Soil water-balance-based approach for estimating percolation with lysimeter and in field with and without mulch under micro irrigation

Precise, accurate knowledge of percolation is key to reliable determination soil water balance and a crop’s water-use efficiency. This work evaluated an approach estimate the amount percolated in root zone using content (SWC) data measured at different time intervals. The was based on difference within below effective banana plants A drainage lysimeter used compare estimated data. then orchard under drip micro sprinkler irrigation, with without use mulch. storage banana’s two-dimensional profile domain reflectometry (TDR). Mean lysimeters did not differ from approach’s estimates intervals between SWC readings equal or longer than 6 h end irrigation event. Percolation field, mulch, were consistent those lysimeters, considering 6-h interval measurements. greater system influenced by presence mulch system.
 Keywords: localized balance, sensor.