Improvement and evaluation of slide irrigation design in the northern Delta clay soils

Abstract

A FIELD study was conducted in clay soil at Sakha farm, Kafr EL-Sheikh governorate in 2013/2014 and 2014/2015 growing seasons. The objective of this work is to evaluate the effect of level border irrigation system using (100m length and 7m width and 0.1% slope) under different irrigation water discharge (2.5, 3.5 and 4 L sec-1 m-1) and cutoff irrigation (100, 90 and 85% of border length) on the infiltration characteristics, intake family and some irrigation parameters under post irrigation of wheat crop. The most important results include that, the irrigation at 4L/sec./m greatly affected the basic infiltration rate and cumulative infiltrated depth. Intake rates were decreased under water discharge and cutoff irrigation conditions in both seasons. The irrigation discharge at 4L/sec./m combined with cutoff at 85% of border length, the designed inflow time, deep percolation and runoff values were decreased, while water application efficiency was increased. The design ratio of inflow time to advance time is more than 2, meanwhile, the application time increased over the advance time, in this case the design is acceptable in clay soil. The measured irrigation stream was more than the design one, this caused increasing the amount of water applied. The design advance, recession and opportunity intake time were more than the measured one.It can be concluded that the design of border irrigation under different irrigation discharge and cutoff irrigation is reasonably efficient and values of different parameters fall within all the design limitations.

Soil Conservation Service (Scs) as a Tool for Proper Design of Cotton-Furrow Irrigation in Clay Soil

“…The furrow length and application discharge are the main factors affecting application efficiency in design of furrow irrigation in clay soil (Eldeiry et al, 2005, Gillies et al, 2008. The design of border irrigation under different irrigation discharge and cut-off irrigation is reasonably efficient and values of different parameters fall within all the design limitations (Khalifa et al, 2018).…”

Furrow irrigation design and evaluation for enhancing indices of water usage performance and productivity of canola crop in North Nile Delta soils

“…The effects of a level border irrigation system with varying water output and cut-off irrigation on the infiltration process, intake family, and irrigation efficiency for wheat crop were examined by Khalifa et al (2018). They stated that, despite certain drawbacks, the border irrigation design was comparatively efficient.…”