Vegetable special fertilizer and preparation method and application thereof

Abstract

The invention discloses a vegetable special fertilizer and a preparation method and application thereof. The vegetable special fertilizer includes functional bacteria, bacteriostatic and antiviral agents and mixed mineral particle carriers; the functional bacteria and the bacteriostatic and antiviral agents are adsorbed in the mixed mineral particle carriers, the functional bacteria include high-efficiency nitrogen-fixing bacteria, phosphate solubilizing bacteria and potassium bacteria, and the bacteriostatic and antiviral agents are laminarin and chlorogenic acid. The vegetable special fertilizer has the functions of nitrogen fixing, phosphate-resolving, and potassium-resolving, one time application can meet the nutritional requirements of vegetables for nitrogen, phosphorus and potassiumin the whole growing season, the fertilizer effect is long-lasting, nutrient supply is balanced, the soil is improved, continuous cropping obstacles are overcome, disease resistance of plants is enhanced, the environment is friendly, the yield and quality of vegetables are improved, and the sustainable production of high-quality vegetables is realized.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a vegetable-specific fertilizer with the functions of nitrogen fixation, phosphorus dissolution and potassium dissolution. Background technique [0002] The inorganic nutrients necessary for plant growth are the three major elements N, P, and K (nitrogen, phosphorus, and potassium). Nitrogen is the main component of protein, nucleic acid, and phospholipid, and these three are important components of protoplasm, nucleus, and biofilm. They play a special role in life activities, and nitrogen is also called an element of life. Vegetables have a large demand for N, P, and K. The purpose of fertilization in vegetable production is to meet their needs for the three elements. [0003] The main sources of nitrogen fertilizer supply in agricultural production are human and animal manure, urea, ammonium nitrate, ammonium sulfate, ammonium bicarbonate and other fertilizers that are app...

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Problems solved by technology

[0005] It can be seen that in order to solve the above-mentioned defects such as soil acidification, salinization, impoverishment, low quality of agricultural products and aggravation of non-point source pollution, various improvement methods have been proposed in the prior art. For example, the patent CN101709018A discloses a large particle fertilizer, Disclosed "according to the amount of fertilizer required by different crops and the characteristics of fertilizer required, compound fertilizer, controlled release nitrogen fertilizer, nitrogen and potassium fertilizer compound fertilizer, controlled release nitrogen and potassium compound fertilizer, nitrogen, phosphorus and potassium compound fertilizer are made into 2-500 grams , particle diameter of 2.5 to 12 centimeters", however, the large particle fertilizer is mainly made of inorganic and organic fertilizers, long-term or repeated use will cause soil compaction and fertility decline; at the same time, water-soluble fertilizers have been proposed in the prior art Compared with ordinary fertilizers, water-soluble fertilizers have many advantages such as saving labor, saving water resources, and being convenient to use. Currently, water-soluble fertilizers on the market include various types such as drip irrigation, flushing, and micro-irrigation. At the same time, water-soluble fertilizers also have some disadvantages of ordinary fertilizers; generally speaking, the raw materials for the production of a large number of elements in water-soluble fertilizers are also commonly used nutrient raw materials of nitrogen, phosphorus and potassium, but the water-soluble and insoluble residues have been improved. Essentially changing the form and physical and chemical properties of nutrients, which leads to the low utilization rate of ordinary nitrogen, phosphorus and potassium nutrients in water-soluble fertilizers in the soil, in which a large amount of nitrogen nutrients are lost or denitrified into gaseous nitrogen oxides and enter the atmosphere , while phosphorus and potassium are fixed by the soil and become ineffective. At the same time, due to the convenience of water-soluble fertilizers, farmers often apply excessive or frequent applications in the process of application, which in turn causes soil acidification and secondary salinity. and frequent occurrence of soil-borne diseases