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AgricultureAgronomySoil SciencesNutrient ManagementPlant EcologyPlant NutritionCrop Nutrient RequirementsCrop NutritionNutrient AvailabilityOilseed Nutrient ManagementSoil Nutrient AvailabilitySoil-plant Nutrient RelationsCritical Leaf Nutrient ConcentrationCrop Nutrient ProfilingLeaf Nutrient AnalysisLeaf Nutrient DiagnosticsPlant Growth AnalysisPlant Nutrient Status AssessmentPlant Tissue Nutrient AnalysisSoil Macronutrient Assessment
.However, these values should only beused with the greatest caution.‘Optimum’, or ‘critical’, values forindividual nutrients can vary over aconsiderable range, depending onsuch factors as the age of palms, soilmoisture regime, ratio to other nutri-ent concentrations, type of plantingmaterial, spacing, and inter-palm competition. These factors do not act inisolation, but should be considered in sum (