Tobacco floating seedling raising method to reduce the spread of seedbed diseases

Abstract

The invention relates to a tobacco floating seedling raising method capable of reducing disease spread of a seedbed. The method comprises the following steps: A, forcedly disinfecting a tobacco nursery; B, filling a floating plate with a seedling raising matrix; C, performing single-hole monoseeding accurately; D, performing leaf cutting in combination with a residue receiving plate; E, performing ventilation and lighting as early as possible and performing transplantation. Compared with the prior art, the method is low in cost and convenient to operate, the effect of reducing the disease spread is remarkable, the tobacco seedling emergence rate can be increased due to accurate seeding, the thinning and replanting operations are reduced, and the disease spread probability is reduced; the seeding time is accurately determined through actual temperature measurement, so that the situation of too late seedling emergence can be avoided; the leaf cutting frequency is reduced, so that the disease spread probability of the leaf cutting link can be reduced; the residue receiving plate can avoid contact between residue juice and tobacco seedling wounds during leaf cutting to reduce the disease spread probability, and the disinfected residue receiving plate further can disinfect the tobacco seedling wounds; the ventilation and lighting are carried out as early as possible, so that the defect of excessively fast tobacco seedling growth caused by reducing leaf cutting operations can be made up for and the adaptability of tobacco seedlings to the outside can be improved as early as possible.

Description

technical field [0001] The invention relates to the technical field of tobacco seedling cultivation, in particular to a method for floating tobacco seedling cultivation. Background technique [0002] Tobacco seedling cultivation is an important link in the tobacco leaf production process. Under the background of my country's tobacco monopoly system, tobacco planting is strictly carried out in accordance with the contract planting plan, and tobacco planting is a large-scale agricultural production, which is more easily affected by the environment and climate. How to ensure the supply of tobacco seedlings with high quality and quantity has always been highly valued by the tobacco industry. The problem. The quality of tobacco seedlings directly determines the quantity of tobacco planted in the year, and ultimately affects the quantity and quality of tobacco leaves purchased. [0003] At present, floating seedling cultivation is a method commonly used in tobacco seedling cultiv...

AI Technical Summary

Problems solved by technology

When cutting the leaves of the tobacco seedlings in the standard nursery pond, the leaf cutting residue storage bag carried by the leaf cutter needs to be dumped in time. During the process of dumping the residue, the leaf cutter stops operating, and the juice absorbed by the original machine is under gravity. Under the action of dripping, the dripping juice directly contacts the tobacco seedlings with wounds caused by leaf clipping, which promotes the direct transmission of tobacco seedling virus diseases, seriously endangers the quality of tobacco seedlings, and even causes the widespread occurrence of tobacco virus diseases in field tobacco leaves. significant impact on quality and economic returns

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