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我区种植黄豆的历史悠久,大都采取在二段和三段轮作田的小麦或胡麻中套种的方式,随着灌区小麦单产的不断提高,小麦的密度加大,致使黄豆在麦收前受小麦植株的郁蔽,很难正常生长发育。加之,耕作管理粗放,黄藤子等杂草危害严重,产量很低,种植面积逐年缩小,总产渐趋下降。所以,发展我区的黄豆生产已成为刻不容缓的课题之一。在批林批孔运动的推动下,我们去年开展了复种小黄豆试验。试验分两部分进行,一为小面积试种,在莞豆收获后,于7月11日(相当于早熟小麦收后)复种小黄豆5亩。二为播种期试验,引进7个小黄豆品种,分期播种,希望从中找出适合银川和银南地区复种的小黄豆品种及保证各品种霜前成熟的适宜播种期。
Soybean cultivation in our region has a long history, mostly in the second and third crop rotation of wheat or flax intercropping approach, with the continuous improvement of yield of wheat in irrigated area, increasing the density of wheat, resulting in soybeans before the wheat received by the wheat plant Yu Yu, it is difficult to normal growth and development. In addition, extensive farming management, such as weeds rattan serious harm, low yield, acreage decreased year by year, total output gradually declining. Therefore, the development of soybean production in our region has become an urgent task. With the promotion of the Prayers and Blows Campaigns, we carried out the Multiple Crops Soybean Experiment last year. The experiment was divided into two parts, one for a small area of trial planting, after the harvest of Cantaloupe, on July 11 (equivalent to early-maturing wheat) after re-planting 5 acres of small soybeans. The second is the sowing date experiment. Seven small soybean varieties were introduced and sown in stages. The hope was to find out the small soybean varieties suitable for multiple cropping in Yinchuan and Yinnan and the proper sowing time to ensure the maturity of each variety.