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(Location: IWMI-HQ Call no: 631.7.1 G635 BHA Record No: H0542)
2 Sarma, P. B. S.; Rao, N. H.; Sharma, R. K.; Micheal, A. M. 1982. Water management in canal command areas: A case study of Paladugu Major Nagarjuna Canal Command Area, Andhra Pradesh. New Delhi, India: Indian Agricultural Research Institute. Water Technology Centre. 95p. (Technical report no.HYD-7)
(Location: IWMI-HQ Call no: 631.7.8 G635 SAR Record No: H010583)
(Location: IWMI-HQ Call no: P 3455 Record No: H014586)
4 Sharma, R. K.; Sharma, T. K. 1990. Textbook of irrigation engineering. Volume I: Irrigation and drainage. New Delhi, India: Oxford and IBH Publishing Co. x, 333p.
(Location: IWMI-HQ Call no: 631.7.1 G000 SHA Record No: H017095)
5 Sharma, R. K.; Sharma, T. K. 1992. Textbook of irrigation engineering. Volume II - Dam engineering including water power engineering. New Delhi, India: Oxford & IBH Publishing Co. xvii, 356p.
(Location: IWMI-HQ Call no: 631.7.1 G000 SHA Record No: H017161)
6 Sharma, R. K.; Sharma, T. K. 1993. Textbook of irrigation engineering. Volume III - Canal structures including river engineering. New Delhi, India: Oxford & IBH Publishing Co. xx, 278p.
(Location: IWMI-HQ Call no: 631.7.1 G000 SHA Record No: H017162)
7 Kumar, P.; Sharma, R. K.. 2003. Spatial price integration and pricing efficiency at the farm level: A study of paddy in Haryana. Indian Journal of Agricultural Economics, 58(2):1-233.
(Location: IWMI-HQ Call no: PER Record No: H033142)
(Location: IWMI HQ Call no: e-copy only Record No: H049170)
(0.36 MB)
Wheat is the second most important food crop in India and world. One of the major difficulties faced in the wheat growing regions is the depletion of water resources at an alarming rate. This study was conducted to test the hypothesis that the use of the reduced amount of irrigation water would maintain the grain yield of popular Indian wheat variety HD2967. Water use, crop yield and water use efficiency of wheat were evaluated for three consecutive years under thirteen different irrigation treatments. Highest yield (5372.4 kgha-1 ) was recorded when crop was irrigated with full irrigation (60 mm of water at all five critical crop growth stages); which were statistically at par to yields recorded under 25% deficit irrigation (45 mm) at all growth stages. The treatment with 50% irrigation (30 mm) at all five growth stages although saved 50% water, yield penalty was also significant (4788.1 kgha-1 = 10.9% loss). Treatments with normal recommended practice (60 mm) have achieved lower water use efficiency (WUE) values (1.88 kg m-3) whereas, 25% deficit irrigation i.e. 45 mm at all five stages recorded significantly higher WUE (2.23 kgm-3) in sandy loam soils. The treatment where a total of 750 m3 water was saved per hectare was the most remunerative option in addition to saving of cost on water, electricity and labour. Adoption of 45 mm irrigation at all crop growth stages can enhance both irrigation water use efficiency without any yield penalty and can be adopted as a water saving mechanism in the regions of depleting water resources.
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