Weed communities in the organic cultivation of fresh maize intercropped with legumes and coffee husk

Q3 Agricultural and Biological Sciences Revista Facultad Nacional de Agronomia Medellin Pub Date : 2019-05-01 DOI:10.15446/RFNAM.V72N2.68510
Tamara Rocha dos Santos, J. Galvão, Jeferson Giehl, S. P. Coelho, Silvane de Almeida Campos, Beatriz Ferreira Mendonça
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引用次数: 2

Abstract

The objective of this study was to evaluate the phytosociology of the weed communities in maize intercropped with legumes and coffee husk in an organic production system, emphasizing on the relative importance of the weeds and their biomass. The experiment was implemented with the following treatments: T1 - Maize intercropped with Phaseolus vulgaris and weed mowing, T2 – maize intercropped with Crotalaria juncea and weed mowing, T3 - Maize intercropped with Canavalia ensiformis and weed mowing, T4 - Maize intercropped with Cajanus cajan and weed mowing, T5 - Maize grown on soil covered with coffee husk (100 m3 ha-1) and manual weeding and T6 - Maize grown under conventional tillage system and manual weeding (control). The treatments were performed under a random block design with five replications each. A phytosociological analysis of the weeds was performed at stages V4, V8, and R1 to determine the relative importance (RI%) and biomass. The lowest biomass (11.6 g m-2) of weeds occurred when maize was grown on soil covered with coffee husk. In total, 13 species of weeds were identified, being Cyperus rotundus L. the most prevailing species (%). From this study, it was determined that growing maize on soil covered with coffee husk is an alternative to suppress weeds in the organic fresh maize system when coffee husk is available.
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新鲜玉米间作豆科与咖啡壳有机栽培的杂草群落
本研究的目的是评价有机生产系统中玉米间作豆科植物和咖啡壳中杂草群落的植物社会学,强调杂草及其生物量的相对重要性。试验采用以下处理:T1 -玉米间作菜豆和除草,T2 -玉米间作芥菜和除草,T3 -玉米间作菜豆和除草,T4 -玉米间作菜豆和除草,T5 -玉米在覆盖咖啡皮(100 m3 ha-1)的土壤上种植并人工除草,T6 -玉米在常规耕作制度下种植并人工除草(对照)。处理采用随机区组设计,每组5个重复。在V4、V8和R1阶段对杂草进行植物社会学分析,以确定相对重要性(RI%)和生物量。玉米在覆盖咖啡皮的土壤上生长时,杂草生物量最低(11.6 g m-2)。共鉴定出杂草13种,以圆草(Cyperus rotundus L.)居多(%)。本研究确定,在有咖啡壳的有机新鲜玉米系统中,在覆盖有咖啡壳的土壤上种植玉米是一种抑制杂草的替代方法。
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来源期刊
Revista Facultad Nacional de Agronomia Medellin
Revista Facultad Nacional de Agronomia Medellin Agricultural and Biological Sciences-Agricultural and Biological Sciences (miscellaneous)
CiteScore
1.30
自引率
0.00%
发文量
34
审稿时长
16 weeks
期刊介绍: La Revista Facultad Nacional de Agronomía Medellín (RFNA), de la Universidad Nacional de Colombia, Sede Medellín, Facultad de Ciencias Agrarias, es una publicación científica editada desde el año 1939, en formato impreso y digital y de acceso abierto desde la web —sin costo para autores y lectores—. Está orientada a investigadores que crean conocimiento disciplinar y multidisciplinar que articula la ciencia y la tecnología para hacer más productivo el campo a nivel empresarial y de economía campesina. La Revista tiene como objetivo divulgar resultados de investigación mediante artículos originales, inéditos y arbitrados (peer review) de carácter científico que respondan a preguntas específicas y que proporcionen sustento y pruebas a una hipótesis, en aspectos relacionados con las Ciencias Agronómicas, Producción animal, Ciencias Forestales, Ingeniería Agrícola, de Alimentos y otras afines que contribuyan a la solución de los limitantes del agro a nivel nacional, regional e internacional. La Revista recibe y publica, sin ningún costo, artículos en idioma inglés de investigación, revisión, reseñas y cartas al editor. Desde el 2017 la periodicidad de publicación es cuatrimestral, se publican tres números al año con circulación nacional e internacional, en los siguientes períodos: Enero - Abril Mayo - Agosto Septiembre - Diciembre This journal does not charge APCs or submission charges.
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