The impact of management on weeds and aquatic plant communities in Hungarian rice crops

G. Pinke, J. Csiky, A. Mesterházy, L. Tari, Rw Pál, Z. Botta-Dukát, B. Czúcz

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Summary: This study assessed the cultural and weed management factors influencing the weed communities of Hungarian rice fields. Hungary is situated at the northern limit of rice production with a history of about 300 years of rice culture. We surveyed the weed flora and 25 background variables in 100 active rice fields. Using a minimal adequate model containing 11 terms, 48.5% of the total variation in weed species data could be explained. The net effects of nine variables on species composition were significant. Crop cover was found to be the most important explanatory variable, which was followed by the herbicides penoxsulam and azimsulfuron, tillage depth, phosphorous and potassium fertilisers, years after last rotation, water depth in May, sowing type, pendimethalin and water conductivity. Filamentous algae, as the most abundant group of weeds, were positively associated with deep tillage, deep water and surface sowing. Echinochloa crus-galli, one of the most troublesome grass weeds, was associated with low rice cover, shallow water and later years after crop rotation, while weedy rice favoured high crop cover, deep water and soil sowing. These findings can be used to design improved weed management strategies. The occurrence of red list species and charophytes in diverse micro-mosaic patterns deserves attention from a conservation perspective, as well. The maintenance of these unique charophyte communities can be facilitated by shallow tillage without soil inversion.

Original languageEnglish
Pages (from-to)388-397
Number of pages10
JournalWeed Research
Volume54
Issue number4
DOIs
Publication statusPublished - 2014

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aquatic plant
aquatic plants
weed
plant community
plant communities
rice
weeds
crop
crops
sowing
cover crops
tillage
algae
water
paddies
azimsulfuron
weed control
cover crop
paddy field
Charophyta

Keywords

  • Agroecology
  • Charophytes
  • Echinochloa
  • Filamentous algae
  • Lemna
  • Macrophytes
  • Oryza sativa
  • Paddy fields
  • Tillage
  • Water management
  • Weed vegetation
  • Weedy rice

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science
  • Ecology, Evolution, Behavior and Systematics

Cite this

The impact of management on weeds and aquatic plant communities in Hungarian rice crops. / Pinke, G.; Csiky, J.; Mesterházy, A.; Tari, L.; Pál, Rw; Botta-Dukát, Z.; Czúcz, B.

In: Weed Research, Vol. 54, No. 4, 2014, p. 388-397.

Research output: Contribution to journalArticle

Pinke, G, Csiky, J, Mesterházy, A, Tari, L, Pál, R, Botta-Dukát, Z & Czúcz, B 2014, 'The impact of management on weeds and aquatic plant communities in Hungarian rice crops', Weed Research, vol. 54, no. 4, pp. 388-397. https://doi.org/10.1111/wre.12084
Pinke, G. ; Csiky, J. ; Mesterházy, A. ; Tari, L. ; Pál, Rw ; Botta-Dukát, Z. ; Czúcz, B. / The impact of management on weeds and aquatic plant communities in Hungarian rice crops. In: Weed Research. 2014 ; Vol. 54, No. 4. pp. 388-397.
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