|Author:||Pal, R. K. ; Sharma, P. P. ; Poonia, B. L.|
|Book Group Author:||NA|
A field experiment was conducted during the rabi seasons of 2000 and 2001 at the Agricultural Research Station, Navgaon (Alwar) of Rajasthan, India, to evaluate the efficacy of sprinkler irrigation system against check basin method in terms of water saving, water use efficiency and yield of wheat crop. The treatments comprised nine schedules of sprinkler irrigation: (i) six irrigations (25, 45, 65, 85, 110 and 115 DAS) with 5, 6 and 7 operating hours; (ii) seven irrigations (20, 40, 60, 75, 90, 105 and 115 DAS) with 4, 5 and 6 operating hours; and eight irrigations (20, 35, 50, 65, 80, 95, 105 and 115 DAS) with 4, 5 and 6 operating hours. These schedules were compared with check basin method of recommended six irrigations corresponding to irrigation water depth of 425 mm. Sprinkler system was operated at 2.5 kg/cm2 maintaining 40% overlap of the spread area arranging the nozzles at 12 m distance during the treatments with sprinkler. The highest growth and yield parameters, namely plant height, tillers per metre row length, test weight and ear length culminating in the highest grain (4184 kg/ha) and straw yield (4979 kg/ha) were recorded with the traditional six irrigation check basin schedule. But at the same time it proved to be the most inefficient method of irrigation as it required substantially higher amount of water application (425 mm) resulting in lowest crop water use efficiency (9.4 kg/ha mm). The best schedule of irrigation was found to be 8-irrigation through sprinkler for 6 h at 12 m spacing of nozzle in sandy loam soils at 20, 35, 50, 65, 80, 95, 105 and 115 DAS operating the sprinkler system at 2.5 kg/cm2 pressure. This schedule resulted in 312 mm water depth, 13.2 kg/ha mm water use efficiency with 26.5% water saving resulting in marginal increase in net return (Rs. 553/ha) over traditional check basin method.
|Pages:||660 - 663|
|Journal:||Research on Crops|
basin irrigation, crop yield, economic analysis, growth,irrigation scheduling, irrigation systems, plant height, returns, sandyloam soils, soil types, sprinkler irrigation, straw, tillers, waterconservation, water use efficiency, wheat, wheat straw, India,Rajasthan, Triticum, Triticum aestivum, South Asia, Asia, DevelopingCountries, Commonwealth of Nations, India, Triticum, Poaceae, Cyperales,monocotyledons, angiosperms, Spermatophyta, plants, eukaryotes, checkbasin irrigation, spray irrigation, Field Crops (FF005) (New March2000), Plant Production (FF100), Soil Water Management (Irrigation andDrainage) (JJ800) (Revised June 2002) [formerly Soil Water Management],Agricultural and Forestry Equipment (General) (NN400), AgriculturalEconomics (EE110)