The performance of the leaf mulches ofLeucaena leucocephala, Flemingia macrophylla andGliricidia sepium in weed control

Budelman, A.

doi:10.1007/bf02220113

Cited by 14 publications

(20 citation statements)

References 5 publications

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“…Irwin & Barneby are trees widely tested for agro forestry technologies (Kamara et al, 2000). However, in addition to soil improvement, mulching material also suppresses weed growth (Budelman, 1988). Weed growth has been shown to be suppressed in alley cropping by canopy closure (Yamoah et al, 1986).…”

Section: Introductionmentioning

confidence: 99%

Weed control via intercropping with gliricidia: I. cotton crop

Silva

Carvalho

et al. 2009

Planta daninha

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-The majority of cotton grown commercially in the world has white lint, but recently, there has been a growing interest in colored lint cotton in several countries, including Brazil. The use of naturally-colored fiber reduces chemical pollution. The objective of this paper was to evaluate cotton cultivar fiber yield in response to weed control via intercropping with gliricídia. Cultivars BRS-Verde (greenish fibers), BRS-Rubi (reddish brown fibers), BRS-Safira (brown fibers), and BRS-187 8H (white fibers) were submitted to the following treatments: no hoeing, two hoeings (at 20 and 40 days after transplanting), and cotton intercropped with gliricídia. In the intercropped treatment, gliricídia was planted between rows of cotton plants, using one seedling pit -1 , in pits spaced 50.0 cm apart. Twelve weed species predominated in the experiment, many of them belonging to the Poaceae family. Weeds occurred at different frequencies and in a non-uniform manner in the experimental area. Cultivars did not influence weed dry matter. Intercropping with gliricídia reduced weed dry matter but did not prevent reductions in cotton fiber and seed cotton yield, which were higher in hoed plots. Cultivar BRS Safira had the highest fiber yield, but no differences were observed between cultivars regarding to seed cotton yield.Keywords: naturally-colored cotton fiber, Gliricidia sepium, cultivars.RESUMO -A grande maioria do algodoeiro cultivado comercialmente no mundo possui fibra branca, porém atualmente existe crescente interesse em diversos países, inclusive no Brasil, pelo algodão de fibra colorida. O uso de fibras naturalmente coloridas reduz a poluição química, por dispensar o uso de corantes. O objetivo deste trabalho foi avaliar o rendimento de fibras de cultivares de algodoeiro em resposta ao controle de plantas daninhas por meio da consorciação com a gliricídia (Gliricidia sepium). Os cultivares BRS-Verde (fibras esverdeadas), BRS-Rubi (fibras marrons avermelhadas), BRS-Safira (fibras amarronzadas) e BRS-187 8H (fibras brancas) foram submetidos aos seguintes tratamentos: sem capinas, duas capinas (aos 20 e 40 dias após o transplantio) e consorciação do algodoeiro com a gliricídia. Na consorciação, a gliricídia foi plantada entre as fileiras do algodoeiro, usandose uma plântula por cova, em covas espaçadas por 0,50 m. Doze espécies de plantas daninhas ocorreram no experimento, a maioria delas pertencente à família Poaceae. As plantas daninhas ocorreram com diferentes frequências, distribuídas desuniformemente na área experimental. Os cultivares não influenciaram a matéria seca das plantas daninhas. A consorciação com a gliricídia reduziu a matéria seca das plantas daninhas, mas não evitou reduções nos rendimentos de algodão em fibra e em caroço, que foram maiores nas parcelas que receberam capinas. O cultivar BRS-Safira apresentou o maior rendimento de fibras, porém não houve diferenças entre cultivares quanto ao rendimento de algodão em caroço.Palavras-chave: algodão de fibra naturalmente colorida, Gliricidia sepiu...

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Section: Introductionmentioning

confidence: 99%

Weed control via intercropping with gliricidia: I. cotton crop

Silva

Carvalho

et al. 2009

Planta daninha

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“…For this reason, gliricidia and other species have been extensively tested in agroforestry technologies, in which trees, when pruned, contribute their branches, which are used as soil mulch in associated crops (Kamara et al, 2000). In addition to improving the soil, these branches provide material that serves as soil mulching and suppresses weed growth (Budelman, 1988). Besides the physical suppression exerted on weeds, the decomposition of the material used as soil mulch may also release phytotoxic compounds that inhibit weed growth (Tian & Kang, 1994).…”

Section: Introductionmentioning

confidence: 99%

Influence of corn sowing density and gliricidia intercropping on weed control

et al. 2010

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-There is interest in the identification of the best seeding density for new corn hybrids and on reduced use of herbicides for weed control. The objective of this study was to evaluate the effects of seeding density (30, 50, 70, and 90 thousand plants ha -1 ) and weed control on green ear yield and grain yield in corn cultivar AG 1051. A completely randomized block design was adopted with split-plots (seeding densities assigned to plots) and ten replicates. Weed control was achieved by means of two hoeings and by planting corn intercropped with gliricidia (between corn rows, in pits spaced 0.3 m apart). A "no weeding" treatment was included as well. Increased seeding density increased the total number and weight of marketable green ears and decreased the biomass of both weeds and gliricidia. In non-weeded, intercropped and hoed plots, the maximum grain yield values achieved as seeding density increased were 7,881, 7,021, and 9,213 kg ha -1 , respectively, obtained with populations of 67 thousand, 74 thousand, and 67 thousand plants per hectare, respectively. Intercropping did not control weeds (26 species) and provided weed growth, green ear yield, and grain yield (at the lowest densities) similar to those obtained without hoeing, except for total number of green ears, in which no influence of weed control was observed. At densities of 70 thousand and 90 thousand plants per hectare, grain yield with two hoeings was not different from yield values obtained without weeding or in the treatment intercropped with gliricidia, respectively, indicating that increased corn seeding density as well as gliricidiamay help to control weeds.

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“…O. Kuntze, 5 is its adaptation to higher altitudes (up to 2000 m above sea level). F. macrophylla can be used for a wide range of applications such as soil-improving cover crop or mulch, 6 erosion barrier hedge, 7 firewood and shade-providing shrub in young coffee and cocoa plantations. 8 When intercropped with cassava and maize, it significantly increased the yields of the associated crops.…”

Section: Introductionmentioning

confidence: 99%

Forage quality and tannin concentration and composition of a collection of the tropical shrub legume Flemingia macrophylla

et al. 2006

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A collection of 23 Flemingia macrophylla (Willd.) Merrill accessions of different growth habits and contrasting digestibility and one Flemingia stricta reference accession were assessed for forage quality with particular emphasis on digestibility, condensed tannin concentration and fiber content. Large differences in in vitro dry matter digestibility (IVDMD) (356 to 598 g kg −1 ), content of crude protein (CP) (121 to 254 g kg −1 ) and extractable condensed tannins (CT) (0 to 268 g kg −1 ), protein-binding capacity of extractable CT or astringency (1.7 to 7.9 protein-binding entities) (PBE) and monomer composition of extractable CT were detected. IVDMD and extractable CT were negatively correlated and extractable CT was positively correlated with protein-binding capacity. Prodelphinidin was positively and propelargonidin negatively correlated with protein-binding capacity of extractable CT. The accessions CIAT 18438, CIAT 21083, CIAT 21090 and CIAT 22082 were superior to the most widely used accession CIAT 17403 in terms of forage quality and could be an option in production systems with acid infertile soils. In future evaluations, particular attention needs to be paid to chemical and structural features related to the composition of extractable CT and their effect on nitrogen utilization by ruminants.

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The performance of the leaf mulches ofLeucaena leucocephala, Flemingia macrophylla andGliricidia sepium in weed control

Cited by 14 publications

References 5 publications

Weed control via intercropping with gliricidia: I. cotton crop

Weed control via intercropping with gliricidia: I. cotton crop

Influence of corn sowing density and gliricidia intercropping on weed control

Forage quality and tannin concentration and composition of a collection of the tropical shrub legume Flemingia macrophylla

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