Method for improving quality of flue-cured tobacco in red soil

Abstract

The invention discloses a method for improving quality of a flue-cured tobacco in red soil. An oxygen fertilizer and silicon, calcium, magnesium, phosphorus and potassium fertilizers are fertilized into a tobacco field of which soil is red soil; the application amount of the oxygen fertilizer is 1.0-2.0g per plant; the application amount of the silicon, calcium, magnesium, phosphorus and potassium fertilizers is 50-100kg per mu; the application method comprises the following steps: 1) sampling soil, and testing a pH value; and 2) determining to fertilize different amounts of oxygen fertilizer, and silicon, calcium, magnesium, phosphorus and potassium fertilizers according to different pH values. According to the method for improving the quality of the flue-cured tobacco in the red soil, the ventilation condition of the soil is improved, the moisture and fertilizer preservation capacities of the soil are enhanced, meanwhile, the rhizosphere soil reducing substances can be reduced, the effects of increasing temperature, increasing oxygen and promoting rooting of tobacco seedlings are achieved, the total nitrogen content of the tobacco leaves can be increased, the harmony of chemical components of the tobacco leaf is improved, especially reduction of nicotine is facilitated, the yield and the quality of the tobacco leaves are improved, and the method is especially suitable for large-area popularization and application on the tobacco field with the red soil.

Description

[0001] technical field [0002] The invention relates to the production and management of flue-cured tobacco by using an oxygen fertilizer and silicon calcium magnesium phosphorus potassium fertilizer, in particular to a method for improving the quality of flue-cured tobacco in red soil. [0003] Background technique [0004] The red soil area is an important agricultural product production base in my country. In most of the red soil tobacco areas in China, due to the large number of people and the lack of land, the tobacco land has been cultivated continuously for a long time, so it is difficult to implement fallow cultivation. Moreover, due to the one-sided pursuit of economic benefits by some tobacco farmers, they often carry out predatory planting in land use, neglecting the maintenance of soil fertility and arableness for a long time. As a result, the soil in some red soil tobacco areas in my country is compacted, the aggregate structure is destroyed, and the arableness...

AI Technical Summary

Problems solved by technology

Moreover, due to the one-sided pursuit of economic benefits by some tobacco farmers, they often carry out predatory planting in land use, neglecting the maintenance of soil fertility and arableness for a long time. As a result, the soil in some red soil tobacco areas in my country is compacted, the aggregate structure is destroyed, and the arableness is poor. , Nutrient deficiency or imbalance in the soil (shown as excess of N, P, K and other large elements, but insufficient content of medium and trace elements, low activity of organic matter) and other phenomena

The deteriorated red soil environment is not conducive to the normal growth of tobacco plants and the improvement of tobacco leaf yield and quality, and at the same time leads to the aggravation of tobacco leaf diseases and insect pests

[0005] When flue-cured tobacco is planted on red soil tobacco land, during the transplanting period of tobacco leaves, there will be excessive rainfall, long-term low temperature, and increased reducing substances in the soil, which will lead to slow growth and development of tobacco leaves after transplanting and affect the quality of flue-cured tobacco. At the same time, the existing research on red soil Most of the improved technical methods are single use of lime. Although this method can achieve the effect of acid-base neutralization to a certain extent, it is not very effective in improving the yield and quality of tobacco leaves; while other soil conditioners have a high cost. question