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Keyword [optimized fertilization rates]
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1. Study On Soil Nutrient Limiting Factors And Optimized Fertilization Rates For Winter Wheat In Main Agricultural Regions Of Central Tibet
2. Variations Of Nitrogen,Phosphorus,Potassium Accumulations In Soils,Leaves And Fruits,and Yields And Qualities In A Pear Plantation In Yongchuan,Chongqing
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