Compound selenium fertilizer for degrading residual pesticide and heavy metals

Abstract

The invention discloses a compound selenium fertilizer for degrading residual pesticide and heavy metals and stimulating plant growth. The mixed inorganic compound selenium fertilizer is used for spraying leaves. The mixed inorganic compound selenium fertilizer is prepared by the following steps: firstly generating selenious acid; then, obtaining selenite; mixing potassium selenite and sodium selenite salt according to a certain proportion; and adding micro calcium ions to obtain the mixed inorganic compound selenium fertilizer which can resist alkali, is prepared according to the needs of different crop types and different pesticides, has a pH value of 7.0-7.8 and the density of 100-500 ppm, degrades the residual pesticide and stimulates the plant growth. The mixed inorganic compound selenium fertilizer is sprayed on plant leaves and collected at different time intervals to achieve the effects of increasing the yield and degrading the pesticide residue and the heavy metals.

Description

Technical field [0001] Belongs to special fertilizers in agricultural fertilizers Background technique [0002] At present, there are many agricultural fertilizers and pesticides. Fertilizers are mainly nitrogen fertilizer, phosphate fertilizer, potash fertilizer, compound fertilizer, biological fertilizer, organic fertilizer, trace element fertilizer, etc., and selenium fertilizer is a new variety, which has the effect of significantly increasing crop production. The application of selenium has been in recent decades. When selenium fertilizer is applied to plants, except for the domestic one that uses mixed slag as the base fertilizer, most of them use selenite as the inorganic selenium fertilizer for foliar spraying. There is one Organic selenium fertilizer can be used for foliar spraying, but it can’t meet alkali and its use conditions are limited. The invention is an inorganic compound selenium fertilizer, which is not afraid of acid and alkali. Because it contains selenium, ...

AI Technical Summary

Problems solved by technology

[0004] The basic fertilizers for crops are usually nitrogen, phosphorus, and potassium. Nitrogen fertilizers are beneficial to the growth of leaves of crops, phosphorus fertilizers are beneficial to the growth of flowers and fruits of crops, and potassium fertilizers are beneficial to the growth of branches and stems of crops. Now they are used for foliar spraying Most of the inorganic selenium fertilizers use selenite, the selenium element has the above-mentioned effect of promoting growth and increasing production, and other elements such as sodium, potassium, calcium, etc. are used to compound and activate selenium, which can be used to spray selenium fertilizer on the leaves , It also increases the ability to degrade heavy metals and residual pesticides, and obtains the perfect combination of selenium fertilizer and degradation of heavy metals and residual pesticides. This problem has never been raised, let alone solved.