Effect of Tillage Systems on Soil Particulate Organic Nitrogen in a Purple Paddy Soil
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LIU Zhi-xiang1,HAO Qing-ju1,2,JIANG Chang-sheng1,ZHU Tao1(1.Key Laboratory of Eco-environments in Three Gorges Reservoir Region(Ministry of Education),College of Resources and Environment,Southwest University,Chongqing 400715,2.Chongqing Engineering Research Center for Agricultural Non-point Source Pollution Control in the Three Gorges Reservoir Area,Chongqing 400716)

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    Abstract:

    Soil particulate organic nitrogen as the instable part of soil organic nitrogen,playing an important role in the nitrogen balance,and is of great significance in the growth of plant and the increase of crop yield.In this paper four tillage treatments including conventional tillage with rice only system(DP),conventional tillage with rotation of rice and rape system(SH),no-till and ridge culture with rotation of rice and rape system(LM),and tillage and ridge culture with rotation of rice and rape system(LF) w...

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  • Online: October 25,2012
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