Plant Soil Environ., 2003, 49(9):414-421 | DOI: 10.17221/4146-PSE

Effects of tillage and reduced herbicide doses on weed biomass production in winter and spring cereals

M. Knežević, M. Đurkić, I. Knežević, O. Antonić, S. Jelaska
1 Faculty of Agriculture, J.J. Strossmayer University in Osijek, Croatia
2 Ruđer Bošković Institute, Zagreb, Croatia
3 Oikon d.o.o., Zagreb, Croatia

The effects of different tillage systems and dose reduction on the efficacy of triasulfuron & chlortoluron mixture in the post-emergence control of annual broad-leaved weeds in winter wheat and spring barley were studied on lessive pseudogley soil in north-eastern Croatiaduring 1997-2000. Total dry biomass production in untreated plots was significantly influenced by tillage and it was lowest in continuous mouldboard ploughing (99 kg/ha), medium and similar in mouldboard ploughing/disk harrowing alternating every second year and in chisel ploughing (218 kg/ha) whereas the biomass was highest in continuous disk harrowing (422 kg/ha). Thereby the proportion of annual broad-leaved weed biomass was 70, 63, and 28%, respectively. Chenopodium album L., Ambrosia artemisiifolia L., Ch. polyspermum L. and Polygonum aviculare L. are the most abundant annual weed species in all tillage treatments. One half and one quarter of the recommended rate decreased the control efficacy of total weed biomass by 12 and 19%, respectively in wheat and by 6 and 15%, respectively in barley compared to the highest dose but they still provided a very good biomass control of main annual weeds (94-96 percentage units). The efficacy of reduced herbicide doses in the control of annual broad-leaved weeds did not vary significantly between tillage treatments and growing seasons. Significant interaction with continuous disk harrowing tillage and one-quarter herbicide dose was detected in the last year of wheat trial when perennial weeds increased their biomass proportion 8 times compared to four years before.

Keywords: winter wheat; spring barley; soil tillage; herbicide doses; weed dry biomass; weed control efficacy

Published: September 30, 2003  Show citation

ACS AIP APA ASA Harvard Chicago Chicago Notes IEEE ISO690 MLA NLM Turabian Vancouver
Knežević M, Đurkić M, Knežević I, Antonić O, Jelaska S. Effects of tillage and reduced herbicide doses on weed biomass production in winter and spring cereals. Plant Soil Environ. 2003;49(9):414-421. doi: 10.17221/4146-PSE.
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open full article

    References

    1. Arshad M.A., Gill K.S., Coy G.R. (1994): Wheat yield and weed population as influenced by three tillage systems on a clay soil in temperature continental climate. Soil Till. Res., 28: 227-238. Go to original source...
    2. Brown N.J., North P.F. (1984): Tillage under controlled conditions its effect on emergence and yield of spring barley. J. Agric. Sci., 102: 181-189. Go to original source...
    3. Butorac A., Žugec I., Bašić F. (1986): Stanje i perspektive reducirane obrade tla u svijetu i u nas. Poljopriv. Akt., 25: 159-262.
    4. Christensen S. (1994): Crop weed competition and herbicide performance in cereal species and varieties. Weed Res., 34: 29-36. Go to original source...
    5. Courtney A.D. (1991): The role of competition in developing an appropriate rate strategy for weed control in spring barley. Proc. Brighton Crop Protec. Conf. Weeds: 1217-1224.
    6. Derksen D.A., Lafond G.P., Gordon A.T., Loeppky H.A., Swanton C.J. (1993): Impact of agronomic practices on weed communities: Tillage systems. Weed Sci., 41: 409-417. Go to original source...
    7. Fischer N.M., Davies D.H.K., Whytock G.P. (1993): Reliability of broad-leaved weed control in cereal using low doses of herbicide. Proc. Brighton Crop Protec. Conf. Weeds: 1223-1228.
    8. Froud-Williams R.J., Chancellor R.J., Drennan D.S.H. (1981): Potential changes in weed floras associated with reduced-cultivation systems for cereal production in temperature regions. Weed Res., 21: 99-109. Go to original source...
    9. Kudsk P. (1989): Experiences with reduced herbicide doses in Denmark and development of the concept of factor adjusted doses. Proc. Brighton Crop Protec. Conf. Weeds: 545-554.
    10. Légère A., Samson N., Lemieux C., Rioux R. (1990): Effects of weed management and reduced tillage on weed populations and barley yields. Proc. 7th EWRS Symp. Integrated weed management in cereals: 111-118.
    11. Maceljski M., Hrlec G., Ostojić Z., Cvjetković B. (2002): Pregled sredstava za zaštitu bilja u Hrvatskoj. Glas. Bilj. Zašt., 2-3: 61-177.
    12. Ott R.L. (1993): An introduction to statistical methods and data analysis. Duxbury Press, Belmont.
    13. Pallutt B. (1999): Possibilities and limits of using seed rate and nitrogen fertilisation to decrease weed infestation and herbicide input in cereals. Proc. 11th EWRS Symp.: 114.
    14. Pallutt B., Bennewitz A. (1996): Einfluss von pflugloser Bodenbearbeitung auf die Verunkrautung und den Ertrag von Wintergetreide. Z. Pfl.-Krankh. Pfl.-Schutz, Sonderh. XV: 325-332.
    15. Pollard F., Moss S.R., Cussans G.W., Froud-Williams R.J. (1982): The influence of tillage on the weed flora in a succession of winter wheat crops on a clay loam soil and a silt loam soil. Weed Res., 22: 129-136. Go to original source...
    16. Rasmussen I.A. (1993): Seed production of Chenopodium album in spring barley sprayed with different herbicides in normal and very low doses. Proc. 8th EWRS Symp. Quantitative approaches in weed and herbicide research and their practical application: 639-646.
    17. Salonen J. (1992): Efficacy of reduced herbicide doses in spring cereals of different competitive ability. Weed Res., 32: 483-491. Go to original source...

    This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY NC 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.


    Return to the content