EFFECT OF DIFFERENT IRRIGATION DEPTH ADJUSTMENT METHODS ON MAIZE YIELD COMPONENTS, GRAIN YIELD AND WATER USE EFFICIENCY

Autores

  • Leonardo Chechi Universidade Federal da Fronteira Sul
  • Luan Junior Kuhn Universidade Federal da Fronteira Sul
  • Vanderléia Fortuna Universidade Federal da Fronteira Sul
  • Patricia Mara de Almeida Universidade Federal da Fronteira
  • Maurício Albertoni Scariot Universidade Federal do Rio Grande do Sul
  • Nerandi Luiz Camerini Universidade Federal da Fronteira Sul
  • Hugo von Linsingen Piazzetta Universidade Federal da Fronteira Sul

DOI:

https://doi.org/10.15809/irriga.2018v23n3p454-466

Resumo

As the water stress is one of the main causes for the low maize yield in Brazil, this study aimed to evaluate the yield components, grain yield and the water use efficiency of maize crop submitted to different methods of irrigation depth adjustment and validate the “Lâmina” spreadsheet to recommend irrigation depth in this crop. The treatments applied were: non-use of irrigation (control); irrigation depth adjustment provided by” Lâmina” spreadsheet (Lâmina); soil moisture equivalent to actual capacity of water in the soil at 55% of the total soil water capacity (55% RWC); and soil moisture equivalent to 100% of the field capacity (100% FC). The experimental design was a randomized block design with four replications, each experimental unit consists of a plot 3 meters wide and 3 meters long. The variables analyzed were total water applied, dry matter, ears per plant, kernel rows per ear, kernels per row, kernels per ear, one thousand kernels weight, grain yield and water use efficiency. Grain yields were similar between irrigated treatments, showing significant differences compared to the control. The Lâmina and 55% RWC showed the best results for water use efficiency and yield components. The Lâmina treatment used the least amount of water, with high yields, contributing to the rational water use in irrigated agricultural systems.

Biografia do Autor

Leonardo Chechi, Universidade Federal da Fronteira Sul

Engenheiro Agrônomo

Luan Junior Kuhn, Universidade Federal da Fronteira Sul

Engenheiro Agrônomo

Vanderléia Fortuna, Universidade Federal da Fronteira Sul

Estudante de Agronomia

Patricia Mara de Almeida, Universidade Federal da Fronteira

Estudante de Agronomia

Maurício Albertoni Scariot, Universidade Federal do Rio Grande do Sul

Estudante de Doutorado no programa de Pós-Graduação em Fitotecnia

Nerandi Luiz Camerini, Universidade Federal da Fronteira Sul

Professor Adjunto do Curso de Agronomia, Campus Rrechim - RS

Hugo von Linsingen Piazzetta, Universidade Federal da Fronteira Sul

Professor Adjunto do Curso de Agronomia, Campus Rrechim - RS

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Publicado

2018-10-29

Como Citar

CHECHI, L.; KUHN, L. J.; FORTUNA, V.; DE ALMEIDA, P. M.; SCARIOT, M. A.; CAMERINI, N. L.; PIAZZETTA, H. von L. EFFECT OF DIFFERENT IRRIGATION DEPTH ADJUSTMENT METHODS ON MAIZE YIELD COMPONENTS, GRAIN YIELD AND WATER USE EFFICIENCY. IRRIGA, [S. l.], v. 23, n. 3, p. 454–466, 2018. DOI: 10.15809/irriga.2018v23n3p454-466. Disponível em: https://energia.fca.unesp.br/index.php/irriga/article/view/2618. Acesso em: 28 mar. 2024.

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