A kind of macroelement water-soluble fertilizer and preparation method thereof

Abstract

The present invention discloses a water-soluble fertilizer containing a large number of elements, and a preparation method thereof. The water-soluble fertilizer is mainly prepared by mixing, grinding and crushing the following raw materials by mass: 15-25% of potassium dihydrogen phosphate, 5-15% of urea, 25-40% of potassium nitrate, 10-20% of ammonium sulfate, 15-25% of potassium sulfate, 1-5% of boric acid, 0.5-4% of EDTA-Zn, and 0.1-0.8% of an organosilicon auxiliary agent. According to the present invention, with the water-soluble fertilizer, characteristics of root system developing, strong growth, thick leaf, green color and seedling strengthening are provided; the soil fertility is improved, and the chemical fertilizer consumption is reduced; the precise fertilizer application according to different crops is adopted so as to overcome the waste of consumption of a large number of the fertilizer in the conventional method, such that the use age of the existing nature resources can be prolonged; the nutrients required by crops are rich and reasonable, the yield is stable, the quality is excellent, and the green product detection specification can be achieved; and the farmer cost and the labor are reduced, and the water-soluble fertilizer consumption per mu can be reduced by 2 / 3-4 / 5 compared with the conventional fertilizer consumption per mu.

Description

technical field [0001] The invention relates to the field of agriculture and forestry, in particular to a large-element water-soluble fertilizer and a preparation method thereof. Background technique [0002] Since the 1970s, the amount of conventional chemical fertilizers such as compound fertilizers, urea, and diamines used in agriculture and forestry has increased year by year. The amount of pesticides used is increasing, resulting in the phenomenon that the pesticides and fertilizers of crop products exceed the standards are becoming more and more common, seriously affecting people's physical and mental health. [0003] At present, the amount of chemical fertilizer used in the prior art is more than 10 times that of the 1980s. This long-term fertilization method has caused the following serious problems: [0004] 1), waste of resources, because the preparation process of the current conventional nitrogen, phosphorus and potassium compound fertilizer is relatively rough,...

AI Technical Summary

Problems solved by technology

[0004] 1), waste of resources, because the preparation process of the current conventional nitrogen, phosphorus and potassium compound fertilizer is relatively rough, and its utilization rate is low;

[0005] 2) The amount of fertilizer per mu is large, and the amount of conventional chemical fertilizers is generally about 100 kg per mu, which increases the cost of farmers;

[0006] 3) Due to the large dosage, the actual plant absorption is not complete, so it causes different degrees of fertilizer pollution to the soil

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