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lntroductionSoiImicroorganismsareimportantingredientsinsoilandobviouslyaff6ctsoiIf6rtiIity,andtheycanchangethephysicochemicaIpropertiesofthesoilsbythejrmetabolicactivities.The'reproductionofmi-croorganismscanintensiveIyinffuencegrowthanddeveIopmentofpIants.Therootsoffensecretevari-OuskindsofexosmosemateriaIsuchassaccharide,aminoacidandvitamins,whichcanalsostimuIatethereproductionofthesoilmicroorganisms.Thenumberandspeciesofthesoilmicroorgaoismsaredifferentwiththechangeofthesoiltype,environ… 相似文献
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