.01%, 2.12%~19.22%, 3.43%~9.93% compared with the other treatments; the 1000-grain weight and panicle length were also highest in applying panicle fertilizer at inverse 3rd leaf; the plant height, the length and the width of the top three leaves were decreased with the delaying of panicle fertilizer application period.
Key words: rice; panicle fertilizer; fertilization stage; yield; agronomic characteristics
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