Cured tobacco seedling-raising sand body matrix, matrix preparation method and seedling raising method using the same
A seedling raising substrate and sand body technology, applied in the field of tobacco seedling raising, can solve the problems of ecological environment damage and higher cultivation cost
Inactive Publication Date: 2009-05-06
YUXI TABACOO COMPANY OF YUNNAN PROVINCE
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Problems solved by technology
[0003] In order to solve the problems of damage to the ecological environment and increased cultivation costs caused by the use of peat in the existing seedling-raising substrates, the present invention provides a sand body substrate for flue-cured tobacco seedling cultivation, and its implementation is as follows:
Method used
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Experimental program
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Embodiment 1
[0024] Example 1: A sand matrix for growing flue-cured tobacco seedlings. The matrix is formed by mixing sand bodies and perlite. The expansion factor of the perlite is greater than 10, and the ratio of the dry matter volume of the sand body to the dry matter volume of the perlite is 1:1. The particle size of the sand body is between 0.5 and 2.5 mm. The selected sand body must have good permeability, good water absorption, no toxic side effects, uniform particles, no pollution, less mud and no impurities. Perlite comes from industrial raw materials.
[0025] The preparation method of the above-mentioned flue-cured tobacco seedling raising sand body substrate is to screen sand bodies with good permeability, good water absorption, uniform particles, and no impurities under normal temperature and pressure. The sand body particle size is between 0.5 mm and 2.5 mm. The body is placed in the sun and laid flat to dry for seven days for disinfection, and then the sand body and perl...
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Abstract
The invention discloses a sand body substrate for culturing tobacco seedlings, a preparation method for the substrate and the application of the preparation method for the substrate, belonging to the technical field of tobacco seedling culturing and aiming at solving the damage to the environment caused by using grass peat in the existing seedling culturing substrate. The invention provides a tobacco seedling culturing sand body substrate which is mixed by sand bodies, vermiculite and perlite. The invention also provides a method for preparing the tobacco seedling culturing substrate, which comprises the steps of screening the sand bodies, sterilization, and mixing the sand bodies, the vermiculite and the perlite. The invention also provides a method for culturing tobacco seedlings. The method comprises the steps of arranging the sand body substrate in a seedling culturing tray, seeding, adding water into a seedling culturing pool, adding nutrition liquid after the tobacco seedlings erupt completely, carrying out thinning, replanting, leaf cutting as well as seedling hardening during the growing period and finally carrying out transplanting. The substrate used for seedling culturing has the advantages of high rate of emergence, high planting percent and low cost; moreover, the grass peat is not used, thus reducing the damage to the ecological environment.
Description
technical field [0001] The invention belongs to the technical field of tobacco seedling cultivation, and in particular relates to a substrate for growing tobacco seedlings, a preparation method of the substrate and a method for cultivating flue-cured tobacco seedlings with the substrate. Background technique [0002] The technique close to the present invention among the existing floating seedling-raising substrates is a seedling-raising substrate mainly composed of perlite, vermiculite and peat. In this matrix formula, peat is an indispensable main raw material. Generally, the proportion in the matrix formula can account for about 30%-50%. Peat generally comes from wetlands with limited reserves. Excessive exploitation of peat will damage wetlands. The ecosystem balance is disrupted. The economic value of peat is relatively high, and the use of peat in the seedling substrate will greatly increase the cost of seedling cultivation. Contents of the invention [0003] In or...
Claims
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Inventor 王文君李煦征邓小刚李春明张恒
Owner YUXI TABACOO COMPANY OF YUNNAN PROVINCE