@article{fdi:010060826,
  title = {{A} new irrigation priority index based on remote sensing data for assessing the networks irrigation scheduling},
  author = {{B}elaqziz, {S}. and {K}habba, {S}. and {E}r-{R}aki, {S}. and {J}arlan, {L}ionel and {L}e {P}age, {M}. and {K}harrou, {M}. {H}. and {E}l {A}dnani, {M}. and {C}hehbouni, {A}bdelghani},
  editor = {},
  language = {{ENG}},
  abstract = {{I}rrigation scheduling has become an important tool that significantly influences growth, development and production of crops, especially in arid and semi-arid regions of the {S}outh {M}editerranean. {I}n these regions, most of the irrigation scheduling of the gravity irrigation networks are not optimized in terms of timing and water quantity. {I}n this paper, we present a way of characterizing the irrigation distribution by the extensively used irrigation systems through a new irrigation index: the "irrigation priority index" ({IPI}). {T}his normalized indicator takes into account the water stress coefficient and the time of irrigation with regard to the duration of an irrigation round. {T}he {IPI} ranges between -1 and 1 and decreases with irrigation priority. {T}he {IPI} was used to evaluate the actual irrigation scheduling in an irrigated perimeter of 2800 ha of {T}ensift {A}l {H}aouz plain close to {M}arrakech in {M}orocco during the 2002-2003 winter wheat season. {T}he obtained results showed that about 32% of the {R}3 zone plots receive late irrigation, when the stress was maximum ({IPI} less than -0.3). {T}he sensitivity of grain yield to the {IPI} values was evaluated on a data set of wheat yields acquired on the 2008-2009 season. {T}he spatial yield was simply calculated using a linear relationship between wheat yields and the spatial accumulated {NDVI} ({N}ormalized {D}ifference {V}egetation {I}ndex) of the last 10 days of {M}arch ({R}-2 = 0.84). {T}he result showed a clear relationship between grain yield and [{PI}. {I}ndeed, with significantly positive {IPI}10.37, 0.63], production ranged from 3.8 to 4.7 t/ha, whereas, it was less than 2.6 t/ha when the {IPI} values are ranged from -0.52 to -0.16.},
  keywords = {{G}ravity irrigation network ; {I}rrigation priority index ; {R}emote sensing ; {Y}ield ; {W}heat},
  booktitle = {},
  journal = {{A}gricultural {W}ater {M}anagement},
  volume = {119},
  numero = {},
  pages = {1--9},
  ISSN = {0378-3774},
  year = {2013},
  DOI = {10.1016/j.agwat.2012.12.011},
  URL = {https://www.documentation.ird.fr/hor/fdi:010060826},
}