农业系统中磷肥残效及磷循环研究Ⅲ.投料中磷和氮在饲养-堆腐环中的循环率及有机肥料中养分的利用率

应用生态学报 ›› 1992, Vol. 3 ›› Issue (3): 236-239.

农业系统中磷肥残效及磷循环研究Ⅲ.投料中磷和氮在饲养-堆腐环中的循环率及有机肥料中养分的利用率

殷秀岩, 张璐, 宇万太, 沈善敏

中国科学院沈阳应用生态研究, 沈阳 110015

收稿日期:1992-01-27 出版日期:1992-07-25 发布日期:1992-07-25
基金资助:
国家“七五”科技攻关项目《旱农》研究子课题

Residual effect of phosphorus fertilizer and phosphorus recycling in a farming system Ⅲ. Recycling rate of P and N in feed stuffs and bedding materials through a feeding-composting cycle and recoveries of P and N in organic manure

Yin Xiuyan, Zhang Lu, Yu Wantai, Shen Shanmin

Institute of Applied Ecology, Academia Sinica, Shenyang 110015

Received:1992-01-27 Online:1992-07-25 Published:1992-07-25

摘要/Abstract

摘要： 5年试验结果表明,农产品中N经由饲养-堆腐环的损失率平均为36%,P为25%。在丰产条件下,一农业系统80%收获产品经由饲养-堆腐环可循环回田的养分量约为80kgN/ha,14kgP/ha,相当于这一系统中每年化肥N用量的一半和化肥P用量的全部。有机肥料中N和P的表观利用率随施肥年限延长而有增长趋势,表明有残效迭加效应存在。5年平均,有机肥料中N和P的当季表观利用率分别约为40%和43%。

关键词: 农业系统, P循环, 喂饲-堆腐系统, 有机肥P利用率

Abstract: Afive years experimental results indicate that thee average loss rate of Ncontained in harvested products through a feeding-composting cycle is about 36% and that of Pis about 25%. Under high-yield conditions, the amounts of recycled Nand Pfrom 80% of harvested products and through a feeding-composting cycle in a farming system are about 80kg N/ha and 14kg P/ha respectively, equivalent to half of Nand full of Pfrom fertilizers applied every year to the system.

Key words: Phosphorus cycle, Farming system, Feeding-composting system, Recovery of P in organic manure

殷秀岩, 张璐, 宇万太, 沈善敏. 农业系统中磷肥残效及磷循环研究Ⅲ.投料中磷和氮在饲养-堆腐环中的循环率及有机肥料中养分的利用率[J]. 应用生态学报, 1992, 3(3): 236-239.

Yin Xiuyan, Zhang Lu, Yu Wantai, Shen Shanmin. Residual effect of phosphorus fertilizer and phosphorus recycling in a farming system Ⅲ. Recycling rate of P and N in feed stuffs and bedding materials through a feeding-composting cycle and recoveries of P and N in organic manure[J]. Chinese Journal of Applied Ecology, 1992, 3(3): 236-239.

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