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甘薯贮藏时常易腐烂。经过多年实践,我们摸到了一些甘薯留种及贮藏保管的技术,一般情况下可以不烂薯。下面谈谈我们的具体做法。一、择地留种要选土质疏松,向阳爽水,一两年内没种过甘薯的地作留种地,生荒地和熟荒地更好,因为这类地黑斑病菌源少。选择留种地时还要考虑当年气候特点,雨水多的年份选用阳坡地;雨水较少年份选用平地;干早年份选用阴坡地。从种薯来说,用迟栽薯、秋薯作种比用春薯作种好,因迟栽的生育期短,浆水足,薯块质量好,执逆力强,耐贮藏,且生活力强,发芽快而多,一般比春薯早出苗2-3天,发芽率高10％以上,产量高10-20％。二、适时收获收早了,窖内温度高,种薯易空心发芽;迟收则气温低,薯块易受冻害,也易感病空心。在我地一般以霜降前后收获较为适宜。要抓住雨后一两个晴天,集中抢收种薯。当天收当天割蔓,如遇雨,也可先割蔓,经日晒1-2天后再收。收获时要做到“四轻”
Sweet potatoes are often perishable when stored. After many years of practice, we touched some sweet potatoes to stay kind of storage and storage technology, under normal circumstances can not rotten potato. Here to talk about our specific practices. First, choose to stay kind Select to loose soil, sunny cool water, a year or two did not plant sweet potatoes for land, habitat and wasteland is better, because these sources of black spot less bacteria. Choose to stay when you have to consider the climate characteristics of the year, the rainy year use sunny slope; less use of flat ground in the rain; dry early years use shady. From the seed, the use of late planting potato, autumn potato as seed than the use of sweet potato as a good planted late because of the short growth period, adequate water, tubers good quality, strong resistance, storage, and life Strong, germination faster and more, generally 2-3 days earlier than the emergence of spring sprouts, germination rate of 10% or more, high yield 10-20%. Second, timely harvest Harvest early, high temperature inside the pit, seed easy to germinate hollow bud; late harvest, the temperature is low, tubers susceptible to frost damage, but also susceptible to disease hollow. In my general frost before and after harvest more appropriate. To catch one or two sunny days after the rain, grab the seeds of potato. The same day to cut the vine that day, in case of rain, you can also cut the first man, after the sun 1-2 days and then received. Harvest to be “four light”