Abstract :
The infiltration characterstics and water distribution pattern were estimated with different depth of furrow and border irrigation system at research farm of indira gandhi agricultural university, Raipur (C.G.). The treatment included were four main treatments of method of raised bed furrow irrigation M1 (15 cm furrow depth), M2 (20 cm furrow depth), M3 (25 cm furrow depth) and M4 [border irrigation system (control)] under the three sub-treatments of maximum allowable depletion (MAD) T1 (Irrigation at 40% MAD), T2 (Irrigation at 50% MAD) and T3(Irrigation at 60% MAD ) in four row crop. The double ring infiltrometer method was used for measurement of infiltration rate. The study aimed to determine infiltration rate and water distribution pattern in different depth of furrow . The basic infiltration rate of soil varied from 0.58 to 0.66 cm/hr. Kostiakov infiltration equation (I=Kta) parameters (K and a) ranged from 1.531 to 1.606 and 0.212 to 0.231, respectively and soil moisture distribution was found minimum in 15 cm furrow depth. This moisture distribution pattern indicated that the lateral movement of water increases with increases depth of furrow.
Keyword :
Furrow, Border, MAD, Kostiakov – Lewis parameters, Infiltration, Infiltration rate