关键词: 丙二醛, 丙二醛

Abstract:

In order to understand states of tobacco soil fertility and improve the quality of tobacco leaf production in the qianjiang district of chongqing city, stacking diagram was adopted to sample and analyze in main tobacco-growing areas. The research comprehensively evaluated main nutrient of soil type. The results showed that: firstly, tobacco-growing soil was mostly weak acid or neutral, the contents of available phosphorus, available kalium and organic matter were higher. Most soil fertility was satisfied with production requirement of sound tobacco. Secondly, the content of available nitrogen was lower in the soil, it was to meet the demand of planting tobacco. Thirdly, synthetic appraising index of black sandy loam and yellow soil were higher in qianjiang district. Tobacco-growing soil was suitable to the planting and production of sound tobacco. In the tobacco-growing area, the evaluation index of soil type coincided with the local agricultural production, which had a significance to the local flue-cured tobacco production.