高纬寒地青贮玉米高产栽培数学模型研究
Heilongjiang Agricultural Sciences（2016）
Abstract
为了进一步提高青贮玉米的经济效益,采用二次正交旋转组合设计,研究了密度、氮、磷、钾四因素配合施用对青贮玉米中单5384的影响.结果表明:青贮玉米中单5384产量在76 744.88 kg·hm-2以上的密度范围为7.88万～8.19万株·hm2;施纯氮肥123.61～132.61 kg· hm-2;施磷肥114.21～122.37 kg·hm-2;施钾肥93.57～102.72 kg·hm-2.
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