Tag: CBSE 9th Biology

  • Biology IX | Improvement in Food Resources | Part 3

    Improvement in Food Resources | Part 3 Animal Husbandry The branch of agriculture that deals with the feeding, caring and breeding of domestic animals is called animal husbandry. Husbanding means to use a resource carefully and without waste. Thus, animal farming or animal husbandry requires planning for domestic animal’s shelter, breeding, health, disease control and…

  • Biology IX | Improvement in Food Resources | Part 2

    Improvement in Food Resources | Part 2 Fertilizers Fertilizers are the sources of plant nutrients, manufactured commercially from chemicals. Fertilizers supply Nitrogen, Phosphorus and Potassium (NPK). Basically they are used for good vegetative growth (i.e., growth of leave, branches and flowers), giving rise to healthy plants. Fertilizers are one of the major components for obtaining…