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Vpliv treh naravnih pripravkov na pojavljanje škodljivih organizmov na krompirju (Solanum tuberosum L.)
Jugovic, Barbara (Author), Trdan, Stanislav (Mentor) More about this mentor... This link opens in a new window

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Abstract
V letu 2020 smo na Biotehniški fakulteti v Ljubljani zasnovali poljski poskus, v katerem smo posadili krompir (Solanum tuberosum L.) sorte 'Natascha'. Gomolje smo pred saditvijo namočili in kasneje nadzemne dele rastlin trikrat poškropili s pripravki Rhizoflo Premium (RP), Bioamino-L (BL) in pripravkom na podlagi bakterije Bacillus amyloliquefaciens (BA). Pripravek RP vsebuje rizobakterije, BL aminokisline in BA antagonistično bakterijo. Navedeni pripravki, naj bi pri rastlinah spodbujali rast, vplivali na njihovo večjo odpornost na stres, boljšo absorpcijo hranil ter na večji pridelek. Namen poskusa je bil preučiti vpliv pripravkov na vznik krompirja, na učinkovitost delovanje zoper koloradskega hrošča (Leptinotarsa decemlineata [Say]), strun (Agriotes spp.), črne listne pegavosti krompirja (Alternaria solani [Ellis & G. Martin] L.R. Jones & Grout), krompirjeve plesni (Phytophthora infestans [Mont.] de Bary) in na maso pridelka. Na 10 ar veliki njivi smo zasnovali bločni poskus v treh ponovitvah posameznega bloka. V vsakem bloku smo imeli štiri obravnavanja, znotraj vsakega pa smo na treh podparcelah nanašali fitofarmacevtska sredstva v treh različnih koncentracijah (v 100, 75 in 50 % priporočenih odmerkih). Ugotovili smo, da so bile med uporabljenimi pripravki pri pridelku krompirja značilne razlike, medtem ko jih med koncentracijami fitofarmacevtskih sredstev ni bilo. Prav tako smo ugotovilo, da pripravki (RH, BL in BA) niso imeli večjega vpliva na pojav škodljivih organizmov. Največji pridelek (26,9 t/ha), najmanjše število koloradskega hrošča in lukenj na gomolj smo ugotovili v obravnavanju s pripravkom BL. Najmanjši vpliv na pridelek krompirja je imel pripravek RP, prav tako smo v obravnavanju s tem pripravkom, ugotovili največje število lukenj na gomolj.

Language:Slovenian
Keywords:krompir, okužbe, poškodbe, črna listna pegavost krompirja, Alternaria solani, strune, Agriotes spp., pridelek, poljski poskus, aminokisline, antagonistične bakterije, Bacillus amyloliquefaciens, rizobakterije, spodbujevalci rasti
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:BF - Biotechnical Faculty
Year:2021
Publisher:[B. Jugovic]
UDC:633.491:632.4/.7:632.937:631.559(043.2)
COBISS.SI-ID:59171075 This link opens in a new window
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Downloads:30
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Secondary language

Language:English
Title:Impact of three natural preparations on the occurrence of pests and diseases on potato (Solanum tuberosum L.)
Abstract:
In 2020 we designed a field experiment at the Biotechnical Faculty in Ljubljana, where we planted potato of the 'Natascha' variety. Before planting we soaked tubers and later sprayed the plants of potatoes three times with Rhizoflo Premium (RH), Bioamino-L (BL) and a product based on bacteria Bacillus amyloliquefaciens (BA). The RH contains rhizobacteria, the BL contains amino acids, and the BA an antagonistic bacterium. They are supposed to stimulate the plant's growth, development of resistance to stress, absorption of nutrients and affect the yield. The purpose of the experiment was to study the effect of products on the germination of potato, the occurrence of Colorado potato beetle (Leptinotarsa decemlineata), wireworms (Agriotes spp.), early blight of potato (Alternaria solani), late blight of potato (Phytophthora infestans), and on the yield of potato. On 1000 m2 large field we designed three blocks in which we conducted three repetitive experiments. In each block we had four treatments, within which we also applied phytopharmaceutical products in three different concentrations (100, 75 and 50% of the recommended dosage). We found significant differences in potato yield among products, while we did not confirm significant differences in the effect on the yield of potato among concentrations of phytopharmaceutical products. We also found out that the used products (RH, BL and BA) did not have an important impact on the occurrence of potato pests and diseases. The treatment with BL proved to be the best of them with an average yield of 26.88 t/ha, the lowest number of Colorado potato beetle occurrences, and the lowest number of holes per potato tuber due to wireworms. Product RP had the lowest effect on potato yield and the highest number of holes per tuber in the treatment with this preparation.

Keywords:potato, infection, damage, early blight of potato, Alternaria solani, wireworms, Agriotes spp., yield, field experiment, amino acids, antagonistic bacteria, Bacillus amyloliquefaciens, rhizobacteria, plant growth promotors

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