The accumulation of dry matter and nutrient absorption were mainly focused in tillering stage to spike formation stage
under application of chemical fertilizer alone and focused in heading stage to maturing under application of organic manure and chemical fertilizer combined with chemical fertilizer. That would be propitious to meet the nutrient requirement for rice growth (Zou et al. 2002). The former results indicated that there were difference on increasing yield of rice and soil fertilization under different fertilizers in combination with organic manure fertilization (Zheng et al. 2001).