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夏播大豆是我县的主要秋粮作物,近两年发展较快,由常年的3万亩发展到现在的5.5万亩。在大豆生产中,我们主要推广了五项技术措施,获得了良好的效果。一、抢时早播。抢时早播可避免汛期发生芽涝,能充分利用光热资源,提高光能利用率,增加粒重和产量。据三年试验和示范,6月20日播种的亩产201.5公斤,比6月24日播种的增产3公斤,比6月28日和7月2日播种的分别增产8.7公斤和12.5公斤。二、微肥拌种。大豆对钼肥敏感,用钼肥拌种简单易行,效果良好。方法是每公斤种子用2克钼肥,先用少量水溶解肥料,然后均匀拌于种子上。据考查,钼肥拌种单株荚数比对照多3个,百粒重增加0.3克,亩增产13公斤。
Sowing summer sow is my county’s main autumn crops, rapid development in recent years, from the perennial 30000 acres of development to the present 55000 acres. In soybean production, we mainly promoted five technical measures and achieved good results. First, grab the early broadcast. Seize the early broadcast can prevent floods flood buds, can make full use of light and heat resources, improve light utilization, increase grain weight and yield. According to the three-year trial and demonstration, 201.5 kg of mu was sown on 20 June, 3 kg more than that sown on 24 June, and 8.7 kg and 12.5 kg more than those sown on 28 June and 2 July respectively. Second, fertilizer dressing. Soybean sensitive to molybdenum, molybdenum fertilizer dressing easy, the effect is good. Method is to use 2 grams of molybdenum fertilizer per kilogram of seeds, first with a small amount of water to dissolve the fertilizer, and then evenly mixed in the seeds. According to the test, molybdenum fertilizer seed pods per plant more than the control 3, 100 weight gain 0.3 grams, mu yield 13 kg.