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通过连续两年的研究得出三江平原水稻产量与施肥量的回归方程,并预测出东农416水稻品种在三江地区产量潜力为60O公斤/亩,该地区以550公斤/亩为目标产量比较适宜;单位化肥增产量随施肥量的增加而降低;尿素、磷酸二铵、硫酸钾亩施用量分别不超过17公斤、7公斤、6公斤为宜;欲获得500公斤/亩以上产量,必须将氮、磷、钾肥配合施用。
Through two years of research, the regression equation of rice yield and fertilizer amount in Sanjiang Plain was obtained, and the yield potential of Dongnong 416 rice varieties in Sanjiang area was predicted to be 60 kg / mu. The yield of 550 kg / ; Unit output of chemical fertilizers decreased with the increase of fertilizers; urea, diammonium phosphate, potassium sulphate applied amount of no more than 17 kg, 7 kg, 6 kg appropriate; to obtain more than 500 kg / acre, nitrogen must be nitrogen , Phosphorus, potassium fertilizer with the application.