Effect of Planting Methods on Stem and Leaf Growth,Yield and Marketability of Storage Roots of Two Types of Sweetpotato
The aim was to clarify the effects of planting methods on the growth and yield of sweetpotato.'Taizishu No.1'and'Taishu 15'were used as experimental materials to study the effects of straight,oblique and flat planting methods on the growth of stem and leaf,T/R value,the root expanding velocity,yield and its constituent factors,and marketing tuber ratio of the two types of sweetpotato varieties.The results showed that the fresh yield and dry yield of the storage root of the two varieties were shown as flag planting＞oblique planting＞straight planting.There was no significant difference in T/R value between the two varieties under oblique planting and flat planting,but it was significantly lower than that of straight planting.Among the different planting methods,the storage root expansion rate of sweetpotato of the two varieties was shown as flat planting＞oblique planting＞straight planting.The marketing tuber ratio of the two sweetpotato varieties under flat and oblique planting was higher than that of straight planting,and the root number per plant and the evenness of the sweetpotato roots under flat planting were better than those under oblique planting.In conclusion,flat planting and oblique planting were better than straight planting,which could improve the yield and marketability of fresh-edible sweetpotato.Flat planting was more suitable for fresh-edible sweetpotato,and the suitable planting method for starch sweet potato can be selected according to the planting conditions.
万方数据
维普
