Thar Desert are good as fencing material. Its roots also encourage "nitrogen" fixation, which produces higher crop yields. "Tecomella undulata" is one more tree species, locally known as Rohida, which is found in Thar Desert regions of northwest and western India. It is another important medium-sized tree of great use in Agroforestry, that produces quality timber and is the main source of timber amongst the indigenous tree species of desert regions. The trade name of the tree species is Desert teak or Marwar teak. "Tecomella undulata" is mainly used as a source of timber. Its wood is strong, tough and durable. It
Thar Desert areas. It is world's largest irrigation which is being extended in an attempt to make the desert arable. It runs south-southwest in Punjab and Haryana but mainly in Rajasthan for a total of 650 kilometers and ends near Jaisalmer, in Rajasthan. After the construction of the Indira Gandhi Canal, irrigation facilities were available over an area of 6770 km² in Jaisalmer district and 37 km² in Barmer district. Irrigation had already been provided in an area of 3670 km² in Jaisalmer district. The canal has transformed the barren deserts of this district into rich and lush fields. Crops of mustard,