Transcript Document
Plant Nutrition Vs Plant Fertilization Nutrition: Availability and type of chemical elements in plant Fertilization: Adding nutrients to soil Nutrients 16 elements: C, H, O, Macronutrients Microntrients Macronutrients Nutrients required in large quantities N P K Ca Mg S Primary Nutrients N P K Primary because they are needed in large amounts Secondary Macronutrients Ca Mg S Only moderate amounts required Micronutrients (Nutrients needed in small quantities) B Mo Cu Na Cl Zn Fe Mn How to Remember???? C HOPKNS Ca Fe Mg (C. Hopkins café might good) Remaining nutrients: B, Cu, Cl, Mn, Mo, Zn What are the role of nutrients? (refer to handout) What makes plant look Unhealthy? Discoloration Death of leaves of leaf tissue Stunted growth Examples Discoloration of Leaves Nutrient Deficiencies N Chlorosis on lower leaves Nutrient Deficiencies N Chlorosis of leaves P Purplish coloration of leaves K Chlorosis of leaves Brown leaf edges K Chlorosis of leaves Brown leaf edges Nutrient Deficiencies S: yellowing of entire plant; leaves How can you correct nutrient deficiency? Fertlizer What is fertilizer? Any material added to the soil to provide nutrients that will increase growth, yield, or nutritional value of the plants. Fert Classifications Inorganic Natural Organic Synthetic Organic Inorganic Fert Non-living sources (minerals/rocks) Chemically made 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 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 Natural Organic Examples: Animal manure Cottonseed meal Soybean meal Dried blood Dried ground/sewage sludge Bone meal Synthetic Organic Fert Made from carbon based materials Sources of Info Various pictures used in this presentation were found on various internet sites.