Fertilizer synergist and preparation method thereof

Abstract

The invention relates to a fertilizer synergist and a preparation method thereof. The fertilizer synergist contains, in percent by weight, 60-65% of humic acid, 25-30% of trace elements, and 5-15% of composite bacterial strains. The trace element composition is composed of the following raw materials in percent by weight based on the total weight of the race element composition: 10-20% of calcium sulfate, 10-20% of magnesium sulfate, 0.5-1.5% of borax, 2.5-4.5% of ferrous sulphate, 0.5-1.5% of manganese sulfate, 0.5-1.5% of zinc sulfate, 0.25-0.75% of copper sulphate, and 0.25-0.75% of ammonium molybdate. The composite bacterial strains is composed of the following raw materials in percent by weight based on the total weight of the composite bacterial strains: 30% of azotobacter, 25% of a phosphate-dissolving bacterium, 10% of actinomyces, 10% of potassium bacteria, 12% of ferment bacteria, and 13% of trichoderma spp. The fertilizer synergist is capable of obviously improving fertilizer utilization rate and absorption rate and improving soil fertility, and helps to substantially increase crop yield and improve economic benefit.

Description

[0001] technical field [0002] The invention relates to the field of fertilizers, in particular to a fertilizer synergist and a preparation method thereof. Background technique [0003] my country feeds 22% of the world's population with 1% of the world's arable land, and more than half of the credit should be attributed to chemical fertilizers. However, in the prior art, common chemical fertilizer nitrogen is very volatile and prone to nitrification, and the nutrients in the chemical fertilizer will be lost with the water in the soil. [0004] Although traditional chemical fertilizers such as diammonium phosphate, ammonium bicarbonate, and ammonium sulfate can be directly absorbed by plants, the disadvantages are fast volatilization, low utilization rate, less absorption by plants, and impact on the environment. Urea belongs to the amide nitrogen fertilizer, because it needs three-step transformation in the process of decomposition in the soil: the first step is to releas...

AI Technical Summary

Problems solved by technology

However, in the prior art, common chemical fertilizer nitrogen is very volatile and prone to nitrification, and the nutrients in the fertilizer will be lost with the water in the soil

[0004] Although traditional chemical fertilizers such as diammonium phosphate, ammonium bicarbonate, and ammonium sulfate can be directly absorbed by plants, the disadvantages are fast volatilization, low utilization rate, less plant absorption, and environmental impact.

Urea belongs to the amide nitrogen fertilizer, because it needs three steps of transformation in the process of decomposition in the soil: the first step is to release urease from bacteria, fungi and actinomycetes, and urease decomposes urea to form ammonium carbonate and ammonium bicarbonate , and they are easily decomposed into ammonia, carbon dioxide, water, and are easy to volatilize in large quantities, causing direct economic losses and reducing the utilization rate of urea; in the second step, ammonium carbonate and ammonium bicarbonate are decomposed into nitrous state by nitrosating bacteria Nitrogen, and nitrite nitrogen, because it is an anion, is not easily absorbed by anion-soil colloidal particles, resulting in loss; in the third step, nitrous nitrogen is decomposed by nitrifying bacteria to become anion nitrate nitrogen, and nitrate nitrogen Very easy to lose, causing the third loss of urea

Therefore, the overall utilization rate of chemical fertilizers is not high, which not only wastes huge resources and energy, but also pollutes the environment and adds a lot of burden to farmers.