Efficient controlled-release organic fertilizer for grapes and preparation method of efficient controlled-release organic fertilizer

Abstract

The invention discloses an efficient controlled-release organic fertilizer for grapes and a preparation method of the efficient controlled-release organic fertilizer. The efficient controlled-release organic fertilizer comprises the following raw materials in parts by weight: 30-40 parts of calcium magnesium phosphate-coated urea, 20-40 parts of monopotassium phosphate, 25-35 parts of potassium sulfate, 15-20 parts of peanut meal, 10-15 parts of corn straw charcoal powder, 5-8 parts of diatomite, 15-25 parts of bentonite, 1-2 parts of borax, 4-6 parts of modified humic acid, 20-40 parts of animal wastes, 20-30 parts of rape seed cakes, 1-3 parts of ferrous sulfate, 0.5-1 part of manganese sulfate, 1-2 parts of copper sulfate, 1-2 parts of ammonium molybdate and 1-3 parts of polyvinyl alcohol. The invention further discloses the preparation method for the efficient controlled-release organic fertilizer. The efficient controlled-release organic fertilizer is rich in nutrient substance and good in controlled-release effect.

Description

technical field [0001] The invention relates to the technical field of special fertilizers, in particular to a high-efficiency slow-release organic fertilizer for grapes and a preparation method thereof. Background technique [0002] Grape is a deep-rooted crop. The main root system is distributed in the 20-60cm soil layer. Fertilization needs to be dug. The efficiency of grape planting in my country is low, which affects the enthusiasm of farmers. Insufficient element content requires repeated fertilization, which reduces fertilizer use efficiency, and quick-acting fertilizers dissolve quickly in the soil, and the fertilizer effect is short. During the annual growth cycle of grapes, multiple fertilization is required to meet the needs. Multiple fertilization not only damages the root system, Also greatly increased the labor intensity of farmers, how to prepare a kind of nutrient-rich fertilizer for grapes with good slow-release effect has become a technical problem to be solv...

AI Technical Summary

Problems solved by technology

[0002] Grape is a deep-rooted crop. The main root system is distributed in the 20-60cm soil layer. Fertilization needs to be dug. The efficiency of grape planting in my country is low, which affects the enthusiasm of farmers. Insufficient element content requires repeated fertilization, which reduces fertilizer use efficiency, and quick-acting fertilizers dissolve quickly in the soil, and the fertilizer effect is short. During the annual growth cycle of grapes, multiple fertilization is required to meet the needs. Multiple fertilization not only damages the root system, It has also greatly increased the labor intensity of farmers. How to prepare a fertilizer for grapes that is rich in nutrients and has a good slow-release effect has become a technical problem that needs to be solved at present.