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The pH of the soil affects the activity of soil microorganisms and has a close relationship with the formation and transformation of soil nutrients. It also has a very important impact on the growth of flue-cured tobacco, and especially has a far-reaching impact on the formation of flue-cured tobacco yield and quality. At present, there have been reports on the relationship between soil pH and soil nutrients, and their effects on the chemical composition of flue-cured tobacco. However, few studies have systematically analyzed the characteristics of soil pH distribution and its relationship with soil nutrients. Based on the general survey of soil nutrient content in Hunan tobacco growing area, this study focused on analyzing the characteristics of soil pH distribution and its relationship with soil nutrients, in order to provide reference for balanced fertilization in tobacco fields. The pH of the soil was measured using an in situ soil pH recorder to accurately reflect soil problems.
The soil nutrient indicators measured by an in situ soil pH recorder include: pH, organic matter, total nitrogen, available phosphorus, available potassium, available zinc, available copper, available manganese, available iron, water soluble chlorine, exchangeable calcium, exchangeable magnesium, etc. 12 items.
The relationship between chemical composition and organic matter content of flue-cured tobacco, available phosphorous content in flue-cured tobacco and available phosphorus content in flue-cured tobacco, and zinc content in flue-cured tobacco and available zinc content in soil were analyzed. In this study, soil pH distribution characteristics in Hunan tobacco-growing area were analyzed using an in situ pH recorder. And the relationship with soil nutrients. The direct influence of soil pH on the growth and development of tobacco was as follows: soil pH was too high (>9.0) or too low (<4.0) to damage the roots and affect the root absorption function; the indirect effect was the shape of soil pH-restricted nutrient elements. The concentration in the soil. Flue-cured tobacco is highly adaptable to soil pH, but it is generally believed that the quality of flue-cured tobacco is best within a certain pH range.
The soil nutrient indicators measured by an in situ soil pH recorder include: pH, organic matter, total nitrogen, available phosphorus, available potassium, available zinc, available copper, available manganese, available iron, water soluble chlorine, exchangeable calcium, exchangeable magnesium, etc. 12 items.
The relationship between chemical composition and organic matter content of flue-cured tobacco, available phosphorous content in flue-cured tobacco and available phosphorus content in flue-cured tobacco, and zinc content in flue-cured tobacco and available zinc content in soil were analyzed. In this study, soil pH distribution characteristics in Hunan tobacco-growing area were analyzed using an in situ pH recorder. And the relationship with soil nutrients. The direct influence of soil pH on the growth and development of tobacco was as follows: soil pH was too high (>9.0) or too low (<4.0) to damage the roots and affect the root absorption function; the indirect effect was the shape of soil pH-restricted nutrient elements. The concentration in the soil. Flue-cured tobacco is highly adaptable to soil pH, but it is generally believed that the quality of flue-cured tobacco is best within a certain pH range.
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