Abstract: Field experiment was conducted to investigate the effects of phosphorus fertilization on dynamic growth and development and yield of peanut, in order to provide the basis for the fertilization of peanut to achieve high yield and efficiency. The results showed that the height of main stem and the length of lateral branch of peanut were increased with the increase of phosphorus fertilization. However when the rate of phosphorus fertilization was higher than 225 kg/ha,further increasing the phosphorus fertilization,the promotion effect on the height of main stem and the length of lateral branch of peanut was not obvious. Increasing application of phosphate fertilizers can increase the node number of main stem and lateral branches of peanut and promote the occurrence of peanut branching. Increasing application of phosphate fertilizers improved the LAI(Leaf area index) of peanut. Appropriate1y increasing in phosphate fertilizer can increase the dry matter accumulation of stems and leaves of peanut. Increasing application of phosphate fertilizers can increase the pod yield of peanut. If the rate of phosphorus fertilization was more than 225 kg/ha,the effect of yield increasing was not significant.

Key words: Peanut, Phosphate fertilizer, Growth and development, Branching, Yield

CLC Number: 

• S565.2