one year type of rotation can be
A) Rice & wheat
B) potato &maize
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Answers
Explanation:
A.
RICE:-
Rice prominently grows in high rainfall areas. It requires average temperatures of 25°c and a minimum of 100 cms of rainfall. It’s traditionally grown in waterlogged rice paddy fields. Northeast plains and coastal areas are the major rice-producing areas of the country.
wheat:- Wheat requires cool temperatures during its growing season in the range of about 14°c to 18°c. Rainfall of about 50 cms to 90 cms is most ideal. However, during harvesting season in the spring, wheat requires bright sunshine and slightly warmer weather. Uttar Pradesh is the largest wheat-growing state in India closely followed by Punjab and Haryana.
B.
Potato:-
Pests: Nine studies from Canada and the USA, and one review, investigated the effect of crop rotation on pest or pathogen populations in potato. Three studies (including two replicated studies of which one randomised and one controlled) and a review found crop rotation reduced pest populations and crop diseases in at least one year or at least one site. One paired study (including one replicated, randomised, controlled trial) found pest populations increased in crop rotation. Four studies (including one replicated, randomised, controlled trial) found increases and decreases in pest populations depending on rotation crops used and other treatments. One replicated, randomised, controlled study found no effect.
Yield: Three out of five studies (all replicated, controlled, two also randomised) from Canada and the USA, found that crop rotation increased crop yield in some years or with certain rotation crops. The two other studies (both replicated, one also randomised and one replicated) found yield increases and decreases depending on rotation crops used.
Profit: One replicated, controlled study found that crop rotation increased profit.
Insecticides: Two studies (one replicated, controlled) found that fewer insecticide treatments were needed on rotated plots.
Crops studied were alfalfa, barley, broccoli, brown mustard, buckwheat, cotton, lupins, maize, oats, pearl millet, peas, potato, rye, sorghum, soybean, sugar beet, timothy grass, wheat and yellow sweet clover.
Maize:- After rice and wheat, maize is the most important cereal crop in India. It accounts for approximately one-tenth of the total agricultural produce in India. Cultivation of maize is focused in the regions of Andhra Pradesh and Karnataka. It requires temperatures in the range of 21°c to 27°c and rainfall of between 50 cms to 75 cms.
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