Tobacco Nitrogen and Potassium Fertilizer Application Cultivation Method

Abstract

The invention particularly relates to a tobacco nitrogen and potassium fertilizer application and cultivation method. The method aims to solve the technical problem that the quality of tobacco leaves is low due to an existing unreasonable tobacco fertilization and cultivation mode. The method mainly includes the following steps that 1, special tobacco fertilizers ranging from 340-380 kg / hm<2> in amount are applied while the land is leveled, and then furrowing and ridging are conducted; 2, tobacco transplanting and membrane covering are conducted; 3, dressing of the special tobacco fertilizers ranging from ranging from 145-160 kg / hm<2> in amount is conducted in the tobacco resettling stage; 4, dressing of potassium nitrate ranging from 32-43 kg / hm<2> in amount is conducted three times from the tobacco vigorous growing stage to the doming stage, the potassium nitrate is blended with water to be sprayed to the roots of tobacco plants every other week, and then soil covering is conducted. According to the method, the fertilizing amount and the fertilizing mode are matched with the nutrient requirement law in the plant growing process, the tobacco pant nutrient condition can be remarkably improved, the tobacco leaf grade structure can be adjusted, the tobacco leaf quality and industrial availability can be improved, the nitrogen and potassium fertilizer investment is saved, the production cost is lowered, the soil environmental capacity is considered as well, and environmental pollution is avoided.

Description

technical field [0001] The invention relates to a crop cultivation method, in particular to a tobacco nitrogen and potassium fertilizer application cultivation method suitable for the plain area of ​​Henan Province. Background technique [0002] The plain area of ​​Henan Province is one of the main tobacco producing areas in my country. Its soil and climate characteristics endow the flue-cured tobacco in this area with a unique flavor. Pure, moderate strength, and strong compatibility, it is an indispensable raw material for Chinese-style cigarette formulas, and occupies a very important position in my country's tobacco production. [0003] However, in the past 20 years, due to changes in land use patterns, planting systems, and fertilization systems in this area, soil nutrient imbalances and disease aggravation have posed a greater threat to tobacco leaf production, and the characteristics of tobacco leaves in this area have gradually lost, mainly reflected in : The grade s...

AI Technical Summary

Problems solved by technology

[0003] However, in the past 20 years, due to changes in land use patterns, planting systems, and fertilization systems in this area, soil nutrient imbalances and disease aggravation have posed a greater threat to tobacco leaf production, and the characteristics of tobacco leaves in this area have gradually lost, mainly reflected in : The grade structure of tobacco leaves is unreasonable, the proportion of top and medium tobacco is low; the appearance quality of tobacco leaves is not mature enough, the contents of the lower leaves are not sufficient, the leaves are thin, the structure of the upper leaves is tight, the leaves are thicker, the structure is rough, the color is darker, industrial The value is reduced; there are "four highs and four lows" in the internal quality of tobacco leaves, such as high nicotine content, high chlorine content, high starch content, high miscellaneous gas content, low potassium content, low sugar content, low aroma, and low oil content.

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