Planting method free of plastic film mulching, soil preparation, bedding and ridging for potatoes in circulating mode

Abstract

The invention discloses a planting method free of plastic film mulching, soil preparation, bedding and ridging for potatoes in a circulating mode. The planting method is characterized by comprising variety selecting, seed potato processing, soil preparation, preheating and moisture regaining, seeding, wheat straw mat covering, fertilization, seedling emerging and freeze protection, seedling management and water management, wherein the soil preparation comprises the steps of ploughing soil in a first year and applying a mixed fertilizer of stable manure and a black ammonium compound fertilizer, preheating and moisture regaining are conducted ten to fifteen days before planting, and after water is sprayed to the soil, the soil is covered with a wheat straw curtain; fertilization comprises a base fertilizer stage and a topdressing stage; seedling emerging and freeze protection are conducted about fifteen days after seeding, the wheat straw curtain is removed to avoid the situation that seedlings cannot expose out of the soil due to the fact that the seedlings are pressed, the seedlings expose out of the soil in about twenty days, seedling freezing should be avoided at the moment, the seedlings can be covered with the wheat straw curtain at night, but it is noticed that the seedlings cannot be heavily pressed, and when the seedlings grow to 10cm, it is unnecessary to avoid seedling freezing. By means of the planting method, labor input is reduced, economic efficiency is improved, meanwhile use of mulching films difficult to degrade is avoided, and therefore the planting method is economical and protects the environment.

Description

technical field [0001] The invention relates to a potato planting method which can be recycled without plastic film covering, land preparation, ridge and heat preservation, ventilation and water retention materials, and belongs to the technical field of potato planting, in particular to a three-free potato planting method. Recycled potato growing method. Background technique [0002] Potato is an annual herb. It is the third most important food crop in the world because of its high nutritional value, strong adaptability and large yield. Since the formation and growth of potato underground tubers requires a loose, breathable, cool and moist soil environment, the temperature requirements are different. The optimum temperature for tuber growth is 16°C to 18°C. When the temperature is higher than 25°C, the tuber stops. Growth; the optimum temperature for stem and leaf growth is 15°C to 25°C, and the growth stops when it exceeds 39°C, so only if the habit characteristics of the ...

AI Technical Summary

Problems solved by technology

Practical experience shows that the traditional planting method has low yield and small product size, and cannot effectively obtain high economic benefits; due to the call of the national environmental protection economy in recent years, the film used for mulching cannot be degraded, and the mulching film used in potatoes after harvesting is piled up randomly and causes environmental problems. Pollution, the use of mulch should be avoided as much as possible; both mulching and ridge preparation are covered with straw. On the one hand, the labor required for site preparation is large, resulting in high costs. On the other hand, if the straw mulch encounters strong winds, the straw will fly randomly , not only reduces the coverage, but also causes environmental problems of rice straw. At the same time, the workload of recycling rice straw is also large and cannot be recycled. Although potato detoxification tissue culture technology has high yield and high income, it is expensive and cannot be widely used