CONDUCTIVITY AND PARTICLE SIZE MEASUREMENT IN SANDY LOAM SOIL USING ORGANIC AMENDMENT

An analysis of field study was undertaken at Karisalpatti in Cheranmahadevi block, Tirunelveli district of Tamil Nadu, South India in 2018 and the conductivity measurement was done for the sandy loam soil which is situated at 8.600 latitudes and 77.580 longitudes. The analysis was highly focused on the soil by blending vermin compost (VC) at 17.5 t ha-1 concentration and also farmyard manure (FYM), vermin compost (VC) and Goat Manure (GM) at 17.5 t ha-1 concentration. Before and after harvest the conductivity properties such as Electrical Conductivity (EC), Thermal Conductivity (K) and Hydraulic Conductivity (HC) were studied. The observed conductivities reveal the presence of soil moisture capacity. The moisture content in the soil can conduct an electric current. The morphological appearance such as the shape and size of the sandy loam soil was studied using SEM characterization. From the EDAX spectrum, the mineral composition of organic matter was confirmed. Particle size analysis of the sandy loam soil reveals the intensity distribution of soil particles. The particle size study of soil structure was essential to predict the water holding capacity of the soil. Method of combining manures with the composted organics could be taken up; so that the physical properties of the soil are enhanced. Organic agriculture enhances the physical potential of the soil, underground water resources and also protects them from natural and human-induced degradation. Monitoring the soil's physical properties influence precision farming in climatic change. The organic amendment added sandy loam soil increases the water permeability, total porosity and large pores in the soil which were responsible for gravitational water movement in the soil. Organic amendments improve the hydrologic effects on soil physical properties such as hydraulic conductivity and moisture content. Increasing residue returns and adding organic amendment improves the soil water holding capacity. It positively influenced the yield. Thus it is concluded that the application of organic amendment contributes high yield attributes to the corn crop.