Some maintenance problems of the drip irrigation in Poland

Drip irrigation system will play in the future a significant role in fulfilling the requirements of intensive, energysaving agricultural production. Total area under microirrigation in Poland can be now estimated as about 10 000 hectares. Drip irrigation is applied mainly in orchards, vegetable farms and greenhouses. The investigations on drip irrigation have shown a high infl uence of the agricultural conditions on the operation and reliability and productivity effects of the irrigation system. Paper present the investigation of the operation of drip irrigation systems in various regions of Poland. The analysis is based on the results of the manufacture coefficient of variation Cv, emitter exponent n, uniformity coefficient and detailed observation of the work time, breaks, failures and any other damages to the system.