Abstract:

The ipomoea batatas lam is one of world staple food crops, also is the important industrial crop and the feed crops. In recent years, the domestic scholars have conducted the massive research to the high yield cultivation technique of the ipomoea batatas lam. In order to improve the yield of ‘Shangshu 19’, the article uses the orthogonal experiment method through combining the experiment, basing on the cultivation technology of ipomoea batatas lam in different transplanting time, planting density, ridge width, ridge height four factors. The article conducts the contrast experimental study for the ipomoea batatas lam, in order to select the best comprehensive technique measures and guide the field production. The results showed that, the five combinations got the highest yield. There were significant differences with other groups. The important cultivation and management measures were the timely plug, the proper ridge and the rational application of fertilizer.