Method for preventing early floriation and few leaves of flue-cured tobacco

Abstract

The invention relates to method to prevent the baking tobacco from being early blossoming and oligophyllous. The method can be applied to the single file and high border check tobacco fields which adopts culture under-glass with ground film. When more than 80% temperature records are over 8deg.C, dig deep caves on the covered border check and transplant the tobacco seedling to the round caves which has a depth of 10-12cm and diameter of 15cm, while making sure the tobacco growth tone at a depth of more than 5cm. The invention can not only prevent the baking tobacco from being early blossoming and oligophyllous it can also extend its field growing time by 10-20d to make sure the growing time is more than 120d. Besides, the tobacco won't compete with the post crops so they can be sowed on time and gain a good harvest.

Description

technical field [0001] The invention relates to a method for improving the output and quality of leaf crops, in particular to a method for preventing the abnormal physiological phenomenon of early flowers and few leaves of flue-cured tobacco planted in spring. Background technique [0002] Flue-cured tobacco (spring tobacco) is an important economic crop in agricultural production. Its commodity value is realized by leaves. Some varieties of tobacco leaves can have as many as 25 or more leaves, and some varieties of tobacco leaves can have up to 20 leaves. The number of leaves directly affects its yield and quality. Due to the relationship between leaf type and quality, the quality of few-leaf varieties is better than that of multi-leaf varieties, but once the few-leaf varieties encounter the harsh climate with low temperature and little sunshine, their physiological functions will be disordered, and the early vegetative growth will be advanced to reproductive growth. Durin...

AI Technical Summary

Problems solved by technology

Due to the relationship between leaf type and quality, the quality of few-leaf varieties is better than that of multi-leaf varieties, but once the few-leaf varieties encounter the harsh climate with low temperature and little sunshine, their physiological functions will be disordered, and the early vegetative growth will be advanced to reproductive growth. During the growth period, it will bloom and bear fruit, and the number of leaves will decrease accordingly, and the leaves are relatively small, that is, the phenomenon of early flowers and few leaves will directly affect its yield and quality.

[0003] The traditional and preventive method is to postpone the transplanting period of flue-cured tobacco (spring tobacco) to avoid the influence of low temperature and low light. However, due to the particularity of our country's climate characteristics, delaying transplanting will affect the insertion period of flue-cured tobacco (spring tobacco) crops. As a result, the subsequent crops encounter frost or frost weather during the maturity period, and the subsequent crops cannot mature normally, resulting in reduced production and harvest

In this way, in agricultural sowing, it often occurs that the previous crops are ripe and the latter crops are not ripe, or the latter crops are mature and the previous crops are not ripe, which directly affects the economic and social benefits of agricultural production.

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