Grants for organic farmers engaged in extensive vine dryland crop cultivation would improve the environmental efficiency of agriculture. This, together with the fact that organic farmers attain more output for the same amount of inputs, suggest that organic
cultivation could be an efficient system for maintaining sustainable agriculture in arid regions. However, we have found that organic vine farmers have achieved better results increasing output efficiency per environmental impact than controlling pollutant
emissions per unit of input. This might suggest that, in this specific case of extensive vine cultivation could be convenient to address part of organic subsidies to further improvements in the control of pollution from fertilizers and pesticides.