摘要
在中等肥力旱地上,以影响玉米产量较大的肥料和密度两个因子为对象,研究了长玉16玉米的增产潜力与肥料、密度综合效应。结果表明,长玉16抗旱、抗倒伏性强,耐瘠、耐肥力好,丰产、抗病性突出。公顷产量11 700 kg左右的肥料、密度组合为:施N,P纯养分225～450 kg/hm2,N∶P为2∶1,密度4.95万～5.45万株/hm2。对肥料、密度与产量的关系配置了二元二次效应方程,各因子对产量的影响程度为肥料>肥料×密度>密度。
In middle fertility dryland, the impact to corn production of fertilizer and density factor to Changyu 16 maize and fertilizer production potential of the combined effect was conducted. The results showed that： Changyu 16 was drought-resistant, lodging strong resistant, tolerant to poor soil and fertility, high-yielding, outstanding disease resistant. Fertilizer application for hectare output around 11 700 kg is the optimum combination of nitrogen and phosphorus-nutrients 225 - 450 kg/hm^2, nitrogen and phosphorus in ratio of 2 ： 1 and density 49 500 - 54 500 / hm^2. And the production of fertilizer on the relationship between the configuration of the dual effect of the second equation, the factors on the yield were in an order of fertilizer 〉 fertilizer×density 〉 density.
出处
《山西农业科学》
2009年第3期50-53,共4页
Journal of Shanxi Agricultural Sciences
基金
山西省科技产业化环境建设项目(051001-4)
关键词
长玉16
栽培技术
Changyu 16
Cuhivation techniques
