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一 陕西绿肥发展概况 我省种植绿肥历史虽久,但近百年来在生产上应用不多,解放前后,除陕南稻区有部分光叶苕子外,关中、陕南很少见到。为了恢复土壤肥力,提高作物单位面积产量,我所于1953年开始了关中麦、棉绿肥的研究。与此同时,调查总结群众夏播绿肥经验应用于生产。经过试验、示范和推广,1964年全省绿肥播种面积已达95万亩,1965年计划达到180万亩,今后几年内将有一个较大幅度的增长。
A green manure development in Shaanxi Province Although the history of planting green manure for a long time in our province, it has not been widely used in production for nearly a hundred years. Before and after the liberation, except for some light-leaf prickly rice in southern Shaanxi, Guanzhong and Southern Shaanxi seldom met. In 1953, I started the research on Guanzhong wheat and cotton green manure in order to restore soil fertility and increase crop yield per unit area. In the meantime, the survey summed up the masses summer sowing green manure experience applied to the production. After tests, demonstrations and promotion, the planting area of green manure in the province reached 95 million mu in 1964 and 180 million mu in 1965, with a substantial growth in the next few years.