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目前矮生菜豆(地豆)繁种多采用单作式。大面积地豆繁种单作,因其产量徘徊不前,加之当前粮食作物价格上涨,而地豆种价格受市场调节,单作地豆效益优势已不明显。如何挖潜自然优势条件,增加单位面积效益,进一步为社会提供质优价廉的豆种,是我们亟待解决的问题。为此,我们从1993年起,进行了不同比例的地豆——玉米间作试验,从中筛选出了一种较为理想的间作方式。1994年采用此方式示范面积153亩,平均每亩繁地豆248公斤,生产商品玉米827公斤。取得了较好的效果。
At present, dwarf lettuce (to beans) and more use of single-species variety. Large areas of beans for single species, because of its stagnant output, coupled with the current price of food crops, while the price of beans by the market regulation, the effectiveness of a single for the benefits of beans has been obvious. How to tap the potential advantages of natural conditions, increase unit area efficiency, to further provide the community with quality and cheap beans, is that we need to be solved. To this end, we started from 1993, different proportions of beans - corn intercropping experiment, from which a better screening for an intercropping approach. In 1994, a demonstration area of 153 mu was used for this mode, with an average of 248 kg per mu of earth beans and 827 kg of corn. Achieved good results.