山东主要土壤对水溶性磷肥的固定  

Fixation of water-soluble phosphate fertilizer in main types of soil in Shandong Province

作　　者：于淑芳[1] 高弼模[1] 张玉兰[1] 刘文妍 

机构地区：[1]山东省农业科学院土壤肥料研究所,济南250100 [2]安丘市土肥站

出　　处：《山东农业科学》2001年第1期13-15,共3页Shandong Agricultural Sciences

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。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

关 键 词：水溶性磷肥 土壤 固磷量 固磷率 山东 

分 类 号：S143.22[农业科学—肥料学] S159.252[农业科学—农业基础科学]