郭仁怀,卢开阳
S511.04
Guo Renhuai,Lu Kaiyang
通过五元二次回归正交旋转组合设计试验,建立了博优湛19主要农艺措施与产量的数学模型,通过模拟寻优频率分布分析了栽培措施对产量的影响,并通过通径分析研究了产量构成因素对产量的影响,结果表明:博优湛19的主要增产途径是增加有效穗,其次是争大穗。配套的栽培技术模式是:5.4~5.7叶移栽,插植密度39.6~40.2万穴/hm2,施纯N170.7~175.8kg/hm2,P2O5125.4~130.2kg/hm2,K2O126.0~131.4kg/hm2,结合其它科学管理措施,可获得7875kg/hm2以上的产量。
The mathematical model about the relation between 19 main agronomic measurers and yield has been worked out by means of experimental design of positive cross retative regression block with five factors and two times. Though the analysi
郭仁怀,卢开阳.博优湛19高产栽培技术研究[J].华中农业大学学报,1999,18(1):
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