Method of weeding and weed control in the process of planting and production of Chinese medicinal material Astragalus

Abstract

The invention discloses a method for weeding and weeding control in the planting and production process of the traditional Chinese medicinal material Astragalus, which comprises the following steps: tilling the ground after the autumn harvest one year before planting, watering after the soil is thawed in spring, spraying herbicides before seedlings, and breaking up weeds with power rakes before planting. , Astragalus planting, spraying post-emergence herbicide and spraying brassin, artificial weeding and weed treatment around the field. Consider the field and surrounding plots as a whole, with a five-year cycle. In the 2nd to 3rd year, if the density of all kinds of weeds in the field is below 0.4 plants / square meter, post-emergence herbicides are no longer used, and from In the fourth year, post-emergence herbicides and manual weeding are no longer used. After the fifth year, pre-emergence and post-emergence herbicides and manual weeding are no longer used. Gradually, the number of weeds in the fields and surrounding plots is continuously reduced. In the end, weeds are completely eliminated from the field, and weeds are completely eliminated in the field, which not only greatly reduces the cost of weeding, but also the finished astragalus obtained from the weeding operation becomes an organic and healthy product.

Description

technical field [0001] The invention relates to a weeding method in the planting process, in particular to a weeding and weeding control method in the planting and production process of the Chinese medicinal material Astragalus membranaceus. Background technique [0002] From ancient times to the present, weeds and crops have been incompatible with each other in agricultural production. Weeds have always been a headache for agricultural producers due to their strong adaptability, vigorous vitality, and short growth cycle. It leads to a large reduction in crop yield, so effective treatment of weeds plays an important role in agricultural production. [0003] The traditional weeding methods are field weeding and spraying herbicides. The first method of weeding requires manpower and time input, and because weeds have a short growth cycle and grow faster, the input cost is relatively high. The second method of weeding is due to the toxicity of herbicides, and there may be pest...

AI Technical Summary

Problems solved by technology

The first method of weeding requires labor and time input, because the growth cycle of weeds is short and grows faster, so the input cost is higher

The second method of weeding is due to the toxicity of herbicides, and there may be pesticide residues after harvesting. Astragalus, as a medicinal plant, has strict requirements for the use of pesticides, and many herbicides cannot be used. At the same time, as a relatively small herbicide Economic crops, there are no particularly effective chemical herbicides, and most of the herbicides that can be used will affect the growth of Astragalus

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