Tobacco maturity
Ethephon ripening tobacco leaves can be treated with stems and leaves or post-harvest tobacco sheets in the late growth stage.
Stem and leaf treatment Generally, the whole plant is sprayed. Early and middle smoke, spray the ethephon solution with a concentration of 500-700 mg/kg in the summer sunny days (62.5-87.5 ml of 40% ethephon per acre, 50-100 kg of water), after 3 to 4 days, the tobacco plants Approximately 24 leaves (2 pieces each) can turn from green to yellow, just like natural maturity. For late smoke, the concentration should be increased to 1000-2000 mg/kg, and the light green leaves turn yellow after 5-6 days. You can also prepare a 15% ethephon solution, apply it around the stem of the leaf base, or peel the stem skin longitudinally about 1.5 cm wide and 4 cm long, then apply the ethephon solution for 3 to 5 days. The tobacco leaves above the part can fade and promote yellowing. Ethephon has a duration of efficacy of 8 to 12 days on tobacco, and can also be used twice for the lower and upper leaves during the tobacco growing season.
Post-harvest treatment The freshly harvested tobacco leaves are impregnated with a 500-1000 mg/kg ethephon solution and then baked, and the flue-cured tobacco is yellow in color. In the baking process of the tobacco leaves, a container containing an ethephon solution having a concentration of 450-700 mg/kg is placed in the baking room to allow the self-release of ethylene gas, which can promote the yellowing of the tobacco leaves and increase the level of the tobacco leaves.
Ethephon ripening tobacco leaves can be treated with stems and leaves or post-harvest tobacco sheets in the late growth stage.
Stem and leaf treatment Generally, the whole plant is sprayed. Early and middle smoke, spray the ethephon solution with a concentration of 500-700 mg/kg in the summer sunny days (62.5-87.5 ml of 40% ethephon per acre, 50-100 kg of water), after 3 to 4 days, the tobacco plants Approximately 24 leaves (2 pieces each) can turn from green to yellow, just like natural maturity. For late smoke, the concentration should be increased to 1000-2000 mg/kg, and the light green leaves turn yellow after 5-6 days. You can also prepare a 15% ethephon solution, apply it around the stem of the leaf base, or peel the stem skin longitudinally about 1.5 cm wide and 4 cm long, then apply the ethephon solution for 3 to 5 days. The tobacco leaves above the part can fade and promote yellowing. Ethephon has a duration of efficacy of 8 to 12 days on tobacco, and can also be used twice for the lower and upper leaves during the tobacco growing season.
Post-harvest treatment The freshly harvested tobacco leaves are impregnated with a 500-1000 mg/kg ethephon solution and then baked, and the flue-cured tobacco is yellow in color. In the baking process of the tobacco leaves, a container containing an ethephon solution having a concentration of 450-700 mg/kg is placed in the baking room to allow the self-release of ethylene gas, which can promote the yellowing of the tobacco leaves and increase the level of the tobacco leaves.
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