Encyclopaedia Of Scientific Crop Production

All living organisms need food for their existence. They need food for their growth, repair of tissues, energy and also protection against diseases. The various components of food are proteins, carbohydrates, fats, vitamins, minerals, roughage and water. Of all the living organisms, only plants are autotrophy i.e., they are capable of synthesizing their own food. Animals are heterotrophy i.e. they...