Soil solarization for Pithium and weed control in chrysanthemum crop

Authors

  • W. Bettiol EMBRAPA; CNPMA
  • R. Ghini EMBRAPA; CNPMA
  • J.A.H. Galvão EMBRAPA; CNPMA
  • S.S. Zocchi USP; ESALQ; Departamento de Matemática e Estatística

DOI:

https://doi.org/10.1590/S0103-90161994000300013

Keywords:

solar energy, dampping-off, Chrysanthemum, plastic, biological control

Abstract

Two months solarization of a soil naturally infested with Pythium sp. promoted a level of control similar to what was obtained with the application of methalaxyl + mancozeb for the chrysanthemum crop. The average rate of dead plants was 9.0% with the application of fungicides (1 g of methalaxyl + 4.8 g of mancozeb/ m²); 2.3% in solarized plots; 1.0% in solarized plots which received half the dosages of the fungicides and 38.9% in control plots. Similar control of weeds was obtained in solarized plots and plots treated with the herbicide oxidiazon.

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Published

1994-12-01

Issue

Vol. 51 No. 3 (1994)

Section

Agronomy

License

All content of the journal, except where identified, is licensed under a Creative Common attribution-type BY-NC.

How to Cite

Soil solarization for Pithium and weed control in chrysanthemum crop . (1994). Scientia Agricola, 51(3), 459-462. https://doi.org/10.1590/S0103-90161994000300013