1987年,海城市耿庄镇大莫村宁家坟王振家等20户农民种植的53.1亩连片清种大豆,经省、市、县部门联合验收,又经农牧渔业部组织省内大豆专家验收,核定平均亩产达261.5公斤,获得辽宁省农作物高产竞赛一等奖。这块大豆田所用的品种为辽豆3号,种植地块属黄壤土,地势平坦,有灌排条件。前茬为玉米,也不迎茬。主要技术措施如下:1.选用良种.实践证明,辽豆3号抗病能力强,增产潜力大,为大豆高产打下良好基础。播种前,种子进行严格人工粒选,剔除有虫口粒、破粒、秕粒和杂种粒。精选后的种子发芽率达95％以上。2.整地与施肥.地块于秋季翻耙整地,春耙后拣净根茬,打碎坷垃,顶浆打垄,为播种保全苗创造良好的土壤条件。亩施优质农肥3500公斤,于耙地前撒施做基肥。随播种亩施10公斤磷酸二铵做种肥。播种肥时,肥料与种子之 In 1987, 53.1 mu of contiguous cultivated soybean planted by 20 peasants, including Wangjiajia of Dajia Village of Gengzhuang Town, Gengzhuang Town, Haicheng City, was jointly checked and accepted by the departments of provinces, cities and counties and organized by the Ministry of Agriculture, Animal Husbandry and Fishery Acceptance, approved an average of 261.5 kilograms per mu, Liaoning Province won the first prize of crop yield contest. This piece of soybeans used varieties Liao beans on the 3rd, planting plots are yellow loam, flat terrain, irrigation and drainage conditions. Former crop of corn, nor confiscated. The main technical measures are as follows: 1. Selection of elite. Practice has proved that Liao bean 3 strong disease resistance, yield potential, lay a good foundation for soybean yield. Prior to sowing, the seeds were subjected to a rigorous artificial pelleting process to remove the worms, pellets, grains and hybrid grains. Selected seed germination rate of 95% or more. 2. Land preparation and fertilization The plots turn over the rakes in the autumn to pick up the net stubble after the spring rakes, smashing the jiaogu rubbings and aiming for the ridge to create a good soil condition for sowing seedlings. Mushi high-quality fertilizer 3,500 kilograms, in the rake before spreading Shi Fu base. With planting sowing 10 kg diammonium phosphate fertilizer. Seeding fertilizer, fertilizer and seeds