A field experiment was conducted at Mukuperi village in Thoothukudi district of Tamil Nadu, South India in 2018, which is situated at 8.5649⁰ latitude and 77.9910⁰ longitude, to study the effect of different organic amendments with various combinations on physical properties of the soil and the impact on green gram. The experiment was laid out in randomized block design with three replications. The treatments of this study were Vermicompost (VC), Farm yard manure(FYM), and Poultry manure (PM)  and their combinations at three different concentrations 8.5, 12.5 and 16.5 t ha^-1. The organic amendments were applied and the soil samples were collected in each plot and analysed. The physical properties such as Bulk density(BD), Particle density(PD), water holding capacity(WHC), Pore space(PS) and Saturated moisture (SM) were determined. The yield was high in the treatment VC@ 12.5 t ha^-1and it was found as 1112 Kg ha^-1 in which the control had 260 Kg ha^-1. The bulk density and particle density of the soil had decreased in all treatments other than control. The percentage of water holding capacity, pore space and saturated moisture had  increased. Thus, the application of organic manure increases crop growth, yield and soil nutrient status without polluting the environment.

 Key Words:  Farm yard manure, Vermicompost, Physical properties, Organic amendments.