Results 271 to 280 of about 80,995 (311)
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Biologia, 2014
This paper reports on the current situation in weed vegetation composition on arable land in selected areas of the Czech Republic, assessment of influence of selected variables: applied management systems (conventional, organic), crops (winter cereals, root crops) and altitude and ranking of the importance of these particular factors.
Michaela Kolářová +2 more
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This paper reports on the current situation in weed vegetation composition on arable land in selected areas of the Czech Republic, assessment of influence of selected variables: applied management systems (conventional, organic), crops (winter cereals, root crops) and altitude and ranking of the importance of these particular factors.
Michaela Kolářová +2 more
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WEED SPECIES COMPOSITION IN TERRITORIES OF DIFFERENT TYPES IN VINNYTSIA REGION
BIOLOGY & ECOLOGYThe article highlights the results of studying the taxonomic composition, floristic features and occurrence of weed species in different types of territories in Vinnytsia region – 159 species of weeds belonging to 116 genera from 32 families were found in the investigated lands of different types – segetal (fields) and ruderal (field margins, field ...
O. Shevchuk +6 more
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Environmental Sustainability, 2021
Leafy vegetables are important for food security and human health and nutrition. However, their growth, development and yield are often affected by weeds. Therefore, we investigated the growth performance and ferulic acid composition of Amaranthus species and Mitracarpus villosus in competition with local weed species by measuring growth and ...
Beckley Ikhajiagbe +1 more
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Leafy vegetables are important for food security and human health and nutrition. However, their growth, development and yield are often affected by weeds. Therefore, we investigated the growth performance and ferulic acid composition of Amaranthus species and Mitracarpus villosus in competition with local weed species by measuring growth and ...
Beckley Ikhajiagbe +1 more
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Impact of Management on Weed Species Composition in Organically Cropped Spring Cereals
Biological Agriculture & Horticulture, 2006ABSTRACT Partial Redundancy Analysis (pRDA) was applied to analyse the relationship between weed species composition and agricultural management measures in organically cropped spring cereal fields. Density and dry weight of weed species were assessed in 30 fields situated in the coastal regions of Finland.
Riesinger, Paul, Hyvönen, Terho
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Influence of Herbicide Rotation Treatments on Species Composition of Weeds in Turfgrass
Weed Science, 1982DCPA (dimethyl tetrachloroterephthalate), bensulide [O,O-diisopropyl phosphorodithioateS-ester withN-(2-mercaptoethyl)benzenesulfonamide], and oxadiazon [2-tert-butyl-4(2,4-dichloro-5-isopropoxyphenyl)-Δ2-1,3,4-oxadiazolin-5-one] were applied to bermudagrass [Cynodon dactylon(L.) Pers.
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Dominance, diversity and species composition of the weeds of rice crop in Doon Valley
Journal of Non-Timber Forest Products, 2007Weeds have a direct effect on crop yields when they compete with the crop for nutrients, moisture and light. It is found infested with a variety of ways, which compete with the crop and often cause losses in grain yield ranging from 20-30%. During this study dominance, diversity and species composition of the weeds of Rice field in Doon Valley was ...
Neelam Sharma +3 more
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Weed Research, 2016
SummaryThe goal of this study was to identify factors determining weed species composition in soyabean crops in Hungary, where its expanding production faces difficult weed problems. The abundance of weed flora was measured in 262 fields across the country, along with 38 background variables.
Pinke, Gyula +6 more
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SummaryThe goal of this study was to identify factors determining weed species composition in soyabean crops in Hungary, where its expanding production faces difficult weed problems. The abundance of weed flora was measured in 262 fields across the country, along with 38 background variables.
Pinke, Gyula +6 more
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Weed vegetation of arable land in Central Europe: Gradients of diversity and species composition
Journal of Vegetation Science, 2004Abstract:Question: What are the main broad‐scale spatial and temporal gradients in species composition of arable weed communities and what are their underlying environmental variables?Location: Czech Republic and Slovakia.Methods: A selection of 2653 geographically stratified relevés sampled between 1954–2003 was analysed with direct and indirect ...
Z. Lososová +6 more
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Species composition of weeds in wheat and barley
2011During the period 2008-2009 investigation was performed to determine the species composition and density of weeds in the main cereals (wheat and barley). The aim of study was to establish the weed species diversity and the background of weed infestation in wheat and barley in the region.
Georgiev, M. +4 more
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Formation of weed and pest species composition in lettuce crops and the yield loss
Scientific Papers of the Institute of Bioenergy Crops and Sugar Beet, 2022Purpose. Examine the formation of lettuce yield losses depending on the type of weeds and pests. Methods. Field, mathematical and statistical. Results. The most common in lettuce crops during the growing season are Cirsium avrense, Sonchus avrensis, Ambrosia artemisiifolia, Elymus repens, Sinapis avrensis, and Poligonum convolulus.
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