FIELD PERFORMANCE EVALUATION OF A SUBSOIL PLOW WITH ADDED SMOOTH AND GROOVED DISC BLADES BASED ON SELECTED INDICATORS. Iraqi J. Agric. Res. [Internet]. 2025 Jun. 30 [cited 2026 Sep. 18];29(1):49-62. Available from: https://ijarmoa.gov.iq/index.php/ijar/article/view/237