STUDY REGARDING SOIL QUALITY INFLUENCE ON SEVERAL MEDICINAL CROPS
Soils are living and dynamic systems that serve as interface between agriculture and the environment. Soil and water quality influence medicinal plant harvest yield, while the cultivation technologies and processes that take place during the growing season may influence soil quality. The significant decrease in soil quality is evidenced by the negative changes in its physical, chemical, biological properties and when soil is contaminated with organic and inorganic substances. The assessment of soil conservation status is performed by determining key indicators and threshold values, which must be maintained for its normal functioning, this analysis being important to determine trends of deterioration or improvement of soil quality, for various agricultural ecosystems. The main objective of this paper was to determine a series of indicators such as: physical indicators (particle size, humidity, density), chemical indicators (pH, conductivity, N:P:K content), and organic content from soil, in order to evaluate soil and water quality, on a field cultivated with several annual and perennial medicinal plants (basil, marigold, hyssop, lemon balm, lophantus, etc.).
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