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Abstract
The intensification of agricultural systems including sequential double-crops provides a reliable platform to increase the water and solar radiation use in many humid temperate areas of South America, which are predominantly dominated by soybean as a sole crop. Our aim was to evaluate water and solar radiation productivity, as a measure of the whole system efficiency, in sole-crops and double-crops in a humid temperate area of Argentina (31.5º S, 60.3º W, [ver mas...]
dc.contributor.authorVan Opstal, Natalia Veronica
dc.contributor.authorCaviglia, Octavio
dc.contributor.authorMelchiori, Ricardo Jose
dc.date.accessioned2020-04-07T13:10:33Z
dc.date.available2020-04-07T13:10:33Z
dc.date.issued2011-12
dc.identifier.issn1835-2693
dc.identifier.issn1835-2707
dc.identifier.urihttp://hdl.handle.net/20.500.12123/7051
dc.identifier.urihttp://www.cropj.com/opstal_5_13_2011_1760_1766.pdf
dc.description.abstractThe intensification of agricultural systems including sequential double-crops provides a reliable platform to increase the water and solar radiation use in many humid temperate areas of South America, which are predominantly dominated by soybean as a sole crop. Our aim was to evaluate water and solar radiation productivity, as a measure of the whole system efficiency, in sole-crops and double-crops in a humid temperate area of Argentina (31.5º S, 60.3º W, 110 m.a.s.l). An experiment including spring wheat, flax, rapeseed, peas and soybean as sole-crops and the sequential combination of winter crops with soybean as a second crop was carried out during the 2007/08 cropping season. We measured soil water content and solar radiation interception in order to estimate crop evapotranspiration and total intercepted solar radiation as a measure of the total captured resource by crops. Water and radiation use efficiencies were calculated as a ratio between grain yield and the captured resource. Water and solar radiation productivity were calculated as the product of the proportion of annual offer (rainfall or incident solar radiation) of the resources captured by crops, i.e. the capture efficiency and the resource use efficiency to produce grain yield. Capture efficiency was higher in double-crops than in sole-crops (average 0.99 vs. 0.51 for water and 0.41 vs. 0.18 for solar radiation). In contrast, the averages of resource use efficiency recorded were similar in sole- and double-crops (average 0.85 g m-2 mm-1 for water and 0.58 g MJ-1 for solar radiation). Therefore, water and radiation productivity were associated mainly with resource capture. The inclusion of double-crops led to a more efficient use of the annual offer of resources as reflected by the increased water and radiation productivity in double-crops as compared with sole-crops. Therefore, double cropping appears as a feasible option to increase the whole system efficiency and to improve the return of crop residues as compared with the simplified systems based on soybean of South America.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSouthern Cross Publishinges_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.sourceAustralian Journal of Crop Science 5 (13) : 1760-1766 (2011)es_AR
dc.subjectAguaes_AR
dc.subjectWatereng
dc.subjectRadiación Solares_AR
dc.subjectSolar Radiationeng
dc.subjectCultivoses_AR
dc.subjectCropseng
dc.subjectTemperaturaes_AR
dc.subjectTemperatureeng
dc.subjectZona Húmedaes_AR
dc.subjectHumid Zoneseng
dc.subjectEficacia en el Uso del Aguaes_AR
dc.subjectWater Use Efficiencyeng
dc.titleWater and solar radiation productivity of double-crops in a humid temperate areaes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Paranáes_AR
dc.description.filFil: Van Opstal, Natalia Veronica. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentinaes_AR
dc.description.filFil: Caviglia, Octavio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Melchiori, Ricardo Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentinaes_AR
dc.subtypecientifico


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