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1.增施有机肥,氮、磷配比施用 .增施有机肥利于改善土壤结构,增强蓄水保肥能力。据试验,亩产180公斤大豆需纯磷5公斤,纯氮3公斤。即亩施尿素2.5公斤和磷一铵10公斤或施碳铵15公斤和30公斤钙镁磷肥均可收到显著增产效果。有机肥和磷肥混合后施底肥较好。 2.根瘤菌剂拌种大豆根瘤菌株113-2和61A76均能与“中豆19”形成较佳共生,亩产较不拌种提高15%以上。使用方法:用少量水(稀面汤更好)将种子喷湿,倒入菌剂拌匀、菌剂亩用量0.2公斤(由中国农科院作物所大豆生理研究室提供),在荫凉处晾干,即可播种。
1. The application of organic manure, nitrogen and phosphorus ratio application.Improved organic fertilizer benefit to improve the soil structure, enhance water storage and fertilizer abilities. According to the test, 180 kg of per-mu soybean required 5 kg of pure phosphorus and 3 kg of pure nitrogen. That is, 2.5 kg of urea and 10 kg of ammonium phosphate and 15 kg of ammonium bicarbonate and 30 kg of magnesium, magnesium and phosphate fertilizer can receive a significant increase in yield. Fertilizers and phosphate fertilizer after mixing base fertilizer better. Rhizobium seed dressing soybean soya strains 113-2 and 61A76 with “Zhong Dou 19 ” formed a better symbiosis, more per acre than non-seed dressing increased by 15%. How to use: Use a small amount of water (thin soup is better) to spray the seeds wet, pour bacteria agent mix well, the amount of 0.2 kilograms of fungus acres (by the Chinese Academy of Agricultural Sciences Crops Soybean Physiology Laboratory), in the shade to dry , You can sow.