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运用X射线衍射技术对改性磷肥的结构进行研究，发现其晶体结构发生了较大的变化；这种晶体结构的变化减少了改性磷肥中有效磷在土壤中的固定，从而大大提高了其生物有效性，是生物量增加的主要原因。
The structure of modified phosphate fertilizer was studied by X-ray diffraction and found that the crystal structure of the modified phosphate fertilizer changed greatly. The change of crystal structure reduced the fixation of available phosphorus in the modified phosphate fertilizer, which greatly enhanced its phosphate Bioavailability is the main reason for the increase in biomass.