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Experiences and Research Perspectives on Sustainable Development of Rice-Wheat Cropping Systems in the Chengdu Plain, China
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来源:AGRICULTURAL SCIENCES IN CHINA年份:2010关键词: rice-wheat cropping system principle strategies rotation sustainable soil productivity simplification cultivation techniques Chengdu Plain
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Nitrogen input, N-15 balance and mineral N dynamics in a rice-wheat rotation in southwest China
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来源:NUTRIENT CYCLING IN AGROECOSYSTEMS年份:2007关键词: alternate soil wetting and drying integrated nutrient management N-15 labelled urea nitrogen budget nitrogen cycling rice-wheat cropping system
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Crop yields, internal nutrient efficiency, and changes in soil properties in rice-wheat rotations under non-flooded mulching cultivation
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来源:PLANT AND SOIL年份:2005关键词: internal nutrient efficiency nutrient balance rice-wheat cropping system soil fertility straw management water saving
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