C. Paul, Saha Monidipta, J. Száková, Sahu Chandra, P. Tlustoš
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引用次数: 0
Abstract
*Corresponding author e-mail: szakova@af.czu.czn **The study was supported by European Regional Development Fund NutRisk Centre No. CZ.02.1.01/0.0/0.0/16_019/0000845 (2018-2023). A b s t r a c t. Among the three important nutrients of (NPK) for plants, potassium plays a vital role in increasing disease resistance capacity and also in the activation of over 80 different enzymes responsible for plant metabolism. This article presents changes in the population of some soil beneficial microorganisms responsible for the nutrient cycling process in the soil and in their respiration activity as related to the application of different potassium (K) fertilizers (KCl and K2SO4) at different doses in a model incubation experiment. The application of KCl and K2SO4 fertilizers increases soil acidity at higher doses. The parameters describing the soil microbial community, i.e. microbial respiration and colony forming unit counts of free living N2-fixing bacteria, Rhizobium sp., Pseudomonas sp., potassium-solubilizing bacteria, and phosphate-solubilizing bacteria increased with the application of fertilizers at lower doses, but a minor decrease was observed for higher doses of fertilizers. The level of microbial activity showed a positive correlation with the application of different amounts of fertilizer but no effect was observed due to the use of different fertilizer types, thereby indicating that a substantial improvement in soil biological activities can be achieved regardless of the K fertilizer type at optimized doses. K e y w o r d s: potassium fertilizer, soil health, soil biology, incubation experiment, sustainable fertilizer use
期刊介绍:
The journal is focused on the soil-plant-atmosphere system. The journal publishes original research and review papers on any subject regarding soil, plant and atmosphere and the interface in between. Manuscripts on postharvest processing and quality of crops are also welcomed.
Particularly the journal is focused on the following areas:
implications of agricultural land use, soil management and climate change on production of biomass and renewable energy, soil structure, cycling of carbon, water, heat and nutrients, biota, greenhouse gases and environment,
soil-plant-atmosphere continuum and ways of its regulation to increase efficiency of water, energy and chemicals in agriculture,
postharvest management and processing of agricultural and horticultural products in relation to food quality and safety,
mathematical modeling of physical processes affecting environment quality, plant production and postharvest processing,
advances in sensors and communication devices to measure and collect information about physical conditions in agricultural and natural environments.
Papers accepted in the International Agrophysics should reveal substantial novelty and include thoughtful physical, biological and chemical interpretation and accurate description of the methods used.
All manuscripts are initially checked on topic suitability and linguistic quality.