|Author:||Jalota, S. K. ; Anil, Sood ; Harman, W. L.|
|Book Group Author:||NA|
Shrinking water resources in northwest India calls for diversification from a rice-wheat cropping system to low-water-requiring crops and development of water-efficient technologies in Punjab state. Chickpea, because of its lower water demand (evapotranspiration) and irrigation requirement has been identified as a suitable alternate crop to wheat. Simulations, averaged over 18 years, using the CROPMAN model indicated that the yield of chickpea on coarse- to medium-textured soils was higher in a rice-chickpea cropping system compared with maize-chickpea and mung-chickpea systems because of increased availability of water. Yield response of chickpea to irrigation depended upon soil texture, the timings and number of irrigations. The optimum yield (2 t ha-1) on coarse- to medium-textured soils after rice can be obtained with one heavy pre-plant and two post-plant irrigations, i.e., one in mid-February and one in mid-March synchronizing irrigations with flowering and grain development stages. Grain yield with irrigation water followed a quadratic function and linear with evapotranspiration. Water use efficiency and evapotranspiration was curvilinear. Grain yield was significantly sensitive to water stress during the pod setting to grain development period irrespective of soil texture.
|Pages:||312 - 320|
|Journal:||Agricultural Water Management|
chickpeas, crop yield, cropping systems, evapotranspiration,irrigation water, loam soils, plant water relations, rain, rice,rotations, sandy loam soils, simulation, simulation models, soiltexture, soil types, water use efficiency, India, Cicer arietinum,Oryza, Oryza sativa, Cicer, Fabaceae, Fabales, dicotyledons,angiosperms, Spermatophyta, plants, South Asia, Asia, DevelopingCountries, Commonwealth of Nations, Oryza, Poaceae, Cyperales,monocotyledons, Punjab (India), Field Crops (FF005) (New March 2000),Plant Physiology and Biochemistry (FF060), Plant Water Relations(FF062), Plant Production (FF100), Plant Cropping Systems (FF150), SoilPhysics (JJ300), Soil Water Management (Irrigation and Drainage) (JJ800)(Revised June 2002) [formerly Soil Water Management], Mathematics andStatistics (ZZ100)