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Umbrohtude biomassi, arvukuse ja mitmekesisuse muutused pikaajalise külvikorra katse teises rotatsioonis

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dc.contributor.authorMadsen, Helena
dc.contributor.authorLuik, Anne
dc.contributor.authorEremeev, Viacheslav
dc.contributor.authorMäeorg, Erkki
dc.contributor.authorTalgre, Liina
dc.contributor.departmentEesti Maaülikool. Põllumajandus- ja keskkonnainstituutest
dc.date.accessioned2023-08-28T09:51:15Z
dc.date.available2023-08-28T09:51:15Z
dc.date.issued2023
dc.descriptionSaabunud / Received 27.01.2023 ; Aktsepteeritud / Accepted 24.06.2023 ; Avaldatud veebis / Published online 15.08.2023 ; Vastutav autor / Corresponding author Helena Madsen ; helena.madsen@emu.eeest
dc.description.abstractThe effects of long term (established in 2008) five-field crop rotation (barley (Hordeum vulgare L.) with undersown red clover (Trifoium pratense L.), red clover, winter wheat (Triticum aestivum L.), pea (Pisum sativum L.), potato (Solanum tuberosum L.)) on the biomass, abundance and diversity (Shannon-Wiener index) of weeds in three organic (Org) and two conventional (Conv) systems after the second rotation were investigated. The results include data from the second rotation in 2013 – 2017. The control system (Org 0) followed only the crop rotation. In the organic systems Org I and Org II winter cover crops were used. In Org II system composted cattle manure was also applied. The conventional cropping systems were treated with herbicides and fungicides and system Conv 0 acted as control (no fertilizer use). Mineral fertilizer was used in Conv II. In general, the significant differences were evident between conventional and organic cropping systems. There were also some differences depending on the crop. The weed biomass was the lowest in barley and potato plots, with significantly higher values in organic than in conventional systems. In clover plots the highest biomass of weeds occurred in Conv II whilst the lowest in Org I. In winter wheat plots the biomass of weeds was significantly lower in conventional systems than in any of the organic systems. Pea plots had the highest biomass, abundance and diversity of weeds in all systems within all rotational crops. Slight tendencies showed the decrease of weed abundance and diversity at the end of the rotation in systems with cover crops (Org I and Org II). This could be explained by better growing conditions due to higher microbial activity and organic carbon content in the soil of organic systems.eng
dc.identifier.issn2228-4893
dc.identifier.otherAgraarteadus : Journal of Agricultural Science, 2023, vol. 34, no. 1, pp. 18-30est
dc.identifier.urihttp://hdl.handle.net/10492/8578
dc.identifier.urihttps://doi.org/10.15159/jas.23.05
dc.publisherEstonian Academic Agricultural Societyeng
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0)eng
dc.rightsinfo:eu-repo/semantics/openAccesseng
dc.rights.holderAuthors of accepted articles retain all rights to use, reuse, and distribute the published research as long as the author credits the original publication in this journal. The authors submitting to the journal are expected to follow the general ethical guidelines regarding plagiarism. If in doubt consult the ICMJ guidelines on overlapping publications. Once accepted the journal retain the right to print and distribute the manuscript submitted by the author.eng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/eng
dc.subjectShannon-Wiener diversity indexeng
dc.subjectwinter cover cropseng
dc.subjectorganic farmingeng
dc.subjectweed controleng
dc.subjectcrop rotationeng
dc.subjectarticleseng
dc.titleUmbrohtude biomassi, arvukuse ja mitmekesisuse muutused pikaajalise külvikorra katse teises rotatsioonisest
dc.title.alternativeChanges in weed biomass, density and diversity in long-term crop rotation experiment during second rotationeng
dc.typeinfo:eu-repo/semantics/articleeng

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2023, Vol. 34, No. 1