NCERT Solutions for Class 9 Biology Chapter 5 Improvement In Food Resources

Improvement in Food Resources tries to explain the abiotic and biotic factors that affect crop production, Crop production management, Crop protection management and Improvement in crop yields. Importance of cattle breeding, animal husbandry, Bee-keeping and poultry science is also mentioned in this chapter. Fish production along with the difference between layers and broilers. Plant and animal breeding and selection for quality improvement and management, Use of fertilizers, Manures, Protection from pests and diseases, Organic farming. Food supplies proteins, carbohydrates, fats, vitamins and minerals, all of which we require for body development, growth and health. Soil: (i) Macro-nutrients: Nitrogen, phosphorus, Water: Hydrogen, Oxygen Source: Nutrients