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Method for improving maturity of fresh tobacco leaves in field

A technology of fresh tobacco leaves and maturity, which is applied in the field of improving the maturity of fresh tobacco leaves in the field, which can solve the problems of poor uniformity of tobacco leaf maturity, accelerated maturity of tobacco leaves, waste, etc., and achieve the effect of promoting and accelerating the maturity time

Inactive Publication Date: 2021-03-16
KUNMING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the prior art still has the following problems: 1. the time of tobacco leaf maturation can also be accelerated
2. The maturity uniformity of the tobacco leaves in the field is poor. Based on the spraying time, there is generally a difference of 1-3 days between the earliest mature tobacco leaves and the latest mature tobacco leaves in the same machine, which causes difficulties in harvesting. , requiring harvesters to pay special attention to the maturity of the harvested tobacco leaves, which also caused difficulties and waste in mechanized collection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for improving the maturity of fresh tobacco leaves in the field comprises: three days after topping the tobacco, spraying an activation solution on the tobacco leaf surface step by step from bottom to top. Each interval is 4 days, and the amount of spraying per mu is 360g. In terms of parts by mass, the activation solution includes: 1000 parts of water, 18 parts of processed soybeans and 2 parts of urea.

[0022] The soybean treatment is prepared by the following method:

[0023] S1. Prepare commercially available dried soybeans, wash them and soak them in a pretreatment solution for 4 days to obtain soaked soybeans.

[0024] S2. Drain the soaked soybeans and put them into a crusher to crush them to 100 mesh to obtain soybean powder.

[0025] S3. Put the soybean powder into the extraction device, and perform the extraction operation with ethanol-water solvent. After the extraction operation is completed, the solid-liquid separation is performed to obtain a s...

Embodiment 2

[0033] A method for improving the maturity of fresh tobacco leaves in the field comprises: three days after topping the tobacco, spraying an activation solution on the tobacco leaf surface step by step from bottom to top. Each interval is 5 days, and the amount of spraying per mu is 380g. In terms of parts by mass, the activation solution includes: 1000 parts of water, 20 parts of processed soybeans and 3 parts of urea.

[0034] The soybean treatment is prepared by the following method:

[0035] S1. Prepare commercially available dried soybeans, wash them and soak them in a pretreatment solution for 5 days to obtain soaked soybeans.

[0036] S2. Drain the soaked soybeans and put them into a crusher to crush them to 120 mesh to obtain soybean powder.

[0037] S3. Put the soybean powder into the extraction device, and perform the extraction operation with ethanol-water solvent. After the extraction operation is completed, the solid-liquid separation is performed to obtain a s...

Embodiment 3

[0045]A method for improving the maturity of fresh tobacco leaves in the field comprises: three days after topping the tobacco, spraying an activation solution on the tobacco leaf surface step by step from bottom to top. Each interval is 3 days, and the amount of spraying per mu is 350g. In terms of parts by mass, the activation solution includes: 1000 parts of water, 15 parts of processed soybeans and 1 part of urea.

[0046] The soybean treatment is prepared by the following method:

[0047] S1. Prepare commercially available dried soybeans, wash them and soak them in a pretreatment solution for 3 days to obtain soaked soybeans.

[0048] S2. Drain the soaked soybeans and put them into a crusher to crush them to 80 mesh to obtain soybean powder.

[0049] S3. Put the soybean powder into the extraction device, and perform the extraction operation with ethanol-water solvent. After the extraction operation is completed, the solid-liquid separation is performed to obtain a soli...

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PUM

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Abstract

In order to overcome the defects in the prior art, the invention provides a method for improving the maturity of fresh tobacco leaves in the field. The method comprises the step of spraying an activating solution on tobacco leaf surfaces one by one from bottom to top three days after tobacco topping, wherein the time interval is 3-5 days every time, and the spraying amount per mu is 350 g-380 g every time. The activating solution is prepared from the following components including, by mass, 1000 parts of water, 15-20 parts of soybean treatment substances and 1-3 parts of urea. The method can effectively shorten the ripening time of the topped tobacco leaves, and compared with the prior art, the ripening time can be generally shortened by 32 hours or longer. Meanwhile, the method can effectively promote the unification of tobacco leaf ripening time, and the earliest ripening time and the latest ripening time of the tobacco leaves sprayed with the activating solution in the same batch are within 4 hours based on the spraying time.

Description

technical field [0001] The invention belongs to the technical field of planting, and in particular relates to a method for improving the maturity of fresh tobacco leaves in the field. Background technique [0002] Tobacco (scientific name: Nicotiana tabacum L.) is a plant of the genus Nicotiana in the family Solanaceae, an annual or limited perennial herb, all covered with glandular hairs. The roots are strong. Stems 0.7-2 m high, slightly lignified at base. Leaves oblong-lanceolate, lanceolate, oblong or ovate, apex acuminate, base attenuate until the stem becomes ear-shaped and semi-ambulatory. Inflorescence terminal, paniculate, many flowered. Pedicels 5-20 mm long. Capsule ovate or oblong, about as long as persistent calyx. Seeds round or broadly oblong, about 0.5 mm in diameter, brown. It blooms and bears fruit in summer and autumn. [0003] Tobacco is an important raw material of flue-cured tobacco, and obtaining high-quality mature tobacco leaves as soon as pos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/45A01G7/06A01N65/20A01N47/28A01P21/00
CPCA01G7/06A01N47/28A01N65/00A01N65/20A01G22/45
Inventor 黄飞燕叶贤文余磊柯艳果魏环宇薛至勤吴治兴方宇王启宇赵娅红吕怡颖丁昂
Owner KUNMING UNIV