Response of arbuscular mycorrhizal fungi and soil chemical properties to Brachiaria decumbens grass production technologies

Abstract

The aim of this research was study if the effect of different Brachiaria decumbens production technologies could to improve the sustainability of livestock systems at Cumaral, Meta, Colombia. We evaluated the effects of two pastures type: Brachiaria decumbens grass (B1) and Brachiaria decumbens grass associated with kudzu Pueraria phaseloides legume (B2), four lime doses: 0 t CaCO3 ha-1 (L0), 1.1 t CaCO3 ha-1 (L1), 2.2 t CaCO3 ha-1 (L2), 3.3 t CaCO3 ha-1 (L3), and three N, P, K fertilizers sources: Urea, triple superphosphate (TSP), potassium chloride (PCl) on arbuscular mycorrhizal fungi (AMF) and soil chemical properties (SCP). B2*N, P, K fertilizers sources L3 and L2 showed highest number of spores of AMF and improvement of the SCP.