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- W2376661050 abstract "Full straw incorporation in every season or every other season by machine may be main method of the straw incorporation in rice-wheat rotation system.In order to provide the basis for this method of straw incorporation,a study of two kind of straw incorporation with different rate of fertilizer-N application was investigated in effects of soil nutrient retention and supply capacity.A field experiment under different amount of fertilizer-N application with single-season or double-season straw returned in rice-wheat rotation system annually was carried to explore the effects of straw and fertilizer-N on dynamic of soil organic matter (SOM),total nitrogen (TN),alkaline-hydrolyzed nitrogen (AN),available phosphorus (AP),potassium (AK),ammonium nitrogen (NH4-N) and nitrate (NO3-N).The result show: Compared with the control (CK),the content of SOM,TN,AN,AP,AK under the single-season straw incorporated wasincreased significantly with rate of fertilizer-N application,with 3.7%~11.2%,2.2%~16.2%,6.4%~ 22.8%,25.7%~106.5%,30.2%~58.7%,respectively,and NH4-N,NO3-N content was reduced with 1.30,1.32 mg/kg,respectively.Under the same amount of nitrogen fertilizer (N1～N3),the content of SOM,AP,AK in soil with the double-season straw incorporation was increased by 1 000~2 400,7.9~14.5 and 11.0~15.0 mg/kg than the single-season straw incorporation,and the content of NH4-N,NO3-N in soil decreased by 6.1%～10.0%,9.9%~11.3%,14.7%~22.8% respectively,and the soil TN has no significant effect.The interaction of straw and nitrogen had a significant influence on soil SOM,TN.The content of SOM,TN,AN,AP,AK,NH4-N,NO3-N was increased with the amount of fertilizer-N application .Straw incorporation significantly increased the content of SOM,AN,AP,AK and reduce the NH4-N,NO3-N in soil.The content of AN,NH4-N,NO3-N in soil was significantly negatively correlated to the amount of straw incorporated.The rate of straw incorporated and nitrogen fertilizer has a significant interaction on soil SOM,TN." @default.
- W2376661050 created "2016-06-24" @default.
- W2376661050 creator A5068325469 @default.
- W2376661050 date "2010-01-01" @default.
- W2376661050 modified "2023-09-28" @default.
- W2376661050 title "Effects of Different Nitrogen Fertilizer Rate with Continuous Full Amount of Straw Incorporated on Paddy Soil Nutrients" @default.
- W2376661050 hasPublicationYear "2010" @default.
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