Abstract

A long-term field experiment conducted since 1972 on Vertic Ustropep indicated that application of 10 t ha-1 of farmyard manure along with 100 per cen NPK recorded significantly lower bulk density. Farm yard manure application wit 100 per cent inorganics increased the hydraulic conductivity, water stable aggregates porosity and water holding capacity. There was increase in CEC, organic carbon an total N content of soil due to incorporation of organics with inorganics. There wa no marked changes in soil pH and EC due to various treatments. Available major and micronutrients increased significantly when organics was incorporated along with inorganic sources of nutrients.

Keywords: Long term effect, Fertilizers, Manures, Soil properties.