NITROGEN AND ORGANIC MATTER MANAGEMENT, TILLAGE SYSTEMS AND THEIR EFFECT ON SOME CHARACTERISTICS OF YELLOW CORN GROWN IN TWO GYPSUM SOILS. Iraqi J. Agric. Res. [Internet]. 2025 Jun. 30 [cited 2026 Sep. 18];29(1):24-37. Available from: https://ijarmoa.gov.iq/index.php/ijar/article/view/235