Quick-acting particle and slow-acting particle mixed controlled release boron fertilizer and preparation method thereof

Abstract

The invention relates to a boron fertilizer and a preparation method thereof. A boron fertilizer is characterized by being prepared by mixing two parts of boron fertilizers, wherein the first part of boron fertilizer accounts for 20 to 50 mass percent, and the second part of boron fertilizer accounts for 80 to 50 mass percent; the first part of boron fertilizer comprises the following raw materials in percentage by mass: 12.5 to 18.5 percent of borax decahydrate, 75.5 to 80.5 percent of borax pentahydrate and 4.5 to 7.0 percent of concentrated sulfuric acid; and the second part of boron fertilizer comprises the following raw materials in percentage by mass: 12.0 to 18.0 percent of borax decahydrate, 72.5 to 77.5 percent of borax pentahydrate, 4.0 to 6.0 percent of concentrated sulfuric acid, 2.5 to 6.0 percent of branched-chain low density polyethylene and 1.5 to 2.0 percent of linear low density polyethylene. The quick-acting and slow-acting combined boron fertilizer produced by the method has stable and lasting fertilizer efficiency, so that the utilization rate of the fertilizer is improved; through one-time basal application, the boron element nutritional and physiological requirements of crops in the whole growth period can be met, and labor application cost is reduced; and the production process is simple, the raw materials are wide in sources, and production cost is low.

Description

technical field [0001] The invention relates to a boron fertilizer and a preparation method thereof. Background technique [0002] Boron is one of the essential nutrients for plants, and it has a significant impact on the growth, development, yield and quality of plants. my country is one of the countries with the most severe boron deficiency. The area of ​​boron deficiency in soil is as high as 492 million mu, accounting for 34.5% of the cultivated land area, mainly distributed in the east of my country, especially the southeast. Applying boron fertilizer is the simplest and most effective way to solve boron deficiency in crops. At present, the commonly used boron fertilizer in my country is mainly borax, which has the advantages of cheap price and convenient supply of raw materials. However, after borax is applied to the soil, borate ions are likely to be lost with rainfall in a short period of time. In the middle and later stages of crop growth, boron application outsid...

AI Technical Summary

Problems solved by technology

However, after borax is applied to the soil, borate ions are likely to be lost with rainfall in a short period of time. In the middle and later stages of crop growth, boron application outside the root or multiple times should be applied to meet the physiological needs of crop boron nutrition. Many, low utilization rate, high labor input cost