去年宁县太昌公社长庆桥大队和东风六队麦收后复种黄豆效果很好。长庆桥大队在川水地复种晋豆一号45亩,亩产最高达到206.7斤,平均152.6斤。地处塬面的东风六队,复种晋豆一号、内蒙早熟、黑河三号各半亩,亩产分别为190斤、144斤和120斤。为我县川、塬地区提供了麦→豆→麦的轮作经验。这种轮作方式最大限度地利用了生长季节,使我县由一年一熟,变为一年两熟,从而提高了土地利用率。除此之外,复种黄豆还有以下三点好处: 1.种豆肥地。豆科作物能与根瘤菌共生。根瘤菌可以固定空气中的氮素肥田;同时根瘤菌还向土壤分泌有机酸,把一些土壤中难溶性营养元素变成可溶性,便于作物吸收利用。一亩 Changning County, Changchun County Bridge last year, Changqing Bridge Brigade and the team received six wheat hybrid crop beans well. Changqing Bridge brigade in Sichuan Kawachi one compound 45 acres of Jin Dou, the highest yield of 206.7 kg per mu, an average of 152.6 kg. Located in the plateau of the Dongfeng six teams, re-planting Jin Dou One, Inner Mongolia precocious Heibei on the 3rd and a half mu, mu yield was 190 pounds, 144 pounds and 120 pounds. For my county Sichuan, Plateau region provided wheat → beans → wheat rotation experience. This mode of rotation maximizes the use of the growing season, making my county from one ripening a year to two ripening a year, thus increasing land use efficiency. In addition, there are three benefits of multiple cropping of soybeans: 1. Bean seedling. Leguminous crops can coexist with rhizobia. Rhizobium can fix the nitrogen fertilizer in the air; rhizobia also secrete organic acids into the soil, make some insoluble nutrients in the soil become soluble, easy to absorb and use of crops. One acre