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Flue-cured tobacco float seedling breeding method using novel substrate

A technology of floating seedling raising and substrate, which is applied in the field of floating seedling raising of flue-cured tobacco, can solve the problems of complex operation, difficult management, and high cost of seedling raising, and achieve the effects of good chemical stability, ecological maintenance, and simple substrate formula

Inactive Publication Date: 2014-07-02
云南省烟草公司楚雄州公司
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  • Claims
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Problems solved by technology

[0005] In order to overcome the shortcomings of high seedling cost, complicated operation and difficult management in the above-mentioned existing flue-cured tobacco floating seedling raising technology, the present invention provides a method for cultivating flue-cured tobacco floating seedling raising with an inorganic substrate, which is low in seedling cost, easy to operate and safe in materials easy

Method used

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  • Flue-cured tobacco float seedling breeding method using novel substrate
  • Flue-cured tobacco float seedling breeding method using novel substrate

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Embodiment 1

[0028] Embodiment 1: The sand material used in the inorganic matrix formula of the present invention, no matter it is mountain sand or river sand, the key consideration is ventilation and drainage performance, no pollution, no soil, no impurities, and it should be dried before use. Expanded perlite can be used directly after purchase without disinfection. When using, mix the two according to the proportion of sand accounting for 30% and perlite accounting for 70%, and then add appropriate amount of water and mix well to keep the matrix moist to a certain extent. After it is ready, it can be plated and sown. Seedling-raising tray 2 selects 200 hole polystyrene foam grid seedling-raising trays for use, specification size: 66.5cm * 34cm * 5.5cm. The weight of each plate is 190~220 grams. When loading the tray, fill the well-prepared substrate into the hole 3 of the seedling tray, keep a substrate thickness of 3 to 4 cm above the tray surface, and place the flat end of the subst...

Embodiment 2

[0030]Embodiment 2: The sand material used in the inorganic matrix formula of the present invention, no matter it is mountain sand or river sand, the key consideration is ventilation and drainage performance, no pollution, no soil, no impurities, and it should be dried before use. Expanded perlite can be used directly after purchase without disinfection. When using, mix the two according to the proportion of sand accounting for 40% and perlite accounting for 60%, and then add appropriate amount of water and mix well to keep the matrix moist to a certain extent. After it is ready, it can be plated and sown. The seedling-raising tray 2 selects the 320-hole polystyrene foam lattice seedling-raising tray for use, specification size: 66.5cm * 34cm * 3.5cm. Each plate weighs 150~170 grams. When loading the tray, fill the well-prepared substrate into the hole 3 of the seedling tray, keep a substrate thickness of 3 to 4 cm above the tray surface, and place the flat end of the substr...

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Abstract

The invention relates to a flue-cured tobacco float seedling breeding method using novel substrate. The method includes: the substrate is placed in the cavity of a seedling tray, the whole seedling tray is placed on nutrient solution, and the nutrient solution supplies growth nutrition to a tobacco seedling planted in the cavity of the seedling tray through the bottom hole of the seedling tray; clean water is added to a nursery pond to reach 6-8cm of the depth of the pond after sowing, special seedling breeding fertilizer is added to the water in the pond to mix into nutrient solution A when the emergence rate reaches about 50%, namely the nutrient solution A is used when from emergence to a grand cross period; the seedling tray is allowed to float on the surface of the nutrient solution A; 0.1% humus acid is sprayed for one to two times from the grand cross period to a rooting period of the tobacco seedling; nutrient solution B is used from the rooting period to a seeding formation period; the nutrient solution is kept to reach 8-10cm of the depth of the pond until seedling formation is completed. The seedling breeding method is low in cost, simple to operate, easy and safe in material obtaining, good in tobacco seedling quality, suitable for large-area popularization and application and promising in popularization and application prospect; the seedling breeding cost of each seedling tray is lowered by about 2.6 yuan as compared with that of conventional flue-cured tobacco float seedling breeding, and the decreasing amplitude reaches 46%.

Description

technical field [0001] The invention belongs to the technical field of flue-cured tobacco floating seedling cultivation. Background technique [0002] At present, most of the substrates used in flue-cured tobacco floating seedlings are mixed substrates, which are mainly composed of organic matter and inorganic matter. Generally, materials rich in organic matter (peat charcoal) are used as the main material, and an appropriate proportion of light inorganic materials (such as leech Stone, expanded perlite), its components are generally more than 3 kinds, and the complex formula increases the unsafe use. Due to its complex composition, the mixed matrix is ​​prone to various chemical changes during use, which can easily destroy the balance of the nutrient solution, affect the growth of tobacco seedlings, and even cause dead seedlings. Therefore, general flue-cured tobacco floating seedling raising substrates must be produced by professional manufacturers to ensure product quali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00
Inventor 布云虹陈岗耿少武王跃金李俊柴云霞方亮
Owner 云南省烟草公司楚雄州公司
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