Plant nutrients and nutrients cycle

Agricultural science S.S.S 2 First Term

Week 1                

Plant nutrients and nutrients cycle


At the end of this chapter, students should be able to:


  1. List plant nutrient elements under the major classes
  2. Recognize deficiency symptoms of different elements in crops
  3. State the factors affecting nutrient availability in the soil
  4. Describe the different methods of replenishing lost nutrients
  5. Illustrate the different nutrient cycles using diagrams




Plants require nutrients or elements obtained from soil for good growth and healthy development. These elements or nutrients are classified into two main groups which are:



Macro-Nutrients are mineral elements or nutrients required by crops in large quantities. Examples of macronutrients are nitrogen, phosphorus, potassium, magnesium, calcium and Sulphur.


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