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绿肥在我省浅山地区已逐步推广。这类地区干旱缺水,地广人稀。农作物以小麦为主,一年一熟,一般在3、4月份抢墒播种粮食作物,由于农事作业非常集中,所以历年绿肥作物都推迟到4月底至5月上旬播种,这不仅不利于保苗,也缩短了生长季节,使压青时产草量不高,一定程度上降低了绿肥的应用价值。针对生产上存在的问题,我们从调节农活,充分利用山区的自然条件着眼,在1973年绿肥冬、春周期播种试验的基础上,1976年又与乐都县蒲台公社赵家坪和寺沟脑两大队农科队一起进行了绿肥冬播试验,现将试验结果整理如下:
Green manure in the shallow mountain region in our province has been gradually promoted. Drought and drought in these areas are widespread and sparsely populated. Crops mainly wheat, cooked a year, usually in March and April seized soil moisture crop planting crops, agricultural operations are very concentrated, so the calendar year green manure crops are postponed until the end of April to early May planting, which is not only not conducive to seedlings, Also shorten the growing season, so that when the pressure is not high yield grass, to a certain extent, reduce the green manure application value. In view of the problems existing in production, we focus on regulating farm work and making full use of the natural conditions of mountainous areas. Based on the experiment of sowing green winter and spring in 1973, in 1976, Brigade Agricultural team conducted a green manure winter broadcast test, the test results are now organized as follows: