Cover crops on the development of beggar's-tick

Pacheco, Leandro Pereira; Monteiro, Marinete Martins de Sousa; Petter, Fabiano André; Neto, Francisco de Alcântara; Almeida, Fernandes Antônio de

doi:10.1590/s1983-40632013000200011

Cited by 9 publications

(11 citation statements)

References 14 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Morphological and physiological characteristics of U. ruziziensis allow a greater ground coverage and, consequently, a higher suppressive effect on volunteer RR® corn derived from fluxes subsequent to desiccation. U. ruziziensis dry matter effect and ground coverage rate on weeds was also reported by Pacheco et al (2013b), becoming more evident when the residual disposal rate was above 4.0 t ha -1 . In the present experiment, U. ruziziensis dry matter rate was approximately 6.0 t ha -1 , explaining its effect on RR® corn early development.…”

Section: Resultssupporting

confidence: 56%

“…the highest ground coverage rate allows a better weed control (Goulart et al, 2009;Pacheco et al, 2013b). …”

Section: Resultsmentioning

confidence: 99%

“…Dry matter production and soil coverage provided by cover crops are factors that can help control weeds by physical and chemical processes (allelopathy) (Pacheco et al, 2013b;Petter et al, 2013). The physical effect of mulch helps to shade the soil, inhibiting seed germination and infestation of some troublesome weeds, thus allowing the crop to develop free of initial competition (Queiroz et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Volunteer RR® corn management in roundup ready® soybean-corn succession system

et al. 2015

View full text Add to dashboard Cite

-The present study evaluated the effects of cover crops (Pennisetum glaucum, Crotalaria spectabilis and Urochloa ruziziensis) associated with the application of herbicides {glyphosate; (glyphosate + haloxyfop-R); (glyphosate + fluazifop-p-butyl); (glyphosate + imazethapyr) and (glyphosate + imazaquin)} in soybean desiccation management for volunteer RR® corn control. The experiment was conducted under field conditions at Sinop-MT, during the 2013/2014 crop season, in a randomized complete blocks design with factorial scheme and four replications. The following parameter were evaluated: dry matter of cover crops and ground coverage rate, control of volunteer RR ® corn present at the time of desiccation, dry matter, height and intoxication level on soybean plants caused by herbicides at 7, 14 and 28 days after emergence (DAE), control of volunteer RR ® corn derived from emergence fluxes subsequent to desiccation management and soybean yield. The joint application of (glyphosate + haloxyfop-R) provided the best level of volunteer RR ® corn control present at the time of desiccation. Satisfactory control (80%) of volunteer corn was obtained with the application of (glyphosate + imazethapyr). This treatment displayed an additional residual effect of imazethapyr, which efficiently controled volunteer RR ® corn derived from fluxes subsequent to desiccation management, especially in treatments performed under U. ruziziensis straw. None of the herbicides used in desiccation management caused any significant effect on dry matter, height and phytotoxicity of soybean plants at 7, 14 and 28 DAE nor on grain yield.

show abstract

Section: Resultssupporting

confidence: 56%

“…the highest ground coverage rate allows a better weed control (Goulart et al, 2009;Pacheco et al, 2013b). …”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Volunteer RR® corn management in roundup ready® soybean-corn succession system

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Piatã on the soil surface, DPR and RV of the D. insularis plants were no longer observed. Reduction over 50% of DPR and RF of weeds Bidens pilosa and C. echinatus as usage of cover crops were also observed by Pacheco et al (2013a) and Silva et al (2015). Table 3.…”

Section: Figure 1 Emergence Speed Index (Esi) and Total Number Of Plmentioning

confidence: 78%

“…Physical and allelopathic effects of cover crops on the early development of weeds were reported by Sodré Filho et al (2008) and Pacheco et al (2013a). ESI delay is an important aspect in the management of D. insularis as it provides greater crop competitiveness in the early development and hence it boosts the effectiveness of chemical management through the application of herbicides at earlier stages of development of this species.…”

Section: Figure 1 Emergence Speed Index (Esi) and Total Number Of Plmentioning

confidence: 79%

Uso de plantas de cobertura como ferramenta na estratégia de manejo de capim-amargoso

Petter

Sulzbach²,

Silva³

et al. 2015

RBHerbicidas

Self Cite

View full text Add to dashboard Cite

-The use of cover crops with potential to reduce the development of weeds in crops may represent an important tool in an integrated weed management. To do so, work to evaluate initial development of Digitaria insularis under cover crops residues on the soil surface was conducted in the 2014/2015 crop in a greenhouse. The experimental design was in randomized blocks in a (7x4) + 1 factorial arrangement, and the factors consisted in seven species of cover crops (Pennisetum glaucum, Crotalaria spectabilis, Fagopyrum tataricum, Urochloa brizantha cv. Piatã, Cajanus cajan, Eleusine coracana and Mucuna pruriens) and four levels of dry phytomass (4, 8, 12 and 16 Mg ha -1 ) plus the control treatment without cover crops, with four repetitions. M. pruriens, C. cajan e U. brizantha stood out in the suppression of D. insularis, and 4 Mg ha -1 of dry phytomass of these species were sufficient to promote an expressive reduction in the total number of plants emerged, germination speed index, dry phytomass of the shoots, leaf area, dry phytomass and root volume. For these species, from 8 Mg ha -1 of phytomass development of D. insularis was no longer detected. As for the other species, the control of D. insularis was efficient only with high amounts of phytomass (16 Mg ha -1 ). D. insularis was highly sensitive to the presence of residues on the soil surface, making cover crops cultivation an important tool for the integrated management of this species. Keywords: allelopathy; Digitaria insularis; mulch; weeds; resistance Resumo -O uso de espécies de cobertura com potencial para reduzir o desenvolvimento de plantas daninhas em lavouras podem representar importante ferramenta no manejo integrado de plantas daninhas. Para tanto, conduziu-se na safra 2014/2015 em casa de vegetação um trabalho objetivando avaliar desenvolvimento inicial de Digitaria insularis sob resíduos de plantas de cobertura na superfície do solo. O delineamento experimental foi em blocos casualizados em esquema fatorial (7x4) + 1, sendo os fatores constituídos por sete espécies de plantas de cobertura (Pennisetum glaucum, Crotalaria spectabilis, Fagopyrum tataricum, Urochloa brizantha cv. Piatã, Cajanus cajan, Eleusine coracana e Mucuna pruriens) e quatro níveis de fitomassa seca (4, 8, 12 e 16 Mg ha -1 ), mais o tratamento controle sem plantas de cobertura, com quatro repetições. M.

show abstract

Suppression effect of Crotalaria ochroleuca cover crop on Amaranthus deflexus emergence and development

Sousa¹,

Fonseca²,

Santos³

et al. 2016

Aust J Crop Sci

Self Cite

View full text Add to dashboard Cite

The weed infestation suppression by chemicals released by plants can occur due to crop residues left on the soil surface or through the incorporated straw in the soil. The aim of this study was to evaluate the suppression of Amaranthus deflexus as a result of cover crops and residue amounts of Crotalaria ochroleuca. The experiment was conducted in a greenhouse from May to August, 2014. The experimental design was a randomized block with four repetitions. The treatments were arranged in a factorial scheme (3 x 5) + 1, with the following factors : (A)-management of the cover crops (incorporated, incorporated + surface and soil surface) ; (B)-straw levels (3, 6, 9, 12 and 15 t ha -1 ) and a control treatment without the use of cover crop (control -0 t ha -1 ). The evaluated variables were: total number of emerged plants, emergence speed index, dry mass, leaf area, root dry mass and root volume. The management of different straw amounts was efficient, mainly when the incorporate+surface and surface in suppressing of A. deflexus forms were used.

show abstract

Cover crops on the development of beggar's-tick

Cited by 9 publications

References 14 publications

Volunteer RR® corn management in roundup ready® soybean-corn succession system

Volunteer RR® corn management in roundup ready® soybean-corn succession system

Uso de plantas de cobertura como ferramenta na estratégia de manejo de capim-amargoso

Suppression effect of Crotalaria ochroleuca cover crop on Amaranthus deflexus emergence and development

Contact Info

Product

Resources

About