Foliar fertilizer for promoting yellowing of flue-cured tobacco and use method

Abstract

The invention relates to a foliar fertilizer for promoting yellowing of flue-cured tobacco and a use method. The foliar fertilizer is prepared from the following components in parts by weight and volume: 0.2 to 0.3 kg / L of monopotassium phosphate, 0.1 to 0.2 kg / L of sodium bicarbonate, 15 to 25mg / L of abscisic acid and 10 to 20mg / L of auxin. According to the technical scheme, the foliar fertilizercan effectively reduce the chlorophyll content in the later period of flue-cured tobacco and increase the carotenoid content, and yellowing of flue-cured tobacco in the later period of field production is obvious. And the ratio of yellow smoke in baking quality is obviously improved, the ratio of green smoke, green smoke and yellow smoke in micro-strip is reduced, and the flue-cured tobacco output value and economic benefit are remarkably increased.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a foliar fertilizer for promoting the yellowing of flue-cured tobacco and its application method. Background technique [0002] In the process of flue-cured tobacco production, due to factors such as excessive pursuit of high yield of tobacco leaves, excessive application of chemical fertilizers, and inadequate field management, the tobacco leaves are difficult to mature, the moisture content of the tobacco leaves is high, the leaves are thick, and they cannot fall yellow normally. Maturity is an important factor affecting the quality of tobacco leaves. It runs through the whole process of tobacco leaf production and processing. Maturity, as the primary quality factor in the national standard of flue-cured tobacco, is the core of tobacco leaf production and quality. Production practice shows that fully mature tobacco leaves have good appearance quality, rich conte...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a foliar fertilizer that promotes the yellowing of flue-cured tobacco, so as to solve the problem in the prior art that the maturity of tobacco leaves is low, the leaves cannot fall yellow normally, and the quality of tobacco leaves after curing is affected.