| 15N标记羊粪和稻草还田氮素的转化和效应的研究 |
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| 引用本文： | 廖先苓,周卫军,何电源.15N标记羊粪和稻草还田氮素的转化和效应的研究[J].土壤学报,1995,32(3):290-299. |
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| 作者姓名： | 廖先苓 周卫军 何电源 |
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| 作者单位： | 中国科学院长沙农业现代化研究所, 410125;中国科学院长沙农业现代化研究所, 410125;中国科学院长沙农业现代化研究所, 410125 |
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| 基金项目： | * 中国科学院“土壤圈物质循环开放研究实验室”基金 |
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| 摘 要： | 本工作通过田间微区试验，研究了＾１５Ｎ标记羊粪和稻草单独施用或分别与尿素配合施用作为水稻基肥时，肥料氮的命运及共对水稻产量的影响。
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| 关 键 词： | 羊粪 稻草还田 氮15 氮 水稻 产量 |
COMPARISON OF N TRANSFORMATION AND ITS EFFECT ON RICE YIELD BETWEEN DIRECT APPLICATION OF 15N -LABELLED RICE STRAW AND APPLICATION OF GOAT FECES AFTER FEEDING GOAT WITH RICE STRAW |
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| Liao Xianling,Zhou Weijun and He Dianyuan.COMPARISON OF N TRANSFORMATION AND ITS EFFECT ON RICE YIELD BETWEEN DIRECT APPLICATION OF 15N -LABELLED RICE STRAW AND APPLICATION OF GOAT FECES AFTER FEEDING GOAT WITH RICE STRAW[J].Acta Pedologica Sinica,1995,32(3):290-299. |
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| Authors: | Liao Xianling Zhou Weijun and He Dianyuan |
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| Institution: | Changsha Institute of Agricultural Modernization, Academia Sinica, Changsha, 410125;Changsha Institute of Agricultural Modernization, Academia Sinica, Changsha, 410125;Changsha Institute of Agricultural Modernization, Academia Sinica, Changsha, 410125 |
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| Abstract: | Microplot experiment was used in a paddy field to study the fate of nitrogen and its effect on rice yield when 15N-labelled goat feces and rice straw were applied alone or in combination with urea as basic fertilizer. The results showed that 15N recovery from goat feces by rice grain accounted for 7.9% and 9.2%,respectively, being equivalent to 2.2% and 2.6% of 15N in the feed-rice straw respectively. By using rice straw to feed goats and returning the goat feces to the field, 15N recovery by goat body and rice grain was 33.4% and 33.7% respectively, which was higher than 15N recovery from rice straw by rice grain (9.9% and 14.5% respecti-vely) as rice straw was applied directly to the soils. |
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| Keywords: | 15N-labelled goat feces Returning rice straw to soil Nitrogea balance sheep |
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