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Conservation and efficient utilization of rainwater in the rainfed shallow lowland paddy fields of Eastern India

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Title Conservation and efficient utilization of rainwater in the rainfed shallow lowland paddy fields of Eastern India
Not Available
 
Creator Mishra, A., James, B. K., Mohanty, R.K. and Anand, P.S.B.
 
Subject Two-stage rainwater conservation Rice-fish farming Water productivity Weir height Rainfed rice lands
 
Description Not Available
A two-stage rainwater conservation technique
was intervened in the farmers field of rainfed shallow low
land, in which, part of the rainwater is conserved in rice
field up to the weir crest level and the remaining in a refuge
for rearing of fish (Catla catla, Labeo rohita, Cirrhinus
mrigala and Cyprinus carpio). The conserved rainwater in
the refuge is also used for giving supplemental irrigation to
rice crop during rainy season and growing a light duty crop
in winter season. On-farm experiment was conducted in the
farmer’s field for three consecutive years to study the scope
and feasibility of this technique in enhancing productivity
and cropping intensity. Three different weir heights (15, 20
and 25 cm) were considered as treatments with two replications
each. Refuge occupying areas of 5–8 % of the rice
field with a depth of 1.75 m were constructed at the
downstream side of each plot. As a result of this intervention,
the mono-cropped area could be gradually brought
under double cropping. The rice yield increased from 1.8 to
5.3 t/ha. Fish yield of as high as 1,693 kg/ha was obtained
for a fish rearing period of about 6 months. The net water
productivity increased from 3.76 to 7.38 Rs./m3
. The
highest net return of Rs. 63,572 was recorded in 20 cm
weir height plots with a benefit cost ratio of 2.60. The
system generated employment opportunity, increased
income for farmers and provided nutritional security.
Not Available
 
Date 2018-12-01T04:11:38Z
2018-12-01T04:11:38Z
2013-02-03
 
Type Research Paper
 
Identifier Mishra, A., James, B. K., Mohanty, R.K. and Anand, P.S.B. 2014. Conservation and efficient utilization of rainwater in the rainfed shallow lowland paddy fields of Eastern India. Paddy and Water Environment 12: 25-34.
1611-2504
http://krishi.icar.gov.in/jspui/handle/123456789/14699
 
Language English
 
Relation Not Available;
 
Publisher springer