Economics of Management Zone Delineation in Cotton Precision Agriculture

This paper develops a management zone delineation procedure based on a spatial statistics approach and evaluates its economic impact for the case of Texas cotton production. With the use of an optimization model that utilizes a yield response function estimated through spatial econometric methods, we found that applying variable N rates based on the management zones delineated would result in higher cotton yields and higher net returns, above Nitrogen cost, relative to uniformly applying a single N rate for the whole field. In addition, a variable rate N application using the delineated management zones produced higher net returns, above Nitrogen cost, relative to a variable N rate system where the zones are based solely on landscape position. This is indicative of the potential economic value of using a spatial statistics approach to management zone delineation.Management Zones, Exploratory Spatial Data Analysis, Site-Specific Nitrogen Management, Cotton Precision Agriculture., Crop Production/Industries, Q1, Q16,

Economics of Management Zone Delineation in Cotton Precision Agriculture

This paper develops a management zone delineation procedure based on a spatial clustering approach and evaluates its economic impact for the case of Texas cotton production. The results show that there is potential economic value in using a spatial approach to management zone delineation, but its value critically depends on the cost of collecting soil test information needed to delineate those zones.Management Zones, Exploratory Spatial Data Analysis, Site-Specific Nitrogen Management, Cotton Precision Agriculture, Crop Production/Industries, Q12,

Educar con la historia de la educación: un análisis desde el enfoque del aprendizaje cooperativo

Peer Reviewe

L’art primitiu: una altra forma d’entendre l’art

Sisenes Jornades de Foment de la Investigació de la FCHS (Any 2000-2001

Un laboratorio de prácticas territoriales turísticas. La costa de Sueca

The orography/ the configuration of a massive residential tourism has entailed a dramatic change of the genuine coastal scenery in the coast of Valencia. The essay explains the factors, which have determined this change in the municipality of Sueca. a territory with a high level of interest in the geography of tourism due to the presence of “El Parque Natural de La Albubera” / “Nature reserve of La Albubera”, the introduction of different typologies of tourism and the different dynamics of territorial generated together with the interaction of tourism, the buildings of the area and the grown of rice.La configuración de un turismo residencial masivo en el litoral valenciano ha comportado una espectacular transformación del paisaje costero genuino. El trabajo aborda los factores que han condicionado dicha alteración en el municipio de Sueca, un territorio de alto interés para la geografía del turismo debido a la presencia del Parque Natural de La Albufera, a las distintas tipologías de implantación turística y a las diversas dinámicas territoriales que se generan con la interrelación turismo, construcción inmobiliaria y cultivo del arroz