11 research outputs found
Evaluating the accuracy of soil water sensors for irrigation scheduling to conserve freshwater
Use of thermal units to estimate corn crop coefficients under semiarid climatic conditions
Water balance and crop coefficients of summer-grown peanut (Arachis hypogaea L.) in a humid tropical region of India
Tomato root distribution, yield and fruit quality under different subsurface drip irrigation regimes and depths
Fast shear behavior of granular materials in ring-shear tests and implications for rapid landslides
Water consumption of agriculture and natural ecosystems at the Amu Darya in Lebap Province, Turkmenistan
Effects of canopy size and water stress over the crop coefficient of a "Tempranillo" vineyard in south-western Spain
This paper describes the assessment of the crop coefficient of an irrigated Tempranillo vineyard measured in a weighing lysimeter during 5 years in south-western Spain. During the first year of the study (2006), young vines displayed a different canopy growth compared to the subsequent years. From 2007 to 2010, vines experienced 2 years with no restriction in water supply, and two other years with short periods of crop water stress. Basal crop coefficient (K cb) started from 0. 2 at bud-break until 1. 0 at full development in every year, being this maximum management-dependent. K cb showed a good correlation with canopy size indices, which allows to interpolate these results to a wide range of commercial vine systems that are usually managed with lower vegetation size. Moreover, a simple linear model of crop evapotranspiration reduction with relative water content is presented, allowing the estimation of consumptive water use under deficit irrigation conditions. © 2012 Springer-Verlag.This work was funded by the Spanish Ministry of Science and Innovation through the projects INIA (RTA 2005-0038-C06-05) and (RTA-2008-00037-C04-03), by the project CONSOLIDER CSD2006-0067 and by the European Regional Development Fund (ERDF).Peer Reviewe