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- W2364667039 abstract "[Objective] The study aimed to explore the path of improving the fertility in farmland soil in Yanzhong irrigation area,Sichuan.[Method] With 3 crops of rice,wheat,onion as the tested materials,the improvement of different crop rotation ways and the different fertilization ways on farmland fertility was studied.[Result] Applying the organic fertilizer for 3 years could increase the contents of organic matter,effective nitrogen,phosphorus,potassium in soil plough layer obviously.In the wheat-rice crop rotation,applying organic fertilizer could alleviate the absorption pressure of wheat and rice to effective nitrogen and phosphorus in the soil in fertilizer absorption peak stage and enhance the supply of effective nitrogen and phosphorus in the soil in the later growth period of wheat and rice.Turning over the onion stem and leaf increased the organic matter,entire nitrogen,effective phosphorus,phosphorus, potassium in soil on annual by 77.2%,62.5%,1.0%,24.2%,25.5% and 14.7% reap.and turning over the wheat straw increased the organic matter,entire nitrogen,effective phosphorus,phosphorus,potassium in soil on annual average by 88.1%,57.2%,9.4%,23.0%,70.0% and 23.9% resp.[Conclusion] Turning over onion stem and leaf and the wheat straw could enhance the nutrient content in soil plough layer obviously,and the effect of turning over wheat straw was better than that of turning over the onion stem and leaf." @default.
- W2364667039 created "2016-06-24" @default.
- W2364667039 creator A5084811629 @default.
- W2364667039 date "2008-01-01" @default.
- W2364667039 modified "2023-09-26" @default.
- W2364667039 title "Study on Improvement of Soil Fertility in High-Stable Yield Farmland in Yanzhong Irrigation Area in Sichuan Provice" @default.
- W2364667039 hasPublicationYear "2008" @default.
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