Effects of fertilization on thrips and downy mildew incidence and on the yield of onion

Authors

  • Paulo Antônio de Souza Gonçalves Epagri/Estação Experimental de Ituporanga
  • João Américo Wordell Filho Epagri/Estação Experimental de Ituporanga
  • Claudinei Kurtz Epagri/Estação Experimental de Ituporanga

Keywords:

Thrips tabaci, Peronospora destructor, All, nitrogen, phosphorus, potassium

Abstract

The objective of this research was to evaluate the effect of fertilization with nitrogen, phosphorus and
potassium on thrips (Thrips tabaci) and downy mildew (Peronospora destructor), and on the yield of onion crop. The treatments were controls, half, one, two and four times the recommended amount of N, P2O5 e K2O. In the experiment with nitrogen the turkey manure was included to supply the recommended amount of nutrients. The onion thrips and downy mildew incidence were not influenced by the nutrients; only phosphorus had a positive linear tendency with the development of the insect. The yield increased mainly as a result of the use of phosphorus.

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Published

2021-01-26

How to Cite

Gonçalves, P. A. de S., Wordell Filho, J. A., & Kurtz, C. . (2021). Effects of fertilization on thrips and downy mildew incidence and on the yield of onion. Agropecuária Catarinense Journal, 22(1), 57–60. Retrieved from https://publicacoes.epagri.sc.gov.br/rac/article/view/808

Issue

Vol. 22 No. 1 (2009)

Section

Scientific article

License

Copyright (c) 2009 Agropecuária Catarinense Journal

Creative Commons License

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

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