Selenium-rich trace element fertilizer, selenium-rich controlled-release fertilizer, and preparation method and application thereof

Abstract

The invention is suitable for the technical field of agriculture, and provides a selenium-rich trace element fertilizer, a selenium-rich controlled-release fertilizer, a preparation method and applications thereof, the selenium-rich trace element fertilizer comprises the following raw materials by weight: 10-40% of diatomite, 5-30% of magnesium oxide, 5-10% of zinc sulfate, 5-10% of ferrous sulfate, 3-5% of copper sulfate, 3-5% of manganese sulfate, 2-5% of ammonium molybdate, 2-5% of borax, 1-3% of aluminium potassium sulfate, 1-3% of potassium humate, 1-3% of sulfur powder, 5-10% of sodium selenate or sodium selenite, 10-30% of wormwood ferment powder and the balance calcium nitrate. The wormwood ferment powder in the selenium-rich trace element fertilizer has sterilization and insect expelling effects, does not generate adverse effects on human bodies, does not influence the quality of crops, can effectively solve the problems that the preservation time of the crops is shortened andthe crops are easy to decay, and reduces the use of sterilization and insect expelling pesticides at the same time.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a selenium-enriched trace element fertilizer, a selenium-enriched controlled-release fertilizer, a preparation method and application thereof. Background technique [0002] Human food safety determines human health, and the source of human health is soil fertilizer. [0003] At present, there are the following problems in agricultural planting: soil deficiency disease, 73% of the soil in China lacks selenium, resulting in low selenium content in the planted crops. Since selenium cannot be synthesized in the human body, to meet the human body's demand for selenium, it is necessary to supplement selenium every day, and the lack of selenium in crops directly leads to low selenium intake in the human body, and selenium deficiency occurs. [0004] In order to supplement selenium, selenium-enriched pesticides are often sprayed at present. However, with the increasing ...

AI Technical Summary

Problems solved by technology

However, with the increasing use of pesticides, various types of bacteria and insects have developed a certain degree of drug resistance, which affects the quality of crops and has adverse effects on the human body. Problems leading to shortened storage time and perishability