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在辽宁省辽中县盐化草甸型水稻土上设置田间定位试验。经5年观测结果表明,施用肥料特别是有机无机肥配合施用,兼有提高土壤肥力水平和加强作物营养的双重功效,水稻产量由不施肥处理的 3 495kg·hm-2提高到 7 350kg·hm-2。在配施组合中,以施猪圈粪 1.5t.hm-2,化肥 N 75~ 90kg·hm-2, P2O5 30~ 45kg·hm-2为最佳。
Field Positioning Experiment on Saline Meadow Paddy Soil in Liaoning Province. The results of five years showed that the application of fertilizers, especially organic and inorganic fertilizers, combined with the double effect of increasing soil fertility and crop nutrition, the yield of rice increased from 3 495kg · hm-2 without fertilization to 7 350kg · hm -2. In the combination of facilities, pigsty dung 1.5t. hm-2, 75-90 kg · hm-2 of fertilizer N and 30-45 kg · hm-2 of P2O5.