甘薯切块直播栽培，是将薯种切块，防腐处理后直接插于大田，并配以覆膜、清棵等项措施。1995年经过试验，获得增产46．5％的效果。1．选种选用结瓜平、产量高、秧型短、出平率较高品种，如济薯1号。薯种150克左右，无冻、无伤、无病著块60千克作种。2．切块选晴暧无风天气，于 Sweet potato diced live broadcast cultivation, is the potato cut, anti-corrosion treatment directly inserted in the field, and with the coating, clearing trees and other measures. After testing in 1995, 46.5% increase in yield was achieved. 1. The selection of the election Guaping Ping, high yield, seedling short, out of a higher rate of varieties, such as the JZ No. 1. About 150 grams of potato species, no freezing, no injuries, disease-free piece of 60 kg for the species. 2. Chosen sunny warm windless weather, at