Effect of integrated nutrient management of ryegrass on soil properties

Abstract

An experiment entitled “Performance of ryegrass (Lolium multiflorum) under integrated nutrient management” was carried out at Instructional-cum-Research (ICR) Farm of Assam Agricultural University, Jorhat during the rabi season of 2019-20. The experiment was laid out in Randomized Block Design (RBD), replicated thrice with eight treatments viz., T1: Control (No fertilizer), T2: 100% RDF (inorganic), T3: 75% RDF (inorganic), T4: 50% RDF (inorganic), T5: 75% RDN (inorganic) + 25% vermicompost (organic), T6: 75% RDN (inorganic) + 25% FYM (organic), T7: 50% RDN (inorganic) + 50% vermicompost (organic) and T8: 50% RDN (inorganic) + 50% FYM (organic). The soil of the experimental site was sandy loam in texture, acidic in reaction (pH 5.42), medium in organic carbon (0.52%) and available K2O (155.45kg/ha) and low in available N (235.62 kg/ha) and available P2O5 (20.12 kg/ha). The results revealed that maximum soil organic carbon was recorded under treatment T8 (50% RDN + 50% FYM) which was at par with treatment T6 and T7. The highest available N, P2O5, K2O in soil was recorded under treatment T5 (75% RDN + 25% vermicompost).