Selenium-rich microbial liquid fertilizer and preparation method thereof

Abstract

The invention relates to a selenium-rich microbial liquid fertilizer which is prepared from the following components in percentage by weight: 10-30% of treated livestock farm excreta, 4-10% of amino acid, 1-4% of polymyxin, 1-4% of bacillus cereus, 1-3% of organic selenium, 10-30% of urea, 12-25% of monopotassium phosphate and 30-40% of water, and can prevent soil-borne diseases, nematodes and kiridae diseases, accelerate plant growth and promote growth of plants. The fertilization effect of fruit trees and vegetables and fruits is effectively improved. The livestock farm excrement of the selenium-enriched microbial liquid fertilizer is a green ecological fertilizer, raw materials are easy to obtain, the content of organic matters in the livestock farm excrement reaches 15% or above, the organic matters have mineralization and humification effects, and meanwhile, the livestock farm excrement is rich in carbon, phosphorus and potassium, so that the carbon, phosphorus and potassium are easily absorbed by plants, the damage of the fertilizer to soil is reduced, and the fertilizer is applied in a root wetting manner; and non-liquid-level spraying is adopted, so that the application effect can be effectively improved, and the waste of the fertilizer is reduced.

Description

technical field [0001] The invention relates to the technical field of liquid fertilizers, in particular to a selenium-enriched microbial liquid fertilizer and a preparation method thereof. Background technique [0002] Microbial fertilizers, also known as biological fertilizers, inoculants or bacterial fertilizers, refer to a type of fertilizer products that use the life activities of microorganisms as the core to enable crops (fruit trees, vegetables, etc.) to obtain specific fertilizer effects. There is an essential difference between microbial fertilizers and micro-fertilizers: the former is living life, while the latter is mineral elements. Selenium-enriched microbial liquid fertilizer is a liquid microbial fertilizer rich in selenium. Selenium is a non-metallic element with a chemical symbol Se. It is located in the fourth period VI A group (element No. 34) in the periodic table of chemical elements. Essential nutrients and beneficial nutrients for plants, etc. Selen...