Method for cultivating tobacco seedlings by taking vesuvianite particles as floating seedling matrix

Abstract

The invention discloses a method for cultivating tobacco seedlings by taking vesuvianite particles as a floating seedling matrix, which belongs to the technical field of tobacco breeding. The method comprises the following steps of: using a vesuvianite particle material as a seedling matrix, wherein particle sizes and mass ratios of the vesuvianite particle material are that the vesuvianite particles with the particle size of 1mm accounts for 40 percent and the vesuvianite particles with the particle size of between 2 and 5mm accounts for 60 percent; dissolving a universal nutrient liquid fertilizer for floating seedling of flue-cured tobacco, and then fully mixing with the vesuvianite particles, wherein each cube of the vesuvianite particles use 2kg of the universal nutrient liquid fertilizer for the floating seedling of the flue-cured tobacco; loading the vesuvianite particles into a disk and sowing, wherein the water content of the vesuvianite particles is appropriate when no sand is leaked from a bottom hole after the vesuvianite particles are loaded into the disk; placing the disk into a floating seedling pond, wherein water in the floating seedling pond is underground water or well water with the pH value of between 6.0 and 7.0; placing the nutrient fertilizer into the pond with the depth of 12cm according to the using amount of 2kg per cube of water on the day before the sowing; placing the nutrient fertilizer into the pond with the depth of 12cm according to the using amount of 1kg per cube of water on the 40th day after the sowing; controlling the seedling temperature to be between 27 and 32 DEG C and the relative humidity to be between 65 and 80 percent; and operating and managing other floating seedling steps according to the conventional method. The method has the advantages of low seedling and production cost, simplicity and convenience for operation, safety and no pollution and high and thick stems of the tobacco seedlings.

Description

Technical field: [0001] The invention relates to a method for cultivating tobacco seedlings by using volcanic stone particles as a floating seedling raising substrate, belonging to the technical field of tobacco breeding. Background technique: [0002] Volcanic rock, commonly known as pumice, is a very precious small porous stone formed by magma after volcanic eruption. Volcanic rock is rich in potassium, sodium, magnesium, aluminum, silicon, calcium and other dozens of minerals that are easily absorbed by tobacco. And trace elements, because of its light weight and large size, play an irreplaceable role in flue-cured tobacco seedling cultivation. With the further development of floating seedlings, most of the seedling substrate materials used are non-renewable resources, and large-scale promotion year by year will cause the exhaustion of the resources, and the mixed seedling substrate materials have complex formulations, poor chemical stability, high production costs, and p...

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Problems solved by technology

[0003] Through literature search, there is no public report identical with the present invention

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