土壤因母质来源、发育程度和pH不同,其磷素的形态、含量、供磷能力和对磷的同定强度等都有很大的差异。有关这方面的情况虽然已有很多报道,但在潜育性土壤上的表现及对水稻生长发育的影响,研究报道很少。为了探索潜育性水稻土磷肥肥效的机理和潜育性水稻土低产的原因,作者对潜育性水稻土的磷素状况进行了一些试验研究,现总结如下; Due to the different sources and degrees of development and pH of the soil, the soil has a great difference in the form and content of phosphorus, the ability of supplying phosphorus and the same intensity of phosphorus. Although there have been many reports on the situation in this area, its performance in soils with poor soil fertility and its impact on the growth and development of rice is rarely reported. In order to explore the mechanism of fertility of phosphate fertilizer in subsoil paddy soil and the reason of low production of the subsoil paddy soil, the authors conducted some experimental studies on the status of phosphorus in the glebe in paddy soil.