How Do Off-Season Cover Crops Affect Soybean Weed Communities?

Eduarda Grün, Alexandre Ferigolo Alves, Anelise Lencina da Silva, Alencar Junior Zanon, Arícia Ritter Corrêa, Eduard Mroginski Leichtweis, Roberto Costa Avila Neto and André da Rosa Ulguim ()
Additional contact information
Eduarda Grün: Postgraduate Program in Agronomy, Federal University of Santa Maria (UFSM), Avenida Roraima, 1000, Santa Maria 97105-900, RS, Brazil
Alexandre Ferigolo Alves: Postgraduate Program in Agronomy, Federal University of Santa Maria (UFSM), Avenida Roraima, 1000, Santa Maria 97105-900, RS, Brazil
Anelise Lencina da Silva: Postgraduate Program in Agronomy, Federal University of Santa Maria (UFSM), Avenida Roraima, 1000, Santa Maria 97105-900, RS, Brazil
Alencar Junior Zanon: Phytotechnics Department, Federal University of Santa Maria (UFSM), Avenida Roraima, 1000, Santa Maria 97105-900, RS, Brazil
Arícia Ritter Corrêa: Degree in Agronomy, Federal University of Santa Maria (UFSM), Avenida Roraima, 1000, Santa Maria 97105-900, RS, Brazil
Eduard Mroginski Leichtweis: Postgraduate Program in Agronomy, Federal University of Santa Maria (UFSM), Avenida Roraima, 1000, Santa Maria 97105-900, RS, Brazil
Roberto Costa Avila Neto: Postgraduate Program in Agronomy, Federal University of Santa Maria (UFSM), Avenida Roraima, 1000, Santa Maria 97105-900, RS, Brazil
André da Rosa Ulguim: Crop Protection Department, Federal University of Santa Maria (UFSM), Avenida Roraima, 1000, Santa Maria 97105-900, RS, Brazil

Agriculture, 2024, vol. 14, issue 9, 1-17

Abstract: Weeds compete for environmental resources, leading to reduced soybean yield. In this context, integrated weed management strategies related to cultural control with the use of cover crops are necessary. Our aim was to evaluate weed occurrence in soybean systems with different cover crops. Field studies were conducted at Júlio de Castilhos, Santa Maria, Capão do Leão, Barra do Ribeiro, and Santo Ângelo, Rio Grande do Sul, Brazil. A randomized complete block design with four replications was used. Treatments consisted of black oats ( Avena strigosa Schreb.), white oats ( Avena sativa L.), rye ( Secale cereale L.), hairy vetch ( Vicia sativa L.), forage turnip ( Raphanus sativus L.), and white clover ( Trifolium repens L.) in pure stands or in mixtures. The analyzed variables were relative frequency, density, abundance, and importance value index, similarity index of weeds, dry shoot mass of cover crop, and soybean yield. Cover crops containing white or black oats reduced the relative importance value index of weeds, such as Lollium multiforum , Conyza spp., and Bidens pilosa . Forage turnip, hairy vetch, and white clover showed distinct responses. Black oats and forage turnip did not differ from cover crop mixtures in terms of dry shoot mass and grain yield, being superior to fallow, white clover, and hairy vetch.

Keywords: integrated weed management; winter sow; soybean (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2077-0472/14/9/1509/pdf (application/pdf)
https://www.mdpi.com/2077-0472/14/9/1509/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:14:y:2024:i:9:p:1509-:d:1469978

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().