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

Ultisol soil has a low organic matter content, CEC, and pH, causing an insufficient buffering capacity for N nutrients, especially NH4+. The objective of this study was to determine the effect tillage fertilization on quantity intensity (Q/I) Ammonium (CRNH40, PBCNH4+, NH40, KG) in soil, plant C uptake, mung bean yields at sixth growing season ultisols. This arranged 2 × factorial Randomized Block Design (RBD). first factor system (T), namely minimum (T0) intensive (T1). second (P), without fertilizer application (P0), with (NPK 200 kg ha-1 + 1 Mg chicken manure) (P1). Each treatment replicated four times. results showed that NPK significantly affected yield, Nitrogen Carbon uptake harvest time. While, had very significant increasing compared tillage. Minimum increased Q/I parameters (PBCNH4+, KG, CRNH40, NH40). parameter (CRNH40) correlated uptake. PBCNH4+ KG were yields.