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大豆生产在调整农业结构、科学轮作、食物构成和商品经济中的应有地位正日益被人们所重视。但当前在春大豆生产中的一个薄弱环节是由于种子质量差而导致缺苗严重影响单产的提高,特别在新区尤为突出。据调查,目前,春大豆出苗率普遍低于70％,个别田段甚至低于50％,且出苗慢,除草补苗花工大,生长参差不齐。为解决这一问题,我所近年来采用春大豆倒种的种子用于春播,结果一般发芽率可达95％以上,对早春低温阴雨抗御力增强,田间出苗快而齐,能一次播种达到全苗,苗势壮旺,省种、省工、丰产的目的。据田间观察,倒种的种子比夏收种子出
Soybean production is playing a more and more important role in regulating the structure of agriculture, scientific rotation, food composition and commodity economy. However, a weak link in the production of spring soybeans at present is the lack of seeds that seriously affect the improvement of yield due to poor seed quality, especially in the new area. According to the survey, at present, the emergence rate of spring soybeans is generally lower than 70%, individual fields even less than 50%, and the emergence of slow, herbicides and seedlings large, uneven growth. In order to solve this problem, in recent years, I have used seeds of spring soybean sown seeds for spring sowing. As a result, the germination rate can reach more than 95% in general. In the early spring, the resistance to low temperature and rainy days is enhanced. Miao, vigorous growth, provincial species, provincial workers, the purpose of high yield. According to the field observation, seed sown than summer harvest seed