Gross Irrigation Demand April Schedule: Deficit By 20 Mm/Application

This data set contains the GROSS IRRIGATION DEMAND Schedule: Deficit by 20 mm/Application in South Africa. Gross irrigation demand is the gross irrigation water that needs to be abstracted from a source of water (e.g. dam) to satisfy the irrigated crop`s water requirement. In deficit irrigation, conveyance losses of 10% were assumed, while wind/spray drift losses were set at 12% (assuming overhead irrigation), with crop interception losses at 1.5 mm per irrigation application. The soil profile was depleted to 50% of plant available water (PAW), it was refilled to 20 mm below drained upper limit (DUL), thereby leaving voids which could be filled by rain.