Download or read book Evapotranspiracion Del Cultivo written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2006-08-30 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: En esta publicacion se presenta una actualizacion del procedimiento para calcular la evapotranspiracion de referencia y la evapotranspiracion del cultivo a partir de datos meteorologicos y coeficientes de cultivo. El procedimiento, que fue presentado por primera vez en la publicacion No 24 de la Serie de Riego y Drenaje de la FAO "Las Necesidades de Agua de los Cultivos" en 1977, permite estimar la cantidad de agua que un cultivo utiliza teniendo en cuenta el efecto del clima y las caracteristicas del cultivo. La presente publicacion incorpora avances en investigacion y un procedimiento mas preciso para determinar el uso de agua de los cultivos de acuerdo a las recomendaciones de un panel de expertos de alto nivel organizado por la FAO en Mayo de 1990. La primera parte de estas guias incluye procedimientos para determinar la evapotranspiracion del cultivo de referencia de acuerdo con el metodo Penman-Monteith. A continuacion se presentan procedimientos actualizados para estimar la evapotranspiracion de diversos cultivos en diferentes etapas de desarrollo y condiciones ecologicas."
Download or read book Las necesidades de agua de los cultivos written by J. Doorenbos and published by . This book was released on 1976 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculo de la evapotranspiracion del cultivo de referencia: et (cultivo). Eleccion del coeficiente de cultivo, kc. Calculo de las necessidades de riego: if. Calculo del suministro de riego: Vs.
Download or read book Evaluaci n del m todo surface renewal para la determinaci n de evapotranspiraci n de cultivo written by Matías José Mendoza Lama and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evapotranspiraci n y necesidades de riego de los principales cultivos en las comarcas de Arag n written by Antonio Martínez Cob and published by . This book was released on 1998-01-01 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evapotranspiraci n en Chill n written by Domingo F. Queirolo Díaz and published by . This book was released on 1975 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Se realizó en la estación Experimental de la Escuela de Agronomía de la Universidad de Concepción, Chillán, una investigación con el objetivo de diagnosticar las necesidades de agua de los cultivos de la región. El trabajo consistió en recopilar, analizar y comparar información (i) meteorológica para calcular la evapotranspiración y la evaporación potencial mediante las ecuaciones de Grassi-Christiansen, Tosso, Blaney-Criddle y Penman, (ii) de evapotranspiración experimental y (iii) de evaporación de bandeja USWB tipo A. Las principales conclusiones fueron: 1. El cálculo de las ecuaciones es innecesario si se dispone de varios años de información de evaporación de bandeja. 2. La información de evapotranspiración experimental disponible es demasiado variable de año en año y no asegura un pronóstico confiable para predicciones de riego. 3. La evapotranspiración real de los cultivos es un proceso que debe estimarse para cada período de la estación de crecimiento. Este valor, se puede obtener desde la evaporación de bandeja modificado por un factor de cultivo. Para aplicar estos valores en la práctica, se recomienda realizar un análisis de frecuencia de distribución de evapotranspiración y pluviometría. La diferencia entre ambas a un mismo nivel de probabilidad dará el valor más confiable de déficit de agua del cultivo.
Download or read book Evapotranspiration written by Leszek Labedzki and published by BoD – Books on Demand. This book was released on 2011-03-16 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evapotranspiration is a very complex phenomenon, comprising different aspects and processes (hydrological, meteorological, physiological, soil, plant and others). Farmers, agriculture advisers, extension services, hydrologists, agrometeorologists, water management specialists and many others are facing the problem of evapotranspiration. This book is dedicated to further understanding of the evapotranspiration problems, presenting a broad body of experience, by reporting different views of the authors and the results of their studies. It covers aspects from understandings and concepts of evapotranspiration, through methodology of calculating and measuring, to applications in different fields, in which evapotranspiration is an important factor. The book will be of benefit to scientists, engineers and managers involved in problems related to meteorology, climatology, hydrology, geography, agronomy and agricultural water management. We hope they will find useful material in this collection of papers.
Download or read book Evapotranspiraci n de referencia y coeficientes de cultivo para los valles de Cochabamba consideraciones sobre el balance h drico written by Zulema Gutiérrez Pérez and published by . This book was released on 2002 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distribuci n espacial de la evapotranspiraci n del cultivo de referencia written by Villar Mir, Pere and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report RM written by and published by . This book was released on 1987 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Medida y c lculo de la evapotranspiraci n de los cultivos written by José María Faci González and published by . This book was released on 1996 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determinaci n de la evapotranspiraci n de cultivo de siete coberturas del humedal Laguna de la Herrera y aproximaci n a la modelaci n hidrol gica written by Mariana Carreño Bernal and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "El presente proyecto de investigación determina el coeficiente de cultivo (Kc) de las coberturas Bidens laevis, Hydrocotyle ranunculoides, Persicaria punctata, Eichhornia crassipes, Pennisetum clandestinum, Lemna sp y espejo de agua libre del Humedal Laguna de la Herrera ubicado en Mosquera Cundinamarca. La evapotranspiración de cultivo (ETc) se cuantifica mediante lisímetros in situ. Las mediciones se realizan por un período de 132 días consecutivos. El cálculo consiste en un balance hídrico del lisímetro, en el que la única incógnita corresponde a la ETc. Se realizan mediciones de variables climatológicas, con el fin de calcular la evapotranspiración de referencia (ET0) por el método de la FAO-Penman-Monteith. Los resultados obtenidos corresponden a Kc de: 1.290, 1.577, 1.475, 1.578, 1.57, 1.39 y 1.44 para cada cobertura respectivamente." -- Tomado del Formato de Documento de Grado.
Download or read book Evapotranspiraci n de referencia y coeficientes de cultivo para el Chaco Tarije o written by and published by . This book was released on 2002* with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estudio cr tico comparativo de tres m todos simples de c lculo de la evapotranspiraci n real written by Francisco Ribas Elcorobarrutia and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book La evapotranspiraci n de los cultivos aspectos agrof sicos written by Aldo Norero and published by . This book was released on 1976 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estrategias de Clasificaci n Y Manejo de Vegetaci n Silvestre Para la Producci n de Alimentos en Zonas ridas written by and published by . This book was released on 1988 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elsevier s Dictionary of Soil Science written by A. Canarache and published by Elsevier. This book was released on 2006-10-17 with total page 1355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dictionary includes some 9200 terms, each with a definition and often and additional descriptive text in English, the terms being translated in French, German and Spanish. It is more complete than similar previously published dictionaries or glossaries, and contains all fields of soil science as well as some adjacent fields of other earth sciences, agriculture and engineering. Present concepts and definitions are detailed along with earlier concepts, not only for historical reasons but also for developing new ideas. Concepts, terms and definitions usual in literature of various countries are discussed and compared, to offer an appropriate exchange of ideas. Soil classifications and methodologies for soil investigation coming from a score of European, American and other countries and international organisations are presented, and correlations between names of soil taxa in different classifications are suggested. Readers active in all branches of soil science will find accessible answers to many of their questions, either directly referring to procedures used in the organisations where they work, or related to way of thinking in other countries. Readers active in other branches, but needing information on soils, will also find answers to this dictionary of great assistance to their research. * Over 9200 terms with definitions in English and translations in French, German, Spanish* Includes all fields of soil science and many connected sciences* All present-day terminology with inclusion of earlier, classical concepts and terms * Terminology in current USDA Soil Taxonomy, FAO World Reference Base or Soil Resources, and other documents from different countriesGranted the "N.Cernescu" award from the Romanian Academy on Agricultural and Forestry Sciences
