Special peanut film-coating slow-release fertilizer and preparation process thereof

Abstract

The invention discloses a special peanut film-coating slow-release fertilizer and a preparation process thereof. The special peanut film-coating slow-release fertilizer utilizes the effects of exchange, adsorption, combination and chelation of humic acid, and a reactant, a cross-linking agent and a film-forming agent are added to the humic acid to prepare a special peanut slow-release film-coating agent; then special peanut slow-release film-coating agent is mixed with a proportioned special peanut fertilizer; and an obtained mixture is subjected to granulating, film coating, dehumidifying, cooling and screening to prepare the special peanut film-coating slow-release fertilizer. The humic acid contained in the special peanut film-coating slow-release fertilizer is a high-quality organic fertilizer, and not only can be decomposed to provide nutrients, but also can stimulate the activity of root nodules, enhance the nitrogen fixing capacity and improve the disease resistance and the continuous cropping resistance. The special peanut film-coating slow-release fertilizer and the preparation process not only are a break of a slow-release technology of the fertilizer industry, but also are the perfection and the improvement of a peanut fertilizing technology, and achieve the purposes of increasing the yield, reducing the cost and realizing high efficiency on peanut production.

Description

technical field [0001] The invention relates to a slow-release fertilizer and a manufacturing process thereof, in particular to a peanut-specific slow-release fertilizer and a manufacturing process thereof. Background technique [0002] Due to the low utilization rate of fertilizers and the impact of large-scale fertilization on the ecological environment, the fertilizer industry and related scientific research departments at home and abroad have always regarded the slow and controlled release technology of fertilizers as an emerging research topic. [0003] The earliest slow-release fertilizer research in my country began in 1972, and in 1985, urea was successfully coated with potassium ammonium phosphate as the coating agent. Gradually develop a sustained and controlled release technology using plastics, resins, paraffin, polyethylene, elemental sulfur and other substances as coating agents. my country has developed into the country with the largest variety of slow and co...

AI Technical Summary

Problems solved by technology

Peanuts need less fertilizer in the early stage and a large amount of fertilizer in the middle and later stages, and because of the planting method of mulching the whole process, it brings difficulties to peanut fertilization, that is to say, the fertilization of peanuts can only rely on one-time base fertilizer to solve the problem of fertilizer demand in the whole process