Weed shift in a maize ( Zea mays L.) — Sunflower ( Helianthus annuus L.) cropping system

Subbulakshmi, S.; Subbian, P.; Saravanan, N.; Prabakaran, N. K.

doi:10.1556/aagr.57.2009.2.2

Cited by 5 publications

(1 citation statement)

References 8 publications

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“…Maize as a previous crop led to an increased proportion of spring germinating weeds in oilseed rape (Hanzlik and Gerowitt 2011), and according to Mas et al (2010), a preceding maize crop also affected weed community structure in soybean. Subbulakshmi et al (2009) also reported significant changes in weed species composition in a maize and sunflower cropping system as a consequence of crop rotation.…”

Section: Preceding Crop and Field Sizementioning

confidence: 94%

Relating Ambrosia artemisiifolia and other weeds to the management of Hungarian sunflower crops

et al. 2013

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The weed control of sunflower is a 'great challenge' for farmers throughout the World. The main goal of this study is to identify management and environmental factors which determine the weed species composition of sunflower fields. Altogether 49 sunflower fields across Hungary were surveyed for their weed flora, and 11 environmental and 19 management factors (including the use of mechanical weed control and 6 herbicide treatments) were also recorded for the same fields. Using stepwise backward selection this set of predictors was reduced to a minimal adequate model containing 14 terms explaining 37.8% of the total variation in species data. The net effects of 5 variables on species composition were significant, these were soil Mg and Ca content, preceding crop, temperature, and field size. We also performed exploratory forward/backward model selection to reveal influential predictors for several predetermined species groups and individual species. Most of the herbicides appeared to be effective against annual grass species, but no herbicide was universally effective against broad-leaved weeds. Almost all types of weeds were efficiently reduced with mechanical weed control. We obtained a relatively high share of environmental factors in the variation of species composition, which suggests that the success of agrotechnical treatments in sunflower fields strongly depends on a complex of edaphic and climatic constraints. The abundance of the most troublesome weed, Ambrosia artemisiifolia was positively correlated with high soil Ca content, lower temperature, preceding crop cereal, and lower field sizes, while it seemed to be most sensitive to fluorchloridon and propisochlor application.2

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Section: Preceding Crop and Field Sizementioning

confidence: 94%

Relating Ambrosia artemisiifolia and other weeds to the management of Hungarian sunflower crops

et al. 2013

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Asia

Krähmer¹

2016

Atlas of Weed Mapping

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Alternative methods to synthetic chemical control of Cynodon dactylon (L.) Pers. A systematic review

Soares

Galhano

Gabriel

2023

Agron. Sustain. Dev.

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Cynodon dactylon (L.) Pers. is one of the worst agricultural weeds and invasive species in the world, being widely established in many countries. Despite its impact on agriculture and the growing awareness of authorities and consumers about the consequences of synthetic herbicides, alternative control methods for this weed have been poorly reviewed. A systematic review of the literature published over the last 50 years was used to assess the most studied control methods of C. dactylon (excluding synthetic herbicides) and to summarize the trends and knowledge gaps. The major findings are as follows: (1) the number of publications that studied alternative methods to synthetic chemical control in C. dactylon management has been increasing exponentially since 1972; (2) most of the studies were made under controlled conditions (57%) and lack observations under real production conditions; (3) most of the field experiments were carried out in Asia (42%), under temperate subtropical and arid climates; (4) the publication of articles studying allelopathy stands out significantly (50% of the papers found), with two species from the Poaceae family, rice (Oryza sativa L.) and sorghum (Sorghum bicolor (L.) Moench), showing very high allelopathic inhibitory effects (often above 80%), especially under open field conditions; and (5) preventive soil tillage is the most studied treatment among indirect weed control treatments, and although there is a high risk of propagation, the results indicate that tillage can significantly contribute to control C. dactylon, when compared to no-tillage treatments. Further research is needed to optimize treatments and methods so that they can be applied by farmers under real production conditions.

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Weed shift in a maize ( Zea mays L.) — Sunflower ( Helianthus annuus L.) cropping system

Cited by 5 publications

References 8 publications

Relating Ambrosia artemisiifolia and other weeds to the management of Hungarian sunflower crops

Relating Ambrosia artemisiifolia and other weeds to the management of Hungarian sunflower crops

Asia

Alternative methods to synthetic chemical control of Cynodon dactylon (L.) Pers. A systematic review

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