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Plant Nutrition vs. Plant Fertilization
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Plant Nutrition Vs Plant Fertilization Nutrition: Availability and type of chemical elements in plant Fertilization: Adding nutrients to soil
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Nutrients 16 elements: C, H, O, Macronutrients Micronutrients
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Macronutrients Nutrients required in large quantities N P K Ca Mg S
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Primary Nutrients N P K Primary because they are needed in large amounts
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Secondary Macronutrients Ca Mg S Only moderate amounts required
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Micronutrients (Nutrients needed in small quantities) B Cu Cl Fe Mn Mo Na Zn
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What are the role of nutrients?
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What makes plants look Unhealthy? Discoloration of leaves Death of leaf tissue Stunted growth
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Examples Discoloration of Leaves
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Nutrient Deficiencies N Chlorosis on lower leaves
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Nutrient Deficiencies NN Chlorosis of leaves
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PP Purplish coloration of leaves Nutrient Deficiencies
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K Chlorosis of leaves Brown leaf edges Nutrient Deficiencies
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K Chlorosis of leaves Brown leaf edges
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Nutrient Deficiencies S: yellowing of entire plant; leaves
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How can you correct nutrient deficiency?
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Fertilizer
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What is fertilizer? Any material added to the soil to provide nutrients that will increase growth, yield, or nutritional value of the plants.
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Fert. Classifications Inorganic Natural Organic Synthetic Organic
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Inorganic Fert. Non-living sources (minerals/rocks) Chemically made
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Inorganic Fert. Characteristics: Nutrients in soluble form and quickly made available to plants Should not come in contact with roots or foliage for long time period
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Natural Organic From plant/animal material Characteristics: N usually predominant Nutrients are only made available to the plants as the materials decay in soil, so SLOW ACTING & LONG LASTING
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Natural Organic Examples: Animal manure Cottonseed meal Soybean meal Dried blood Dried ground/sewage sludge Bone meal
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Synthetic Organic Fert. Made from carbon based materials
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