Advance Time to Determine Injection and Flushing Times in Drip Fertigation

Drip fertigation has shown unquestionable benefits in recent decades compared to traditional farming fertilization practices. However, a fertilizer dissolved the irrigation water must be evenly distributed fertigated area. Irrigation system and characteristics operational management potentially affect uniformity of distribution. Advance time (AT), which is an intrinsic determinable characteristic system, not been assessed as useful technical criterion for managing distribution drip fertigation. The objective this study was assess use advance determining duration injection flushing that provides satisfactory spatial Therefore, potassium chloride (KCl) evaluated at six times equivalent 25, 50, 75, 100, 150, 200% AT, two 100 AT through Christiansen’s coefficient (CU) (DU). used had 10 strips with 12.5 m length, flow rate 1.40 L h−1 per dripper, min. solution prepared 40 g L−1 KCl. results indicate KCl improved significantly increasing time. promoted greatest CU 0.977 DU 0.962. 100% sufficient rinse 0.983. In both tests, satisfactory, 0.988 0.982 (average). more way fertilizer.