Record Details

Evaluating alternatives to rice-wheat system in western Indo-Gangetic Plains: Crop yields, water productivity and economic profitability.

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Evaluating alternatives to rice-wheat system in western Indo-Gangetic Plains: Crop yields, water productivity and economic profitability.
Not Available
 
Creator KM Choudhary
HS Jat
DP Nandal
DK Bhishnoi
JM Sutaliya
M Choudhary
PC Sharma
ML Jat
 
Subject Conservation agriculture
Crop establishment
Maize-wheat system
Mungbean integration
Precision water management
Residue management
Sustainable intensification
Tillage
 
Description Not Available
Serious water deficits, diminishing profitability and deteriorating natural resources are threatening agricultural
sustainability in many regions of South Asia. High water input and low water productivity of conventional
irrigated rice–wheat (RW) systems has led to the depletion of surface water and ground waters in northwest
India. Conservation agriculture (CA) practices with precision irrigation management and replacing rice with low
water requiring maize crop may help to achieve sustainable crop production in the western Indo-Gangetic Plains (IGP) of India. A three-year field experiment was conducted to evaluate the effect of CA-based management (tillage, crop establishment, residue management mungbean integration), precision water management on crop and water productivity, and economic profitability in RW and maize-wheat (MW) systems. The treatments for RW systems included: (i) conventional till rice-wheat with irrigation scheduling at critical growth stages (CTRW); (ii) CTRW+mungbean (CTRW+MB); (iii) Zero-till RW with residue retention ( +R) scheduling precise irrigation (PI) based on soil matric potential approach (ZTRW+R+PI); and (iv) ZTRW+MB+R+PI. A similar set of treatments was evaluated for MW systems, except the crops were established on raised fresh beds (FB) and permanent beds (PB). Treatment PBMW+MB+R+PI recorded 38% higher system productivity, saved 1660mm of irrigation water, increased irrigation+rainfall water productivity (WPI+R,) by 270% and increased net returns by 84% compared to CTRW. ZTRW+MB+R+PI recorded 24, 41 and 37% (3 yrs’ mean) higher system productivity, WPI+R and net returns, respectively, compared to CTRW. System productivity was increased by 19 and 33%, WPI+R by 223 and 29% and net returns by 84 and 57% with ZTRW and PBMW compared to CTRW, respectively irrespective of MB integration and residue management. On average, inclusion of MB in cereal systems (RW/MW) contributed an 18% increase in system productivity and a 15% increase in net returns. CA based sustainable intensification of MW systems (PBMW+MB+R+PI) is a better alternative to RW system (ZTRW+MB+R+PI) as it provides opportunities for saving 79% of precious water, enhancing crop and water productivity by 12 and 145%, respectively along with high (34%) economic benefits thereby helping to arrest decline in ground water table in the North-West IGP of India.
Not Available
 
Date 2018-09-14T05:46:02Z
2018-09-14T05:46:02Z
2018
 
Type Research Paper
 
Identifier Choudhary, K.M., Jat, H.S., Nandal, D.P., Bishnoi, D.K., Sutaliya, J.M., Choudhary, M., Sharma, P.C. and Jat, M.L., 2018. Evaluating alternatives to rice-wheat system in western Indo-Gangetic Plains: Crop yields, water productivity and economic profitability. Field Crops Research, 218, pp.1-10.
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/6789
 
Language English
 
Relation Not Available;
 
Publisher Elsevier