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- W2387517025 abstract "【Objective】The objective of this study was to understand the effects of no-tillage and rice-seedling casting with rice straw returning on nitrogen,phosphorus and potassium of paddy soil profile.【Method】Contents of nitrogen,phosphorus and potassium of paddy soil profile soil of conventional tillage of rice-seedling casting and no-tillage of rice-seedling casting experiments that lasted two and seven years were investigated.【Result】Contents of total nitrogen,total phosphorus,alkaline-hydrolysable nitrogen and rapidly available phosphorus in 0-4(5) cm soil layer of no-tillage treatments were higher than those of conventional tillage.Contents of total potassium in 0-4(5) cm soil layer of no-tillage with rice straw returning treatment were significantly higher than those of common conventional tillage.Contents of rapidly available potassium in 0-4(5) cm soil layer of no-tillage with rice straw returning treatment were lower than that of conventional tillage with rice straw returning,but significantly higher than that of common conventional tillage.Contents of total nitrogen,total phosphorus,total potassium,alkaline-hydrolysable nitrogen and rapidly available phosphorus in 5-20 cm soil layer of no-tillage treatments were lower than those of conventional tillage.Content of rapidly available potassium in Aa layer(cultivation layer) of common no-tillage treatment was lower than those of conventional tillage.Contents of alkaline-hydrolysable nitrogen and rapidly available potassium in Ap layer(plow pan),W layer(waterlogged layer) and C layer(parent material layer) were higher than those of conventional tillage.【Conclusion】The effects of no-tillage of rice-seedling casting with of rice straw returning on coordinate soil nitrogen,phosphorus and potassium are superior to that of common no-tillage of rice-seedling casting,and no-tillage of rice-seedling casting with rice straw returning is advantageous to the improvement and development of soil fertility.No-tillage of rice-seedling casting with rice straw returning is a development direction of paddy field no-tillage." @default.
- W2387517025 created "2016-06-24" @default.
- W2387517025 creator A5046813518 @default.
- W2387517025 date "2012-01-01" @default.
- W2387517025 modified "2023-09-23" @default.
- W2387517025 title "Effects of No-Tillage and Rice-Seedling Casting with Rice Straw Returning on Content of Nitrogen,Phosphorus and Potassium of Soil Profiles" @default.
- W2387517025 hasPublicationYear "2012" @default.
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