Affiliations: School of Civil Engineering, Shanmugha Arts, Science,
Technology & Research Academy (SASTRA) Thanjavur, Tamil Nadu-613 402,
India | Department of Civil Engineering, National Institute of
Technology Tiruchirappalli-620 015, India | Department of Civil Engineering, Government
Polytechnic College Tiruchirappalli-620 015, India | Department of Civil Engineering, Meenakshi College of
Engineering Uthiramerur Taluk, Kanchipuram, Tamil Nadu, India
Abstract: Almost every plant process is affected directly and indirectly by
the water supply. At present we are undergoing water scarcity condition due to
increase in water demand for irrigation, domestic, industrial and other
sectors. Availability of water remains almost constant making water deficit to
go on increasing. In order to reduce water deficit between the water demand and
water supply we have to think of water management techniques. The experiment
was conducted in the demonstration-cum-research farm located in the eastern
side of the campus of National Institute of Technology, Tiruchirappalli, India
during July 2002 to December 2002. Staggered sowing/planting dates were tried
in short-term variety ADT-36. Eight plots for each variety were used. Two
phases of staggering were tried with an interval of one week between them. For
normal cropping four plots were allotted. For Staggered-I cropping and
Staggered-II cropping two plots apiece were allotted. Crop water requirement
for different phases of planting was compiled and crop water requirement at
aggregate level was found. In ADT-36, the monthly peak water demand for
Staggered-I cropping and Staggered-II cropping were estimated. The peak water
demand gets reduced in staggered cropping; however these were still less than
peak water demand of normal cropping.
Keywords: Paddy, staggering, peak water demand, ADT-36
