Data/hora: 03/06/2024 04:41:26

Provedor de dados: | 111
País: | China
Título: | Root growth of sugarcane irrigated with wastewater through subsurface drip system
Autores: | Santos, Leonardo Nazário Silva dos; Barbosa, Eduardo Augusto Agnellos; Nazário, Aline Azevedo; Gonçalves, Ivo Zution; Ohashi, Augusto Yukitaka Pessinatti; Matsura, Edson Eiji; Pires, Regina Célia de Matos.
Data: | 2017-06-12
Ano: | 2017
Palavras-chave: | Root scanner; Minirhizotron; Drip irrigation; Time domain reflectometry (TDR); Saccharum officinarum L.
Resumo: | The use of wastewater in agriculture is an alternative to provide water and nutrients for plants.  However, root system development can be affected by water quality and depth of wastewater applied.  The objective of this study was to evaluate the sugarcane root system growth using a minirhizotron in a field irrigated with treated sewage effluent and freshwater by subsurface drip irrigation.  The treatments tested were two drip line installation depths (0.2 and 0.4 m); two water sources (treated sewage effluent and freshwater) and non-irrigated plots as control.  The experiment was a randomized block design with a 2×2 + 1 factorial, with three replications.  The root system evaluation (root length and spatial distribution) was performed using a minirhizotron with an access tube buried in the soil profile and installed on a 45 degree angle.  The soil moisture was determined using the time-domain reflectometry technique.  The lowest moisture on the soil surface resulted in the highest root length density (0.18 cm cm-2) at the non-irrigated plots (p&gt;0.05).  The application of treated sewage effluent and the installation depth of drip line did not change the root length of sugarcane in first ratoon (p&gt;0.05).  Eighty percent of the root system was accumulated from the soil surface to 0.45 m.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.cigrjournal.org/index.php/Ejounral/article/view/3881
Editor: | International Commission of Agricultural and Biosystems Engineering

Relação:

http://www.cigrjournal.org/index.php/Ejounral/article/view/3881/2510

http://www.cigrjournal.org/index.php/Ejounral/article/downloadSuppFile/3881/1482

Formato: | application/pdf

Fonte:

Agricultural Engineering International: CIGR Journal; Vol 19, No 1 (2017): CIGR Journal; 16-25

1682-1130

Fonte: | Copyright (c) 2017 Agricultural Engineering International: CIGR Journal