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综合评价中国南方双季稻地区化肥有机肥配合施用下水稻产量及土壤肥力效应。在江西双季稻区进行连续25年的田间定位试验,比较不施肥、施用化肥(氮磷钾)、等养分条件下70%化肥配合施用30%有机肥、50%化肥配合施用50%有机肥、30%化肥配合施用70%有机肥的水稻产量和土壤肥力变化。结果表明,有机无机肥配施,早晚稻平均产量比不施肥增产幅度为65.4%～71.5%,比施化肥增产幅度为3.9%～7.8%,其中,以30%化肥配合施用70%有机肥处理产量最高,年产量达12346.90千
Comprehensive Evaluation on Yield and Soil Fertility of Rice under Compound Fertilizer Application with Double Fertilizers in Southern China. A field experiment was conducted in a double cropping paddy for 25 consecutive years in Jiangxi Province. Fertilizers (NPK) were applied without fertilizers and 70% fertilizer with 30% organic fertilizer under other nutrient conditions. 50% fertilizer with 50% organic fertilizer , 30% fertilizer application of 70% organic fertilizer on rice yield and soil fertility changes. The results showed that with the combination of organic and inorganic fertilizers, the average yields of early and late rice were 65.4% -71.5% higher than those without fertilization and 3.9% -7.8% higher than that of chemical fertilizers. Among them, 30% chemical fertilizer combined with 70% organic fertilizer The highest yield, annual output of 12346.90 thousand