Controlling agent for preventing flue-cured tobaccos from being forced to ripen at high temperature and application thereof
A technology of prevention and control, high temperature, applied in the field of tobacco cultivation
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Embodiment 1
[0025]5 parts by weight of putrescine hydrochloride, 5 parts of sodium nitroprusside, and 3 parts of sodium sulfite are evenly mixed and dissolved in water to obtain a dilution of the control agent, wherein the quality of the control agent for high-temperature ripening of flue-cured tobacco and water is The ratio is 1:200, and the dilution of the preventive and control agent is sprayed once on each leaf surface of the tobacco plant in the middle and late stages of vigorous growth and the early stage of maturity. Liquid / mu.
Embodiment 2
[0027] 1 part by weight of putrescine, 10 parts of sodium nitroprusside, and 5 parts of sodium sulfite are evenly mixed and dissolved in water to obtain a dilution of the control agent, wherein the mass ratio of the high-temperature ripening control agent to water for flue-cured tobacco is 1 : 500, the dilution of the prevention and control agent is sprayed 1 time in the middle and late stages of the prosperous growth of tobacco plants and each leaf surface in the early stage of maturity, and the spraying interval of two successive times is 8 days, and each consumption is 30kg of dilution of the prevention and control agent / mu .
Embodiment 3
[0029] 10 parts by weight of putrescine, 1 part of sodium nitroprusside, and 2 parts of sodium sulfite are uniformly mixed and dissolved in water to obtain a dilution of the control agent, wherein the mass ratio of the high-temperature ripening control agent to water for flue-cured tobacco is 1 : 500, the dilution of the prevention and control agent is sprayed 1 time in the middle and late stages of the prosperous growth of tobacco plants and each leaf surface in the early stage of maturity, and the spraying interval of twice successively is 10 days, and each consumption is 50kg of the dilution of prevention and control agent / mu .
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