MICRO NUTRIENTS

Also referred to as trace or minor nutrients. They are required in small quantities/traces. They are essential for proper growth and development of plants.

They include;

1. Iron,
2. Manganese,
3. Copper
4. Boron,
5. Molybdenum

ROLE OF MICRONUTRIENTS AND THEIR DEFICIENCY SYMPTOMS

Copper

1. Role in oxidation-reduction reactions.
2. Respiration and utilization of iron
3. Deficiency symptoms-yellowing of young leaves.

Iron

1. Synthesis of proteins.
2. Takes part in oxidation-reduction reactions.
3. Deficiency symptoms – leaf chlorosis

Molybdenum

1. Nitrogen transformation in plants.
2. Metabolization of nitrates to amino acids and proteins
3. Deficiency symptoms -leaf curl and scathing.

Manganese – Same as molybdenum.

Zinc

1. Formation of growth hormone.
2. Reproduction process
3. Deficiency symptoms – white bud formation.

Boron

1. Absorption of water.
2. Translocation of sugar

Inorganic Fertilizers

1. These 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.

1. Acidic fertilizers.
2. Neutral fertilizers.
3. Basic fertilizers.

See also:

Definition and Objectives of Export Promotion in Agriculture

Benefits of Export Promotion

Agricultural Insurance | Meaning, Importance, Types, Risks, Problems & Terminologies

Agricultural Marketing | Co-operative Societies, Producers, Middlemen, Wholesalers,

Farm Records and Farm Accounts