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马铃薯易感病毒而引起种性退化,导致产量降低。种植马铃薯用种量大,是马铃薯扩大发展的限制因素。秋季留种有效地解决了这个问题。秋季留种栽培要点为: 一、脱毒小整薯作种选用对光照不敏感的鲁引1号品种的脱毒小整薯秋播,以防高温多雨引起烂种。生产小种薯的方法,是用脱毒原种切块,高度密植[每1/15公顷(亩)2.0万～2.2万株].利用早春阳畦或三膜大棚保护栽培,1月下旬或2月初播种,4月底、5月初收获,较春露地马
Potato virus susceptible to species-induced degradation, resulting in reduced yield. Planting large quantities of potatoes, potato expansion is the limiting factor. Staying in the autumn effectively solves this problem. Cultivation points for autumn leave: First, the small whole-virus virus-free selection of small insensitive to the light of the Lu Yin No. 1 varieties of small whole potato autumn sowing, in case of high temperature and rain caused by rotten species. The method of producing small seed potato is to cut the block with detoxification seed and plant it in a high density [every 1/15 hectare (mu) 20,000 ~ 22,000 plants]. Cultivation is carried out in the early spring or in the three-film greenhouse. In late January or 2 Sowed early in April, the end of April, early harvest in May, more open to the horse