Basically we would like to draw your attention that similar conditions exist in Saudi Arabia/Gaza/Israel etc yet they are able to grow plants and export its produce to many countries worldwide.
Their methods is an key to saving water and this has been implemeted in one big farm in N.India also.
This process is called Mulching using Mulch mats for each tree.I had done this for Kinnows plants in Haryana whose produce is being exported directly to USA -Many in India do not even know what is Kinnows fruits which is like oranges but are not oranges.
We used specially treated woven mats with special methods of laying on the ground around trees so that drip irrigation pipe passes beneath the mats.What happens is that the drip irrigation is operated once a day only.The moisture at roots is preserved and drawn by trees only when necessary.Retention of moisture keeps the ground live and fertilisers (if used ) will also percolate to the roots.
Specific advantages are:1.Water conservation. 2. Fertilisers evaporation is prevented due to this mat as cover.3.No parasite nematodes(white powder like marks on trees/leaves) can grab all the foods of the trees from roots.Trees stay healthy and the mats can be reused for two seasons-[b] roughly two years.4.Air exchange to roots will help in faster growth- not possible when films are used.
We do not advise use of plastic films as it is being banned by govts (plastic bags ban) , also it cannot withstand windy conditions on coasts and flyaway to be eaten by goats etc.