Parcial root drying as a new irrigation method for potato
2009
Jovanovic, Z., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Stikic, R., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Brocic, Z., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Matovic, G., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Rovcanin, S., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Mojevic, M., Faculty of Agriculture, East Sarajevo (Bosnia and Herzegovina)
Partial rootzone drying (PRD) is a new water-saving irrigation strategy that requires that the roots are simulataneously exposed to both dry and wet soil zones. This technique is now undergoing extensive trials with a range of agricultural crops and these results showed significant benefit in increasing water use efficiency. The field potato (Solanum tuberosum L. cv. Liseta) experiment was conducted during 2006. Subsurface drip irrigation was used. In he season PRD plants received 70% of fully irrigated (FI). Plant growth and biomass production were followed in the tuber bulking phase. At a final harvest, the effects of PRD and FI irrigation on total and marketable yield were investigated and irrigation water use efficiency was calculated (IWUE). In comparison to FI, PRD treatment saved 26% of irrigation water, while maintaining similar yield resulting in 24% increase in IWUE.
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