Topic · 220 articles
Chemical composition of soils and plants, nutrient cycling, properties of fertilizers and their interaction with soil. Methods of agrochemical survey, interpretation of analyses, and development of fertilization systems based on them.
3 min read For students
The composition of exchangeable cations determines the physical state of the soil and nutrient availability for plants. The article examines the factors influencing cation exchange capacity and the formation of an agronomically valuable structure of arable land.
5 min read For students
The article examines the patterns and mechanisms of anion uptake by the soil adsorption complex. The author analyzes the influence of colloid charge and chemical properties of the medium on adsorption, and explains the processes of negative sorption of nitrates and chlorides
9 min read For students
The reaction of the soil solution determines plant growth conditions, fertilizer efficiency and the intensity of microbiological processes. The article reveals the nature of soil acidity, classifies its types into active and potential, and explains their influence on the state of the soil complex.
9 min read For students
The article describes the forms of nitrogen in the soil and the mechanisms of their transformation under the influence of microflora. Data on the reserves of organic and mineral nitrogen depending on the soil type and humus content are provided
10 min read For students
The article describes the geochemical properties of aluminum, its content in rocks, and patterns of biogeochemical cycling in various landscapes. It examines the mechanisms of aluminum mobility depending on soil composition and environmental conditions
9 min read For students
Manganese is a chemically active element whose availability to crops depends directly on soil conditions. The article explains the main forms of this micronutrient in the soil and the effect of pH on its mobility
