Artículos de revistas
Water stress indices for the sugarcane crop on different irrigated surfaces
Fecha
2016-10-01Registro en:
Revista Brasileira De Engenharia Agricola E Ambiental. Campina Grande Pb: Univ Federal Campina Grande, v. 20, n. 10, p. 925-929, 2016.
1807-1929
10.1590/1807-1929/agriambi.v20n10p925-929
S1415-43662016001000925
WOS:000385553400011
S1415-43662016001000925.pdf
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
Sugarcane (Saccharum officinarum L.) is a crop of vital importance to Brazil, in the production of sugar and ethanol, power generation and raw materials for various purposes. Strategic information such as topography and canopy temperature can provide management technologies accessible to farmers. The objective of this study was to determine water stress indices for sugarcane in irrigated areas, with different exposures and slopes. The daily water stress index of the plants and the water potential in the soil were evaluated and the production system was analyzed. The experiment was carried out in an Experimental Watershed, using six surfaces, two horizontal and the other ones with 20 and 40% North and South exposure slopes. Water stress level was determined by measuring the temperatures of the vegetation cover and the ambient air. Watering was carried out using a drip irrigation system. The results showed that water stress index of sugarcane varies according to exposure and slope of the terrain, while areas whose water stress index was above 5.0 degrees C had lower yield values.