A kind of flue-cured tobacco seedling raising method with shallow water, advance ventilation and hardening

Abstract

The invention discloses a flue-cured tobacco seedling raising method with shallow water, ventilation in advance and seedling hardening. The seedling raising is improved on the basis of the existing flue-cured tobacco floating seedling raising method. The water depth of the seedling raising nutrient solution is 2.5-3.5 cm; When the seedlings are standard, drain the seedlings separately; when the cross is small, open both sides of the seedling shed from the bottom to 1 / 5 to 1 / 3 for ventilation during the day; when the cross is large, open both sides of the shed from the bottom to 1 / 3 to 1 / 2 for ventilation. The present invention is based on floating seedlings, adopts shallow water, early ventilation seedlings, which is beneficial to save fertilizer, strengthen seedlings, promote roots, and effectively prevent and control moss. Large or small disadvantages, especially suitable for well cellar transplanting.

Description

technical field [0001] The invention relates to a flue-cured tobacco seedling raising method using shallow water, ventilation in advance and seedling hardening, and belongs to the technical field of flue-cured tobacco seedling raising cultivation and application. Background technique [0002] Flue-cured tobacco floating seedling cultivation, as a factory-like tobacco seedling method, has the advantages of fast seedling growth and reduced labor intensity. At the same time, the cultivated tobacco seedlings have the characteristics of good uniformity, well-developed root system, and short return time after transplanting. . Flue-cured tobacco floating seedling raising technology has been vigorously promoted since it was introduced into my country in the 1980s, and has achieved great benefits in the flue-cured tobacco intensive seedling raising technology. [0003] The flue-cured tobacco well-pit seedling transplanting technique is to use a special well-drilling device to drill ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to provide a flue-cured tobacco seedling raising method with shallow water, ventilation in advance and seedling hardening, which can control the vigorous growth of tobacco seedlings caused by high temperature, and can avoid the emaciation of tobacco seedlings caused by low temperature. To provide tobacco seedlings of suitable size for flue-cured tobacco well cellar transplanting, so as to overcome the problem that the growth of seedlings in the existing floating seedling raising technology of flue-cured tobacco is affected by climatic factors and affect normal transplanting