Abdusalim Tukhtakuziev , Abdurakhmon Rasuljonov, Shuhrat Azizov and Nargiza Temirkulova 2024. EFFECT OF VERTICAL LOADING APPLIED TO A DOUBLE-DISC COULTER OF SEED DRILL FOR PLANTING REPEATED CROPS ON AN UNCULTIVATED LAND ON ITS PERFORMANCE. Research Focus International Scientific Journal. 3, 9 (Oct. 2024), 37–42. DOI:https://doi.org/10.66073/researchfocus.v3i9.966.