MICRO NUTRIENTS \tAlso referred to as trace or minor nutrients. \tThey are required in small quantities/traces. \tThey are essential for proper growth and development of plants. They include; \tIron, \tManganese, \tCopper \tBoron, \tMolybdenum \t ROLE OF MICRONUTRIENTS AND THEIR DEFICIENCY SYMPTOMS Copper \tRole in oxidation-reduction reactions. \tRespiration and utilization of iron \tDeficiency symptoms-yellowing of young leaves. Iron \tSynthesis of proteins. \tTakes part in oxidation-reduction reactions. \tDeficiency symptoms - leaf chlorosis Molybdenum \tNitrogen transformation in plants. \tMetabolization of nitrates to amino acids and proteins \tDeficiency symptoms -leaf curl and scathing. Manganese - Same as molybdenum. Zinc \tFormation of growth hormone. \tReproduction process \tDeficiency symptoms - white bud formation. Boron \tAbsorption of water. \tTranslocation of sugar Inorganic Fertilizers \tThese are chemically produced substances added to the soil to improve fertility classification according to nutrients contained Straight - contain only one macronutrient. Compound fertilizers - contain more than one macronutrient Time of application Some applied when planting. Top dressing after crop emergence Effects on the soil pH. \tAcidic fertilizers. \tNeutral fertilizers. \tBasic fertilizers.