Aini, S. N.; Nurtyas, O. M.; Lumbanraja, J.; Salam, A. K. The Behavior of Ammonium Exchange (Q/I) in Soil, Nitrogen and Carbon Uptake, and Mung Beans (Vigna Radiata L.) Yields As Affected by Tillage and Fertilization at the Sixth Planting Period in Ultisol Soil. j Trop. Soils 2022, 27, 121-131.