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《JOURNAL OF SHANGHAI AGRICULTURAL COLLEGE》 1995-02
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TRANSFORMATION AND DISTRIBUTION OF  ̄(15)N-LABELED RICE STRAW AND INORGANIC NITROGEN FERTILIZER IN HEAD LETTUCE-GREENHOUSE FIELD SYSTEM

Zhou Pisheng; Wang Lide (Dept. of Landscape & Environmental Science, Shanghai Agricultural College,Shanghai 201101; Dept. of Natural Resources & Environmental Science, Nanjing Agricultural University, Naming 210095)  
The pot experiments with 15N-labeled ammonium sulfate and rice straw applied alone,ammonium sulfate plus rice straw applied in combination were carried out. Results showed that the C/N ratio of materials applied,the amount of rice straw were in inverse correlation to mineralization rate and utilizational rate, and in direct correlation to residual rate of rice straw-15N. With increasing of C/N ratio in the materials applied and the amount of rice straw,immobilization rate and residual rate correspondingly increased, but utilizational rate of ammonium sulfate- 15N decreased. The application of rice straw 0. 31%-0. 46% weight of soil could increase the total N of the greenhouse field.
【CateGory Index】: S636.2
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【Co-citations】
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1 WU Ai-lian1,JIAO Xiao-yan2,LI Hong-jian1(1.Institute of Loess Plateau,Shanxi University,Taiyuan 030006,China; 2.Institute of Soil & Fertilizer,Shanxi Academy of Agricultural Sciences,Taiyuan 030006,China);Research Advance and Prospect in Nitrogen Mineralization from Manure[J];Journal of Shanxi Agricultural Sciences;2010-12
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