Concept · 16 articles
Particle size distribution is a fundamental characteristic of soil that determines the ratio of mineral particles of different sizes. The physical properties of the soil—its water-holding capacity, aeration, and ability to retain nutrients—directly depend on this indicator. Understanding the particle size distribution is necessary for an accurate assessment of soil fertility and for choosing an optimal strategy for the cultivation of agricultural crops, as the soil structure forms the environment for the plant root system and influences the efficiency of fertilizer application.
This collection brings together materials that reveal the process of mineral soil formation through rock weathering and the classification of soils by their composition. Readers will find articles here on key agrophysical and chemical indicators, methods for increasing soil fertility, acidity regulation, and maintaining a non-deficit humus balance. The selection also includes materials on agrochemistry: from the fundamentals of crop nutrition for specific crops, such as sugar beet, vegetables, and potatoes, to methods for calculating nutrient balance and the history of the development of the national scientific school in the works of D.N. Pryanishnikov and K.K. Gedroyts.
Crop production For students
The particle-size distribution of soil determines its ability to retain nutrients and soil moisture. The article examines the characteristics of various soil types and the influence of their structure on the choice of tillage practices
Agrochemistry For students
The article describes the mechanisms of rock weathering and their transformation into loose soil components. You will learn how the interaction of physical, chemical, and biological factors forms the mineral basis of the future soil
Agrochemistry For students
The article discloses the agrochemical requirements of sugar beet regarding soil structure, density, and acidity. Data on the removal of primary nutrients and their effect on harvest quality are also presented.
Agrochemistry For students
The article reveals the principles of fertilizer classification by origin, composition, and mode of action on soil. You will learn how the agrochemical properties of preparations affect plant nutrition and soil structure
Agrochemistry For students
To increase the yield and quality of vegetables, it is necessary to regulate the composition of fertilizer depending on the biology of a specific crop and soil conditions. The article provides information on the chemical composition of vegetable plants and potatoes, which is important for the proper management of agricultural crop nutrition
Agrochemistry For students
Calcium cyanamide is an effective nitrogen-calcium fertilizer for acidic soil with a prolonged effect. The article reveals its application rate, safety measures for personnel, and the mechanisms of nitrogen transformation in the soil environment
Agrochemistry For students
Sulfur is a critical nutrient, the reserves of which in soils are rapidly depleting due to the intensification of agriculture. The article examines the causes of sulfur deficiency, current methods for diagnosing soil availability, and the biological characteristics of this element's uptake by plants.
Agrochemistry For students
The article examines the specifics of calcium fertilizer application on acidic soils of Russia. A classification of agricultural crops based on their sensitivity to soil reaction and the need for liming is presented
Agrochemistry For students
The article reveals a comprehensive approach to overcoming negative soil conditions that limit field productivity. The material presents a systematization of limiting factors and effective reclamation techniques for restoring soil fertility and the ecological state of the soil
Agrochemistry For students
Intensive agriculture inevitably leads to a decrease in soil organic matter content. The article examines the causes of humus degradation and a complex of agricultural practices that allow for the restoration of the organic matter balance in modern farming conditions.
Agrochemistry For students
Regular monitoring of the nutrient cycle allows an agronomist to precisely adjust fertilizer application. The article explains how to account for nutrient sources and losses due to erosion for calculating balanced soil nutrition
Agrochemistry For students
The article examines the process of forming the domestic agrochemical school and creating the production base for fertilizers in the first half of the 20th century. The reader will learn about the scale of the first field trials and the evolution of specialized scientific journals
