Weed species composition of conventional soyabean crops in Hungary is determined by environmental, cultural, weed management and site variables

Pinke, Gyula; Blazsek, K.; Magyar, László András; Nagy, Katalin; Karácsony, Péter; Czúcz, Bálint; Botta‐Dukát, Zoltán

doi:10.1111/wre.12225

Cited by 19 publications

(43 citation statements)

References 38 publications

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“…3). This is in accordance with the findings of other Hungarian (Pinke et al, 2016(Pinke et al, , 2013(Pinke et al, , 2012 and similar European studies (de Mol et al, 2015;Lososov a et al, 2004), where climatic and edaphic factors were more important than land use. Anyway, it should be noted that large gradients can positively influence the importance of environmental factors.…”

Section: Environmental Variablessupporting

confidence: 93%

“…Our earlier studies showed that due to their large gradient length, environmental factors were the most important drivers in determining the weed species composition in Hungarian summer arable weed vegetation (Pinke et al, 2012) and also in soybean fields (Pinke et al, 2016). Hungarian oil pumpkin production is generally concentrating in three different regions in the western, south-eastern and northern part of the country.…”

Section: Introductionmentioning

confidence: 99%

“…Because of the contrasting soil and weather conditions, environmental variables are expected again to play the largest role in determining weed species composition of these fields. Nevertheless, in our recent study in soybean crops, where chemical weed management are regarded as an indispensable element of the production, herbicides turned to be more important than cultural practices (Pinke et al, 2016). Oil pumpkin crops after all, where herbicides are generally considered only as supplemental tools along the much more important cultural practices and mechanical weed control (Farkas, 2015), offer a good opportunity for studying the assumed relevance of non-chemical weed management.…”

Section: Introductionmentioning

confidence: 99%

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When herbicides don't really matter: Weed species composition of oil pumpkin (Cucurbita pepo L.) fields in Hungary

et al. 2018

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a b s t r a c tOil pumpkin is a major emerging alternative crop with several unresolved weed management questions in central-eastern Europe, one of the focal regions of oil pumpkin production worldwide. This study aims to assess the importance of three groups of factors: environment, non-chemical management (all management excluding herbicides), and chemical weed management, in determining the weed species composition of oil pumpkin crops in Hungary. We surveyed the weed flora of 180 oil pumpkin fields across the country, along with 32 background variables. Applying a minimal adequate model consisting of 18 terms with significant net effects, 30.8% of the total variation in weed species data could be explained. Most variation in species composition was determined by environmental factors, with climatic conditions (precipitation and temperature) being most influential. The net effects of seven non-chemical management variables (preceding crop, N and P fertilisers, seeding rate, crop cover, cultivating tillage, and manual weed control), and two herbicides (S-metolachlor and linuron) were also significant. Variation partitioning demonstrated the dominance of environmental factors, and it also showed that nonchemical management practices accounted for five times more variance than herbicides. Within nonchemical management, the relative impact of cultural variables was nearly five times larger than that of mechanical weed management. Among the abundant weeds, Chenopodium polyspermum and Ambrosia artemisiifolia were positively associated with precipitation, Datura stramonium and Hibiscus trionum correlated with higher temperature, and Chenopodium album favoured larger potassium content of the soil. High seeding rate and crop cover suppressed Amaranthus retroflexus, cultivating tillage reduced Ambrosia artemisiifolia and Setaria pumila, while conspicuous tall weeds like Abutilon theophrasti and Chenopodium album were most vulnerable to manual weed control. Although the short stature of pumpkin with its poor weed-suppressive ability could unfavourably influence the results of some cultural practices, our findings suggest that the weed vegetation of oil pumpkin fields can be efficiently managed also with environmentally benign methods.

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Section: Environmental Variablessupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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When herbicides don't really matter: Weed species composition of oil pumpkin (Cucurbita pepo L.) fields in Hungary

et al. 2018

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“…As expected, soil physical and chemical properties, such as texture, Ca, K, Mg, P and humus content, exerted significant effects on the occurrence of certain weed species (Pinke et al ., , ). For example, we found that Cirsium arvense (L.) Scop., a species common in all crop types, preferred soils with high humus and Mg content, but avoided alkaline soils.…”

Section: Discussionmentioning

confidence: 99%

Weed species composition of small‐scale farmlands bears a strong crop‐related and environmental signature

et al. 2017

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Summary Weed species loss due to intensive agricultural land use has raised the need to understand how traditional cropland management has sustained a diverse weed flora. We evaluated to what extent cultivation practices and environmental conditions affect the weed species composition of a small‐scale farmland mosaic in Central Transylvania (Romania). We recorded the abundance of weed species and 28 environmental, management and site context variables in 299 fields of maize, cereal and stubble. Using redundancy analysis, we revealed 22 variables with significant net effects, which explained 19.2% of the total variation in species composition. Cropland type had the most pronounced effect on weed composition with a clear distinction between cereal crops, cereal stubble and maize crops. Beyond these differences, the environmental context of croplands was a major driver of weed composition, with significant effects of geographic position, altitude, soil parameters (soil pH, texture, salt and humus content, CaCO3, P2O5, K2O, Na and Mg), as well as plot location (edge vs. core position) and surrounding habitat types (arable field, road margin, meadow, fallow, ditch). Performing a variation partitioning for the cropland types one by one, the environmental variables explained most of the variance compared with crop management. In contrast, when all sites were combined across different cropland types, the crop‐specific factors were more important in explaining variance in weed community composition.

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“…According to a recent European study soil texture, soil pH and altitude were also among the most important factors determining weed species composition in conventional soybean fields (Pinke et al, 2016). In Europe and even on other continents weed species composition in different crops was most affected by edaphic factors (especially soil pH and soil texture) and altitude (Hanzlik and Gerowitt, 2016 …”

Section: Resultsmentioning

confidence: 99%

Factors associated with weed occurrence in Southwest region of Gois

Santos¹,

ProcÃ3pio²,

Silva³

et al. 2016

Afr. J. Agric. Res.

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After the introduction of Roundup Ready® technology, there were changes in community composition of weeds in the Southwest of Goiás. In this sense, this study aimed at evaluating weed distribution in different cropping systems in this region. Thus, phytosociological survey was conducted in three different periods. Studies were conducted on thirty-five areas derived from combined soybean crops resistant to glyphosate and conventional soybean, maize, sorghum, millet or fallow in succession. The number of individuals of weeds, dry biomass of soil surface and edaphoclimatic data was obtained in order to describe the variables responses of floristic composition. The factors associated to the total occurrence of species were evaluated and five species difficult to control (Cenchrus echinatus, Alternanthera tenella, Chamaesyce hirta, Euphorbia heterophylla e Glycine max) in regression analysis on tree were selected. A total of 3,219 individuals among 79 species were recorded. Regarding total occurrence of species period desiccation of main crop pre-planting (44.80 pl. 5 m 2 ) and on sites that showed pH> 5,37 (51.20 pl. 5 m 2 ) had higher infestations. Voluntary soybean was found in off-season, preferably with high sand content. Species of hard control, tolerant or resistant to herbicides were diagnosed in areas study.

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Weed species composition of conventional soyabean crops in Hungary is determined by environmental, cultural, weed management and site variables

Cited by 19 publications

References 38 publications

When herbicides don't really matter: Weed species composition of oil pumpkin (Cucurbita pepo L.) fields in Hungary

When herbicides don't really matter: Weed species composition of oil pumpkin (Cucurbita pepo L.) fields in Hungary

Weed species composition of small‐scale farmlands bears a strong crop‐related and environmental signature

Factors associated with weed occurrence in Southwest region of Gois

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