TY - JOUR AU - Hanson, Blaine R. AU - Peters, Douglas AU - Orloff, Steve TI - Effectiveness of tensiometers and electrical resistance sensors varies with soil conditions JF - California Agriculture JO - Calif Agr Y1 - 2000/05/01 VL - 54 IS - 3 SP - 47 EP - 50 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://dx.doi.org/10.3733/ca.v054n03p47 L3 - 10.3733/ca.v054n03p47 AB - Tensiometers, gypsum blocks, Watermark blocks and an electromagnetic conductivity meter were evaluated for their response to changes in soil moisture content. Tensiometers and Watermark blocks had similar responses, but the blocks operated better than tensiometers in drier soil. Gypsum blocks did not respond until some threshold moisture content was reached. The electromagnetic conductivity meter responded to changes in moisture content in fine-textured soil, but it did not respond in sandy soil.