Record Details

Water budgeting in a carp-prawn polyculture system: impacts on production performance, water productivity and sediment stack

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Water budgeting in a carp-prawn polyculture system: impacts on production performance, water productivity and sediment stack
Not Available
 
Creator Rajeeb K Mohanty
Atmaram Mishra
Dileep K Panda
Dhiraj U Patil
 
Subject water budgeting
water productivity
Indian major carp
growth performance
sedimentation rate
 
Description Not Available
This study was designed to quantify the total water requirement and consumptive water use in carpprawn
polyculture system under different water management protocols, using water balance model. Under different water management protocols, treatment-wise estimated total water use, TWU (9104, m3) was 3.7, 4.6 and 3.9, while the computed consumptive water use index, CWUI (m3/kg biomass) was 6.62, 9.31 and 7.08, in T1 (no water exchange), T2 (periodic water exchange) and T3 (regulated water exchange) respectively. Significantly
higher yield (P < 0.05) in both T2 and T3 over T1, was probably due to water exchange that improved the rearing environment. Although intensity of water exchange was more in T2, significant variation (P < 0.05) in overall growth and yield was not recorded between T2 and T3. Treatmentwise sediment load ranged between 54.6 and 71.3 m3/t biomasses. Higher sediment load was recorded at lower intensity of water exchange as
well as with higher apparent feed conversion ratio. Higher net total water productivity, net consumptive water productivity and OV-CC ratio in T3 infers that regulated water exchange has a distinct edge over the no water exchange protocol. Restricted water use instead of regular/excess water exchange not only improves the production performance and water productivity, but also helps in lessening the operational pumping cost.
Not Available
 
Date 2018-07-28T04:13:53Z
2018-07-28T04:13:53Z
2014-11-27
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/6331
 
Language English
 
Relation Not Available;
 
Publisher Wiley Online Library