Special compound fertilizer for selenium-rich tea trees in mountainous regions and method for preparing special compound fertilizer

Abstract

The invention discloses a special compound fertilizer for selenium-rich tea trees in mountainous regions and a method for preparing the special compound fertilizer. The special compound fertilizer comprises, by weight, 10-30 parts of tea leaf residues generated in tea manufacturing, 30-50 parts of urea, 10-20 parts of ardealite residues, 9-18 parts of fly ash, 20-40 parts of pig manure, 8-16 partsof plant ash, 8-16 parts of ammonium phosphate, 3-8 parts of boric acid, 3-8 parts of ferrous sulfate, 10-20 parts of corn stalk, 20-40 parts of silt and 0.2-0.7 part of selenium-rich yeast. The method includes smashing the corn stalk, then uniformly mixing the corn stalk and the tea leaf residues with one another, spraying water and stirring the corn stalk and the tea leaf residues until the humidity reaches 50-60% so as to obtain products A; placing the products A in closed tanks, adding the selenium-rich yeast into the closed tanks and fermenting the products A for 70-80 hours to obtain products B; uniformly mixing the products B, the urea, the ardealite residues, the fly ash, the pig manure, the plant ash, the ammonium phosphate, the boric acid, the ferrous sulfate and the silt with one another to obtain mixtures, and then granulating and drying the mixtures to obtain the special compound fertilizer. The special compound fertilizer and the method have the advantages that the special compound fertilizer is good in fertilizer efficiency and little in soil destruction or tea leaf quality influence, requirements of ecological tea can be met, the selenium content of soil can be increased, and processes for preparing the special compound fertilizer are simple and are low in cost.

Description

technical field [0001] The invention relates to a special compound fertilizer for tea trees and a preparation method thereof, in particular to a special compound fertilizer for mountain selenium-enriched tea trees and a preparation method thereof. Background technique [0002] Tea, (scientific name: Camellia sinensis (L.) O. Ktze.), shrub or small tree, twigs glabrous. Leaves are leathery, oblong or elliptic, with blunt or sharp apex, cuneate base, shiny upper surface, glabrous or pilose at the beginning, serrated edges, petiole glabrous. Flowers white, petiole sometimes slightly longer; sepals broadly ovate to round, glabrous, persistent; petals broadly ovate, base slightly united, back glabrous, sometimes pubescent; ovary densely white haired; style hairless. Capsules 3-globose or 1-2 globose, 1.1-1.5 cm high, with 1-2 seeds per bulb. The flowering period is from October to February of the following year. [0003] The wild species is widely found in the mountainous are...

AI Technical Summary

Problems solved by technology

Therefore, increasing the content of selenium in food will be beneficial to the health of the human body, but the selenium in the plants is all absorbed from the soil at present, and the soil containing selenium is less, and the content is extremely low, which cannot meet the demand