2 Terms and definitionsEssential Nutrient- Element necessary for plant growth and reproduction, for example: nitrogen, phosphorus, and potassium.Deficiency- Plant condition where an essential nutrient is not sufficiently available.Symptom- A visual sign or condition that results from a deficiency: symptoms aids in diagnosing a deficiency.
3 More Terms and Definitions Fertilizer- Natural, manufactured, or processed material or mixture of materials that contains one or more of the essential nutrients; availible in:dry formliquid formgaseous form
4 Fertilizer TermsAnalysis- Percentage water soluble content of nitrogen (N), phosphorus (P) expressed as P2O5, and potassium (K) expressed as K2O in the fertilizer.Brand- Trademark of the company which produced the fertilizer.Complete Fertilizer- Fertilizer which supplies all three primary nutrients, (N,P,K)
5 Chemical Elements Essential To Plant Growth Non-mineral- air and waterCarbon (C)Hydrogen (H)Oxygen (O)Nitrogen (N)Mineral- from the soilPrimaryNitrogen (N)Phosphorus (P)Potassium (K)SecondaryCalcium (Ca)Magnesium (Mg)Sulfur (S)MicronutrientsIron (Fe), Boron (B), Manganese (Mn), Copper (Cu), Zinc (Zn), Molybdenum (Mo), Clorine (Cl)
6 10 Essential Elements Essential Elements Carbon (C) Hydrogen (H) Oxygen (O)Phosphorus (P)Potash (K)Nitrogen (N)Sulfur (S)Calcium (Ca)Iron (Fe)Magnesium (Mg)C. HOPKINS CAFÉ Mighty Good
8 Functions of Nutrients for plant growth Carbon, Hydrogen, and oxygen are needed in the plant processes of photosynthesis of photosynthesis and respiration.Approximately 95% of weight of plants comes from products of photosynthesis
9 Primary Nutrient Functions Nitrogen (N)Gives green color to plantInduces vigorous , rapid growth in plantsIncreases protein and yieldAids and promotes seed and fruit developmentNitrogen constitutes 80% of the atmosphere, yet it is one of the most critical elements for plant growth.Plants cannot utilize N as a gas, it must be combined with other elements.
10 More Primary Nutrient Functions Phosphorus (P)Important to germinating seedlingsContributes to early maturing cropsNecessary for seed and fruit formationStimulates root growth
11 Primary Nutrient Functions Cont. Potassium (K)Necessary for production and translocation of carbohydratesProduces plumper seedsControls Water intake and respirationStiffens straw and stalks
12 Secondary Nutrient Functions Sulfur (S)Necessary for nodule formation on legumesAssociated with plant enzyme systemsStimulates seed productionAffects protein and crop quality
13 Secondary Nutrient Functions Calcium (Ca)Speeds decay of organic matterStimulates formation of nitratesPromotes root and leaf growthNecessary for nodulation of legumes
14 Secondary Nutrient Functions Magnesium (Mg)Necessary for chlorophyll or green plant colorIncreases adsorption of phosphorusAids in the formations of fats and oilsImportant in plant enzyme system
15 Symptoms of nutrient deficiencies ReviewDeficiency- Plant condition where an essential nutrient is not sufficiently available.Symptom- A visual sign or condition that results from a deficiency: symptoms aids in diagnosing a deficiency.
16 Primary nutrient deficiency symptoms Nitrogen (N)Stunted and SpindlyYellow, yellowish green or light green in color in foliage (chlorosis)Older leaves affected first, starting at the tip and moves along the middle of the leaf.
20 Primary nutrient deficiency symptoms Potassium (K)Shorter plantsBronzing or browning of leaf colorLodging (bending of the stem) occursLeaves show yellow to brown coloring along leaf margins followed by complete browning.
22 Secondary nutrient deficiency symptoms Sulfur (S)Young plants have stunted appearanceLeaves have a light-green to yellow coloringStems are thin and spindlySulfur deficiency symptoms are similar in appearance to nitrogen deficiency symptoms.
23 Secondary nutrient deficiency symptoms Magnesium (Mg)Leaf parts between veins show a whitish colorLeaf tissue becomes yellow, veins remain green (interveinal chlorosis)Leaves curl upward along the margins
24 Deficiency ContinuedOther conditions besides deficiencies may cause abnormal plant growth.Cold, wet weather, lack of sunlight, disease, insect damage, and improperly applied chemicals are examples.
25 Factors that Influence Fertilizer Use Chemical and physical condition of the soilCrop to be grownClimatic ConditionsTime