以不同用量的结晶有机肥 (暂定名 )处理土壤 ,培养 1月后 ,研究了它们对土壤磷吸附与解吸特性的影响。结果表明结晶有机肥能降低土壤对磷的吸附 ,表现为施用该肥料的土壤 ,磷等温吸附的Langmuir方程常数 (K值 )减小 ,土壤对磷的亲和力减弱 ,且随着结晶肥用量的增加 ,这一效应更加明显。与吸附相反 ,结晶有机肥能促进土壤磷的解吸 ,土壤磷的解吸量与结晶有机肥用量呈正相关 ,且起始磷浓度较低时 ,结晶有机肥增加磷解吸的效果更显著。此外 ,研究结果表明 ,随结晶有机肥用量的增加 ,土壤的Olsen P也明显增加 ,这与结晶有机肥对土壤磷的解吸效果一致 The soil was treated with different amounts of crystalline organic fertilizer (tentative name), and after 1 month of cultivation, their effects on the adsorption and desorption of soil phosphorus were studied. The results show that the organic fertilizer can reduce the soil phosphorus adsorption, the performance of the application of the soil, phosphorus adsorption constant temperature Langmuir equation constant (K value) decreases, the affinity of the soil phosphorus decreased, and with the increase of the amount of crystalline fertilizer , This effect is more obvious. In contrast to the adsorption, the organic fertilizer could promote the desorption of soil phosphorus. The desorption amount of soil phosphorus was positively correlated with the amount of organic manure. When the initial phosphorus concentration was lower, the effect of increasing the phosphorus desorption was more significant. In addition, the results showed that with the increase in the amount of organic fertilizer, the soil Olsen P also increased significantly, which is consistent with the desorption effect of crystalline organic fertilizer on soil phosphorus