本文报道了春小麦的相对产量、总吸磷量与土壤有效磷测定方法之间的相关研究.测定方法包括:Olsen法、Machigen法、NH_4HCO_3—DTPA法和MehlichⅢ法。在不同肥力水平的灌漠上进行盆栽试验和田间试验,并获得了春小麦的相对产量和总吸磷量.结果表明无论盆栽试验或田间试验,春小麦的相对产量、总吸磷量与四种测定方法之间的相关性均极为显著.这四种方法都适用于灌漠土有效磷的测定。 This paper reports the correlation between the relative yield of spring wheat, total phosphorus uptake and determination of soil available phosphorus, and the determination methods include Olsen method, Machigen method, NH_4HCO_3-DTPA method and Mehlich method. Pot experiments and field experiments were conducted on indomitable deserts with different fertility levels, and the relative yield of spring wheat and the total phosphorus uptake were obtained.The results showed that the relative yield of spring wheat, total phosphorus uptake, The correlation between the methods are extremely significant.These four methods are suitable for the determination of available phosphorus in irrigated desert soil.