EVALUATION AND EXPERIMENTAL DEVELOPMENT OF A DRIP TAPE IRRIGATION SYSTEM FOR TAIWAN GRASS Pennisetum purpureum Schum

EVALUATION AND EXPERIMENTAL DEVELOPMENT OF A DRIP TAPE IRRIGATION SYSTEM FOR TAIWAN GRASS Pennisetum purpureum Schum

A drip tape irrigation system for Taiwan grass (Pennisetum purpureum Schum) was evaluated, in order to know the efficiency of its operation; besides, the response of this grass to four nitrogen fertilizer levels (100, 350, 600 and 850 kg ha-1 year-1) and four soil moisture tensions (0.30, 1.32, 2.33 and 3.34 bar) in the irrigation water, were tested, in order to recommend practices which improve the system operation. This study was conducted at El Principio ranch, Medellín, Veracruz State, from October 1995 to March 1996. Seven treatments were defined by the San Cristóbal matrix with two factors in a randomized block design with four replications. Response variables were root density and biomass produced by Taiwan grass. The irrigation system showed low efficiency operation because a uniformity coefficient of 50 % was obtained in the most critical case; this coefficient improved by 33.5 % when changes were made after checking the original design of the hydraulic system. Root density varied with an inverse relationship to the nitrogen fertilizer dose, without a significant effect of soil moisture tension. The results for biomass defined optimal economic levels of 587 kg ha-1 year-1 of nitrogen fertilizer, and 0.64 bar for soil moisture tension. These levels may be recommended since they may improve the economic productivity of Taiwan grass.

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Main Authors: Ascencio-Hernández, Roberto, Riestra-Díaz, David, Tijerina-Chávez, Leonardo, Canudas-Lara, Eduardo, Acosta-Hernández, Rafael
Format: Digital revista
Language:spa
Published: Colegio de Postgraduados 1999
Online Access:https://www.agrociencia-colpos.org/index.php/agrociencia/article/view/1590
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spelling oai:ojs.pkp.sfu.ca:article15902020-05-14T14:25:30Z EVALUATION AND EXPERIMENTAL DEVELOPMENT OF A DRIP TAPE IRRIGATION SYSTEM FOR TAIWAN GRASS Pennisetum purpureum Schum EVALUACION Y DESARROLLO EXPERIMENTAL DE UN SISTEMA DE RIEGO CON CINTILLAS DE GOTEO EN PASTO TAIWAN (Pennisetum purpureum Schum) Ascencio-Hernández, Roberto Riestra-Díaz, David Tijerina-Chávez, Leonardo Canudas-Lara, Eduardo Acosta-Hernández, Rafael Pennisetum purpureum drip irrigation fertigation nitrogen fertilizer Pennisetum purpureum riego por goteo fertigación fertilización nitrogenada A drip tape irrigation system for Taiwan grass (Pennisetum purpureum Schum) was evaluated, in order to know the efficiency of its operation; besides, the response of this grass to four nitrogen fertilizer levels (100, 350, 600 and 850 kg ha-1 year-1) and four soil moisture tensions (0.30, 1.32, 2.33 and 3.34 bar) in the irrigation water, were tested, in order to recommend practices which improve the system operation. This study was conducted at El Principio ranch, Medellín, Veracruz State, from October 1995 to March 1996. Seven treatments were defined by the San Cristóbal matrix with two factors in a randomized block design with four replications. Response variables were root density and biomass produced by Taiwan grass. The irrigation system showed low efficiency operation because a uniformity coefficient of 50 % was obtained in the most critical case; this coefficient improved by 33.5 % when changes were made after checking the original design of the hydraulic system. Root density varied with an inverse relationship to the nitrogen fertilizer dose, without a significant effect of soil moisture tension. The results for biomass defined optimal economic levels of 587 kg ha-1 year-1 of nitrogen fertilizer, and 0.64 bar for soil moisture tension. These levels may be recommended since they may improve the economic productivity of Taiwan grass. Se evaluó un sistema de riego con cintillas de goteo instalado en pasto Taiwan (Pennisetum purpureum Schum) para conocer su eficiencia de operación y se estudió la respuesta de este pasto a cuatro dosis de fertigación nitrogenada (100, 350, 600 y 850 kg ha-1 año-1) y cuatro tensiones de humedad del suelo (0.30, 1.32, 2.33 y 3.34 bar), para derivar recomendaciones prácticas que mejoren el funcionamiento del sistema. El trabajo se hizo en el rancho El Principio, municipio de Medellín, Veracruz, de octubre de 1995 a marzo de 1996. Se definieron siete tratamientos mediante la matriz San Cristóbal, con dos factores en un diseño de bloques al azar con cuatro repeticiones. Se midió la densidad de raíces y la biomasa aérea producida por el pasto Taiwan. Se encontró que el sistema de riego opera con baja eficiencia, pues en el caso más crítico se obtuvo un coeficiente de uniformidad de 50 %, el cual se incrementó en 33.5 % con los cambios hechos como resultado de la verificación al diseño hidráulico original. La densidad de raíces varió inversamente con las dosis de fertigación nitrogenada, sin efecto significativo de la tensión de humedad del suelo. Los resultados para biomasa indicaron que los niveles óptimos económicos correspondieron a 587 kg ha-1 año-1 para fertigación nitrogenada y 0.64 bar para tensión de humedad del suelo, por lo que se recomienda la aplicación de estos niveles que pueden mejorar la productividad económica del pasto Taiwan. Colegio de Postgraduados 1999-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://www.agrociencia-colpos.org/index.php/agrociencia/article/view/1590 Agrociencia; Vol. 33 No. 2 (1999): 1999-abr-jun; 123-131 Agrociencia; Vol. 33 Núm. 2 (1999): 1999-abr-jun; 123-131 2521-9766 1405-3195 spa https://www.agrociencia-colpos.org/index.php/agrociencia/article/view/1590/1590
institution COLPOS
collection OJS
country México
countrycode MX
component Revista
access En linea
databasecode rev-agrociencia-mx
tag revista
region America del Norte
libraryname Departamento de documentación y biblioteca de COLPOS
language spa
format Digital
author Ascencio-Hernández, Roberto
Riestra-Díaz, David
Tijerina-Chávez, Leonardo
Canudas-Lara, Eduardo
Acosta-Hernández, Rafael
spellingShingle Ascencio-Hernández, Roberto
Riestra-Díaz, David
Tijerina-Chávez, Leonardo
Canudas-Lara, Eduardo
Acosta-Hernández, Rafael
EVALUATION AND EXPERIMENTAL DEVELOPMENT OF A DRIP TAPE IRRIGATION SYSTEM FOR TAIWAN GRASS Pennisetum purpureum Schum
author_facet Ascencio-Hernández, Roberto
Riestra-Díaz, David
Tijerina-Chávez, Leonardo
Canudas-Lara, Eduardo
Acosta-Hernández, Rafael
author_sort Ascencio-Hernández, Roberto
title EVALUATION AND EXPERIMENTAL DEVELOPMENT OF A DRIP TAPE IRRIGATION SYSTEM FOR TAIWAN GRASS Pennisetum purpureum Schum
title_short EVALUATION AND EXPERIMENTAL DEVELOPMENT OF A DRIP TAPE IRRIGATION SYSTEM FOR TAIWAN GRASS Pennisetum purpureum Schum
title_full EVALUATION AND EXPERIMENTAL DEVELOPMENT OF A DRIP TAPE IRRIGATION SYSTEM FOR TAIWAN GRASS Pennisetum purpureum Schum
title_fullStr EVALUATION AND EXPERIMENTAL DEVELOPMENT OF A DRIP TAPE IRRIGATION SYSTEM FOR TAIWAN GRASS Pennisetum purpureum Schum
title_full_unstemmed EVALUATION AND EXPERIMENTAL DEVELOPMENT OF A DRIP TAPE IRRIGATION SYSTEM FOR TAIWAN GRASS Pennisetum purpureum Schum
title_sort evaluation and experimental development of a drip tape irrigation system for taiwan grass pennisetum purpureum schum
description A drip tape irrigation system for Taiwan grass (Pennisetum purpureum Schum) was evaluated, in order to know the efficiency of its operation; besides, the response of this grass to four nitrogen fertilizer levels (100, 350, 600 and 850 kg ha-1 year-1) and four soil moisture tensions (0.30, 1.32, 2.33 and 3.34 bar) in the irrigation water, were tested, in order to recommend practices which improve the system operation. This study was conducted at El Principio ranch, Medellín, Veracruz State, from October 1995 to March 1996. Seven treatments were defined by the San Cristóbal matrix with two factors in a randomized block design with four replications. Response variables were root density and biomass produced by Taiwan grass. The irrigation system showed low efficiency operation because a uniformity coefficient of 50 % was obtained in the most critical case; this coefficient improved by 33.5 % when changes were made after checking the original design of the hydraulic system. Root density varied with an inverse relationship to the nitrogen fertilizer dose, without a significant effect of soil moisture tension. The results for biomass defined optimal economic levels of 587 kg ha-1 year-1 of nitrogen fertilizer, and 0.64 bar for soil moisture tension. These levels may be recommended since they may improve the economic productivity of Taiwan grass.
publisher Colegio de Postgraduados
publishDate 1999
url https://www.agrociencia-colpos.org/index.php/agrociencia/article/view/1590
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