Purtova L.N., Timofeeva YA.O.
Plodorodie 2024; (4): 64-67
The influence of sowing perennial grasses and their grass mixtures with legumes on the formation and reserves of humus, enrichment by catalase, CO2 emission and the potential rate of organic matter mineralization in Planosols from Primorye was studied. Methods generally accepted in soil science were used in this work. Based on the assessment of the studied indicators, alternations in the seasonal dynamics of humus accumulation processes and biological activity of soils were established. In the autumn period, a general tendency was noted for a decrease in the content and reserves of humus, CO2 emission and the potential rate of mineralization of organic matter in the soils of all studied experimental variants. The use of grass mixtures with legumes (timothy+alfalfa, timothy+clover+alfalfa) was accompanied by increased formation of potentially mineralizable organic matter and created the most favorable conditions for the process of humus formation in the Planosols from studied region.
