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水稻减氮高产栽培技术研究

Crop Research(2006)

Cited 5|Views13
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Abstract
2005年在洞庭湖区采用4种不同施氮量水平并以不同基追肥比例进行了水稻减氮施肥试验.结果表明,在基追肥比例4∶6条件下,中等施氮量165 kg/hm2的产量最高为6 650 kg/hm2,而以135 kg/hm2施氮量处理的产投比最高,达15.70.因此在水稻生产中氮素施用量以135~165 kg/hm2,基追肥比以4∶6可以获得较高的产投比,达到减氮高产的目的.
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Key words
Fertilization,Rice,Nitrogen,Cultivation
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