Tobacco Research Institute of Hubei Province

Hubei Institute of Tobacco Science

Kaixiao Fan

Jinpeng Yang

Chunlei Yang

Jun Yu

Youlun Fan

Yong Yang

Gang Liu

Xin Wang

Xiongfei Rao

Zongping Li

Zhenxin Wu

Yanjun Ma

Guangjiong Qin

Yiyang Zhang

Yongle Wei

Candong Deng

Shu Yang

Mei Yang

Jun Zhou

Zhilong Bie

Yuan Huang

Baoming Qiao

Wenchang Huang

Yulei Zhao

Xianbao Deng

Sicheng Liu

Yu Song

Jiazhen Chen

Wenzhang Qin

Chuanzong Li

Liguang Chai

Ruoshi Bai

Yong Rao

The present disclosure provides a supplemental lighting method for vertical multi-layer cultivation of wrapper tobacco leaves, including the following steps: providing multi-layer vertical facilities, facilities including at least one cultivation rack having a plurality of layers; and providing supplemental lighting systems to each rack layer. For each rack layer the light intensity and light quality provided by the corresponding supplemental lighting system are set respectively according to a determined growth phase of the tobacco leaves during the cultivation process. The process includes cultivation of tobacco leaves through growth phases comprising a clumping period, a vigorous growth period, and a maturity period. During the clumping period, the light intensity provided comprises a first light intensity setting. During the vigorous growth period, the light intensity provided comprises a third light intensity setting. During the maturity period, the light intensity provided comprises a second light intensity setting.

Supplemental lighting method for vertical multi-layer cultivation of wrapper tobacco leaves

The present disclosure discloses a tobacco leaf foliar spraying substance for reducing harmful ingredients in cheroot, a method for reducing carcinogenic components in flue-cured tobacco leaves and flue-cured tobacco shreds. The tobacco leaf foliar spraying substance contains a lotus leaf extract, the harmful chemical ingredients comprise N-nitrosonornicotine, 4-(N-methyl-nitrosamine)-1-(3-pyridinyl)-1-butanone, N-nitrosoanabasine and N-nitrosoanatabine. Foliar spraying is performed on a fertile field by using the lotus leaf extract before tobacco leaves are harvested and modulated, which not only significantly promotesagronomic characters and economic traits of tobacco and alleviates tobacco leaf browning but also effectively reduces harmful chemical ingredients unique to tobacco leaves, such as nitrosamine and nicotine.

Tobacco leaf foliar spraying substance and method for reducing harmful ingredients in cheroot and tobacco shreds

One aspect of the invention provides an agent for reducing nicotine and harmful components in tobacco leaves for use in the field cultivation of tobacco. In one embodiment, the agent contains (in a weight percentage): salicylic acid 0.005-0.16%, naphthaleneacetic acid 0-0.003%, indoleacetic acid 0-0.015%, and clean water added to 100%. The composition can significantly reduce nicotine and harmful components in tobacco leaves by applying it to tobacco plant in top pruning period of tobacco. The combination of salicylic acid, naphthaleneacetic acid and indoleacetic acid provides synergic effect for reducing nicotine. The nicotine-reducing agent also can result in a yield increase and improve the aroma of tobacco.

Agent for reducing nicotine and harmful components in tobacco leaves for use in field cultivation of tobacco

Growing community of inventors

Wuhan, China

Kaixiao Fan