Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6363991 | Agricultural Water Management | 2014 | 15 Pages |
Abstract
Compared with the current practice, the FIFC decreased drainage and N leaching by 47% and 90% respectively, while maintaining the actual evapotranspiration (ETa). The RDI75 seems to be the most adequate for the studied agro-system since, in relation to the FIFC, it saved 13% of irrigation water with only 5% decrease in ETa. Furthermore, the 15% reduction in leaching, together with the 19% increase in soil OM mineralization optimized the trees N uptake. The study of three different N application rates for each irrigation scenario indicated that, to minimize residual storage, N should be applied according to plant needs, by using a real-time indicator based upon foliar analysis or the chlorophyll meter measurements.
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Authors
M.R. Cameira, A. Pereira, L. Ahuja, L. Ma,