The impacts of ecological mowing combined with conventional mechanical or herbicide management on weeds in orange orchards

Martinelli, Rodrigo; Rufino‐Jr., Luiz Renato; Desiderio, Daniel Rodrigues; Cruz, Ricardo Alcántara‐de la; Monquero, Patrícia Andréa; Azevedo, Fernando Alves de

doi:10.1111/wre.12557

Cited by 4 publications

(3 citation statements)

References 37 publications

(54 reference statements)

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“…A. tenella é uma espécie de difícil controle, pois além da propagação seminal pode multiplicar-se vegetativamente com facilidade por meio de gemas fisiologicamente ativas (Martinelli et al, 2022). Para maior controle da invasora, são necessárias medidas preventivas, como: a limpeza de equipamentos e implementos, evitando que sementes sejam transferidos de uma área infestada para outra não infestada.…”

Section: Resultsunclassified

Levantamento fitossociológico de plantas daninhas na cultura do feijao-caupi em sistemas de plantio direto e convencional

Sousa¹,

Fontes²,

Filho³

et al. 2023

Rev. DELOS

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Objetivou-se realizar o estudo fitossociológico das plantas daninhas em área cultivada com feijão-caupi em sistemas de plantio direto (SPD) e convencional (SPC), no município de Bom Jesus - PI. Para cada sistema de plantio, por ocasião da colheita do feijão-caupi, foram realizados 60 processos de amostragem utilizando um quadrado vazado de 0,16 m2, foram realizadas a identificação, contagem e peso seco da biomassa. Densidade, frequência, abundância e dominância relativas foram calculadas e o índice de valor de importância determinado. Ao final do ensaio, foram identificadas 28 espécies e 12 famílias botânicas, sendo a família Poaceae a mais frequente, seguida pela Malvaceae. No SPC a espécie Alternanthera tenella apresentou maior densidade e acúmulo de massa seca relativa com 11,17 plantas m-2 e 39,67%, respectivamente. No SPD, verificou-se 12 espécies com densidade de 31,32 plantas m-2, sendo Richardia brasiliensis a espécie encontrada em maior densidade (13,20 plantas m-2) e acúmulo de massa seca relativa (46,86%). O sistema de plantio direto modificou a dinâmica da comunidade infestante, reduzindo a densidade total de plantas infestantes em 48% e 52% no acúmulo de massa seca relativa em relação ao plantio convencional.

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Section: Resultsunclassified

Levantamento fitossociológico de plantas daninhas na cultura do feijao-caupi em sistemas de plantio direto e convencional

Sousa¹,

Fontes²,

Filho³

et al. 2023

Rev. DELOS

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“…However, a disadvantage of cover crops is that they cannot suppress intra-row weeds. To address this, Martinelli et al (2022) used mowers that cut the cover crop and move the residue to the intra-row area.…”

Section: Cover Crop Selectionmentioning

confidence: 99%

Current and future glyphosate use in European agriculture

Neve,

Matzrafi,

Ulber

et al. 2024

Weed Research

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There has been a longstanding and contentious debate about the future of glyphosate use in the European Union (EU). In November 2023, the European Commission approved the renewal of the use registration for glyphosate for a further 10 years. Nevertheless, the EU Farm to Fork strategy calls for a 50% reduction in pesticide use by 2030. In November 2022, the European Weed Research Society organised a 2 day workshop to identify critical glyphosate uses in current EU cropping systems and to review the availability of glyphosate alternatives. Workshop participants identified four current, critical uses in EU cropping systems; control and management of perennial weeds, weed control in conservation agriculture, vegetation management in tree and vine crops and herbicide resistance management. There are few herbicide alternatives that provide effective, economic, broad‐spectrum control of weeds, particularly perennial weeds. Mechanical weed control, and in particular, soil cultivation is the most obvious glyphosate alternative. However, this is not possible in conservation agriculture systems and, in general, increased soil cultivation has negative impacts for soil health. Emerging technologies for precision weed control can enable more targeted use of glyphosate, greatly reducing use rates. These technologies also facilitate the use and development of alternative targeted physical weed control (e.g. tillage, lasers, electricity), reducing the energy and environmental costs of these approaches. In tree crops, the use of organic and inorganic mulches can reduce the need for glyphosate use. In general, reduced use of glyphosate will require an even greater focus on integrated weed management to reduce weed establishment in agroecosystems, increase weed management diversity and limit the use of alternative resistance‐prone herbicides.

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“…Several environmental factors, such as plant spacing, plant age, soil quality, plant arrangement, and prevailing weather conditions, contribute to the proliferation of weeds in proximity to citrus trees [12]. Analysis of interview data revealed that employing individuals for weed removal constitutes a substantial portion, ranging from 20% to 25%, of total production costs.…”

Section: Introductionmentioning

confidence: 99%

Identification and Potential of Secondary Metabolism of Weeds as Bio Herbicides in Environmentally Friendly Citrus Cultivation

Nugroho,

Salim,

Jumiatun

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Production of oranges in Indonesia increased from 1.78 million tons to 2.16 million tons in 2014. In 2016, Indonesia imported 2,212 tons of oranges. Weed plants caused a decline in orange production, leading to a decrease in harvest yields by 61%. The research aimed to identify weed species and the potential secondary metabolism of dominant weeds on orange plants. The research method utilized weed vegetation analysis, focusing on the Summed Dominance Ratio (SDR). The treatments with kirinyuh extract (P0) were as follows: (Control); P1: 20%; P2: 40%; P3: 60%; P4: 80%. Observation parameters included phytotoxicity, wet weight, and dry weight. The research results revealed 10 families, 25 species, and 400 weed individuals. Weeds with the highest SDR value were of the Oldenlandia corymbose type, with a Summed Dominance Ratio (SDR) of 7.28%, and the second-highest SDR value was Euphorbia hirta weed with 7.22%. The lowest was the Richardia brasiliensis weed with an SDR value of 0.633%. Phytotoxicity on kirinyuh leaf plants was highest in P4 with a concentration of 80g/l at 47.33. Wet weight and dry weight influenced P4 concentration, with an 80g/l concentration most inhibiting the growth of kirinyuh leaves. Laboratory analysis of flavonoid, total phenolic, and tannin content showed that Euphorbia hirta weed had higher levels compared to Oldenlandia corymbose weed.

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The impacts of ecological mowing combined with conventional mechanical or herbicide management on weeds in orange orchards

Cited by 4 publications

References 37 publications

Levantamento fitossociológico de plantas daninhas na cultura do feijao-caupi em sistemas de plantio direto e convencional

Levantamento fitossociológico de plantas daninhas na cultura do feijao-caupi em sistemas de plantio direto e convencional

Current and future glyphosate use in European agriculture

Identification and Potential of Secondary Metabolism of Weeds as Bio Herbicides in Environmentally Friendly Citrus Cultivation

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