Plugging of Microirrigation System and Its Prevention

Based on the water quality classification and the various factors of plugging in microinrrigation system， the cause, the essential affecting factors and the preventing measures were summrized systematically． To prevent the plugging，it is important to pay attention to the water pretreatment， improvement of equipment, good programming design and management． Practical and useful method and recomendations for plugging prevention were presented too.