Foliar fertilizer for blocking heavy metal absorption and preparation method thereof

Abstract

The invention relates to the technical field of heavy metals, and discloses a foliar fertilizer for blocking heavy metal absorption. The foliar fertilizer comprises the following raw materials in parts by weight: 3 to 5 parts of sulphoaluminate cement, 2 to 4 parts of active silica, 10 to 12 parts of quicklime, 5 to 7 parts of chitosan, 4 to 6 parts of dunaliella, 8 to 10 parts of oxalic acid, 5 to 7 parts of shell powder, 11 to 13 parts of flammulina velutipes germ bran, 2 to 3.5 parts of corncob, 12-14 parts of rice bran, 2 to 5 parts of tea seed shell, 7 to 10 parts of dicranum scoparium, 3to 5 parts of areca catechu L., 5-6 parts of palm tree sawdust, 1 to 2 parts of compound enzyme preparation, 3 to 4.5 parts of a compound microbial agent, 1 to 2 parts of a potassium fertilizer and 7to 9 parts of humic acid. The foliar fertilizer for blocking heavy metal absorption and a preparation method thereof have the advantages that by adding potassium dihydrogen phosphate, biochar, EDTA chelated iron, tangerine peel powder, willow bark, alcohol lees and borax, the foliar fertilizer has high fertilizer efficiency and absorption rate and good safety, increases high pollination rate andcrop yield, has no pollution to crops, promotes the increasing of yield and income of the crops and reduces the production cost of farmers, the utilization rate of the fertilizer is increased, and thefertilizer pollution is reduced.

Description

Technical field [0001] The invention relates to the technical field of heavy metals, in particular to a foliar fertilizer that blocks the absorption of heavy metals and a preparation method thereof. Background technique [0002] Heavy metals and many essential nutrient elements affect the functions of both parties. Supplementing nutrients can reduce the toxic effects of heavy metals in crops. Silicon, selenium, nitrogen, phosphorus, potassium, calcium, magnesium and some trace elements are beneficial elements of crops. Using foliar spray as a physiological barrier can not only prevent the accumulation of heavy metals in crops to a certain extent, but also promote crop growth, yield increase, and quality improvement. Foliar fertilization is a supplement for plants to absorb nutrients to compensate Insufficient nutrient absorption by roots, foliar fertilization cannot replace soil fertilization. [0003] At present, the heavy metals on the market cause serious pollution to the land....

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a foliar fertilizer that blocks the absorption of heavy metals and a preparation method thereof, which has the advantages of protecting the environment and solves the serious pollution caused by heavy metals to the land. In severe cases, the food grown in the land Inedible. Soil heavy metal pollution refers to the phenomenon that human activities input heavy metals into the soil, causing the content of heavy metals in the soil to be significantly higher than the background content, and resulting in the deterioration of the quality of the ecological environment. A large amount of untreated wastewater, waste residue and waste gas containing heavy metals are discharged into the soil. Soil environment, which causes soil to be polluted to varying degrees