Cover Crops for Weed Management in Southern Reduced-Tillage Vegetable Cropping Systems

Price, Andrew J.; Norsworthy, Jason K.

doi:10.1614/wt-d-12-00056.1

Cited by 60 publications

(49 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In that region, conventional agricultural production systems are mostly based on monocultures with typically low long-term productivity (Price and Norsworthy, 2013). In contrast, it is also possible to find traditional and originally organic farming production systems, mainly practiced by Forest life zone (Holdridge, 1967), with mean annual temperature of 23°C, mean annual precipitation of 3,500 mm, and distinct wet (April-May) and dry (October-December) seasons (Inamhi, 2014).…”

Section: Introductionmentioning

confidence: 99%

Influence of Tree Cover on Diversity, Carbon Sequestration and Productivity of Cocoa Systems in the Ecuadorian Amazon

Jadán¹,

Cifuentes²,

Torres³

et al. 2015

Bois for. trop.

View full text Add to dashboard Cite

Influence of tree cover on diversity, carbon sequestration and productivity of cocoa systems in the Ecuadorian AmazonB o i s e t f o r ê t s d e s t r o p i q u e s , 2 0 1 5 , n° 3 2 5 ( 3 ) diversité, stoCK de CArBone et produCtivité des CACAoYÈres 35 B o i s e t f o r ê t s d e s t r o p i q u e s , 2 0 1 5 , n° 3 2 5 ( 3 ) diVersitY, CArBon stoCK And CoCoA sYsteMs produCtiVitY 36 RÉSUMÉ INFLUENCE DU COUVERT FORESTIER SUR LA DIVERSITÉ, LES STOCKS DE CARBONE ET LA PRODUCTIVITÉ DES CACAOYÈRES DANS LA RÉGION AMAZONIENNE DE L'ÉQUATEURLa production de cacao dans la région amazonienne de l'Équateur représente une source de revenus importante pour la population locale. Les systèmes de production de cacao varient entre forêt primaire enrichie, systèmes agroforestiers traditionnels et monoculture. Cette étude vise à évaluer la relation entre diversité spécifique, stocks de carbone, productivité agricole et utilisations potentielles des ressources forestières pour trois modes d'utilisation des terres dans la région amazonienne de l'Équateur : agroforesterie à dominante cacaoyère (AF Cacao), monoculture de cacao (Monoculture) et forêt primaire (FP). La connaissance et la quantification des meilleurs compromis entre les différents services écosystémiques liés à la culture du cacao permettent de contribuer à la conservation des forêts primaires et d'optimiser les revenus des populations locales. La richesse spécifique, la diversité bêta, les stocks de carbone (biomasse aérienne et souterraine, nécromasse et sols) et la production de cacao et de bois ont été déterminés pour chaque système de culture sur des parcelles de 1 600 m 2 (n = 28). Nos résultats montrent que la diversité bêta, la richesse spécifique et les stocks de carbone sont significativement plus élevés dans les systèmes FP et AF Cacao, tandis que la production du cacao est 1,5 fois plus élevée en Monoculture que sur les parcelles en AF Cacao. Pour ces deux systèmes, la richesse spécifique, la diversité bêta et les stocks de carbone totaux sont corrélés négativement avec la productivité de cacao. Alors que nos résultats montrent que la monoculture de cacao est plus rentable pour les agriculteurs que l'AF Cacao, un système de rémunération monétaire de la déforestation évitée, basé sur les crédits carbone, pourrait représenter une stratégie viable pour encourager la mise en oeuvre de systèmes AF Cacao, lesquels contribueraient aux efforts de conservation et d'atténuation des effets du changement climatique tout en permettant de maintenir une production commerciale de cacao dans la région.Mots-clés : cacao, systèmes agroforestiers, forêts primaires, Chakra, monoculture, Sumaco, carbone. ABSTRACT INFLUENCE OF TREE COVER ON DIVERSITY, CARBON SEQUESTRATION AND PRODUCTIVITY OF COCOA SYSTEMS IN THE ECUADORIAN AMAZONCocoa production in the Ecuadorian Amazon is an important source of income for the local population. There is a wide variety of cocoa production systems, from enriched primary forests to traditional agroforestry systems and monoculture. This study assesses ...

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of Tree Cover on Diversity, Carbon Sequestration and Productivity of Cocoa Systems in the Ecuadorian Amazon

Jadán¹,

Cifuentes²,

Torres³

et al. 2015

Bois for. trop.

View full text Add to dashboard Cite

show abstract

“…Currently, across all regions and cropping systems, consistent weed control in continuous no-tillage crop production, without chemical weed control, is not considered possible. Tillage plays an important role in preparing a fine seedbed for establishment of certain crops Price and Norsworthy 2013), as well as for incorporation of fertilizers and other soil amendments necessary for crop growth (Légère et al 2013). Moreover, in all symposium papers, some tillage was described as critical for preventing buildup of problematic weeds-particularly perennials-when herbicides are not used.…”

mentioning

confidence: 99%

Towards a No-Till No-Spray Future? Introduction to a Symposium on Nonchemical Weed Management for Reduced-Tillage Cropping Systems

et al. 2013

View full text Add to dashboard Cite

Reduced-tillage systems including no-tillage and striptillage have well-known benefits for conserving and improving soils, protecting vulnerable crops from extreme weather events, and reducing labor and fuel costs associated with full-width inversion tillage (Franzluebbers 2002, 2005; Parsch et al. 2001; Pesant et al. 1987; Spargo et al. 2008). Despite these benefits, reduced-tillage has not been widely adopted in many cropping systems due in part to the increased difficulty of managing weeds when tillage is not used. Not surprisingly, adoption of reduced-tillage has occurred primarily in crops for which low-cost, effective herbicides are available, including glyphosate-resistant soybean [Glycine max (L.) Merr.], corn (Zea mays L.), cotton (Gossypium hirsutum L.), and sugarbeets (Beta vulgaris L.) (Horowitz et al. 2010; Tarkalson et al. 2012). Increased use of a narrow range of herbicides in these cropping systems has exacerbated problems of herbicide resistance (Duke and Powles 2009; Heap 2012). Conversely, adoption of reduced-tillage has been limited in crops where effective herbicides are not available (e.g. in “minor crops” like vegetables) or prohibited (e.g. in organic production systems). Research aimed at identifying nonchemical approaches to managing weeds in reduced-tillage production systems has the potential to increase adoption of reducedtillage while minimizing herbicide use and selection pressure for herbicide resistance in production systems currently using reduced tillage (Figure 1).

show abstract

“…The risks of cover crops are a function of cost and time requirements and should be considered when determining whether to establish cover crops . Cover crops are now being assessed for their contribution to controlling HR weeds, with a focus on reduced‐tillage systems . However, their contribution to weed management is variable, depending on weed population density, specific cover crop and soil and environmental factors …”

Section: Adoption Of Selected Iwm Strategies To Manage Hr Weedsmentioning

confidence: 99%

Integrated pest management and weed management in the United States and Canada

et al. 2014

View full text Add to dashboard Cite

There is interest in more diverse weed management tactics because of evolved herbicide resistance in important weeds in many US and Canadian crop systems. While herbicide resistance in weeds is not new, the issue has become critical because of the adoption of simple, convenient and inexpensive crop systems based on genetically engineered glyphosate-tolerant crop cultivars. Importantly, genetic engineering has not been a factor in rice and wheat, two globally important food crops. There are many tactics that help to mitigate herbicide resistance in weeds and should be widely adopted. Evolved herbicide resistance in key weeds has influenced a limited number of growers to include a more diverse suite of tactics to supplement existing herbicidal tactics. Most growers still emphasize herbicides, often to the exclusion of alternative tactics. Application of integrated pest management for weeds is better characterized as integrated weed management, and more typically integrated herbicide management. However, adoption of diverse weed management tactics is limited. Modifying herbicide use will not solve herbicide resistance in weeds, and the relief provided by different herbicide use practices is generally short-lived at best. More diversity of tactics for weed management must be incorporated in crop systems.

show abstract

Cover Crops for Weed Management in Southern Reduced-Tillage Vegetable Cropping Systems

Cited by 60 publications

References 67 publications

Influence of Tree Cover on Diversity, Carbon Sequestration and Productivity of Cocoa Systems in the Ecuadorian Amazon

Influence of Tree Cover on Diversity, Carbon Sequestration and Productivity of Cocoa Systems in the Ecuadorian Amazon

Towards a No-Till No-Spray Future? Introduction to a Symposium on Nonchemical Weed Management for Reduced-Tillage Cropping Systems

Integrated pest management and weed management in the United States and Canada

Contact Info

Product

Resources

About