摘要
德昌县旱地粮菜四熟模式是一年生产一季玉米和三季蔬菜。该模式可充分利用安宁河中下游丰富的温光资源,一年内亩产粮食627.5kg,蔬菜总计11935kg,经济收入2430.4元。其光能利用率达3.864%,能量产投比2.15,是适合城郊区旱地种植的一种较好模式。进一步增施磷钾肥是本模式获得更多农产品、提高资源利用率、维持和培肥土壤的重要措施。
The planting model of four grain-vegetable crops in arid land at Dechang county,Sichuan province, included a season maize and three season vegetables.The model could better utilize the temperature and solar resources in Arming River Basin,and obtain a stable maize yield around 620kg/mu·a and vegetable yield 1193kg/mu·a.The economic benefits of three seasons vegetables was 2430 yuan/mu·a.The efficiency of light energy utilization of the model is 3.864%,and the rate between the energy of products and input is 2.15%.These results indicated the model was fit in with the needs of the arid land in the town nearby.The more adequate amount of phosphate and potassium would be applicated in order to obstain more products,in- crease the efficiency of resource utilization and maintain soil ferility.
关键词
粮菜四熟制
旱地
效益
种植模式
model of four grain-vegetable crops
arid land
Anning River Basin
energy
benefit
