Preparation method of cave-applied fertilizer

Abstract

The invention relates to a preparation method of a cave-applied fertilizer. The preparation method comprises the following steps of: preparing a substrate by performing site selection, material preparation, pile construction, punching, pile sealing, fermentation, pile turning, second period fermentation and drying on straws, seedlings, tendrils and leaves; mixing potassium indole butyrate and alpha-pimacol; blending the mixture and calcium carbonate powder to obtain a growth substance; and mixing 90 to 99.5 mass percent of the substrate and 10 to 0.5 percent of the growth substance to obtain the cave-applied fertilizer. By the method, the cave-applied fertilizer can be prepared conveniently; the process is simple and easy to master; the prepared cave-applied fertilizer is applied to a transplanting link, so the root of each seedling has relative rich organic matters, fertility is enhanced, air permeability is enhanced and soil is prevented from being hardened; the applied organic matters comprise a large number of beneficial bacteria, so propagation of various pathogenic bacteria is inhibited and diseases at the seedling stage are greatly reduced; and the cave-applied fertilizer comprises the growth substance, so cell division can be promoted, growth of a root system can be accelerated, and the root system is very exuberant.

Description

Technical field: [0001] The invention relates to a method for preparing hole fertilization. The prepared fertilizer is the fertilizer used in planting holes when vegetable seedlings are planted and transplanted. Background technique: [0002] At present, the following situations have appeared in my country's agricultural production: First, excessive reliance on chemical fertilizers, and nitrogen fertilizers are used in the chemical fertilizers applied. According to statistics, my country's arable land only accounts for 7% of the world's arable land area, but the amount of fertilizer applied accounts for 35% of the world's chemical fertilizer production. Zhang Fusuo, a soil scientist at China Agricultural University, and others have conducted research on soil acidification in my country for more than 20 years, and found that in almost all types of soil found in my country, the pH value has dropped by an average of 0.13 to 0.8 units, which is equivalent to soil acidification. ...

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Problems solved by technology

Second, with the widespread use of chemical fertilizers, the amount of organic fertilizer in farmland is decreasing year by year, and the organic matter in the soil is decreasing year by year. The organic matter in the soil of developed countries in foreign countries is more than 5%, and most of them are less than 1% in my country, which not only reduces the water and fertilizer retention of the soil. Ability to cause the pathogenic bacteria in the soil to compact and reproduce in large quantities, which makes the root development of the crops poor, prone to diseased seedlings and dead seedlings, and it is difficult for transplanted seedlings to survive. Even if they survive, soil-borne diseases will gradually occur

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