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施肥模式對(duì)日光溫室土壤銨態(tài)氮和硝態(tài)氮的影響
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北京市科技計(jì)劃課題資助項(xiàng)目(D07050601510703—3)


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

    通過(guò)種植兩茬油菜,,設(shè)置7種施肥模式:有機(jī)肥施氮量600kg/hm2;有機(jī)肥施氮量300kg/hm2;無(wú)機(jī)肥施氮量767kg/hm2,;無(wú)機(jī)肥施氮量383kg/hm2,;有機(jī)肥施氮量450kg/hm2,,無(wú)機(jī)肥施氮量153kg/hm2,;有機(jī)肥施氮量300kg/hm2,,無(wú)機(jī)肥施氮量383kg/hm2,;有機(jī)肥施氮量150kg/hm2,,無(wú)機(jī)肥施氮量191kg/hm2,研究了日光溫室0~200cm土壤中NH+4N和NO-3N的遷移累積,。結(jié)果表明,,不同施肥模式主要影響0~40cm土壤中NH+4N的平均累積量和平均質(zhì)量比,,單施無(wú)機(jī)肥的相應(yīng)值大于單施有機(jī)肥;不同施肥模式主要影響0~40cm土壤中NO-3N的平均累積量和平均質(zhì)量比,,當(dāng)施氮量小于383kg/hm2時(shí),,相應(yīng)值從大到小依次為:?jiǎn)问o(wú)機(jī)肥、單施有機(jī)肥,、有機(jī)肥和無(wú)機(jī)肥配施,,不同施肥模式也影響40~160cm土壤中NO-3N的遷移累積。從地下水污染風(fēng)險(xiǎn)和產(chǎn)量考慮,,北京農(nóng)業(yè)種植區(qū)日光溫室油菜種植可按照有機(jī)肥150kg/hm2,、無(wú)機(jī)肥191kg/hm2的施肥模式進(jìn)行施肥。

    Abstract:

    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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商放澤,楊培嶺,任樹梅,王勍,李云開,劉培斌.施肥模式對(duì)日光溫室土壤銨態(tài)氮和硝態(tài)氮的影響[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(7):73-78,49. Shang Fangze, Yang Peiling, Ren Shumei, Wang Qing, Li Yunkai, Liu Peibin. Effects of Fertilization Patterns on NH+4N and NO-3N in Solar Greenhouse Soils[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(7):73-78,49.

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  • 在線發(fā)布日期: 2012-07-02
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