AUTONOMOUS MANAGEMENT OF FERTIRRIGATION OF GRAPE TOMATO CULTIVATED ON A SUBSTRATE USING IRRIGÁS® SENSORS

Authors

  • Anderson Fernando Wamser Epagri
  • Janice Valmorbida
  • Luiz Carlos Argenta
  • Anderson Luiz Feltrim
  • Juracy Caldeira Lins Júnior
  • Fernando Pereira Monteiro

DOI:

https://doi.org/10.15809/irriga.2022v27n3p452-464

Abstract

The association of Irrigás® sensors with autonomous irrigation controllers enables the development of new researches to correlate with greater precision the level of substrate moisture and the productivity and quality of tomatoes gourmet. The aim of this study was to analyze the production and quality of grape tomatoes as a function of autonomous fertigation management based on Irrigás® sensors at different water tensions of the cultivation substrate. A randomized complete block experiment was conducted, with six replications, and five minimum levels of substrate moisture for the beginning of fertigation: 3.0; 4.3; 5.6; 6.9; and 8.2 kPa. Fruit yield and fruit mass, soluble solids content, titratable acidity and firmness of the fruit pulp were evaluated. The highest commercial fruit production (3.4 kg/plant) was obtained with the estimated limit tension of 6.0 kPa. The increase in the limit tension for the beginning of irrigation promoted a decrease in the firmness of commercial fruits (4.0 to 3.4 lb) and in the weight of medium-small class fruits (6.7 to 5.8 g/fruit) and increase in the soluble solids content (8.9 to 9.8oBrix) and titratable acidity (1.0 to 1.2%) of the tomato.

Downloads

Published

2022-09-30

How to Cite

WAMSER, Anderson Fernando; VALMORBIDA, Janice; ARGENTA, Luiz Carlos; FELTRIM, Anderson Luiz; CALDEIRA LINS JÚNIOR, Juracy; PEREIRA MONTEIRO, Fernando. AUTONOMOUS MANAGEMENT OF FERTIRRIGATION OF GRAPE TOMATO CULTIVATED ON A SUBSTRATE USING IRRIGÁS® SENSORS. IRRIGA, [S. l.], v. 27, n. 3, p. 452–464, 2022. DOI: 10.15809/irriga.2022v27n3p452-464. Disponível em: https://revistas.fca.unesp.br/index.php/irriga/article/view/4300. Acesso em: 17 jan. 2025.

Issue

Vol. 27 No. 3 (2022): Irriga

Section

Artigos

License

Copyright (c) 2022 IRRIGA

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

This magazine provides public access to all its content, following the principle that free access to research generates greater global knowledge exchange. Such access is associated with a growing reading and citation of an author's work. The copyright of articles published in Revista Irriga is the property of the authors, with first publication rights for the journal. Because they appear in this publicly accessible magazine, articles are free to use, for their own purposes, for educational and non-commercial purposes. Further details can be obtained at http://creativecommons.org/licenses/by-nc-nd/4.0