Concept · 13 articles
Nitrogen is a key plant nutrient; however, its efficient uptake is limited by the physicochemical processes of transformation in the soil. The losses of this element during fertilizer application reduce yield and the economic return on agrotechnical practices. Understanding the dynamics of the nitrogen regime, as well as the factors behind its leaching and volatilization, is critically important for practicing agronomists and specialists striving to optimize crop nutrition and maintain soil fertility.
This collection brings together scientific and applied materials that reveal ways to increase the efficiency of nitrogen fertilizers. The articles examine the mechanisms of using nitrification inhibitors, methods for calculating nutrient balance, and the specifics of using various types of fertilizers: from ammonium sulfate and ammonium nitrate to organic forms, including liquid manure and poultry manure. Readers will find information on fertilizer mixing technologies, regulations for their application in crop rotation, and the impact of nitrogen compounds on the agroecosystem. The materials also touch upon the theoretical foundations of domestic agrochemistry, which allows for a systematic approach to solving the problems of rational management of nitrogen metabolism at the field level.
Agrochemistry 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
Agrochemistry For students
Nitrogen fertilizer is critical for yield; however, its excess leads to nitrate accumulation in produce. The article examines factors of nitrogen migration in soil, health risks, and maximum permissible intake levels
Agrochemistry For students
Poultry manure is a valuable organic fertilizer, superior to manure in the concentration of nutrients. The article examines the chemical composition of manure from various poultry species and the dependence of its quality on the livestock management method
Agrochemistry For students
Mixing mineral fertilizers allows for the flexible selection of nutrient composition for specific fields. The article reveals the basic rules for component compatibility and the requirements for raw material humidity to obtain high-quality fertilizer mixtures.
Agrochemistry For students
Ammonium nitrate is an effective nitrogen fertilizer providing the crop with rapid nutrition. The article examines in detail the properties of the substance, its behavior in the soil, and storage requirements
Agrochemistry For students
Ammonium sulfate is a highly effective nitrogen-sulfur fertilizer, in demand for irrigated agriculture. The article reveals the features of its production, composition, and safety rules for soil application
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 presents the fertilizer systems developed by A.I. Simakin for field crop rotations in the Krasnodar Territory. The material contains approximate schemes for the application of nutrients for main crops, taking into account the rotation and zonal features of the soil
Agrochemistry For students
The use of nitrification inhibitors allows for a significant reduction in non-productive losses of nitrogen fertilizer. These preparations suppress nitrifying microorganisms, keeping nitrogen in the ammonium form and ensuring the environmental safety of agrotechnologies
Agrochemistry For students
Liquid manure is a valuable, fast-acting organic fertilizer that requires special collection and storage conditions. The article discusses methods for reducing nitrogen losses and provides recommendations for the effective use of the liquid fraction in crop production.
Agrochemistry For students
The article examines the classification of slurry manure based on its humidity level, as well as its rheological characteristics and chemical composition, which depend on the type of livestock animal and their feeding ration
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
