Fertilizer special for continuous cropping flue-cured tobacco, and its preparation method and application

Abstract

The invention discloses a fertilizer special for continuous cropping flue-cured tobacco, and its preparation method and application. The fertilizer is prepared from 10-80% of waste from auricularia production, 10-30% of humic acid raw material, and 10-20% of humus soil. The fertilizer selects the natural material with a promotion effect on plant roots, extracts out components for promoting the development of roots, and is added with a certain matrix beneficial for plant growth, which can remarkably alleviate the obstacle problem of continuous cropping flue-cured tobacco. By applying the special fertilizer, obstacle of continuous cropping flue-cured tobacco can be solved or alleviated, the early development capacity of continuous cropping flue-cured tobacco can be improved, the yield and quality of continuous cropping flue-cured tobacco can be improved significantly, and the income of tobacco growers can be increased.

Description

technical field [0001] The invention relates to a fertilizer and its preparation method and application, in particular to a special fertilizer for double crop flue-cured tobacco, its preparation method and application. It belongs to the field of fertilizer production and processing. Background technique [0002] The flue-cured tobacco in foreign high-quality tobacco leaf production countries adopts the crop rotation system, and the crop rotation time is 3-4 years. Flue-cured tobacco crop rotation has the following advantages: (1) It can balance the supply of soil nutrients, which is conducive to the balance of nutrients in the tobacco leaves, and the quality of tobacco leaves is better; (2) It can effectively control diseases and reduce the risk of tobacco leaf production; (3) The tobacco plants are well developed, Appropriate output and high-quality tobacco leaves can be obtained, and the benefits are increased. However, due to the influence of land policy and land area i...

AI Technical Summary

Problems solved by technology

[0005] The current treatment methods for double-cropping flue-cured tobacco are mainly to increase the amount of nitrogen fertilizer, deep loosening, and promote the development of flue-cured tobacco. Most of the effects are not obvious. Among them, increasing the amount of nitrogen fertilizer has the following shortcomings: (1) flue-cured tobacco is sensitive to nitrogen fertilizer, and sufficient nitrogen fertilizer supply is required in the early stage. However, when the tobacco leaves are flat-topped, the soil nitrogen supply is required to be significantly reduced or stopped. Due to the increase of nitrogen fertilizer, the nitrogen supply of the soil often increases when the tobacco leaves mature, which is contradictory to the nitrogen demand of flue-cured tobacco, which affects the field maturity of tobacco leaves. Especially when the amount of nitrogen fertilizer is too high, it will cause the tobacco leaves to grow green and mature late, and reduce the quality of the tobacco leaves; (2) due to the increase of the amount of nitrogen fertilizer, in the mature stage of the tobacco leaves, it is easy to be infected with wildfire disease and red spot disease, resulting in reduced production, or seriously affecting the quality of the tobacco leaves (3) Cigarette industry proves that excessive nitrogen fertilizer usage increases nicotine content and aggravates miscellaneous gas

Increased stimulation is not conducive to the needs of the cigarette industry; (4) tobacco farmers need to replace flue-cured tobacco with other land, and increase the input of 100 yuan per mu, which increases production costs

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