Compound herbicide suitable for planting sesban and alfalfa in Huang-Huai-Hai region

Abstract

The invention discloses a compound herbicide suitable for planting sesban and alfalfa in the Huang-Huai-Hai region. The compound herbicide is prepared by producing biochemical fulvic acid by using fungi residue, wood residue, furfural residue, corn cob residue and the like, and compounding basic materials including biochemical fulvic acid, a cyclohexenone herbicide and an imidazolone herbicide. All the components of the compound herbicide are obvious in a synergistic effect; the compound herbicide is simple in processing technology, low in cost and remarkable in economic and ecological benefits, thus belonging to an environment-friendly herbicide.

Description

Technical field [0001] The invention relates to the field of herbicide preparation, in particular to the use of biochemical fulvic acid, cyclohexenone herbicides, imidazolinone herbicides and the like to produce a compound herbicide suitable for planting sesame and alfalfa in the Huanghuaihai area. Background technique [0002] Sesbania and alfalfa are currently the main green manure crops grown in the Huanghuaihai area. In recent years, driven by the adjustment of agricultural structure, the development of deep processing industries, returning farmland to grassland and grassland rotation projects, the planting area has expanded year by year. However, affected by the traditional planting industry layout and policies, the production bases of Sesbania and Alfalfa in the Huanghuaihai area are mostly distributed in low-yield fields, coastal areas or along the Yellow Beach, where the soil is barren and the weeds are serious. However, due to the lack of special herbicides, growers are...

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Problems solved by technology

[0004] Comparing the above studies comprehensively, the shortcomings are: (1) The herbicide screening tests were all carried out at the seedling stage (pre-emergence to 5-leaf stage), and there was a lack of research on the entire growth period, especially the pre-emergence, post-emergence to ridge sealing stage , The herbicide research from the ridge sealing period to the pod setting period is not involved; (2) The relevant experiments only stay in the screening stage of the existing herbicides, and the research and development of special herbicides for alfalfa and field greens has not been reported; (3) The experimental treatment They are all single-sprayed, and no compound research has been carried out. In particular, the article "Test of Fourteen Chemical Herbicides on Weeds in Alfalfa Fields in Cangzhou Area" pointed out that "Gramina herbicides or broad-leaved grasses alone in the seedling stage of alfalfa sown in Cangzhou area Herbicides are not working well," but no solution is given

The shortcomings of current related research and application are: (1) When the two are used alone, the drug effect period is prolonged. Cyclohexenone herbicides generally kill weeds in about 10 days, and imidazolinone herbicides generally kill weeds in about 20 days. (2) The research on the mixed use of the two has not been reported or made public; (3) The dosage form of cyclohexenone herbicides is mainly emulsifiable concentrate, which causes serious environmental pollution; (4) The dosage form of imidazolinone herbicides is water Cyclohexenone herbicides are mainly herbicides, and the solubility of cyclohexenone herbicides is poor, and there is no research and development of mixed formulations

[0010] Comprehensively comparing the above studies, the shortcomings of the current research and development of biochemical fulvic acid are: (1) Although the fermentation process is relatively simple, there are fermentation microorganisms that are easily affected by the external environment, unstable activity, long fermentation time, low efficiency, and harmful Bacterial growth and other issues

(2) Although the currently disclosed oxidation method shortens fermentation 60d-90d to oxidation 18d-36d, there are still shortcomings such as complex equipment, cumbersome process, high energy consumption, high cost, and low efficiency.

(3) Although the fulvic acid prepared by the sulfuric acid acetone method has high purity, the preparation process is too complicated, and there are problems such as strong acid and strong alkali pollution and high equipment requirements

In addition, water-soluble carbohydrates, amino acids, proteins, sugar and acid substances, etc. are discarded, and the biological activity of the product is not as good as that of fermentation and oxidation.

(4) The finished fulvic acid is generally used in the currently disclosed herbicides, and the cost is high, and the application of biochemical fulvic acid in herbicides has not been reported or disclosed

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