Effect of Physico-Chemical Properties of Soil under Various Depths on Different Cropping Systems in Ayodhya, India

A research work conducted during 2018-19 at Agronomy farm of Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya (U.P.) to evaluate the fertility status and effect of different cropping systems on soil physico-chemical characteristics and their correlation. The 300 representative soil samples with 4 depths viz. 0-15, 15-30, 30-60 and 60-90 cm soil samples were taken with manually driven post hole auger and processed for soil analysis from different plots of Agronomy farm. Results revealed that physico-chemical properties viz. particle Density, bulk density pH, EC, organic corban, nitrogen phosphorus potassium Sulphur and zinc varied vertically and horizontally in cultivated and fallow lands. The soils were sandy loam, clay loam, loam and silt loam. The frequency distribution of soil bulk density of entire farm ranged from 1.128-1.58 Mgm-3, particle density ranged 2.50-2.76 Mgm-3 and soil chemical properties, like, pH ranged from 7.2-11.5, the E.C. is found in ranged from .13-1.01 dSm-1. While organic carbon was ranged from 1.4-6.70 g kg-1. and notable available Nitrogen in Agronomy farm was low in ranged from 170.15-221.36 kgha-1.The Phosphorus availability was found in ranged from 6.01-16.87 kgha-1 , while Potassium was found in ranged from 163.20-220.98 kgha-1. How ever the availability of Sulphur, was found in ranged from 8.62-18.32 kgha-1, Zinc ranged from in Agronomy farm 0.28-0.81mgkg-1. The significant positive correlation were observed among soil B.D with N, B.D with P, B.D with K, B.D with S, P.D. with S, P.D. with Zn. While the significant negative correlations were observed among PD with O.C., Zn with P, Zn with K and Zn with S in whole Agronomy Farm.