【摘要】 比较了几种有效磷测定方法浸出磷的形态及其对植物的有效性,结果表明,不同浓度的NaHCO₃溶液浸出的磷主要是Ca₂-P,与植物的吸磷量相关性高。当有效氮、磷联合浸提测定时,推荐采用0.05mol.L NaHCO₃溶液为浸提剂。更多还原

【Abstract】 The form of phosphorus and their effectiveness to plant soaked out by different methods of defermining effective phosphorus were also comparecl.The phosphorus soaked out by different contents of NaHCO₃ was mainly Ca₂-P. Which had higher correlation with phosphorus absorbed by plant. 0.05mol·L^-1NaHCO₃ was recommended when the effective N and P was determined combiningly.更多还原