| 西吡对抑制硝化过程和其它微生物活性的影响 |
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| 引用本文： | 李良谟,臧双,周秀如,潘映华.西吡对抑制硝化过程和其它微生物活性的影响[J].土壤学报,1981,18(1):58-70. |
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| 作者姓名： | 李良谟 臧双 周秀如 潘映华 |
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| 作者单位： | 中国科学院南京土壤研究所;中国科学院南京土壤研究所;中国科学院南京土壤研究所;中国科学院南京土壤研究所 |
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| 摘 要： | 作物对氮肥的利用率很低3,4],水稻对氮肥的利用率又低于旱作.稻田中氮素平衡的资料指出,水稻对氮肥的利用率在20-60%之间,平均35%,土壤中残留3-21%,平均12%,损失31-61%,平均50%.
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EFFECT OF CP ON THE NITRIFICATION AND MICROBIAL ACTIVITY |
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| Li Liang-mu,Zhang Shuang,Zhou Xiu-ru and Pan Ying-hua.EFFECT OF CP ON THE NITRIFICATION AND MICROBIAL ACTIVITY[J].Acta Pedologica Sinica,1981,18(1):58-70. |
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| Authors: | Li Liang-mu Zhang Shuang Zhou Xiu-ru and Pan Ying-hua |
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| Institution: | Institute of Soil Science, Academia Sinica, Nanjing;Institute of Soil Science, Academia Sinica, Nanjing;Institute of Soil Science, Academia Sinica, Nanjing;Institute of Soil Science, Academia Sinica, Nanjing |
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| Abstract: | Experiment has showed that the effect of CP on the inhibition of nitrification is significant.However,the effect of CP on the decrease of N loss is varied with soil properties.The beneficial role of CP for retaining nitrogn in ammonium form in acid paddy soil may not be attained in calcareous soil,since the volatilization of NH4-H is usually enhanced in the soil.In the present experiment,the uptake of fertilizer nitrogen by rice plant through the application of CP is increased alightly,but no response is found in crop yield.Field experiments have also proved that the good effect of CP on the rice yield is found on infertile soils on which only a small quantity of nitrogen fertilizer or manures is applied,or even on calcareous soil. |
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