Flue-cured tobacco topping method

Abstract

The invention discloses a flue-cured tobacco topping method. The flue-cured tobacco topping method is characterized in that in a topping process, useless leaves and inflorescences at the upper parts of tobacco plants are removed and useful leaves are kept; and meanwhile, at least two sections of stems at the upper ends of the useful leaves are kept. According to the flue-cured tobacco topping method disclosed by the invention, tender stems at the tops of the tobacco plants are remained, so that the tender stems at the tops of the tobacco plants are organized together to realize certain apical dominance effect, and furthermore, the growth potential of the tobacco plants can be automatically adjusted, the nicotine and special leaf weight of upper leaves are reduced and the sensory quality of the upper leaves is improved.

Description

technical field

[0001] The invention relates to the technical field of crop planting, in particular to a method for topping flue-cured tobacco. Background technique

[0002] Tobacco (Nicotiana tabacum) is an annual herbaceous plant belonging to the Solanaceae Nicotiana family. The root system can synthesize nicotine, and the plant height is 1-3 meters. The stem is erect, and each leaf axil has axillary buds, which can germinate into branches. The leaves are alternate and arranged in a spiral shape. The planting parts of tobacco leaves can be divided into five parts: the lower 2 to 3 leaves are called foot leaves; the upper 3 to 4 leaves are called lower second shed leaves; the middle 6 to 8 leaves are called waist leaves ; The 3 to 4 leaves in the middle are called Shangerpeng leaves; the 3 to 4 leaves at the top of the tobacco plant are called top leaves. The foot leaves and the lower second shed leaves are collectively called the lower leaves, the upper second shed leav...

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