施肥模式对日光温室土壤铵态氮和硝态氮的影响
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北京市科技计划课题资助项目(D07050601510703—3)


Effects of Fertilization Patterns on NH+4N and NO-3N in Solar Greenhouse Soils
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    摘要:

    通过种植两茬油菜,设置7种施肥模式:有机肥施氮量600kg/hm2;有机肥施氮量300kg/hm2;无机肥施氮量767kg/hm2;无机肥施氮量383kg/hm2;有机肥施氮量450kg/hm2,无机肥施氮量153kg/hm2;有机肥施氮量300kg/hm2,无机肥施氮量383kg/hm2;有机肥施氮量150kg/hm2,无机肥施氮量191kg/hm2,研究了日光温室0~200cm土壤中NH+4N和NO-3N的迁移累积。结果表明,不同施肥模式主要影响0~40cm土壤中NH+4N的平均累积量和平均质量比,单施无机肥的相应值大于单施有机肥;不同施肥模式主要影响0~40cm土壤中NO-3N的平均累积量和平均质量比,当施氮量小于383kg/hm2时,相应值从大到小依次为:单施无机肥、单施有机肥、有机肥和无机肥配施,不同施肥模式也影响40~160cm土壤中NO-3N的迁移累积。从地下水污染风险和产量考虑,北京农业种植区日光温室油菜种植可按照有机肥150kg/hm2、无机肥191kg/hm2的施肥模式进行施肥。

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    Over the course of two rape growing cycles, fertilization types and application rates affected plant growth and groundwater pollution from solar vegetable greenhouses in Beijing agricultural region were studied. Seven fertilization patterns were selected, and in each treatment, the NH+4N and NO-3N migration and accumulation in 0~200cm solar greenhouse soil and the affect on rape yield were studied. The results showed that the different fertilization patterns mainly affected the average NH+4N accumulation and content in the 0~40cm soil layer. Average soil NH+4N accumulation and content was larger in the treatment of only chemical fertilizer than that of only organic manure. When N application rate was less than 383kg/hm2, the average soil NO-3N accumulation and content in the 0~40cm soil layer were found to be in the following descending order: use of only chemical fertilizer, use of only organic manure, use of both organic manure and chemical fertilizer. The different fertilization patterns also affected the migration and accumulation of NO-3N in 40~160cm soil. It is concluded that organic manure (N application 150kg/hm2) mixed with chemical fertilizer (191kg/hm2) is the best fertilization pattern for planting rape in solar greenhouses in Beijing agricultural region.

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商放泽,杨培岭,任树梅,王勍,李云开,刘培斌.施肥模式对日光温室土壤铵态氮和硝态氮的影响[J].农业机械学报,2012,43(7):73-78,49.

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  • 在线发布日期: 2012-07-02
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