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.
5 min read For students
The article describes an algorithm for conducting analysis of variance for complex three-factor agricultural experiments. Using a rice trial as an example, the calculation of variances and the determination of the contribution of factors to the final yield are demonstrated
3 min read For students
The application of correlation and regression methods allows agronomists to mathematically substantiate the influence of growing conditions on crop development. The article explains the principles of evaluating the statistical significance of relationships and the interpretation of coefficients for the effective planning of agrotechnical practices.
6 min read For students
The article examines the methodology of statistical analysis of the relationships between biometric and biochemical traits of plants. Requirements for the formation of variation series and the conduction of sample measurements for the correct calculation of correlation coefficients are described
3 min read For students
The article presents a methodology for calculating the responsiveness index (R) to evaluate the efficiency of fertilizer application. The material helps agronomists determine the reaction of specific cultivars to mineral nutrition in order to increase the economic efficiency of production
5 min read For students
Mineral fertilizers provide half of the harvest increase, but their irrational use leads to losses of active ingredients and environmental damage. The article examines the causes of nutrient leaching and ways to improve the efficiency of fertilizer application to preserve soil fertility
8 min read 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
