Cropping
Pattern
Introduction
A
watershed is defined as any spatial area from which rain or irrigation
water is collected and drained through a common point. The watershed
framework provides a logical unit for the integration of the sustainable
use of land and water. It helps augment soil and groundwater resources. It
also enjoins the biophysical, social and economic inputs, which if
optimally managed, lead to diversified high agricultural production,
control of environmental degradation and provide a mechanism for the
recharge of groundwater aquifers.
Watershed
thus ensure water adequacy to crops and reduce the risks of yield loss due
to water related stresses. In watershed area only 20-30% retain in the
soil and remaining waste as evaporation or as run off. The main aim is to
manage the land and water resources for sustained production. Therefore,
it is important to conserve water in situ and made available to the crops.
To use available water efficiently in watershed area crop planning should
be according to soil type and depth for irrigating the crop and using
available water efficiently. If there is limited irrigation the water
should be applied at the critical stage of crop.
S.
N. |
Soil
Type |
Soil
Depth (cm) |
Crops
to be taken |
1. |
Very
shallow |
Less
than 7.5 |
Grasses, Agro
forestry, and rainfed fruit trees |
2. |
Shallow |
7.5-22.5 |
Grasses, horse
gram(hulga),kidney bean(matki),castor(erandi),agroforestry,rainfed
fruit trees |
3. |
Medium
deep |
22.5-45 |
Contour and
continuos strips sowing bajra, jowar, sunflower, red gram (tur),
castor (erandi), groundnut, black gram (udid), green gram (mung),
bajra + tur or sunflower + tur (2:1 inter cropping), under
irrigation – wheat, gram, sunflower and vegetables etc. |
4. |
Medium
deep |
45-60 |
Kharif jowar,
red gram (tur), cotton, groundnut, black gram(udid),rabi jowar,gram,
safflower .sunflower,under
irrigation- wheat, gram, sunflower, summer ground nut,
vegetable etc. |
5. |
Deep |
More
than 60 |
All kharif
crops, crop rotation, under
irrigation – wheat, gram, sunflower, summer groundnut,
vegetable etc. |
|
Ag.
Technologies
(Agricultural
Engineering)
|