蚕豆田间管理技术双柏县妥甸镇农科站６７５１００苏政发一、适时追肥蚕豆幼苗期，根瘤菌繁殖能力弱，固氮能力差，应追腋一定数量的磷钾肥和少量的氮肥，一般每亩施尿素４～５千克，或亩施１．３～２吨清粪水。钾肥可亩施１００～１５０千克优质草木灰，磷肥亩施４０～５... Broad bean field management technology Shuangbo County town of Agricultural Science Station 675100 Su Zhengfa First, timely topdressing broad bean seedling stage, rhizobia reproductive capacity is weak, poor nitrogen fixation should be axillary axillary certain amount of phosphorus and potassium fertilizer and a small amount of nitrogen fertilizer, the general per acre Shi Urea 4 ~ 5 kg, or Mushi 1.3 ~ 2 tons of manure. Potassium fertilizer can apply 100 to 150 kg of high-quality plant ash, phosphorus fertilizer Mushi 40 ~ 5 ...