How Soil-Applied Maltodextrin with Caraway (Carum carvi L.) Oil Affects Weed and Soil Microbiological Activity in Maize (Zea mays L.) Stands

Agnieszka Synowiec , Anna Lenart-Boroń , Jan Bocianowski , Andrzej Lepiarczyk , Danuta Kalemba

Abstract

The essential oil (EO) of caraway (Carum carvi L.) is a confirmed source of herbicidal compounds. Therefore, the object of this study was to determine the effect of soil-applied maltodextrin (MD) microcapsules containing approximately 12% caraway EO on weed infestation in maize (Zea mays) stands, the yield of maize and the number of colonies of soil microbes. A two-year field experiment was set up in a randomized block design on brown podzolic soil. It was shown that the MD-EO microcapsules affected the number of only some annual weeds, such as G. quadriradiata, G. parviflora, and E. crus-galli. The dry mass of monocotyledonous and dicotyledonous weeds was significantly reduced by all the MD treatments, on average by 45-65% and 35-65%, respectively, compared to the control. The number of maize plants and cobs per 1 m2 was reduced by 17% and 21%, respectively, following the MD-EO treatments. The mass of the cobs was unaffected by the MD-EO treatments. The application of MD-EO caused a significant decrease in the number of soil mesophilic bacteria colonies but did not affect the amounts of phenolic compounds in the soil. In conclusion, the soil application of caraway EO within MD microcapsules has a potential as a natural weed control agent but should be studied further to optimize its dose and timing of application for weed control in maize stands.
Author Agnieszka Synowiec (FoAE / DoAaAE)
Agnieszka Synowiec,,
- Department of Agrotechnology and Agricultural Ecology
, Anna Lenart-Boroń (FoAaE / DoM)
Anna Lenart-Boroń,,
- Department of Microbiology
, Jan Bocianowski
Jan Bocianowski,,
-
, Andrzej Lepiarczyk (FoAE / DoAaAE)
Andrzej Lepiarczyk,,
- Department of Agrotechnology and Agricultural Ecology
, Danuta Kalemba
Danuta Kalemba,,
-
Journal seriesPolish Journal of Environmental Studies, ISSN 1230-1485, e-ISSN 2083-5906, (N/A 40 pkt)
Issue year2020
Vol29
No1
Pages817-826
Publication size in sheets0.5
Keywords in EnglishMicrocapsules, phenolic compounds, soil microbiota, yield
ASJC Classification2300 General Environmental Science; 2304 Environmental Chemistry
DOIDOI:10.15244/pjoes/102365
URL http://www.pjoes.com/pdf-102365-44450?filename=How%20Soil-Applied.pdf
Languageen angielski
Score (nominal)40
Score sourcejournalList
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.631; WoS Impact Factor: 2018 = 1.186 (2) - 2018=1.3 (5)
Citation count*
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FinansowanieOur research was supported by the Polish Ministry of Science and Higher Education as part of the statutory activities of the University of Agriculture in Kraków (DS 3124).
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