| 陇西河流域水稻平衡施肥对土壤氮磷钾养分的影响研究 |
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| 引用本文： | 漆辉,伍钧,韩巧,叶小丽,扬琴.陇西河流域水稻平衡施肥对土壤氮磷钾养分的影响研究[J].湖北农业科学,2011,50(13):2618-2622. |
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| 作者姓名： | 漆辉 伍钧 韩巧 叶小丽 扬琴 |
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| 作者单位： | 1. 四川农业大学资源环境学院,成都,611130
2. 四川省雅安市雨城区农业局,四川,雅安,625014 |
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| 基金项目： | 国家科技支撑计划项目(2008BADC4B0X-4); 四川省教育厅自然科学重点项目基金(2006017) |
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| 摘 要： | 采用"3414"二次回归最优设计方案,研究了陇西河流域水稻平衡施肥对土壤氮、磷、钾养分变化的影响。结果表明,水稻种植后,各处理土壤碱解氮、速效钾含量均有不同程度地提高;土壤全磷含量不同程度地降低,而土壤速效磷含量变化差异较大;大多数处理土壤全氮含量不同程度地降低;土壤碱解氮、速效磷、速效钾的含量分别与施氮量、施磷量、施钾量呈极显著正相关。同时,随着施氮量的增加,土壤速效磷的含量也随之增加。
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| 关 键 词： | 水稻 “3414”试验 肥力 面源污染 陇西河流域 |
Effect of Balanced Fertilization of Rice on the Content of NPK in Soil in Longxi River Basin |
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| QI Hui,WU Jun,HAN Qiao,YE Xiao-li,YANG Qin.Effect of Balanced Fertilization of Rice on the Content of NPK in Soil in Longxi River Basin[J].Hubei Agricultural Sciences,2011,50(13):2618-2622. |
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| Authors: | QI Hui WU Jun HAN Qiao YE Xiao-li YANG Qin |
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| Institution: | QI Hui1,WU Jun1,HAN Qiao1,YE Xiao-li2,YANG Qin1(1.College of Resources and Environment,Sichuan Agricultural University,Chengdu 611130,China,2.Agriculture Bureau of Yucheng County in Ya'an City,Ya'an 625014,Sichuan,China) |
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| Abstract: | 3414 optimal design of quadratic regression test program was adopted to study the effect of balanced fertilization of rice on the contents of N,P and K in soil,in order to provide a reliable theoretical foundation to maintain soil fertility,control and prevent the area-source pollution in Longxi River Basin.The results showed that after planting,the contents of alkali-hydrolyzable nitrogen and available potassium in soil of all the treatments increased to different degrees.The content of total phosphorus in... |
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| Keywords: | rice 3414 test fertility area-source pollution Longxi river basin |
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