Effect of weed management with glyphosate on growth and early yield of young cocoa (Theobroma cacao L.)  in Ghana

Konlan, S.; Quaye, Amos Kojo; Pobee, P.; Amon-Armah, Frederick; Dogbatse, Jerome Agbesi; Arthur, A. E.; Fiakpornu, R; Dogbadzi, R.

doi:10.5897/ajar2018.13555

Cited by 9 publications

(2 citation statements)

References 27 publications

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“…Na cultura do cacau, o controle químico torna-se uma alternativa, devido a sua praticidade e baixo custo, utilizado em maior parte na fase de estabelecimento da cultura em campo (Konlan et al, 2019), no entanto, o uso demasiado ou a dosagem inadequada pode promover danos irreversíveis e comprometer a qualidade da lavoura.…”

Section: Introductionunclassified

Herbicidas flumioxazin e clethodim na formação de mudas cacaueiras / Flumioxazin and clethodim herbicides in the formation of cacaueir seedlings

Alves¹,

Junior²,

Dias³

et al. 2021

BJDV

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Section: Introductionunclassified

Herbicidas flumioxazin e clethodim na formação de mudas cacaueiras / Flumioxazin and clethodim herbicides in the formation of cacaueir seedlings

Alves¹,

Junior²,

Dias³

et al. 2021

BJDV

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“…Gulma juga dapat berperan sebagai tanaman inang bagi hama dan penyakit yang akan menyerang tanaman kakao (Lumbantobing et al, 2018). Penurunan produksi kakao akibat gulma mencapai 18% (Aneani & Ofori-Frimpong, 2013) dan biaya yang dikeluarkan untuk pengendalian gulma mencapai 23% dari biaya produksi (Bonaparte & Toseafa, 1975;Konlan et al, 2019).…”

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Diversity of Weed Species in Cocoa Plantations in Banyuwangi, East Java, Indonesia

Khoiri,

Adisa,

Azari

et al. 2023

JRP

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Cocoa (Theobroma cacao L.) is one of the important plantation commodities in Indonesia. However, one of the factors that can affect productivity is weeds because weeds compete with cocoa in getting water, sunlight, nutrients, air, and space to grow. One of the largest cocoa plantation areas in East Java is the Banyuwangi district. Information about the types of cocoa weeds in Banyuwangi is unknown even though weeds in one area are different from another. Weed can reduce the production of cocoa. So, This study is important for determining appropriate control methods. This study aimed to determine the type, diversity, and abundance of weeds. The research method used in this study was a survey with a square-plot size. All weed samples were identified. The results showed that there were twelve types of broadleaf weeds, three types of grass weeds, one type of sedge, and one type of fern. The highest importance value index (IVI) was found in Ottochloa nodosa at 40.91%. The diversity of weeds was in a medium category. Weed diversity in cocoa plantations in Banyuwangi was different from other areas in Indonesia. The results of this research contribute to providing information on the diversity of weeds that can be used in determining weed control strategies in cocoa plantations.

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Herb assemblage dynamics over seven years in different cocoa production systems

2022

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Both agronomic practices and spatial position can determine the assemblage of herbaceous species. We assess the dynamics and the contribution of these two aspects over time to the herb assemblages of different cocoa production systems. Braun-Blanquet surveys were performed over seven years in a long-term trial in Bolivia to compare different cocoa production systems: successional agroforestry (SA) with no external inputs, organic agroforestry (OA) and organic monoculture (OM), both including a leguminous perennial cover crop, conventional agroforestry (CA) and conventional monoculture (CM), where agrochemicals were applied. Using general linear models and multivariate analysis we found that assemblages were mainly driven by spatial position only at the beginning. After this, a very dynamic selection process related to the different management practices took place, which became more stable over the years. We observed a decline in species in both the CA and OA systems, due to the loss of heliophilous species and the low number of new species established in them. The OM presented the most conservative pattern, with the lowest number of new species and species lost, due to the presence of the cover crop. Both the most intensively managed system (CM) and the most diverse and least intensive one (SA) had the highest number of new species recorded over time, which led to highly specialized assemblages, with worldwide distributed and herbicide resistant species in the first case and secondary forest species, in the second. We conclude that the promotion of organic management and agroforestry systems, especially highly divers and successional agroforestry sytems would favour herb assemblages with high conservation value and prevent the establishment of globally distributed species.

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Effect of weed management with glyphosate on growth and early yield of young cocoa (Theobroma cacao L.) in Ghana

Cited by 9 publications

References 27 publications

Herbicidas flumioxazin e clethodim na formação de mudas cacaueiras / Flumioxazin and clethodim herbicides in the formation of cacaueir seedlings

Herbicidas flumioxazin e clethodim na formação de mudas cacaueiras / Flumioxazin and clethodim herbicides in the formation of cacaueir seedlings

Diversity of Weed Species in Cocoa Plantations in Banyuwangi, East Java, Indonesia

Herb assemblage dynamics over seven years in different cocoa production systems

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