【摘要】 1991～1993年的定位分析表明,双季稻吨粮田与一般高产田比较,成本下降1.55%,产品亩产量与能产量则大幅度增加,因而最终表现为经济效益高,能量效益高和社会效益高.亩产吨粮,需投入成本429.50元（油稻稻）或386.34元（肥稻稻）,投入能量4824.40 MJ（油稻稻）或4594.87MJ（肥稻稻）,投入纯 N 30kg,P₂O₅ 10kg,K₂O 20kg 左右.目前,吨粮田的投入水平仍处于“报酬递增期”.在江西赣抚平原及其类似条件的高、中产地区,已具备实现亩产吨粮的生产条件.更多还原

【Abstract】 The results of three consecutive years’experiments（1991-1993）showed that the mid-dle and high yield fields in Gangfu Plain area in Jiangxi Province have the potentialities ofproducing one ton grain per mu annually.To realize the potentialities,thirty kilograms ofpure nitrogen,ten kilograms of phosphorus（P₂O₅）and twenty kilograms of potassium（K₂O）should be input.The average capital cost and energy investment were 429.50 yuanand 4824.40 MJ per mu for rape-rice-rice triple cropping and 386.34 yuan and 4594.87 MJfor milk vetch-rice-rice.Compared with high yield fields,the one-ton-food-yield fieldsare advanced in economic,energy and social benefits.Under the condition of this experient,the more input,the more output.So more investments of capital,energy and fertilizers aresuggested.更多还原