Water reuse for irrigation in Jordan: plant beneficial nutrients, farmers' awareness and management strategies.
The reuse of treated wastewater (reclaimed water) is particularly well suited for irrigated agriculture as it often contains significant quantities of plant essential nutrients. This work has shown that reclaimed water in Jordan can have adequate concentrations of potassium, phosphate, sulphate and magnesium to meet all or part of the crop's requirements. To fully benefit from these inputs farmers must have an awareness of the water quality and reduce the application of inorganic fertilisers accordingly. Interviews with farmers have shown that 75 per cent of farmers indirectly using reclaimed water are aware of the nutrients. Farmers' decision making as to the application of inorganic fertilisers appears to be influenced by a range of factors which include the type of crops being cultivated, the provision of training on nutrient management and the availability of information on the nutrient content of the reclaimed water.
Centre for Water Resource Systems, Vienna University of Technology, Karlsplatz 13/222. carr@waterresources.at
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D057914:Agricultural Irrigation; D018556:Crops, Agricultural; D005308:Fertilizers; D007597:Jordan; D008274:Magnesium / Q000032:analysis; D010758:Phosphorus / Q000032:analysis; D011188:Potassium / Q000032:analysis; D013431:Sulfates / Q000032:analysis; D014867:Water
D005308:Fertilizers; D013431:Sulfates; D014867:Water; D010758:Phosphorus; D008274:Magnesium; D011188:Potassium