A flue-cured tobacco cultivation method that can effectively improve the field tolerance of tobacco plants

Abstract

The invention discloses a flue-cured-tobacco cultivation method effectively improving the tobacco-plant field cultivation resistance. The method includes the steps of sand mixing and deep tillage, rotary tillage ridging, organic-fertilizer stirring in a pond, slow release fertilizer basal applying and foliage dressing. According to the method, the modes that sand is mixed into a tobacco field, andfarmyard manure is returned to the field are used in cooperation with soil deep tillage, the soil bulk density can be effectively reduced, the soil porosity is increased, and therefore tillage-layersoil physical characteristics are improved; meanwhile, the effect on increasing the mass water content of tobacco field soil is achieved, early growth and quick tillering in the earlier period of birth of flue-cured tobacco are facilitated, the improvement effect on the soil mass water content of a subsurface stratum and a deep layer of soil is particularly remarkable, growth development of the prosperous growth period of the flue-cured tobacco is promoted, the mature period and the field growth period of tobacco leaves are prolonged, and the tobacco-plant field cultivation resistance is effectively improved; growth development of roots of the flue-cured tobacco is facilitated, the fresh weight of the roots of the flue-cured tobacco is increased, vertical rooting of the roots of the flue-cured tobacco is promoted, spatial configurations of the roots of the flue-cured tobacco are improved, the root activity of the mature period is improved accordingly, and the method has the remarkableeffect on improving the tobacco-plant field cultivation resistance.

Description

technical field [0001] The invention belongs to the technical field of flue-cured tobacco cultivation, and in particular relates to a method for cultivating flue-cured tobacco that can effectively improve the field tolerance of tobacco plants. Background technique [0002] Improving the field tolerance of flue-cured tobacco is the key to producing high-quality flue-cured tobacco, which has a significant impact on improving the grade, output value, chemical quality and appearance quality of flue-cured tobacco. Compared with flue-cured tobacco from high-quality tobacco areas such as Zimbabwe and Brazil abroad, the field growth period of flue-cured tobacco in my country is shorter. The field growth period of flue-cured tobacco in Zimbabwe is generally 135-150 days, while the field growth period of flue-cured tobacco in my country is only 115-125 days. [0003] Factors restricting the growth period of flue-cured tobacco in my country, in addition to climatic factors, soil healt...

AI Technical Summary

Problems solved by technology

[0003] Factors restricting the growth period of flue-cured tobacco in my country, in addition to climatic factors, soil health in tobacco fields is another key factor, especially closely related to soil permeability. Tobacco field soil smoke has problems of heavy viscosity, large volume, shallow plow layer, compact structure, poor air permeability and nutrient imbalance, which often affect the field tolerance of flue-cured tobacco; tobacco fields with insufficient nutrition tolerance will not only lead to low root activity of flue-cured tobacco in the mature stage , shorten the field growth period of flue-cured tobacco, and even affect the yield and quality of tobacco leaves seriously

Images