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Flue-cured small strong seedling culture method

A cultivation method and flue-cured tobacco technology, which are applied in the fields of tobacco cultivation, horticultural methods, botany equipment and methods, etc., can solve the problems such as long time for tobacco seedlings to return to seedlings, low root system activity, and reduced survival rate, so as to reduce the incidence rate, root system The effect of increased vitality and increased photosynthetic rate

Inactive Publication Date: 2018-03-30
INST OF TOBACCO ANHUI ACADEMY OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the advance of the transplanting period, the seedling raising mode has basically remained unchanged. When transplanting, the tobacco seedlings are small, the root activity is low, and the stress resistance is poor.

Method used

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  • Flue-cured small strong seedling culture method
  • Flue-cured small strong seedling culture method

Examples

Experimental program
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Effect test

Embodiment 1

[0038] It was carried out in the flue-cured tobacco floating nursery workshop in Zhangxi Town, Dongzhi County, Chizhou City, Anhui Province in the following manner, and the flue-cured tobacco variety was Yunyan 87:

[0039]On December 18 of the first year, the flue-cured tobacco seeds were sown in the nursery tray, which was placed and floated above the nutrient solution in the nursery pond. Before emergence, the flue-cured tobacco seeds are cultivated with water, that is, the initial concentration of the nutrient solution is 0mg / kg, so as to reduce the salt damage to the tobacco seedlings by the minerals in the nutrient solution during the whole seedling raising period, and the height of the nutrient solution is 3-5cm. Water can meet the needs of flue-cured tobacco seed germination and seedling.

[0040] When the flue-cured tobacco seeds in the seedling tray emerge, the initial nitrogen concentration of the nutrient solution is adjusted to 150 mg / kg. Several essential nutrie...

Embodiment 2

[0043] It was carried out in the flue-cured tobacco floating nursery workshop in Zhangxi Town, Dongzhi County, Chizhou City, Anhui Province in the following manner, and the flue-cured tobacco variety was Yunyan 87:

[0044] On December 18 of the first year, the flue-cured tobacco seeds were sown in the seedling tray, and the seedling tray floated above the nutrient solution. Before emergence, the flue-cured tobacco seeds are cultivated with water, that is, the initial concentration of the nutrient solution is 0mg / kg, so as to reduce the salt damage to the tobacco seedlings by the minerals in the nutrient solution during the whole seedling raising period, and the height of the nutrient solution is 3-5cm.

[0045] When the flue-cured tobacco seeds in the seedling tray emerge, the initial nitrogen concentration of the nutrient solution is adjusted to 200 mg / kg. Several main nutrients in the nutrient solution include: N:P 2 O 5 :K 2 O=18:10:15, Cu 2+ : 150mg / kg, Zn 2+ : 250mg...

Embodiment 3

[0048] It was carried out in the flue-cured tobacco floating nursery workshop in Zhangxi Town, Dongzhi County, Chizhou City, Anhui Province in the following manner, and the flue-cured tobacco variety was Yunyan 87:

[0049] On December 18 of the first year, the flue-cured tobacco seeds were sown in the seedling tray, and the seedling tray floated above the nutrient solution. Before emergence, the flue-cured tobacco seeds are cultivated with water, that is, the initial concentration of the nutrient solution is 0mg / kg, so as to reduce the salt damage to the tobacco seedlings by the minerals in the nutrient solution during the whole seedling raising period, and the height of the nutrient solution is 3-5cm.

[0050] When the flue-cured tobacco seeds in the seedling tray emerge, the initial nitrogen concentration of the nutrient solution is adjusted to 150 mg / kg. Several main nutrients in the nutrient solution include: N:P 2 O 5 :K 2 O=18:10:15, Cu 2+ : 150mg / kg, Zn 2+ : 250mg...

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Abstract

The invention relates to the technical field of flue-cured tobacco seedlings, in particular to a flue-cured small strong seedling culture method. The method includes the following steps of sowing flue-cured seeds in a seedling bed to be cultured, adjusting the initial nitrogen concentration of a seedling bed nutrient solution to be 150-200 mg / kg when seedlings emerge, and spraying paclobutrazol onleaf surfaces in the culture process. In combination with other flue-cured floating seedling breeding technologies, the cultured flue-cured seedlings have a true green leaf color, the straw height of3-5 cm and the root dry weight larger than or equal to 0.04 gram per plant, and compared with a conventional seedling breeding mode at the same period, root vitality is improved by 4.85% or above, the net photosynthetic rate of a third visible leaf downward from the top is increased by 17.44% or above, the planting survival rate is increased by 3.16% or above, and the seedling recovery time is shortened by 48 h after transplanting.

Description

technical field [0001] The invention relates to the technical field of flue-cured tobacco seedlings, in particular to a method for cultivating small and strong flue-cured tobacco seedlings. Background technique [0002] Flue-cured tobacco is an annual herb belonging to Solanaceae and an important raw material in the tobacco industry. The high-stemmed and strong seedlings cultivated under the traditional method of flue-cured tobacco seedling cultivation are beneficial to the improvement of the transplanting quality of tobacco seedlings. [0003] The planting system of a region is closely related to ecological conditions. If the seedling raising time affects the transplanting period of flue-cured tobacco, it is likely to affect the planting of other crops. For example, in the flue-cured tobacco production area in southern Anhui Province, the weather is mostly low temperature, rainy and little sunshine from March to April, and then it enters the rainy season. After July, the h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/45A01G7/06
CPCA01G7/06
Inventor 徐经年汪文杰任四海唐经详曹瑗张林兰彦娜李光宇
Owner INST OF TOBACCO ANHUI ACADEMY OF AGRI SCI
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