Method for cultivating konjak by means of river sand coverage

Abstract

The invention provides a method for cultivating konjak by means of river sand coverage. The method comprises that (1) in mid-to-end of October, green manure is applied to a field where konjak needs to be planted; (2) after konjak is harvested, konjak serving as konjak seeds is put indoors and is covered by river sand in a layered manner for storage; (3) in mid-to-end of April in the next year, the green manure is ploughed back into the field where konjak needs to be planted, the land is prepared timely, and ridges are made according to the specification of 1.1-1.2m; (4) during the sowing process, two konjak sowing trenches are excavated in the ridges, the konjak seeds are put in the sowing trenches, then a layer of soil with the thickness of 5-10 cm covers the konjak seeds, and then fertilizer is applied; after being fertilized, the konjak seeds are covered by river sand with the thickness of 10-15 cm. According to the invention, river sand has anti-bacteria and disease-prevention effects, and the seed decay rate is reduced; at the same time, river sand can improve the soil, konjak root areas become loose and have good air permeability, the growth potential is increased, and the incidence of disease of konjak is effectively reduced; river sand can well absorb sunlight, the earth temperature can be increased quickly, emergence of konjak seedlings can be 3-5 days earlier, and the germination rate of the konjak seeds is increased.

Description

technical field [0001] The invention relates to a method for covering and cultivating konjac with river sand, which belongs to the technical field of crop cultivation. Background technique [0002] Konjac is a perennial herbaceous plant of Araceae, rich in glucomannan. Its unique physical and chemical properties have wide application and development value, and it is called a sunrise industry. [0003] As a high-efficiency crop, konjac has the most direct and obvious driving effect on farmers' poverty alleviation. It has become a characteristic income-increasing project of choice in suitable areas. It is already one of the effective ways for farmers to get rid of poverty and revitalize the local economy. However, with the expansion of artificial cultivation and large-scale planting area, the original environment and growth conditions have changed, and the konjac species has degenerated, stress resistance has decreased, yield has decreased, disease resistance has weakened, and...

AI Technical Summary

Problems solved by technology

However, with the expansion of artificial cultivation and large-scale planting area, the original environment and growth conditions have changed, and the konjac species has degenerated, stress resistance has decreased, yield has decreased, disease resistance has weakened, and the incidence of disease is higher. The taro farmers lost a lot, and the occurrence and damage of diseases showed a trend of increasing year by year, which eventually led to a sharp decrease in the planting area, seriously dampened the enthusiasm of farmers to plant konjac, and hindered the development of the local economy