【摘要】 利用室内模拟试验研究了山东主要土类———潮土、褐土、砂姜黑土、棕壤共 13个土壤样品对水溶性磷肥的固定。结果表明 ,土壤的固磷量与水溶性磷肥施入量有很好的直线关系 ,相关系数均在 0 96以上。土壤的固磷率随施磷量的增加而降低。供试土壤对水溶性磷肥的固定主要表现为含碳酸钙的石灰性潮土、褐土、砂姜黑土与非石灰性的棕壤之间有明显差别更多还原

【Abstract】 The fixation of water-soluble phosphate fertilizer in thirteen soil samples of Shandong Province was studied by model experiment Results showed that the phosphate fixing amount of tested soil was linear correlation to the phosphate fertilizer application rate, with the correlation coefficients over 0 96, and the phosphate fixing rates decreased along with increase of fertilizer The phosphate fixation had obvious difference between calcareous and non-calcareous soil更多还原