After 6 continuous rice cropping seasons (3WS and 3 DS), all the fertilized plants regardless of sourdes had higher average yields than the unfertilized plants. Chicken manure was as good as the inorganic fertilizer in terms of nutrient supplement and grain yield. Rice straw showed higher supply of potassium than the other organic fertilizers used in all the cropping seasons. The use of sunflower and commercial organic fertilizer gave stable yield in the first 2 years but decreased in the 3rd year of usage. They, however, yielded 620 to 650 kg/ha more grains over the unfertilized. Generally,there was a decreasing trend in yield and nutrient after 2 continuous years of organic fertilizer application. Likewise, there was a drop of N and K during the mid-tillering stage of the rice plants. This would imply the need to integrate inorganic with organic fertilizer to increase yield and sustain rice growth and grain yield.