Cultivation of High-yield-high-efficiency,Large-spike Hybrid Rice,Jinfu 1 You 527
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摘要: 运用最优回归设计,对大穗型杂交稻京福1优527进行密度和氮、磷、钾肥施用量4项栽培措施与产量、净收入之间的关系进行试验研究。结果表明,4项措施对产量、净收入都有影响,经微机模拟筛选出高产高效的技术措施是每公顷插22万~32万丛,施肥量折算为N 134.9~169.7 kg、P2O5 42.0~71.3 kg、K2O75.5~133.5 kg。Abstract: Optimization of N,P and K fertilization for high density cultivation of the large-spike type hybrid rice, Jinfu 1 You 527,was conducted.Regression analyses between the cultivation conditions and rice yield and net income from the harvest were performed.The results showed that all factors examined had a significant effect on yield and net income.Using a computerized imitative screening method,the optimized number of rice bushes per hectare was 220 000 to 320 000,and the fertilization rates for N was 134.9-169.7kg/hectare,for P2O5 was 42.0-71.3kg/ hectare and for K2O was 75.5-133.5kg/hectare.
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Key words:
- Hybrid rice /
- Jinfu 1 You 527 /
- optimization /
- efficiency analysis /
- imitative screening
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[1] 徐中儒.回归分析与试验设计[M].北京:中国农业出版社,1998.
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