000161032 001__ 161032
000161032 005__ 20251017144555.0
000161032 0247_ $$2doi$$a10.1016/j.agwat.2018.03.025
000161032 0248_ $$2sideral$$a113122
000161032 037__ $$aART-2018-113122
000161032 041__ $$aeng
000161032 100__ $$aZapata, N.$$uUniversidad de Zaragoza
000161032 245__ $$aLow-pressure sprinkler irrigation in maize: differences in water distribution above and below the crop canopy
000161032 260__ $$c2018
000161032 5060_ $$aAccess copy available to the general public$$fUnrestricted
000161032 5203_ $$aReducing the working pressure at the sprinkler nozzles is one of the alternatives to reduce energy requirements in solid-set sprinkler irrigation systems. Previous studies reported ≈10% lower seasonal Christiansen uniformity coefficient (CUC) for low-pressure treatments than for standard treatments, but no differences in maize yield. This research analyses the effect of maize canopy water partitioning on irrigation performance indexes (CUC and wind drift and evaporation losses, WDEL). Three irrigation treatments were considered, based on the working pressure: 1) A standard brass impact sprinkler operating at a pressure of 300 kPa (CIS300); 2) A standard brass impact sprinkler operating at a pressure of 200 kPa (CIS200); and 3) A modified plastic impact sprinkler (with a deflecting plate attached to the drive arm) operating at a pressure of 200 kPa (DPIS200). Irrigation performance was measured using a catch-can network located above the maize canopy (CUCac, WDELac) along the whole crop season and using stemflow and throughfall devices below the maize canopy (CUCbc, WDELbc) in eight irrigation events. Maize growth, yield and its components were measured. Under low-wind and fully developed canopy conditions (a frequent situation for maize irrigation), CUCbc resulted higher than CUCac for the low-pressure treatments, while the opposite was observed for the standard pressure treatment. Maize canopy partitioning reduces the differences in irrigation performance indexes between pressure treatments, explaining why there are no differences in grain yield between them. Caution should be used when measuring sprinkler irrigation performance above tall canopies, since the elevation of the catch-cans and the crop canopy partitioning affect performance estimations.
000161032 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/AGL2013-48728-C2-1-R
000161032 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000161032 590__ $$a3.542$$b2018
000161032 591__ $$aAGRONOMY$$b9 / 89 = 0.101$$c2018$$dQ1$$eT1
000161032 591__ $$aWATER RESOURCES$$b12 / 91 = 0.132$$c2018$$dQ1$$eT1
000161032 592__ $$a1.403$$b2018
000161032 593__ $$aAgronomy and Crop Science$$c2018$$dQ1
000161032 593__ $$aWater Science and Technology$$c2018$$dQ1
000161032 593__ $$aSoil Science$$c2018$$dQ1
000161032 593__ $$aEarth-Surface Processes$$c2018$$dQ1
000161032 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000161032 700__ $$0(orcid)0000-0003-1556-555X$$aRobles, O.
000161032 700__ $$aPlayán, E.
000161032 700__ $$aPaniagua, P
000161032 700__ $$aRomano, C.
000161032 700__ $$aSalvador, R.
000161032 700__ $$aMontoya, F.
000161032 7102_ $$15011$$2X$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cÁrea Administrativa
000161032 773__ $$g203 (2018), 353-365$$pAgric. water manag.$$tAgricultural Water Management$$x0378-3774
000161032 8564_ $$s228510$$uhttps://zaguan.unizar.es/record/161032/files/texto_completo.pdf$$yPostprint
000161032 8564_ $$s877883$$uhttps://zaguan.unizar.es/record/161032/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000161032 909CO $$ooai:zaguan.unizar.es:161032$$particulos$$pdriver
000161032 951__ $$a2025-10-17-14:12:52
000161032 980__ $$aARTICLE