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近年,关中灌区玉米间套大豆面积在百万亩左右,约占大豆面积的50％以上,间套已成为该区发展大豆生产、扩大养地作物的重要途径。虽然各地涌现出了不少高产典型,但就全区来看,产量低,经济效益不高。一般玉米亩产400—600斤,大豆亩产仅30—40斤,有些地方甚至无收。如何提高玉米地间套大豆的经济效益,成为农业生产上一个急待解决的问题。
In recent years, Guanzhong Irrigating Corn Intercropped Soybean area is about one million mu, accounting for about 50% of the soybean area. The intercropping has become an important way to develop soybean production and expand the rangeland-growing crops in this area. Although many high-yield typicals have emerged around the region, the output is low and the economic benefits are not high in terms of the region. General corn per mu 400-600 pounds, soybean yields only 30-40 pounds, in some places or even confiscated. How to improve the economic benefit of soybean in corn field has become an urgent problem to be solved in agricultural production.