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山东省乳山县近年在全县范围内推广了“集中爆花”育苗法。所谓“爆花”,就是薯芽萌动之前先凸起疙瘩,裂开口后,便出现白花绒状,即称为“爆花”。“集中爆花”育苗就是先将3—6炕薯种集中在一个火炕上,加温催芽到开始爆花为止,然后再分排到各个火炕上育苗。比直接上床育苗的好处是:头茬芽数可提高30—60%,百株苗重400克以上;对黑斑病、软腐病的防效高达90%以上,节省烧柴86%;每炕可放薯种4,800—5,000斤。具体做法除与一般温床育苗相同外,还须注意:要浇足底水,经常保持湿度85%左右,薯种要经消毒处理。当炕
Rushan County, Shandong Province in recent years in the county to promote the “concentrated popcorn” nursery law. The so-called “popcorn”, that is, before the potato sprout germinated pimple, split the mouth, there will be white velveteen, known as the “popcorn.” “Concentrated popcorn” nursery is the first 3-6 kudan concentrated in a kang heated to germinate until germination, and then sub-row to the various nursery on the kang. Than the direct benefits of bed nursery is: the number of head stubble can be increased by 30-60%, one hundred seedlings more than 400 grams; against black spot, soft rot disease control effect of up to 90%, saving 86% of firewood; each Kang can put potato seed 4,800-5,000 pounds. In addition to the specific practices and general hotbed nursery the same, but also must be noted: to pour the foot of water, often keep the humidity of about 85%, potato species to be disinfected. When kang