Cultivation method for intercropping green manure and konjak

Abstract

The invention discloses a cultivation method for intercropping green manure and konjak. The green manure and konjak are intercropped, wherein volatile substances secreted by the green manure can further kill germs, the substance secreted by root systems and microorganisms of the green manure plays an inhibition effect on soft-rot pathogenic bacteria, and plays an important role in lowering soft-rot diseases of the konjak; biological competition edges of the green manure are utilized to inhibit the growth of weeds, the land space is sufficiently utilized, the soil fertility is improved, the yield of the konjak is increased, the quality of the konkak is improved, and economic benefit of a farmer is increased; meanwhile, through a special selenium transfer mode, the selenium content of the konjak is increased, the content of selenium in per kilogram of the fresh konjak can reach 1.6mg / kg or above, the effect is good, and the cost is low at the same time.

Description

technical field [0001] The invention relates to the technical field of crop planting, in particular to a cultivation method for intercropping of green manure and konjac. Background technique [0002] Konjac (Amorphophallus konjac) is the general name of Amorphophallus blume in Araceae. Konjac cultivation has the characteristics of being fond of humidity, afraid of stagnant water, cool, afraid of high temperature, fond of weak light, and tolerant to shade. Konjac tubers are rich in glucomannan, pectin, alkaloids, starch, 17 kinds of amino acids and various trace elements. It is the only plant found to contain a large amount of glucomannan. It is widely used in food, medicine, textile and cosmetics , petroleum and other fields. Due to the wide range of uses and the awareness of konjac around the world, the market demand is increasing, and the export of konjac powder has been exported to Japan, the United States, Canada and other countries. Due to the limitation of raw mater...

AI Technical Summary

Problems solved by technology

[0009] 1. In order to ensure a reasonable density of konjac in the next year, the planting density in the current year must be kept low, resulting in a waste of land and light resources;

[0010] 2. Too low density, good soil fertility and light conditions lead to vigorous growth of weeds, and a large amount of labor costs will be incurred for weeding in the following year;

[0011] 3. The konjac planted in that year cannot be harvested until the next winter, and the growers in that year have no economic benefits;

[0012] 4. After the konjac seedlings are poured in winter, the land is free and bare, and the ice, snow and freezing rain will cause serious damage to the seed taro in the buried soil, rapidly reduce the emergence rate, increase the incidence of soft rot diseases, and cause the production of konjac to decrease;

[0014] 7. Konjac is a potassium-loving crop. Chemical fertilizers with high potassium content are often used in planting. Potassium ion replacement in potassium fertilizer is particularly strong, and it can replace multivalent cations that form the soil aggregate structure, while monovalent potassium ions do not have The key bridge effect, the bond bridge of the soil aggregate structure is destroyed, and the aggregate structure is also destroyed, resulting in soil compaction, affecting the absorption of soil nutrients by konjac cultivated in no-tillage cultivation

[0016] 1. As a net planting, it is only an expedient measure to avoid abandonment, and farmers are not willing to plant it; as a supplement for fertilizing soil and some feed, the economic value is low, and the land utilization rate is not high;

[0017] 2. Intercropping and intercropping with other crops have varying degrees of competition for fertilizer and glory, and it is not conducive to field intertillage management. Due to the dislocation of growth periods, there are stubble conflicts

[0018] In the konjac planting process developed in recent years, soft rot disease is accompanied by the whole konjac planting cycle, causing significant loss of seeds and yield