Preparation method of all-nutrition type liquid fertilizer

Abstract

The invention discloses a preparation method of an all-nutrition type liquid fertilizer. The preparation method comprises the following steps: using 25-35 parts of humic acid, 1-2 parts of zinc sulfate and 0.5-1 part of copper sulfate to prepare a solution A, adding 48-72 parts of water into 6-9 parts of ferrous sulfate and 3-6 parts of ethylenediaminetetraacetic acid to prepare a solution B, using 3-6 parts of boric acid, 1.5-3 parts of manganese sulfate, 3-6 parts of magnesium sulfate, 51-60 parts of potassium dihydrogen phosphate and 4.5-7.5 parts of glacial acetic acid to prepare a liquid C; mixing the solution A, the solution B and the solution C in proportion and adding urea and ammonium dihydrogen phosphate at the same time, and stirring to form a uniform solution; and regulating the pH value to 3.5-5 by using the humic acid and filtering to finally obtain the all-nutrition type liquid fertilizer. The method disclosed by the invention has the characteristics of simple process, suitability for large-scale industrial production, low equipment requirements, capability of enhancing stress resistance of crops, no toxicity, no harm, no environmental pollution and no soil hardening.

Description

technical field [0001] The invention relates to a method for preparing an organic fertilizer, in particular to a method for preparing a full-nutrition liquid fertilizer. Background technique [0002] Nutrients are the basis of plant growth, fertilizers are the grain of crops, and the scientific and rational use of fertilizers is one of the most important contents of agricultural production. With the development of modern agriculture, fertilizers play an important role in increasing agricultural production. 60% of the increase in my country's grain production comes from chemical fertilizers. However, due to the rigid reduction of cultivated land area and continuous population growth, it is necessary to feed the world with only 2% of the world's cultivated land. 22% of the population, on the basis of solving the problem of food and clothing, is moving towards a well-off and prosperous life. The crop yield per unit area must be continuously increased, and high-yielding crops wil...

AI Technical Summary

Problems solved by technology

With the development of modern agriculture, fertilizers play an important role in increasing agricultural production. 60% of the increase in my country's grain production comes from chemical fertilizers. However, due to the rigid reduction of cultivated land area and continuous population growth, it is necessary to feed the world with only 2% of the world's cultivated land. 22% of the population, on the basis of solving the problem of food and clothing, is moving towards a well-off and prosperous life. The crop yield per unit area must be continuously increased, and high-yielding crops will continue to take a large amount of nutrients from the field. However, due to insufficient nutrient input in agricultural production And fertilization is unscientific. At present, due to the influence of different soil components and different types of crops in my country's agricultural production, nutrient application is unbalanced, the proportion is imbalanced, fertilizer application is not universal, and blind fertilization leads to crop yield decline, quality reduction, and arable land quality degradation. , crop diseases and insect pests commonly occur, a large amount of nitrogen, phosphorus and potassium loss has caused serious agricultural non-point source pollution, and the ecological environment in some areas has deteriorated, seriously restricting the sustainable development of agricultural production

However, the existing chemical fertilizers are all solid chemical fertilizers. Excessive application of chemical fertilizers for a long time will cause soil compaction, soil acid-base imbalance, crop yield reduction, quality decline, and slow absorption speed, which is highly affected by soil physical and chemical properties and temperature. The effect of increasing production is not significant. In the past ten years, the input of chemical fertilizers in my country has increased by 90%, while the total grain output has only increased by 9%.

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