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Remotely sensed data are often used as proxies for indirect precipitation measures over data-scarce and complex-terrain areas such as the Peruvian Andes. Although this information might be appropriate for some research requirements, the extent at which local sites could be related to such informa...


Posadas, A.Duffaut Espinoza, L.A.Yarleque, C.Carbajal, M.Heidinger, HalineCarvalho, L.Jones, C.Quiróz, R.[Spatial random downscaling of rainfall signals in Andean heterogeneous terrain.]Spatial random downscaling of rainfall signals in Andean heterogeneous terrain.

Soil carbon sequestration is one approach to mitigate greenhouse gases. However, to reliably assess the quantities sequestered as well as the chemical structure of the soil carbon, new methods and equipment are needed. These methods and equipment must allow large scale measurements and the constr...


Milori, D.M.P.B.Segnini, A.Silva, W.T.L. daPosadas, A.Mares, V.Quiróz, R.Martin-Neto, L.[Emerging techniques for soil carbon measurements]Emerging techniques for soil carbon measurements
Yactayo, W.Ramírez, D.Gutiérrez, R.Mares, V.Posadas, A.Quiróz, R.[Effect of partial root-zone drying irrigation timing on potato tuber yield and water use efficiency.]Effect of partial root-zone drying irrigation timing on potato tuber yield and water use efficiency.
Rodríguez Delfin, A.Posadas, A.León Velarde, C.Mares, V.Quiróz, R.[International Symposium on Soilless Culture and Hydroponics. Puebla (Mexico). 15-19 May 2011][Effect of salt and water stress on the proline and total chlorophyll content and nutrients uptake on two sweet potato cultivars grown on soilless culture.]Effect of salt and water stress on the proline and total chlorophyll content and nutrients uptake on two sweet potato cultivars grown on soilless culture.

Quiróz, R.Posadas, A.Yarleque, C.Heidinger, HalineBarreda, CarolinaRaymundo, R.Carbajal, M.Loayza, H.Tonnang, Henri E.Z.Kroschel, J.Forbes, G.Haan, Stef de[Retos para la produccion sostenible de papas en un clima cambiante: Una perspectiva de investigacion.]Retos para la produccion sostenible de papas en un clima cambiante: Una perspectiva de investigacion.

Segnini, A.Souza, A.A.Novotny, E.H.Bonagamba, T.J.Posadas, A.Quiróz, R.Milori, D.M.B.P.Neto, L.M.[Characterization of peatland soils from the high andes by <sup(13)>C NMR spectroscopy.]Characterization of peatland soils from the high andes by <sup(13)>C NMR spectroscopy.

Carvalho, Leila M. V.Jones, C.Posadas, A.Quiróz, R.Bookhagen, B.Liebmann, B.[Precipitation characteristics of the South American monsoon system derived from multiple data sets.]Precipitation characteristics of the South American monsoon system derived from multiple data sets.

Data acquisition for parameterization is one of the most important limitations for the use of potato crop growth models. Non destructive techniques such as remote sensing for gathering required data could circumvent this limitation. Our goal was to analyze the effects of incorporating ground-base...


Quiróz, R.Loayza, H.Barreda, CarolinaGavilán, C.Posadas, A.Ramírez, D.[Linking process-based potato models with light reflectance data: Does model complexity enhance yield prediction accuracy?]Linking process-based potato models with light reflectance data: Does model complexity enhance yield prediction accuracy?

Carbon accumulation and sequestration in Andean soils are scarcely documented. Carbon contents, carbon stocks, and stability were determined in five Peruvian agroecologies, along a 1,000 km (621 mi) transect covering the arid Pacific coast, the Andean high plateau, and the tropical highland rainf...


Segnini, A.Posadas, A.Quiróz, R.Milori, D.M.B.P.Vaz Patto, Maria CMartin-Neto, L.[Soil carbon stocks and stability across an altitudinal gradient in southern Peru]Soil carbon stocks and stability across an altitudinal gradient in southern Peru

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