Novel particle zinc fertilizer

Abstract

The invention discloses a particle zinc fertilizer for plants. The particle zinc fertilizer consists of the following compositions in mass portion: 20 to 30 mass portions of zinc sulfate, 25 to 35 mass portions of simple substance sulfur, 20 to 30 mass portions of humic acid, 15 to 25 mass portions of bentonite, and 3 to 5 mass portions of a liquid caking agent. The particle zinc fertilizer consists of a fertilizer core and an envelope, wherein the fertilizer core consists of the zinc sulfate, the simple substance sulfur, the humic acid and the liquid caking agent; and the envelope consists of the simple substance sulfur and the liquid caking agent. The particle zinc fertilizer is a highly-efficient particle zinc fertilizer which is suitable for calcareous soil in north China, and in a culture test of the fertilizer, the particle zinc fertilizer can obviously reduce the pH value of soil by 0.4 to 0.5 unit compared with using common zinc sulfate, and can improve the concentrationof effective zinc in the soil by more than 60 percent.

Description

technical field [0001] The invention relates to a granular zinc fertilizer for plants. Background technique [0002] As an important commercial grain, fruit and vegetable production base in my country, the northern region plays an irreplaceable role in ensuring food security in my country and improving people's living standards. However, in recent years, the phenomenon of crop yield reduction due to the lack of soil available zinc in northern my country has become more and more serious, not only in fruit trees and vegetable production, but also in food crops. This phenomenon is caused on the one hand due to the continuous improvement of crop yields, and the demand for trace element zinc is increasing; Due to poor application effect. [0003] Affected by the high soil pH and Eh values ​​in northern my country, the soil itself contains a large amount of CO 3 2- and HCO 3 - On the one hand, after zinc fertilizer is applied to the soil, it is quickly fixed by the soil to ...

AI Technical Summary

Problems solved by technology

However, these measures all have obvious deficiencies and insurmountable limiting factors

For example, if inorganic zinc is added to solid fertilizer, the soil will be fixed obviously, the activity will be low, and the application effect will be poor; the application of liquid micro-fertilizer will not be widely promoted in the current agricultural production due to factors such as technology and equipment; the high-efficiency organic chelated micro-fertilizer is highly effective , but the production cost is high, and it is impossible to apply it in a large area