In this paper we provide an alternative method of construction for incomplete block designs used for varietal trails by using designs for factorial experiments where the level codes of the factors are modified. By this method many existing designs are obtained quite simply and some new designs...

Irrigated agriculture in Oman relies solely on groundwater and Aflaj (Falaj is a canal system, which provides water for a community of farmers for domestic and agricultural use). With the increasing scarcity of freshwater available to agriculture, the need to use of reclaimed water (RW) from...