| 氮磷钾配施对夏玉米主要性状和产量的影响 |
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| 引用本文： | 秦文利,李春杰,刘孟朝,韩宝文.氮磷钾配施对夏玉米主要性状和产量的影响[J].河北农业科学,2006,10(3):27-29. |
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| 作者姓名： | 秦文利 李春杰 刘孟朝 韩宝文 |
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| 作者单位： | 河北省农林科学院农业资源环境研究所,河北,石家庄,050051 |
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| 基金项目： | 中-加合作项目
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PPI/PPIC资助项目 |
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| 摘 要： | 以郑单958为材料,研究了不同氮磷钾配施水平对夏玉米主要性状和产量的影响.结果表明:不同肥料及配施方式在一定程度上影响着玉米的株高、穗位、棒三叶叶面积、穗长和秃尖长度;氮、钾肥对玉米株高、穗位、棒三叶叶面积的影响显著大于磷肥;在一定范围内增施氮肥能显著增加玉米果穗长度;钾肥对玉米果穗秃尖长度的影响大于氮肥和磷肥.目前肥力条件下,以P2O5 150 kg/hm2、K2O 150 kg/hm2和N 300kg/hm2配施比较适宜.
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| 关 键 词： | 氮磷钾 夏玉米 性状 产量 |
| 文章编号： | 1008-1631(2006)03-0027-03 |
| 收稿时间： | 2006-07-24 |
| 修稿时间： | 2006年7月24日 |
Effect of Different NPK Ratios on Main Characteristics and Yield of Summer Corn |
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| QIN Wen-li,LI Chun-jie,LIU Meng-chao,HAN Bao-wen.Effect of Different NPK Ratios on Main Characteristics and Yield of Summer Corn[J].Journal of Hebei Agricultural Sciences,2006,10(3):27-29. |
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| Authors: | QIN Wen-li LI Chun-jie LIU Meng-chao HAN Bao-wen |
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| Institution: | Institute of Agro-resources and Environment, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China |
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| Abstract: | The effect of different NPK ratios on major characteristics and yield of summer corn with cultivar Zhendan958 was studied.The results indicated that:the different NPK ratios affected plant height,cob height,LAI of the three leaves around corn cob,cob length and bare tip length of cob differently.The effect of NK fertilizers on the plant height,cob height,LAI of the three leaves around corn cob were more significant than the P fertilizer's.With the improvement of N fertilizer,the cob length of summer corn had an increasing trend.K fertilizer made more effect on the bare tip length of cob than N and P fertilizers.The corn yield would increase with more N and K fertilizers applied.The optimum fertilization model is the fertilization of P_2O_5 150 kg/hm~2,K_2O 150 kg/hm~2 and N 300 kg/hm~2. |
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| Keywords: | N-P-K Summer corn Plant characteristics Yield |
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