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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (24): 52-55.doi: 10.11924/j.issn.1000-6850.2014-0075

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

山区玉米品种种植密度和施肥量研究

刘和平 刘培勋   

  • 收稿日期:2014-01-08 修回日期:2014-02-17 出版日期:2014-08-25 发布日期:2014-08-25
  • 基金资助:
    四川省农业科技成果转化项目 （川财农 【2011】 368号）。

Study on Planting Density and Fertilizer Rate of Hybrid Maize Cultivar Growing in Area

  • Received:2014-01-08 Revised:2014-02-17 Online:2014-08-25 Published:2014-08-25

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摘要： 为了研究不同种植密度和施肥量对玉米新品种‘种都100’产量和农艺性状的影响，试验设置了42000、48000、60000株/hm2 3个密度梯度，复合肥和尿素各450、600、900 kg/hm2 3个施肥量水平，研究了玉米产量和农艺性状在不同种植密度和施肥量下的变化规律。结果表明，不同种植密度、施肥量及二者之间的互作效应，导致产量存在显著差异。‘种都100’的产量随着种植密度和施肥量的增加而增加，但是当密度和施肥量太高时，产量出现降低。农艺性状变化规律与产量变化有密切关系。在密度和施肥量互作效应下，‘种都100’在山区获得高产的最理想配置为密度48000株/hm2，基施复合肥600 kg/hm2，追施尿素600 kg/hm2，产量为7645.5 kg/hm2。该试验为‘种都100’在四川山区获得高产提供了科学依据。

关键词: 思考, 思考

Abstract: In order to study the impact on yield and agronomic characters of a new hybrid maize cultivar‘Zhongdu 100’under different planting density and fertilizer rate, three planting density 42000, 48000, 60000 per hectare and three fertilizer 450, 600, 900 kg/hm2 were set to study the change rules of yield and agronomic characters. The results showed that the different planting density, fertilizing amount and their interaction make the output to have the very significant differences. Moderately increasing the density and fertilizer can increase production, which was to reduce when overdose. The variation of agronomic characteristics was related to yield of maize. Eventually, the optimal planting density and fertilizer rate of‘Zhongdu 100’planted in a mountainous area were 48000 per hectare, and compound fertilizer 600 kg and carbamide 600 kg per hectare, while the yield was 7645.5 kg/hm2. This experiment provided a scientific basis for high-yield cultivation of‘Zhongdu 100’in the mountain area of Sichuan Province.