| 全膜双垄沟集水条件下糯玉米氮肥高效运筹技术 |
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| 引用本文： | 张素梅.全膜双垄沟集水条件下糯玉米氮肥高效运筹技术[J].农业工程,2012,2(5):68-71. |
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| 作者姓名： | 张素梅 |
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| 作者单位： | 甘肃省平凉市农业科学研究所，平凉744000 |
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| 摘 要： | 以郑黄糯2号为材料，进行玉米追氮量、施用比例及缓释肥料施肥效果的研究。结果表明:在磷肥施用量相等的情况下，播前基施氮肥180 kghm2的处理产量最高，较基施氮肥90kghm2增产310%，与基施氮肥270 kghm2和225 kghm2的处理差异不显著，与其他处理之间差异极显著；分次施氮试验中以施氮量180 kghm2，基施、拔节期追施、大喇叭口期追施比例为8∶4∶0的处理为最佳，产量、氮肥效益为最高；缓释N肥肥效试验中，各个处理间在植株性状方面均比对照有不同程度的增长，在产量及经济效益上，总施氮量180 kghm2各种缓释氮肥的应用效果经济效益最高。
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| 关 键 词： | 糯玉米 氮肥 施用量 施用比例 缓释氮肥 |
Nitrogenous Fertilizer Efficient Utilization of Waxy Corn with Whole
Plastic Film Mulching on Double Ridges and Planting |
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| Zhang Sumei.Nitrogenous Fertilizer Efficient Utilization of Waxy Corn with Whole
Plastic Film Mulching on Double Ridges and Planting[J].Agricultural Engineering,2012,2(5):68-71. |
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| Authors: | Zhang Sumei |
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| Institution: | (Pingliang Institute of Agriculture Science Research,Pingliang 74400,China) |
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| Abstract: | Taking Zhenghuangruo 2 as sample,topdressing nitrogen amount,using proportion and slow-release fertilizer effects were discussed.Results showed that 180 kg hm2 nitrogen application as base fertilizer increased yield by 31.0% than 90 kg hm2 nitrogen with equal amount of phosphorus fertilizer.270 kg hm2 and 225 kg hm2 nitrogen application as base fertilizer had not significant difference,but had significant difference with other treatments.Optimum fertilizer application ratio of base fertilizer,jointing stage topdressing and flare opening stage topdressing was 8:4:0 with 180 kg hm2 nitrogen fertilizer during whole growth period,and had the highest yield and nitrogen efficiency.Plant characters in each treatment compared with control that had varying degrees of increase by using slow-release nitrogen fertilizers.Effects and economic efficiency were the highest with 180 kg hm2 slow-release nitrogen fertilizers during whole growth period. |
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| Keywords: | Waxy maize Nitrogen fertilizer Fertilizer amount using proportion Slow-release nitrogenous fertilizer |
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