Cultivation method for Yunnan flue-cured tobacco 97

Abstract

The invention discloses a cultivation method for Yunnan flue-cured tobacco 97. The problems that on conventional cultivation conditions, individual development goes beyond the limit, the group structure excessively grows, the ventilation and light transmission performance is poor, tobacco leaves cannot be really matured, and the quality level, industrial availability and benefit level of the tobacco leaves are low are solved by changing fertilizer and controlling row spacing and planting distance. The individual development level and group development level of the tobacco plants are improved and coordinated, the medium tobacco is cultivated, the tobacco leaves are matured really, the tobacco quality, tobacco planting benefit and industrial availability are improved, the fertilizer cost is reduced, and the cost-saving and income-increasing purposes are achieved.

Description

technical field [0001] The invention belongs to the technical field of tobacco leaf cultivation, and in particular relates to a cultivation method of Yunyan 97 flue-cured tobacco variety. Background technique [0002] In the production of flue-cured tobacco, maturity is the first factor affecting the quality and quality of tobacco leaves. If the maturity is high, the internal chemical components of the tobacco leaves are coordinated, the aroma is good, the aroma is sufficient, the organizational structure is loose, and the industrial usability is good; the appropriate amount of nitrogen application , A well-coordinated individual and group structure is an important factor affecting the maturity of tobacco leaves. The flue-cured tobacco variety Yunyan 97 has been widely promoted in recent years and has the characteristics of high yield, good grade structure and curing characteristics. [0003] In the process of realizing the present invention, the inventors have found that t...

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Problems solved by technology

[0003] In the process of realizing the present invention, the inventors have found that the prior art has at least the following problems: the variety is very sensitive to the amount of nitrogen application and maturity, and in the current cultivation and production practice, it often occurs that the amount of nitrogen application is too large, the distance between plants is too thin, Excessive individual development and unreasonable population structure lead to insufficient maturity of tobacco leaves, resulting in rigid tissue structure of cured tobacco leaves, large cyan content or proportion, low proportion and average price of medium-to-high tobacco, and seriously affect tobacco farmers' tobacco planting benefits and industrial usability

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