Segmented-absorption fully-degradable coated tobacco rod fertilizer and preparation method thereof

Abstract

The invention discloses a segmented-absorption fully-degradable coated tobacco rod fertilizer. The rod fertilizer is sequentially divided into an early-stage fertilizer, a middle-stage fertilizer and a later-stage fertilizer from outside to inside, a first full-degradable material coating is arranged outside the early-stage fertilizer, a second full-degradable material coating is arranged between the early-stage fertilizer and the middle-stage fertilizer, and a third full-degradable material coating is arranged between the middle-stage fertilizer and the later-stage fertilizer; the disintegration time of the first full-degradable material coating is 1-2 days after planting, the disintegration time of the second degradable coating material is 25-30 days after planting, and the disintegration time of the third degradable coating material is 55-60 days after planting. All the degradable material coatings are completely degraded into CO2 and H2O after being disintegrated for 1-2 months. According to the method, base fertilizer, primary topdressing and secondary topdressing in a traditional fertilization mode are separated by adopting different full-degradable material coatings, and the early-stage fertilizer, the middle-stage fertilizer and the later-stage fertilizer are gradually dissolved and absorbed after application, so that the precise requirements of tobacco on the fertilizer in each growth stage are met.

Description

technical field [0001] The invention relates to a fully degradable coated cigarette rod fertilizer absorbed in stages and a preparation method thereof, belonging to the technical field of tobacco fertilizers. Background technique [0002] In tobacco planting, the traditional fertilization mode adopts the method of separate application of base fertilizer and top dressing. This fertilization mode has low fertilization efficiency and high fertilization cost, and the income of flue-cured tobacco planting is low. In order to solve the problems existing in the traditional fertilization mode, especially the problem of low fertilization efficiency, there are one-time whole element fertilization technologies such as slow-release coated fertilizers, water-soluble fertilizers, and base-topdressing integrated fertilizers. These fertilizers combine base fertilizer and topdressing fertilizer. . However, the applicant has found in actual experiments that the above technologies cannot meet...

AI Technical Summary

Problems solved by technology

[0002] In tobacco planting, the traditional fertilization mode adopts the method of separate application of base fertilizer and top dressing. This fertilization mode has low fertilization efficiency and high fertilization cost, and the income of flue-cured tobacco planting is low.

In order to solve the problems existing in the traditional fertilization mode, especially the problem of low fertilization efficiency, there are one-time whole element fertilization technologies such as slow-release coated fertilizers, water-soluble fertilizers, and base-topdressing integrated fertilizers. These fertilizers combine base fertilizer and topdressing fertilizer.

However, the applicant found in actual experiments that the above technologies cannot meet the precise needs of tobacco for fertilizers at each growth stage, which in turn will affect the growth quality of tobacco leaves

Images