Special fertilizer for silicon-rich selenium-rich fruit trees and preparation method thereof

Abstract

The invention discloses a special fertilizer for silicon-rich selenium-rich fruit trees. The special fertilizer is prepared from the following raw materials in parts by weight: 30 to 40 parts of silicon ore powder, 5 to 10 parts of sodium fluosilicate, 20 to 30 parts of selenium ore powder, 3 to 8 parts of an activating agent, 2 to 6 parts of ammonium molybdate, 10 to 20 parts of calcium superphosphate, 15 to 20 parts of potassium nitrate and 15 to 20 parts of magnesium sulfate. The preparation method comprises the following steps: (1) weighing the raw materials; (2) uniformly mixing the silicon ore powder with the activating agent, then adding water, conducting grinding into homogenate, carrying out microwave treatment, and performing drying; (3) adding aqua regia into the selenium ore powder, and successively carrying out heating, washing, filtering and drying; and (4) uniformly mixing the raw materials, and conducting granulating to obtain the special fertilizer. The special fertilizer for the fruit trees is rich in silicon fertilizer and selenium fertilizer, can remarkably promote the growth of the fruit trees, is low in cost and easy and convenient to operate, produced fruits are safe in quality and high in organic selenium content, and the special fertilizer has the advantages of being rapid, safe and reliable in selenium supplement and can be widely applied to selenium-deficient areas.

Description

technical field [0001] The invention relates to the technical field of fertilizer production, in particular to a silicon-rich and selenium-rich special fertilizer for fruit trees and a preparation method thereof. Background technique [0002] Silicon, which belongs to a medium element fertilizer, is listed as the fourth largest element fertilizer after nitrogen, phosphorus and potassium by the international soil community. Although silicon is widely distributed in nature, and its content is second only to oxygen, there is almost no free silicon in nature, but most of them are in crystalline state and cannot be absorbed and utilized by plants. For silicon crops, silicon element often becomes the limiting factor of crop growth. [0003] Fruit trees are generally perennial and fixed in a relatively small area for a long time. Fruit trees absorb certain nutrients in the soil repeatedly, resulting in a lack of these nutrients. Quality drops. Especially silicon fertilizer has n...

AI Technical Summary

Problems solved by technology

Nowadays, most of the special fertilizers for fruit trees are mainly water-soluble functional fertilizers. Although they are very effective on fruit trees, there are very few special fertilizers that can really make fruit trees and fruits rich in silicon and selenium.

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