Green revolution
Green revolution is a program introduced in many countries to increase food production by used of modern technology propagation improve seeds etc.
White revolution
White Revolution is a program in India to increase production of milk in India.
Improvement in crop yields
Types of crops
a) Cereals : they include crops like wheat ‚rice, maize, barley etc. They provide us carbohydrates.
b) Seeds : not all cheats of clans are edible like seats of apple or cherry.
Edible seeds include serials pulses oil seeds and nuts.
They provide us fats.
c) Pulses : they include legumes such as gram ‚pea, black gram, green gram, lentil. They provide us proteins.
d) Vegetables, Spices and Fruits : They provide us vitamins and minerals.
they include apple, mango, cherry, banana, water melin etc.
Vegetables like spinach, leafy vegetables, carrot etc.
Spices like chilly, black pepper, cinnamon, fennel etc.
e) Fodder crops — They provide green fodder to the cattle eg — oats, sorghum etc.
Crop Season
Different crops require different conditions like temperature Monster etc different photo periods duration of Sunlight for their growth and completing life cycle.
The two types of crops season are:-
- a) Kharif Season: These crops grow during rainy season ( June to October). They are also called summer season crops. Eg of Kharif crops are black gram, green gram, pigeon pea, rice, paddy, soybean.
- b) Rabi Season: The crops are grown during November to April.
Rabi crops are known as winter crops.
Eg.Wheat, gram, peas, mustard, linseed etc.
Approaches which enhance the crop yields are as follows:-
- Crop variety improvement
- Crop production Improvement
- Crop protection improvement
- Crop Variety Improvement:- Factors by which variety improvement can be done are:-
- Good and healthy seeds.
- Hybridisation:- It is the process of crossing between two or more genetically dissimilar plants to produce a new variety with good properties of both the crops.