论文部分内容阅读
有机、无机肥料配合施用是现代施肥技术发展的方向。我们于1982至1986年做了五年的生产调查和田间定位试验。结果表明,有机、无机肥料合理配合施用可以提高化肥利用率,提高产量、品质,改善土壤理化性状,具有较高的生态效益和经济效益。1982年对17块麦田进行实地调查,在土质、前茬、品种、播期、播量等因子基本相同时,连续5年或5年以上亩施土粪4~5吨,化肥折纯氮8.5公斤的麦田,小麦单产305.7公斤;而连续5年以上单施化肥折纯氮8.5公斤者,小麦单产180.9公斤。对麦田10~20厘米土层物理性状测定,有机、无机肥料配合施用的麦田土壤结构好,水稳性团粒较单施化肥的麦田平均高出3.4%、土壤
Organic and inorganic fertilizers with the application of modern fertilization technology is the direction of development. We conducted five years of production surveys and field trials between 1982 and 1986. The results showed that the organic and inorganic fertilizers could increase the utilization of chemical fertilizers, increase the yield and quality, and improve the physical and chemical properties of the soil with reasonable ecological benefits and economic benefits. In 1982, a field survey was conducted on 17 wheat fields. When soil quality, previous crop, variety, sowing date and sowing rate were basically the same, soil organic manure was continuously applied for 5 to 5 years or above for 5 years or more, Kg of wheat field, wheat yield 305.7 kilograms; and for more than 5 consecutive years of fertilizer only pure nitrogen nitrogen 8.5 kg, wheat yield of 180.9 kilograms. The results showed that soil organic matter and inorganic fertilizers had good soil structure, and the water stable aggregates were 3.4% higher than the wheat fields with chemical fertilizers on average. Soil