Interação competitiva de Brachiaria brizantha e B. plantaginea sob doses reduzidas de fluazifop-p-butil, aplicadas em diferentes épocas

Silva, A.C.; Freitas, Rogério Soares de; Ferreira, Lino Roberto; Silva, A.A.; Belo, Alessandra Ferreira

doi:10.1590/s0100-83582005000100010

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…Oliveira Júnior et al (2010) also found no reduction in intercropping soybean and palisadegrass cultivar MG-4. Th ese results show the lowest degree of risk of the intercropping using soybean cultivars with earlier cycle, in these locations without use of herbicides, as reported by Silva et al (2004Silva et al ( , 2005Silva et al ( , 2006Silva et al ( , 2009 and Pereira et al (2011) who also found no diff erence in grain yield of soybean intercropped with palisadegrass compared to sole cropped soybean.…”

Section: Discussionsupporting

confidence: 79%

An Innovative Crop–Forage Intercrop System: Early Cycle Soybean Cultivars and Palisadegrass

et al. 2012

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Agriculture and livestock integration is a sustainable practice that improves both crop yield and pasture recuperation/formation. However, to achieve success it is important to identify crop cultivars more adapted to intercropping with grasses. Th erefore, the objective was to evaluate nutrient concentration and grain yield of soybean [Glycine max (L.) Merr.] cultivars with diff erent life cycles as aff ected by palisadegrass [Brachiaria brizantha (Hochst. ex A. Rich) Stapf] intercropped in the same furrow at diff erent depths, in a no-till system, as well as dry matter production and protein concentration of palisadegrass pasture. Experiments were performed during two growing seasons, on a Typic Haplorthox, at Botucatu, São Paulo State, Brazil. Th e experimental design was a randomized block, arranged in a 2 × 4 factorial scheme, with six replications. Treatments consisted of two cropping systems (sole cropped soybean; soybean and palisadegrass intercropped) and four soybean cultivars (super-early cycle [Monsoy 6101], early cycle [Embrapa 48], normal cycle [BRS 133], and late cycle [Emgopa 313]). Life cycle duration of the soybean had a marked eff ect, and only early cycle soybean were successful intercrops. Intercropping palisadegrass with super-early or early soybean cultivars were viable options to crop-livestock integration, because they did not aff ect both soybean or palisadegrass yield. In addition, with these cultivars, it was possible to cultivate grain and then aft erward more time for cattle (Bos taurus and Bos indicus) grazing in the same area, providing greater revenue compared to sole soybean cropped or in the intercropping with longer cycle cultivars.

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Section: Discussionsupporting

confidence: 79%

An Innovative Crop–Forage Intercrop System: Early Cycle Soybean Cultivars and Palisadegrass

et al. 2012

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“…In a study on the competitive interaction of B. brizantha and B. plantaginea under reduced doses of fluazifop-pbutyl, applied in different periods (14, 24 and 34 days after plant emergence), Silva et al (2005) concluded that B. plantaginea was more susceptible to fluazifop-p-butyl than B. brizantha, and that plants of both species subjected to 62.5 g ha -1 of fluazifop-p-butyl were controlled. However, these authors did not study the effects of this herbicide in more advanced development stages of these grasses as well as the resilience of B. brizantha.…”

Section: Resultsmentioning

confidence: 99%

Brachiaria brizantha control by using fluazifop-p-butil on Tifton 85 pasture formation

Santos¹,

Ferreira²,

Freitas³

et al. 2012

R. Bras. Zootec.

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-This study was carried out with the aim of assessing the efficacy of the fluazifop-p-butyl herbicide to control Sixty days after application, plants were harvested at ground level and oven-dried. Regrowth was assessed in the same manner, 60 days after cutting, to determine their dry weight. Control of B. brizantha was noted to be above 50%, from doses of 218.75 g ha -1 at 45 days after application. The fluazifop-p-butylherbicide did not show to be efficient in the control of B. brizantha in the doses assessed and caused intoxication to Tifton 85 plants.

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Produtividade de arroz no sistema integração lavoura-pecuária com o uso de doses reduzidas de herbicida

et al. 2011

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Em vista da enorme área de pastagens degradadas na Região Norte de Mato Grosso, tornam-se necessárias pesquisas de alternativas para sua recuperação. No presente trabalho o objetivo foi avaliar os efeitos de doses reduzidas de cyhalofop butil e épocas de semeadura da forrageira, no consórcio de Brachiaria brizantha cv Marandu com a cultura do arroz. O trabalho foi desenvolvido nas safras 2005/2006 e 2006/2007 em delineamento experimental de blocos casualizados, com quatro repetições, no esquema fatorial 2x6, constituído pela combinação de duas cultivares de arroz (BRS Primavera e BEST 2000) e seis alternativas de renovação, sendo quatro com doses reduzidas do herbicida cyhalofop butil (0; 0,40; 0,80 e 1,2 L ha-1) e duas por semeadura a lanço aos 10 e 20 dias após a emergência do arroz. No segundo ano, o esquema utilizado foi 2x8 em que, além dos tratamentos do primeiro ano, foram acrescentados a semeadura de braquiária em sulco, na entrelinha, aos 20 e 30 dias após a emergência do arroz. Foram avaliados: número de perfilhos e de panículas m-2, rendimento de engenho, massa de cem grãos e produtividade. Pode-se concluir que BRS Primavera tem melhor desempenho quando o desenvolvimento da forrageira ocorre satisfatoriamente. A semeadura da forrageira a lanço não é viável e doses iguais ou superiores a 0,80 L ha-1 de cyhalofop butil são eficazes como alternativa na recuperação de pastagens.

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Interação competitiva de Brachiaria brizantha e B. plantaginea sob doses reduzidas de fluazifop-p-butil, aplicadas em diferentes épocas

Cited by 4 publications

References 9 publications

An Innovative Crop–Forage Intercrop System: Early Cycle Soybean Cultivars and Palisadegrass

An Innovative Crop–Forage Intercrop System: Early Cycle Soybean Cultivars and Palisadegrass

Brachiaria brizantha control by using fluazifop-p-butil on Tifton 85 pasture formation

Produtividade de arroz no sistema integração lavoura-pecuária com o uso de doses reduzidas de herbicida

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