通过盆栽试验，研究了施磷土壤中磷浓度相同而其体积不同时，对棉花根系形态和磷吸收的影响。结果表明，土壤施磷后供磷率增加，磷对棉花根系生长有刺激作用，随施磷土壤体积的增加，棉花根系变细、变长，根密度和根表面积增大，吸磷量亦增大 Pot experiments were conducted to study the effects of different phosphorus concentrations on the root morphology and phosphorus uptake of cotton plants. The results showed that phosphorus supply increased after phosphorus application and phosphorus stimulated the root growth of cotton. With the increase of phosphorus application volume, cotton roots became thinner and longer, root density and root surface area increased, and phosphorus uptake also increased Big