Effects of application of rare earth elements(REE) for 12 years on REE content and distribution of spring wheat were studied on experiment farm where REE had been sprayed through leaves for 11 years. Application of REE for 12 years does not affect REE content and distribution in soil.In jointing stage of spring wheat(after application of REE 7 days),REE content in leaves is affected significantly,especially La、Ce,REE distribution of leaves is consistent with that of “chang le”,but has no relationship t...