生态学杂志 ›› 1987, Vol. ›› Issue (6): 19-21,41.
• 研究报告 • 上一篇 下一篇
刘作新, 沈善敏
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Liu Zuoxin, Shen Shanmin
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关键词: 城市污泥, 资源与环境, 城市和农业可持续发展
Abstract: Maize,sorghum and millet were used as reference crops in quantitatively estimating sym-biotic nitrogen fixation by soybean.With no nitrogen fertilizer application,the amounts ofnitrogen taken up by the three reference crops were closely similar,indicating that the nitro-gen taken up from soil by crops seemed to be controlled by the soil nitrogen release rate whi-ch was not related to the crop types.According to the difference of total nitrogen betweensoybean and reference crops,the nitrogen fixed by soybean was estimated to be 131 to 155kgN per hectare in 1983 and 143 to 163 kg N in 1985,which accounted for 50—55% of thetotal nitrogen in the harvest of soybean.
Key words: Municipal sludge, Resource and environment, Urban and agricultural sustainable development
刘作新, 沈善敏. 用禾本科作物作参比估测大豆共生固氮量[J]. 生态学杂志, 1987, (6): 19-21,41.
Liu Zuoxin, Shen Shanmin. Quantitative Estimation of Symbiotic Nitrogen Fixation of Soybean with Reference to Graminaceous Crops[J]. cje, 1987, (6): 19-21,41.
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https://www.cje.net.cn/CN/Y1987/V/I6/19