Cultivation method capable of increasing yield of southern sweet potatoes

Abstract

The invention relates to a cultivation method capable of increasing the yield of southern sweet potatoes. The cultivation method includes the steps of soil preparation and ridge forming, base fertilizer applying, potato tuber processing, cuttage, straw or dry weed covering, water, fertilizer and disease and insect damage managing and harvesting. On the basis of a traditional bare land cultivation method, the method of covering straw or dry weed is adopted, evaporation of soil water in the cultivation layer is effectively reduced, the fertilizer and water conditions and ventilation of soil are effectively improved, and good environment is provided for growth of potato tubers. The effect of inhibiting weed growth on the ridge face by covering the straw or dried weed of certain thickness, intertillage weeding is not needed in the growth stage, labor intensity of field management can be relieved, and cost is reduced; as the additive is the straw or dried weed which can be returned to the soil after rotting to increase organic matter in the soil, and the additive is environmentally friendly and free of pollution. Creeping stems and the soil are separated by the straw, it is avoided that adventitious roots grow on stem joints, and labor for lifting and overturning vines is saved. Compared with the prior art, the yield of sweet potatoes through the cultivation method is increased by 20% or more.

Description

technical field [0001] The invention relates to a crop cultivation method, in particular to a cultivation method capable of increasing the output of southern sweet potatoes, and belongs to the technical field of plant cultivation. Background technique [0002] Sweet potato (Ipomoea batatas Lam) is an important crop to ensure my country's energy security and food security. Its total domestic output is second only to rice, wheat and corn, ranking fourth. In order to obtain a higher yield-increasing effect, in recent years, many scientific researchers have explored the cultivation techniques of using plastic film (such as covering polyethylene plastic film), wheat straw, wheat bran, etc. as coverings, which have a significant early-maturing and yield-increasing effect, so they can be rapidly grown. Promote apps. However, there are factors that consume material resources and cause pollution to the environment in plastic film mulching cultivation (it is difficult to recycle the ...

AI Technical Summary

Problems solved by technology

However, there are factors that consume material resources and cause pollution to the environment in plastic film mulching cultivation (it is difficult to recycle the plastic film, it is difficult to degrade, and the residual amount degrades for a long time, which seriously affects the subsequent yield of other crops), especially when using white plastic film. Overgrown grass also consumes a lot of fertility, sunlight

There is a lot of rain in the south. If the traditional cultivation method is adopted, the sweet potato will easily produce adventitious roots after the ridge is sealed. If the vines are not lifted in time, a large amount of photosynthetic products will be consumed and the yield will be reduced. However, if the vines are lifted many times during the production process, the artificial cost reduces revenue