Abstract: The study is to reveal the influences of phosphorus components and balance with the different long-term fertilization in cinnamon soil,then analyzes the correlation between them. By studying the influence of different fertilization measures on soil P transformation among different forms is to promote the soil phosphorus to become the forms,which can be absorbed by plant easily. It is also to provide the basis for improving the efficiency of phosphorus use and explore the reasonable phosphate control measures. Nine treatments were selected:without fertilizer;4 different nitrogen and phosphorus fertilizer combination treatments;3 organic and inorganic fertilizer combine treatments and 1 single high-volume organic fertilizer treatment. The sample soil was taken from the 0-20 cm in the long-term positioning test in Shouyang County,Shanxi Province from 1992 to 2012. The content of different P forms was determined by the P classic way of Hedley. Analyzing effects of P components and P surpluses with different long-term fertilization treatments and calculating the correlation between them. It found that the organic and inorganic combine fertilizer and single application of high organic fertilizer treatments promote P to become the more active forms. It will make the content of H₂O-P and NaHCO₃-P increase sharply. Each fertilizer treatment has the influnce on the number of H₂O-P, NaHCO₃-P in the arable soil. With the augment of the P fertilizer,many activate P forms become NaOH-P. HCl-P was influenced smaller than other forms with different P fertilizer. The Residual-P was decreased with the P fertilizer input. The amount of surplus P of various treatments:N₀P₀M₆ > N₃P₂M₃ > N₄P₄M₀ > N₃P₃M₀ > N₄P₂M₂ > N₂P₂M₀ > N₂P₁M₁ > N₁P₁M₀ > N₀P₀M₀. The correlation between P surplus and different P forms expresses:HCl-P > NaHCO₃-P > Residual-P > H₂O-P > NaOH-P long-term fertilization,which included the single large inorganic fertilizer and irrational organic and inorganic combine fertilizer,result large amounts of P surplus in the soil especially the single much organic fertilizer. When the number of P in the soil reached 33-61 kg/ha,it could meet the requirements of plants. N₄P₂M₂ processing not only could meet the demand of plant but also could improve the utilization to maximum 36.4%. It was the recommended P fertilizer rate for 61 kg/(ha·a). The correlation between the surplus of soil P and the P stable forms was the largest,and the P surplus would decrease the utilization efficiency of phosphorus sharply. Reasonable organic and inorganic combine fertilization can improve the efficiency of phosphorus utilization.

Key words: Cinnamon soil, Long-term fertilization, Phosphorus components, Phosphorus balance, Response

CLC Number: 

• S143.2