Integration of elements of a farming system for sustainable weed and pest management in the tropics

Kathiresan, R. M.

doi:10.1016/j.cropro.2005.11.015

Cited by 35 publications

(26 citation statements)

References 2 publications

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“…The ability of Azolla to grow rapidly, doubling its biomass in 2-4 days, is the most important attribute, along with its free-floating nature (Arora and Saxena 2005;Kathiresan 2007;Sood et al 2008a). Both these qualities help in its easy harvest for disposal or recovery of heavy metals from biomass.…”

Section: Azolla-a Better Macrophyte For Phytoremediationmentioning

confidence: 99%

Phytoremediation Potential of Aquatic Macrophyte, Azolla

Sood

Uniyal

Prasanna

et al. 2011

AMBIO

256

123

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Aquatic macrophytes play an important role in the structural and functional aspects of aquatic ecosystems by altering water movement regimes, providing shelter to fish and aquatic invertebrates, serving as a food source, and altering water quality by regulating oxygen balance, nutrient cycles, and accumulating heavy metals. The ability to hyperaccumulate heavy metals makes them interesting research candidates, especially for the treatment of industrial effluents and sewage waste water. The use of aquatic macrophytes, such as Azolla with hyper accumulating ability is known to be an environmentally friendly option to restore polluted aquatic resources. The present review highlights the phytoaccumulation potential of macrophytes with emphasis on utilization of Azolla as a promising candidate for phytoremediation. The impact of uptake of heavy metals on morphology and metabolic processes of Azolla has also been discussed for a better understanding and utilization of this symbiotic association in the field of phytoremediation.

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Section: Azolla-a Better Macrophyte For Phytoremediationmentioning

confidence: 99%

Phytoremediation Potential of Aquatic Macrophyte, Azolla

Sood

Uniyal

Prasanna

et al. 2011

AMBIO

256

123

View full text Add to dashboard Cite

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“…from aquatic ecosystems along with other macrophytes (Padmesh et al, 2006;Rai and Tripathi 2009;Mashkani and Ghazvini 2009;Sood et al, 2011). This fern has many features that prove it as a better plant system than many other macrophytes, which include: Fast Growth Rate: The ability of Azolla to grow rapidly, doubling its biomass in 2-4 days, is the most important attribute, along with its free-floating nature (Arora and Saxena 2005;Kathiresan 2007;Sood et al, 2008a). Both these qualities help in its easy harvest for disposal or recovery of heavy metals from biomass.…”

Section: Introductionmentioning

confidence: 99%

Effect of Heavy Metals on Biochemical Profile of Azolla filiculoides

Anand¹,

Kumar²,

Sheel³

2017

Int.J.Curr.Microbiol.App.Sci

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“…D'après Clark, l'efficacité du pâturage par les volailles dépendrait de différents facteurs qui sont, entre autres, la densité animale, le temps de pâturage et la fréquence de rotation, ainsi que la composition de la flore herbacée présente [10,13]. Plusieurs solutions pourraient donc être envisageables pour pérenniser le système : diminution de la charge animale par unité de surface, modification des modalités de rotation ou encore combinaison du pâtu-rage avec une autre méthode de désherbage tel que le désherbage mécanique [7,16]. On pourrait également envisager de ne pas placer les volailles sur un couvert spontané mais sur un mélange de plantes de couverture appétibles, installées préalablement.…”

Section: Discussionunclassified

“…Il existe de nombreux ouvrages concernant les recherches sur les systèmes sylvopastoraux utilisant des ruminants [4]. De tels systèmes ont obtenu des résultats encourageants aussi bien en zone tempérée [5,6] qu'en zone tropicale où l'association entre sylviculture et pâturage de bovins est largement pratiquée [7].…”

Section: Introductionunclassified

Les volailles pour un contrôle biologique des adventices dans les vergers

Lavigne

Dumbardon-Martial

Lavigne³

2012

Fruits

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-Introduction. Because of the humid tropical conditions, weed control is an important and permanent job in the outlay of a fruit producer in the West Indies. The practice of chemical weed control is to date the cheapest, but the recurring use of herbicides in the orchards of Martinique leads to soil erosion and water pollution. To mitigate the use of herbicides, we tested the association of poultry with a productive orchard in order to control the weeds. Materials and methods. The system was installed on a plot of 700 m 2 divided into seven plots of 100 m 2 . Two plots were the control treatments and were mowed with a brush cutter. Each of the other five plots was subjected to five geese grazing for a week, then to 20 chickens grazing during the following week, then the plot was left without poultry for three more weeks. Three cycles of such rotations were observed (4 months). Biomass production by botanical groups (Poaceae, Cyperaceae and others) in the experimental plots was measured each week for four months. A monthly index of recovery by botanical group was noted. Results. The total biomass of the herbaceous cover decreased on grazed plots, which allowed the biological control of weeds for four months. Species diversity decreased because of the selection made by poultry for food and cover was homogenized by the percentage increase in biomass of Cyperaceae in the total biomass. This group, the least palatable for poultry, thus flourished on all plots grazed. Discussion. Poultry grazing, particularly geese, proved to be a promising method for controlling weeds in orchards. However, in the case of a high proportion of unpalatable species in the herbaceous cover, other weed control methods should be combined. The installation of a grass cover composed of a mixture of cover crops adapted to the combination of orchard and poultry as well as better management of the animal rotation should be considered to optimize this technique.Martinique / Psidium guajava / orchards / perennials / cultivation / integrated control / weed control / geese / chickens Les volailles pour un contrôle biologique des adventices dans les vergers.Résumé -Introduction. Du fait des conditions tropicales humides, le contrôle des adventices est un poste important et permanent dans les dépenses d'un producteur de fruits aux Antilles. La pratique du désherbage chimique est à ce jour la plus économique, mais l'utilisation récurrente d'herbicides dans les vergers de la Martinique conduit à une érosion des sols et à une pollution des eaux. Pour pallier l'usage d'herbicides, nous avons testé l'association de volailles à un verger productif afin d'en contrôler l'enherbement. Matériel et méthodes. Le dispositif a été installé sur une parcelle de 700 m 2 subdivisée en sept placettes de 100 m 2 . Deux placettes ont constitué les traitements témoins ; elles ont été fauchées à la débroussailleuse. Chacune des cinq autres placettes a été soumise au pâturage de 5 oies pendant une semaine, puis au pâturage de 20 poulets pendant la semaine suivante, ...

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Integration of elements of a farming system for sustainable weed and pest management in the tropics

Cited by 35 publications

References 2 publications

Phytoremediation Potential of Aquatic Macrophyte, Azolla

Phytoremediation Potential of Aquatic Macrophyte, Azolla

Effect of Heavy Metals on Biochemical Profile of Azolla filiculoides

Les volailles pour un contrôle biologique des adventices dans les vergers

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