【作者】 廖宗文； 熊金涛； 张俊涛；

【Author】 Liao Zongwen,Xiong Jintao,Zhang Juntao (New Fertilizer Resources Research Center,College of Resource and Environmental Sciences South China Agriculture University,Guangzhou,510642)

【机构】 华南农业大学资源与环境学院；

【摘要】 采用连续水浸提、盆栽试验,研究经不同温度和促释材料活化的磷矿粉磷素动态释放特性及肥效。结果表明:(1)与磷矿粉相比,促释磷矿粉连续浸提水溶性磷累积量显著提高;提高幅度最大的是经加温处理的WZ促释磷矿粉,较未加温处理提高了42.95%,是磷矿粉的2.13倍。表明活化磷矿粉经加温处理能明显促进磷矿粉水溶性磷的释放。(2)肥效实验表明,促释磷矿粉显著优于磷矿粉。WZ处理的效果较佳,经加温活化处理后的肥效最佳,不亚于SP。更多还原

【Abstract】 Promoted-release phosphate rock(PRPr)was activated of different temperature and promoted-release material, and the dynamic release characteristics and fertilizer effect of PRPr were studied through continuous water extraction and a pot experiment.The major findings were summarized as follows:(1)compared to phosphate rock,water-soluble phosphorous accumulative release rates of PRPr was significantly increased.Especially,the WZ-PRPr by temperature processing was the largest increasing,enhanced 42.95 percent by PRPr,and 2.13 times higher than phosphate rock.(2) The result of fertilizer experiment showed that PRPr were obviously higher than phosphate rock.The treatment of WZ had better effect,and the best effect was WZ-PRPr by temperature processing,that had the same fertilizer effect with super-phosphate fertilizer.更多还原