Research of Flow Adaptive Function and Structure Design for Subsurface Drip Irrigation Emitter
According to the application style and technical character-istics in surface irrigation and subsurface irrigation, we analyze the function of flow adaptive for emitter based on understanding the development present situation of subsurface drip irrigation system and emitter. At the theory of soil moisture, we put forward a specific measures about realizing the capacity adaptive function to emitter, that is, a kind of emitter with flow adaptive function for subsurface drip irrigation has been designed. This emitter takes the soil negative pressure as power, the soil moisture as control condition, the actual water requirement of crop as the final control object, and its drip status is controlled by the changes of elastic membrane in it. So the emitter can reflect the change of soil moisture automaticly and real-timely, with obvious function of self-adjusting current capcacity.
adaptive subsurface drip irrigation emitter soil nega-tive pressure
FENG Jun-jie FEI Liang-jun DENG Zhong ZHAI Guo-liang LIU Yang ZHAO Hong-shu
Institute of Water Resources and Hydro-electric Engineering. Xian University of Technology. Xian. Farmland Irrigation Research Institute. Chinese Academy of Agricultural Sciences. Xinxiang, China 45
国际会议
山东淄博
英文
377-381
2011-05-27（万方平台首次上网日期，不代表论文的发表时间）