Agrochemical Characteristics of Chernozems of Mountainous Shirvan Economic Region: A Case Study of Ismayilli District
Tarlan Yelmarli 
Abstract. This study evaluates the impact of long-term anthropogenic land-use practices on the physicochemical, particle-size, and microaggregate properties of cultivated mountain chernozems in the Ismayilli district, Azerbaijan. Soil pit No. 4 was established in a cereal field in Rushan village, while pit No. 15 was excavated under a perennial vineyard in Ivanovka village. Results indicate that continuous annual grain cropping preserves organic matter and fine particulate matter within the surface plow layer (0–29 cm), yielding higher topsoil humus (3.48% vs 4.47%) and physical clay (
Keywords: agrochemical characteristics, chernozems, Mountainous Shirvan, humus, physicochemical characteristics, granulometric composition