|Author:||Patel, G. R. ; Ghaghada, R. H. ; Mallik, M. ; Chalodia,A. L. ; Dabhi, B. M.|
|Book Group Author:||NA|
A field experiment was conducted at Junagadh Agricultural University, Gujarat, India, during 2003-2004, to determine the extent to which a trickle irrigation system can be utilized to increase groundnut production and water use efficiency at different irrigation levels. A subsurface irrigation system with a porous pipe was installed in a summer groundnut crop. The porous laterals (12 mm inside diameter) were buried at 15 to 30 cm below surface level at 0.6 m apart. The irrigation was applied at IW/CPE (irrigation water/cumulative pan evaporation) ratios of 0.4, 0.5, 0.6 and 0.7 in four replications. The irrigation water was supplied through an overhead tank (500-litre capacity) at 20-30 kPa pressure. The highest water use efficiency of 6.78 kg/ha per mm was found at IW/CPE=0.4 among the four irrigation levels for fodder yield. Similarly, the porous pipe with IW/CPE=0.4 gave the highest water use efficiency of 4.94 kg/ha per mm for pod yield. Water use efficiency for pod yield decreased with the increase in irrigation level. The highest fodder yield of 2610.43 kg/ha was obtained at IW/CPE=0.6.
crop production, crop yield, depth, fodder crops,groundnuts, irrigated farming, irrigation, irrigation requirements,irrigation scheduling, irrigation systems, irrigation water, pipes,plant water relations, pods, spacing, subsurface irrigation, trickleirrigation, water use efficiency, Gujarat, India, Arachis hypogaea,Arachis, Fabaceae, Fabales, dicotyledons, angiosperms, Spermatophyta,plants, India, South Asia, Asia, Developing Countries, Commonwealth ofNations, peanuts, watering, Field Crops (FF005) (New March 2000), PlantWater Relations (FF062), Plant Production (FF100), Soil Water Management(Irrigation and Drainage) (JJ800) (Revised June 2002) [formerly SoilWater Management], Agricultural and Forestry Equipment (General)(NN400), Forage and Fodder Crops (FF007) (New March 2000)