The soils of Kerala are predominantly acidic with high amount of exchangeable aluminium and low plant available silicon (Si). Application of Si fertilizers in this soil has a significant potential benefit on growth and yield of plants. In this view, a field experiment was conducted at Agronomic Research Station, Chalakudi, Kerala during 2013-14 to study the effect of different sources of silicon on nutrient status and yield of rice in wet land soil. The experiment was laid out in Completely randomized design replicated thrice with six treatments using Uma as the test variety. The results revealed that the application of silicon had a synergistic effect on the availability of nutrients in the soil as well as yield attributes of rice. Application of calcium silicate (T6: POP+calcium silicate) proved significantly superior with respect to grain yield and recorded 6.90 t ha-1. The significant increase might be due the cumulative effect of increased no. of panicles/hill, no. of spikelets/panicle and thousand grain weight and improved uptake of nitrogen and calcium with calcium silicate application. It revealed sandy clay loam soil low in available Si had a high response to applied Si and there is a possibility of enhancing growth and yield of rice in wet land soils.