Impact of organic amendments on physical properties of theri soil and yield of groundnut

A field experiment was conducted at Poochikadu district, Tuticorin during the year 2010–2011 to evaluate the effect of different organic amendments and their combination on various physical properties of theri soil and groundnut crop. Results revealed that the yield of pods was high with the combination of farm yard manure and composted coir pith in equal amount (12.5 t ha⁻¹). Bulk and particle density of the soil have decreased as compared to control. The water holding capacity, pore space, saturated moisture, hydraulic conductivity and permeability were found increased considerably. Thus it can be inferred that the application of amendments in the proper combination may be a good strategy to reclaim the theri soils of South India.