Effect of irrigation uniformity on the profitability of crops

摘要: Abstract There are numerous models capable of simulating crop behavior under different water stress conditions. However, none them takes into account the effect irrigation uniformity on yield. The model developed simulates yield and repercussion gross margin (GM). application to a maize in Albacete (Spain) indicates that for same depth, an increase soil (CU) corresponds 4% common strategy area, 6.8% optimal schedule established by model. Values percentage adequately irrigated area (a) between 50 80% appear be adequate values CU > 80%. This has special relevance GM mainly when designing areas with limited resources. leads improvement CU from 75 95% depth applied may up 27%. For small depths, is reduced. maximum reached at ET /ET m