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1987年在镇远县江古地区422.88亩望天田进行了旱地分带轮作多熟制试验。结果,总产粮、油、豆13.47万公斤,平均亩产318.58公斤。每亩年产量比上年增长180.69％,产值增长169％。试验说明,在干旱地区,对望天田实行水改旱分带轮作多熟制,不仅改变了等天降雨打田栽秧的被动局面,通过各种作物的间作套种,变一年一熟为一年多熟,充分挖掘了望天田的生产潜力,大幅度提高了产量,是一项值得推广的避灾稳产增收措施。
In 1987, Zhenjiang County, Zhenyuan County, 422.88 acres of Wang Tian Tian conducted multi-cooked trials of dry-zone split-wheel. As a result, the total output of grain, oil and beans was 134,700 kg, with an average yield of 318.58 kg per mu. The annual output per mu has increased by 180.69% over the previous year and the output value has increased by 169%. Tests show that in arid areas, the implementation of water changes in Wang Tian Tian Duanzhe more for the cooked, not only changed the isochronism rain fall field transplanting the passive situation, through intercropping intercropping of crops, one year a year for a year Multi-cooked, fully tap the production potential of Wang Tian Tian, a substantial increase in production is a worthy of promotion of disaster prevention and stability and income measures.