DCA Publikationer The gross- and net-irrigation requirements of crops and model farms with different root zone capacities at ten locations in Denmark 1990-2015 DCA rapport, nr. 112, 2018 Af Loraine ten Damme og Mathias Neumann Andersen ![]() The annual irrigation water requirement varied according to farm type (dairy, arable/pig and potatoes), location,soil type and especially year with more than 300%. Abstraction permits based on average values are deemed less suitable as they may restrict farmers’ production in one out of two years. When considering that many farmers’irrigation capacity is limited to about 3 mm/day, abstraction permits covering the irrigation requirement in 8 out of 10 years seems more appropriate in areas with sufficient water resources. |