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甘薯切块直播栽培是一项综合性丰产新技术。该项试验在山东莱芜、滕州、泰安等示范均获成功,并于1993年通过验收和鉴定。现将技术方法介绍如下。 选种 选取适合当地种植的优良夏薯品种,大小均匀,每亩用种量40—50千克。剔除受冻害,冷害和病虫害的薯种。 切块漫种 由于种薯上下芽眼密度不同,切块大小有别。顶端芽眼密,切块约为1/3薯长,尾部芽眼稀,切块可为2/3薯长。先将种薯十字纵切4块,再横切一刀,共得8块,首尾分开放置,避免上下颠倒。每亩播种块2800左右。另将母薯保护剂100毫升兑水40—50千克,倒入切块40—50千克,拌匀,浸种10—15分钟,捞出晾干后立即播种。
Live cutting sweet potato cutting is a comprehensive new technology of high yield. The test was successful in Shandong Laiwu, Tengzhou, Taian and other demonstrations, and passed the acceptance and identification in 1993. The technical methods are introduced below. Select the best selection for local cultivation of sweet potato varieties, uniform size, the amount of 40-50 kg per mu. Remove frost damage, cold damage and pests and diseases of potato species. Dicing due to the proliferation of seeds on the different eye density, the size of the diced do not. Bud top bud, cut about 1/3 of potato length, the tail bud eye thinning, cutting can be 2/3 of the potato length. First cross-cut seed 4 cross, and then cross knife, a total of 8, placed separately from the beginning and end, to avoid upside down. About 2800 acres per mu plot. The other side of the sweet potato protectant 100 ml watered 40-50 kg, into the cut 40-50 kg, mix well, soaking 10-15 minutes, remove and dry immediately sow.