| 稻田土壤－作物－家畜系统中氮的循环研究 |
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| 引用本文： | 何电源,廖先苓.稻田土壤－作物－家畜系统中氮的循环研究[J].生态学报,1994,14(2):113-120. |
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| 作者姓名： | 何电源 廖先苓 |
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| 作者单位： | 中国科学院长沙农业现代化研究所 |
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| 摘 要： | 本文用Ｎ＾１５标记水稻和绿肥研究了稻田土壤－作物－家畜系统中氮的循环。Ｎ＾１５标记稻草喂羊，羊体回收饲料稻草Ｎ３１．１６％，羊粪２８．２６％，羊尿５．７２％，总回收６５．１４％，损失３４．８６％。将羊粪尿单施，稻谷回收饲料稻草Ｎ３．１９％，水稻全株回收４．８２％，水稻全株回收４．８２％，土壤残留１９．００％，损失１０．１４％。故羊体，水稻及土壤残留共回收饲料稻草Ｎ５４．９８％。将羊粪与尿素配施，则
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| 关 键 词： | 氮 循环 稻田土壤 作物 家畜 生态 |
| 收稿时间： | 1993/1/15 0:00:00 |
| 修稿时间： | 1993/11/6 0:00:00 |
CYCLING OF NITROGEN IN THE PADOY SOIL-CROPS-DOMESTIC ANIMALS SYSTEM |
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| He Dianyuan.CYCLING OF NITROGEN IN THE PADOY SOIL-CROPS-DOMESTIC ANIMALS SYSTEM[J].Acta Ecologica Sinica,1994,14(2):113-120. |
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| Authors: | He Dianyuan |
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| Institution: | Changsha Institute of Agricultaral Modenization; Academia Sinica; Changsha; Hunan 410125 |
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| Abstract: | This paper deals with the use of N15-labelled rice straw and green manure to study the cycle of N in the crops-domestic animal-paddy soil system.When a N15-labelled rice straw was used to feed goats. the total N recovery was 65.14%, including 31. 16%in bodies,28. 26%in feces and 5.72% in goat urine.Then the goat feces and urine were retuned topaddy field and 4.82% N15 was recovered in whole rice plants ,inciuding 3. 19%in ricegrain,19.0% of N remained in soil ,and 10.14%of N was lost.In the two pro... |
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| Keywords: | N15 nitrogen cycle paddy soil-crops-domestic animals system |
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