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Keyword [N. and P. loss]
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1. Study On Soil & Water And N & P Losses And Control Technology In Bench-terrace Area Of Dianchi Watershed
2. Study Of Soil Erosion And N And P Loss Of Purple Soil Under Different Land Uses
3. Effects Of Different Fertilization Level On N And P Losses On Sloping Farmland Of Purple Soil
4. Study On The Environmental Risk Of Nitrogen And Phosphorus And Its Control Measures In The Concentrated Planting Region Of Pomelo
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