Concentrated biogas slurry composite active liquid leaf fertilizer and preparation method thereof

Abstract

The invention relates to a concentrated biogas slurry composite active liquid leaf fertilizer and a preparation method thereof. The concentrated biogas slurry composite active liquid leaf fertilizer comprises the following components by weight: 10-12 grams of amino acid, 2-3 grams of agricultural rare earth, 0.6-1.0 gram of trace elements, 3.0-3.4 grams of medium elements, 4.8-5.2 grams of N-containing major elements and 0.8-1.2 grams of diethyl aminoethyl hexanoate, wherein a base solution is concentrated biogas slurry, and weight of the components is the content of components of every 100 ml of finished products. The preparation method comprises the following steps: (1) regulating the pH value of the concentrated biogas slurry, and adding the agricultural rare earth for reaction; (2) filtering; (3) adding the amino acid; (4) adding the agricultural rare earth; (5) adding the trace elements; (6) adding the medium elements; (7) adding the N-containing major elements; (8) adding the diethyl aminoethyl hexanoate; and (9) filtering, sterilizing and filling to obtain a finished product. Compared with the prior art, the concentrated biogas slurry composite active liquid leaf fertilizer disclosed by the invention has the characteristics of being subjected to chelation reaction by utilizing the concentrated biogas slurry, outstandingly increasing the output, improving the quality and enhancing the disease resistance after being fertilized on the leaves of crops and cash crops, being ideal in fertilizer effect and lower in production cost and realizing large-scale production.

Description

technical field [0001] The invention belongs to the technical field of agricultural fertilizer production, and in particular relates to a concentrated biogas slurry compound active foliage liquid fertilizer and a preparation method thereof. Background technique [0002] With the development of rural animal husbandry and biogas energy projects, the whereabouts of biogas slurry has become a new problem. Direct discharge of biogas slurry will cause serious impact on the environment due to its high content of COD and BOD. Although biogas slurry is a high-quality organic fertilizer, it is difficult for farmers to master fertilization techniques due to low nutrient content, large amount of fertilizer, difficulty in transportation, and large changes in nutrient content of biogas slurry in different livestock and poultry farms and in different seasons. The use of liquid as a fertilizer has relatively large limitations. To solve the problem of using biogas slurry, it is necessary t...

AI Technical Summary

Problems solved by technology

Although the hydrolyzate of raw protein such as earthworms and low-value fish is rich in amino acids and other small molecule active substances, the production cost is too high, the product lacks competitiveness, and it is difficult to scale production and application

There is also a public technology about biogas slurry foliar fertilizer, such as the application publication number: CN101811913A, which is called a biogas slurry vegetable health-preserving and disease-preventing preparation. Although it is also a biogas slurry foliar fertilizer, the biogas slurry that has not been concentrated is selected. The content of nutrients, amino acids and other small molecule active substances is relatively low, and also contains a certain amount of harmful substances such as salt and heavy metal ions, so the use effect is poor, and it is easy to cause secondary pollution of harmful substances; Fertilizers with active ingredients, such as Publication No.: 101406203, are called plant growth regulators and their production methods. Although they are also foliar fertilizers, their use effect is poor and the production process is complicated, which leads to higher costs and cannot be scaled up. production and application of