|Book Group Author:||NA|
An experiment was conducted during 1998-99 and 1999-2000 in Sriganganagar, Rajasthan, India, to study the effect of irrigation schedule (irrigation at irrigation water:cumulative pan evaporation (IW:CPE) of 0.6, 0.9 and 1.2 and at 21-day interval) and trash mulch (no mulch, and mulch at 3 and 6 tonnes/ha) on 'Co 66-17' sugarcane (S. officinarum) ratoon. The cane yields of 498.6 and 499.8 q/ha recorded, respectively, at IW:CPE of 0.9 (18 irrigations) and 1.2 (23 irrigations) were at par and significantly superior to that of 0.6 ratio and irrigations applied at 21-day interval. Trash mulching at 6 tonnes/ha resulted in significantly higher cane yield (566.5 q/ha) over mulching at 3 tonnes/ha (493.8 q/ha) and no mulch control (410.8 q/ha). Irrigation scheduled at 0.9 IW:CPE along with trash mulching at 6 tonnes/ha recorded the highest cane yield (574.0 q/ha) as well as 23% saving in irrigation water. The water-use efficiency and net return per unit quantity of water applied decreased markedly with an increase of irrigation regime from IW:CPE of 0.6 to 1.2. Benefit:cost ratio, net returns, and water-use efficiency increased substantially with trash mulching.
|Pages:||561 - 565|
|Journal:||Indian Journal of Agronomy|
cost benefit analysis, crop yield, growth, irrigationscheduling, irrigation water, mulches, mulching, plant water relations,returns, sugarcane, water use efficiency, India, Rajasthan, Saccharum,Saccharum officinarum, Poaceae, Cyperales, monocotyledons, angiosperms,Spermatophyta, plants, eukaryotes, Saccharum, South Asia, Asia,Developing Countries, Commonwealth of Nations, India, mulchingmaterials, Agricultural Economics (EE110), Natural Resource Economics(EE115) (New March 2000), 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], Soil Management (JJ900)