脱毒微型土豆是科研单位采用高新生物技术,在防止昆虫(主要是蚜虫)传播病毒的条件下,生产的无病毒和其它病原菌的土豆原原种。土豆是无性繁殖作物,在栽培过程中极易感染多种病,从而导致种性退化,表现为植株矮小瘦弱,叶片卷曲或皱缩,块茎变形变小,产量明显降低而不能留种。实践证明,利用脱毒微型土豆经过几代元性繁殖,是解决土豆种性退化,大幅度提高土豆单产的有效途径。脱毒微型土豆秋季繁种栽培技术如下: 1 精细整地,施足基肥 1.1 选地。繁种田应选用有机质含量丰富通透性良好、排灌方便的壤土或沙壤土地块,避免与 Virus-free miniature potato is a high-tech biotechnology research institutes, in the prevention of insects (mainly aphids) to spread the virus conditions, the production of virus-free and other pathogens Potato original stock. Potato is a vegetatively propagated crop that can easily infect many kinds of diseases during the cultivation process, resulting in the degeneration of the species, which is characterized by short and thin plants, curling or shrinking of the leaves, the deformation of the tubers becoming smaller, the yield being obviously reduced, and the seeds can not be kept. Practice has proved that the use of virus-free mini-potatoes after several generations of primitive reproduction, is to address the degradation of potatoes, potato significantly improve the effective way to yield. Virus-free miniature potatoes autumn cultivation techniques are as follows: 1 fine preparation, Shi adequate base fertilizer 1.1 selected. Farming should be used to enrich the organic matter content of rich permeability, irrigation and drainage of convenient loam or sandy loam plots to avoid