D. Kehayov1*, I. Zahariev1, I. Bojkov2

1Department of Agricultural Machinery, Faculty of Viticulture and Horticulture, Agricultural University, 4000 Plovdiv, Bulgaria
2Regional Directorate of Agriculture, 4400 Pazardzhik, Bulgaria

(Manuscript received 27 June 2022; accepted for publication 5 October 2023)

Abstract. Grain production provides significant resources for the food industry and animal husbandry. One of the most important moments in the cultivation of cereals is the planting of seeds in the soil. The sowing process is influenced by many factors. This study examines the impact of two such factors: seed density and the length of the sowing apparatus. These factors affect the quantity of seeds sown. Factor analysis demonstrated that changes in seed density exert a more substantial influence on seed quantity alterations. A functional relationship has been determined between the amount of seed sown, the length of the sowing apparatus in the seed box and the density of the crop used.