CROPS OF KHARIF SEASONS
Kharif (or south-westerly monsoon) crops include rice, maize, jawar, bajra, groundnut, cotton and other crops.
Rice
Rice cultivation in India stretches from 8°N latitude to 34°N latitude. Rice is additionally grown in areas below the ocean level (as in the Kuttanad region of Kerala) as well as at altitudes of about 2000 m (as in parts of Jammu and Kashmir). High rainfall or assured irrigation is important for areas of rice cultivation. Rice crop requires about 30 cm of water per month during the growing period stretching from about 3 to eight months. Rice is grown on about 40 Mha within the country. This area also includes about 7 Mha which is saline, alkaline or flood-prone. Twenty-five per cent of the rice growing area has assured irrigation and about 55 per cent of the rice growing area is ill-drained or waterlogged. the remainder of the rice-growing area is rainfed uplands where the rainfall is marginal to moderate and its distribution is erratic.
Rice cultivation in India is either upland cultivation or lowland cultivation. The upland system of cultivation is confined to such areas which don't have assured irrigation facilities. In this system, fields are ploughed in summer, farmyard manure is uniformly distributed 2–3 weeks before sowing, and therefore the rain water is impounded in the field until the crop is about 45–60 days old.
In the lowland system of rice cultivation, the
land is ploughed when 5–10 cm of water is standing within the field.
Seeds could also be sown after sprouting. Alternatively, seedling which
are 25– 30 days old are transplanted. The
nursery area required to supply seedlings for transplanting on one hectare is roughtly one-twentieth of a hectare.
The water requirement of lowland rice cultivation is far higher
than that of other cereal crops with similar duration.
Maize
Maize requires deep and well-drained fertile
soils, but are often grown on any type of soil ranging from heavy clays to light sands provided that
the pH does not deviate from the range 7.5
to 8.5. Maize plants, particularly within
the seedling stage, are highly vulnerable to salinity
and waterlogging, and hence, proper drainage of
the land is important for the successful cultivation of maize. Over 85 per cent of the crop area in India is
rainfed during the monsoon.
Maize is
actually a warm weather crop grown
in different regions of the world ranging from
tropical to temperate ones. It cannot withstand frost at any stage of its
growth. In India, its cultivation extends
from the recent arid plains of Rajasthan and Gujarat to the wet
regions of Assam and West Bengal .
Maize may
be a short-duration (80–95 days)
crop and, hence, can conveniently fit into a good range of crop
rotations. it's usually grown as a pure crop, but sometimes legumes
(e.g., moong, arhar or beans), and
quick-growing vegetables (e.g., pumkins, gourds) are grown as mixed crops with it.
The sowing of maize starts 7–10 days
before the standard date of the onset of monsoon. One irrigation at the initial stage is beneficial for
the establishment of seedlings and the crop yield is increased by about 15–20 per cent. The maize crop is
harvested when the grains are nearly dry and don't contain more
than 20 per cent moisture. Maize is grown for grains also as fodder.
Sorghum (Jawar)
Spiked Millet (Bajra)
Bajra may be a drought-resistant crop which is generally preferred in
low rainfall areas and lighter soils. it's grown in Rajasthan, Maharashtra, Gujarat, and Uttar Pradesh .
Over 66 per cent of this crop is grown in
areas receiving 10–20 cm per month of rainfall, extending over 1 to 4 months of the south-westerly monsoons. It should be
noted that jawar and bajra are grown mostly
under identical environmental conditions and both have a good range of
adaptability to drought, temperature, and
soil.
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