| 种植密度和氮肥用量在玉米高产栽培中的重要性研究 |
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| 引用本文： | 范厚明,付业春.种植密度和氮肥用量在玉米高产栽培中的重要性研究[J].安徽农业科学,2009,37(16):7406-7407. |
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| 作者姓名： | 范厚明 付业春 |
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| 作者单位： | 贵州省毕节地区农业科学研究所,贵州毕节,551700;贵州省毕节地区农业科学研究所,贵州毕节,551700 |
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| 基金项目： | 贵州省重点成果推广计划项目 |
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| 摘 要： | 目的]进一步探讨杂交玉米新品种毕单15号的种植密度和氮肥施用量,提出相应的综合高产栽培技术。方法]以毕单15号玉米为供试材料,设置60000、67500、75000株/hm23种不同种植密度及285、330、385 kg/hm23个氮肥用量,随机区组排列,研究种植密度和氮肥用量对玉米产量的影响。结果]毕单15号玉米在中上等肥力土壤条件下,以中高种植密度（67500苗/hm2或75000苗/hm2）、高氮量（385 kg/hm2）栽培条件下的产量较高,经济效益较好。通过测土施肥与适当增加种植密度,可以获得8779kg/hm2的玉米单产。结论]种植密度和氮肥施用量是影响玉米产量的两大重要因素,要提高玉米单产,就必须采用合理的种植密度和适量的氮肥施用量。
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| 关 键 词： | 种植密度 氮肥用量 玉米栽培 重要性 |
Research on the Impact of Planting Density and Amount of Nitrogen Fertilizer on High-yielding Cultivation of Hybrid Corn |
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| Institution: | Fan Hou-ming et al (Bijie Prefecture Agricultural Institute, Bijie, Guizhou 551700) |
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| Abstract: | Objective] The cultivation technique of high-yieliding hybrid Corn was presented through the research on the application of nitrogen fertilizer and the planting density.Method] The hybrid corn combination-Bidan No.15 being used as the experimental material,the effect of the application of nitrogen fertilizer(285,330 and 385 kg/hm2) and the planting density(60000,67500 and 75000 seedling/hm2) on its yield was analyzed with the design of random block.Results] Beyond the middle level of soil fertility,the planting density of medium-high level(67 500 or 75 000 seedling/hm2) and high leve of N-fertilization(385 kg/hm2) could promote its high yield and the yield of the hybrid corn could be 8 779 kg/hm2 under the fertilization based on soil-testing and reasonable planting density.Conclusion] The reasonable planting density and fertilization,two important factors affecting the corn yield,could improve corn yield. |
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| Keywords: | Planting density Amount of nitrogen fertilizer Hybrid corn cultivation importance |
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