| 秸秆生物有机肥的施用对土壤供氮能力的影响 |
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| 引用本文： | 张亚丽,张娟,沈其荣,王金川.秸秆生物有机肥的施用对土壤供氮能力的影响[J].应用生态学报,2002,13(12):1575-1578. |
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| 作者姓名： | 张亚丽 张娟 沈其荣 王金川 |
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| 作者单位： | 南京农业大学资环学院,南京,210095 |
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| 基金项目： | 国家自然科学基金重点项目 (3 983 0 2 2 0 )，国家科技部 863资助项目 (2 0 0 1AA2 460 81) |
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| 摘 要： | 通过盆栽试验研究了秸秆生物有机肥的施用对土壤供氮能力的影响。结果表明，与原始秸秆相比，秸秆生物有以与尿素配合施用能明显提高土壤生物量碳，氮的含量，增幅约为3－4倍；土壤微生物量氮与土壤的供氮能力关系非常密切，前期发生强烈的微生物增殖过程，则中后期必会发生无机氮释放过程，这对作物的生长发育极为重要。同时提高了肥料氮利用率，揭示了秸秆生物有机肥配施无机氮肥改善土壤供氮能力的机理。
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| 关 键 词： | 秸秆生物有机肥 施用 土壤供氮能力 影响 土壤生物量氮 肥料氮利用率 |
| 文章编号： | 1001-9332(2002)12-1575-04 |
| 修稿时间： | 2001年11月7日 |
Effect of combined application of bioorganic manure and inorganic nitrogen fertilizer on soil nitrogen supplying characteristics |
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| ZHANG Yali,ZHANG Juan,SHEN Qirong,WANG Jinchuang.Effect of combined application of bioorganic manure and inorganic nitrogen fertilizer on soil nitrogen supplying characteristics[J].Chinese Journal of Applied Ecology,2002,13(12):1575-1578. |
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| Authors: | ZHANG Yali ZHANG Juan SHEN Qirong WANG Jinchuang |
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| Institution: | College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095. yalizh@njau.edu.cn |
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| Abstract: | Pot experiment was carried out to study the effect of application bioorganic manure on soil nitrogen supplying characteristics. Compared with the application of raw rice straw, a combined application of bio-organic manure and inorganic nitrogen fertilizer could boost the content of microbial biomass carbon and nitrogen, and the increased percentage could be 300-400%. A strong immobilization of nitrogen by microorganisms was always followed by a net N mineralization, which was mostly favorable for the growth and development of plant, and improved the use efficiency of nitrogen fertilizer. |
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| Keywords: | Rice straw Bioorganic manure Soil biomass N Use efficiency of fertilizer nitrogen |
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