Effect of continuous adoption of conservation agriculture management practices on soil chemical properties under soybean in Vertisol

Abstract

A field experiment was conducted during kharif 2018/19 on farmer’s field in three villages of Barshi takali tehsil under Department of Soil Science and Agricultural Chemistry, Dr. PDKV, Akola (MS). The experiment consisted of ten treatments in randomized block design replicated thrice were each farmer has been treated as single treatment and each sample taken from a treatments has been treated as one replication. The soil of experimental site was Vertisol belonging to fine, smectitic, hyperthermic, Typic Haplusterts. It was calcareous in nature and moderately alkaline in reaction. The fertility status of the soil indicates that the soil was moderate in organic carbon, available nitrogen and phosphorus and very high in available potassium. Result revealed that the lower value of pH (7.77), higher value of EC (0.35 dS m-1), highest value of organic carbon content (7.80 g kg-1), and lowest value of calcium carbonate content (7.63%) was recorded in T1 where, conservation agriculture management practices were followed since last 15 years. The highest value of available nitrogen (225.38 kg ha-1), available phosphorus (23.81 kg ha-1), available potassium (419.70 kg ha-1) and available sulphur (12.00 kg ha-1) were recorded in T1 where, conservation agriculture management practices were followed since last 15 years.