Concept · 54 articles
Plant nutrition is a fundamental discipline combining the physiological processes of element uptake, soil science, and agrochemistry. Understanding the mechanisms of nutrient absorption through the soil solution, the role of the soil adsorption complex, and the influence of light and water regime allows both the agronomist and the gardener to take a well-grounded approach to managing crop growth. Knowledge of the classification of mineral elements, the role of secondary nutrients such as sulfur, and the mechanisms of humic acid action is key to increasing yield and plant adaptability to environmental stress factors.
This selection presents materials covering both the theoretical foundations of the science and practical research methods. The reader will become familiar with the history of the development of agrochemistry through the works of D.N. Pryanishnikov, K.K. Gedroyts, and K.A. Timiryazev, and will trace the evolution of concepts regarding photosynthesis and the humus theory of nutrition. The articles detail modern approaches to the study of mineral nutrition, including flow culture and split-root nutrition methods. The proposed block of materials will help systematize knowledge about the interaction of soil, fertilizer, and the biological characteristics of plants for effective agronomic practice.
Agrochemistry For students
The article examines the key role of water regime and light exposure in plant nutrition processes. You will learn how soil moisture and photosynthetic activity determine the intensity of nutrient uptake by roots
Agrochemistry For students
The article reveals Klement Timiryazev's fundamental research in the field of photosynthesis and plant mineral nutrition. The author analyzes how the scientist's discoveries laid the foundation for modern methods of managing crop vital activity
Agrochemistry For students
The article examines the stages of development of the humus theory, tracing the evolution of ideas about soil fertility from ancient concepts to the scientific works of the 18th century. The author analyzes how the understanding of the role of organic matter in plant nutrition changed the agronomic views of that time
Agrochemistry For students
The flowing solution method allows maintaining constant chemical composition and pH of the nutrient medium in vegetation experiments. The article discusses the design of the setup, the elimination of its design flaws, and the optimization of water consumption.
Agrochemistry For students
The article examines key aspects of plant mineral nutrition through the interaction of soil, fertilizers, and climate. Special attention is paid to the dynamic composition of the soil solution and the influence of its concentration on the growth and development of crops
Agrochemistry For students
The article examines the stages of the scientific discovery of photosynthesis and the role of 18th-century scientists in understanding the mechanism of plant carbon nutrition. You will learn how experiments with leaf gas exchange helped form the modern agronomic theory of crop productivity
Agrochemistry For students
The isolated nutrition method allows agronomists to study in detail the processes of nutrient absorption and their movement within the root system. The article describes the practical aspects of setting up experiments: from the preparation of vessels and substrate to the technique of gentle planting of seedlings.
Agrochemistry For students
Humic acids act as effective growth stimulants and natural soil conditioners, contributing to soil health and increasing crop productivity. The article reveals the mechanisms of humate influence on plant physiology and methods for detoxification of the soil substrate
Agrochemistry For students
The soil adsorption complex serves as the main reservoir of nutrients, determining the efficiency of fertilizer retention in the root zone. The article examines the structure of colloids and the mechanisms of cation exchange between the soil and plants
Agrochemistry For students
Sulfur is a key element for the synthesis of plant proteins and the maintenance of photosynthesis. The article examines the forms of sulfur uptake by plants, its influence on enzymatic processes, and the diagnosis of sulfur deficiency symptoms.
Agrochemistry For students
For proper development and completion of the life cycle, plants require 17 chemical elements, the deficiency of which blocks the growth of the crop. The article presents a classification of nutrients according to the level of their accumulation in dry matter: from macronutrients to ultramicronutrients
Soil and tillage For students
The soil adsorption complex acts as a primary reservoir of nutrients, preventing their leaching and providing plants with nutritional elements through the ion exchange mechanism. The article reveals the principles of adsorption, the role of colloidal particles, and the equilibrium dynamics between the solid phase of the soil and the soil solution.
