Square seeding method for preventing and removing weeds in alfalfa field

Abstract

The invention relates to a square seeding method for preventing and removing weeds in an alfalfa field. The method comprises the following steps: (a) selecting a land; (b) ploughing and harrowing; (c)applying an organic fertilizer; (d) preparing the land; (e) irrigating; (f) seeding, sowing alfalfa seeds in line along the north-south direction by using a no-tillage planter, after the seeding in the north-south direction, seeding from the northeast direction to the southwest direction and intersected with a north-south ridge in 90 degrees, until completely finishing the seeding, and (g) fieldmanagement. The method is capable of, through squarely sowing in the alfalfa field, forming a square encirclement formed by the alfalfa, and forming a small independent habitat, effectively reducing the amount of allelopathic chemicals released by the alfalfa which are blown away by the wind on the one hand, thereby the field weeds are inhibited by the alfalfa allelopathic chemicals so that the field weeds are not grown or grown slowly; and on the other hand, because the alfalfa is arranged squarely, so a growing space of the weeds is affected, thereby reducing the space competition probability of the weeds and the alfalfa.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to a method for controlling weeds in an alfalfa field by adopting a square sowing method when sowing. Background technique [0002] Since 2012, with my country's "Revitalizing Dairy Industry Alfalfa Development Action", "Grain to Feed" and the 2015-2017 Central No. (Medicagosativa, hereinafter referred to as alfalfa) can be planted on a large scale in my country. However, weeds have become a bottleneck in the development of green alfalfa industry. Especially in the first year of alfalfa planting, there are often weeds flooding, which can even lead to failure of alfalfa planting. At present, chemical control is the main method of weed control in the year when alfalfa is planted. Although chemical herbicides are effective in the early stage of control, the drug residues enter the soil or enter livestock and humans through the food chain, polluting the environment, cau...

AI Technical Summary

Problems solved by technology

However, weeds have become a bottleneck in the development of the green alfalfa industry

Especially in the first year of alfalfa planting, there are often weeds flooding, which can even lead to failure of alfalfa planting

At present, chemical control is the main method of weed control in the year when alfalfa is planted. Although chemical herbicides are effective in the early stage of control, the drug residues enter the soil or enter livestock and humans through the food chain, polluting the environment and causing Livestock and humans have chronic harmful effects, endangering future generations, and the consequences are disastrous

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