FATES OF FERTILIZERS IN SOILS RECOMMENDATION FERTILIZER ANALYSIS FERTILIZER QUALITY CONTROL MANAGEMENT OF FERTILIZERS IN SOIL MANUFACTURE AND PROPERTIES MANUFACTURE AND PROPERTIES OF FERTILIZERS NITROGEN, PHOSPHORUS AND POTASSIUM IN SOILS NITROGEN,PHOSPHORUS AND POTTASSIUM IN SOILS PLANT TESTING KIT SOIL TESING KIT SOIL TESING METHODS SOIL TESTING KIT SOIL TESTING METHODS