1. Dep. of Environmental Hydrology & MicrobiologyZuckerberg Institute for Water Research, Blaustein Institutes for Desert Research, Ben‐Gurion Univ. of the NegevSede Boqer Campus 84990Israel
2. Dep. of Crop & Soil Sciences, 3017 Agriculture and Life Sciences Bldg.Oregon State Univ.CorvallisOR97331