Behavior of Pesticides in Rice-Based Agroecosystems: A Review

Roger, Pierre-Armand; Bhuiyan, S. I.

doi:10.1007/978-94-011-0647-4_5

Cited by 7 publications

(5 citation statements)

References 89 publications

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“…In our investigation, endosulfan loss through volatilization was not measured. Several authors ,, have held the concept that volatilization is a significant route of pesticide loss in the field, particularly when it is applied to the surfaces of soils or plants , and this may explain how traces of endosulfan have been found in areas never sprayed such as the Artic and remote areas around the world . In a study of the fate and transport of endosulfan in an Australian cotton field, the authors found approximately 70% of endosulfan dissipating through volatilization, with only a small percentage (8.5%) remaining on-field a month after four foliar applications of Thiodan ULV (total load of 3000 g of ai/ha).…”

Section: Discussionmentioning

confidence: 99%

Dissipation of Endosulfan in Field-Grown Tomato (Lycopersicon esculentum) and Cropped Soil at Akumadan, Ghana

Ntow

Ameyibor

Kelderman

et al. 2007

J. Agric. Food Chem.

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The dissipation and persistence of endosulfan (6,7,8,9,10,10-hexachloro-1,5,5a,6,9,9a-hexahydro-6,9-methano-2,4,3-benzodioxathiepin 3-oxide) applied to field-grown tomato (Lycopersicon esculentum) were studied at a vegetable-growing location in Ghana. Plant tissue samples and cropped soil collected at 2 h-14 days and 8 h-112 days, respectively, after application, were analyzed by gas chromatography-electron capture detection (63Ni) to determine the content and dissipation rate of endosulfan isomers (alpha- and beta-endosulfan) and the major metabolite, endosulfan sulfate. After two foliar applications of commercial endosulfan at 500 g of active ingredient/hectare, the first-order reaction kinetic was confirmed to describe the dissipation of endosulfan residues in tomato foliage and cropped soil. However, functions that best fit the experimental data were the biphasic process for foliage and the monophasic process for cropped soil. Calculated DT 50 and DT 90 values for endosulfan residues in cropped soil were not significantly (p<0.05) different for each of the two isomers.

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Section: Discussionmentioning

confidence: 99%

Dissipation of Endosulfan in Field-Grown Tomato (Lycopersicon esculentum) and Cropped Soil at Akumadan, Ghana

Ntow

Ameyibor

Kelderman

et al. 2007

J. Agric. Food Chem.

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“…Several authors (Farmer et al, 1972;Spencer et al, 1973;Kennedy et al, 2001) have held the concept that volatilisation is a significant route of pesticide loss in the field, particularly when it is applied to the surfaces of soils or plants (Roger and Bhuiyan, 1995), and this may explain how traces of endosulfan have been found in areas never sprayed such as the Artic (Jantunen and Bidleman, 1998) and remote areas around the world (Simonich and Hites, 1995). In a study (Kennedy et al, 2001) of the fate and transport of endosulfan in an Australian cotton field, the authors found approximately 70% of endosulfan dissipating through volatilisation, with only a small percentage (8.5%) remaining on-field a month after four foliar applications of Thiodan ULV (total load of 3000 g of ai/ha).…”

Section: Limit Of Quantificationmentioning

confidence: 99%

The Use and Fate of Pesticides in Vegetable-Based Agro-Ecosystems in Ghana

Ntow¹

2008

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All rights reserved. No part of this publication or the information contained herein may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, by photocopying, recording or otherwise, without written prior permission from the publishers. Although all care is taken to ensure integrity and the quality of this publication and the information herein, no responsibility is assumed by the publishers nor the author for any damage to the property or persons as a result of operation or use of this publication and/or the information contained herein.Published by: Taylor & Francis/Balkema PO Box 447, 2300 AK Leiden, The Netherlands e-mail: Pub. NL@tandf.co.uk www.balkema.nl, www.taylorandfrancis.co.uk, To the memory of Dr. Akosua Werekoa (aka Awo), this thesis is dedicated to her, my wife, Mrs Bernice Worlanyo Ntow and my parents, Francis Andrews Ntow andMargaret Kyei (Yaa Saah), whom God has used to bring me this far. Contents AcknowledgementsChapter 1 Introduction 1Chapter 2 Farmer perceptions and pesticide use practices in vegetable production in Ghana 9Chapter 3 Dissipation of endosulfan in field-grown tomato (Lycopersicon esculentum) and cropped soil at Akumadan 27Chapter 4The impact of agricultural runoff on the quality of two streams at Akumadan and Tono 43Chapter 5 Occupational exposure to pesticides: blood cholinesterase activity in farmers at Akumadan 57Chapter Introduction GeneralWorldwide pesticide usage has increased tremendously since the 1960s. It has largely been responsible for the "green revolution", i.e. the massive increase in food production obtained from the same surface of land with the help of mineral fertilisers (nitrogen, phosphorus, potassium), more efficient machinery and intensive irrigation. The use of pesticides helped to significantly reduce crop losses and to improve the yield of crops such as corn, maize, vegetables, potatoes and cotton. Notwithstanding the beneficial effects of pesticides, their adverse effects on environmental quality and human health have been well documented worldwide and constitute a major issue that gives rise to concerns at local, regional, national and global scales (Planas et al., 1997; Huber et al., 2000; Kidd et al., 2001; Cerejeira et al., 2003). Residues of pesticides contaminate soils and water, persist in the crops, enter the food chain, and finally are ingested by humans with foodstuffs and water. Furthermore, pesticides can be held responsible for contributing to biodiversity losses and deterioration of natural habitats (Sattler et al., 2006). There have been reported instances of pest resurgence, development of resistance to pesticides, secondary pest outbreaks and destruction of non-target species. Despite the fact that pesticides are also applied in other sectors, agriculture can undoubtedly be seen as the most important source of adverse effects (Hoyer and Kratz, 2001; cited in Sattler et al., 2006).The application of different pesticides varies with the region. For instance, in North Ameri...

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“…Promotion of homestead pond‐dike systems holds potential for improving nutritional security through increasing the availability of micronutrient‐rich fish and vegetables for both farming households and non‐farming consumers (Roger & Bhuiyan, ). Considerable nutritional benefits are reported to result through pond‐dike systems either from direct consumption or from expanded income that supports purchase of other cheaper foods, which benefit household food consumption (Ahmed & Lorica, ; Prein & Ahmed, ; Ruddle & Prein, ; Sultana, ; Thilsted & Ross, ).…”

Section: Introductionmentioning

confidence: 99%

The impacts of integrated homestead pond-dike systems in relation to production, consumption and seasonality in central north Bangladesh

Karim¹,

Little

2017

Aquac Res

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The roles of homestead ponds and surrounding dike production of vegetables on farms in peri-urban and rural communities in central north Bangladesh were assessed.A baseline survey sought to characterize actively managed ("active") pond-dike systems, producing fish and vegetables, in terms of productivity and impact compared to less intensively integrated ("passive") and control, no-pond households. A longitudinal survey was carried out over 12 months to explore the relationship between seasonality and livelihood outcomes in relation to location and well-being status. Active homestead pond operators tended to have greater access to information and credit compared to passive and non-pond households; this was likely linked to their greater literacy and greater social connectedness. They enjoyed higher incomes through fish sales and consumed more fish than passive households, which was related to their higher production, in turn explained mainly by the use of more inputs. All active, 50% passive and 38% non-pond households were involved in vegetable cultivation; however, significantly more vegetables were produced by active households than others.The impacts of pond-dike production were more critical for food-vulnerable, rural households than peri-urban households prior to monsoon rice harvest; worse-off households suffered more prior to the "irrigated rice" harvest. Fish and vegetables raised on farm were most important during lower income months. The study supports the view that small homestead ponds can contribute to the wider food supply, and that such "quasi-peasant" forms of aquaculture contribute to reduced poverty and enhanced dietary diversity and food security in the broader population. K E Y W O R D Sconsumption, integrated agriculture-aquaculture, location, pond-dike, productivity, seasonality, well-being

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Behavior of Pesticides in Rice-Based Agroecosystems: A Review

Cited by 7 publications

References 89 publications

Dissipation of Endosulfan in Field-Grown Tomato (Lycopersicon esculentum) and Cropped Soil at Akumadan, Ghana

Dissipation of Endosulfan in Field-Grown Tomato (Lycopersicon esculentum) and Cropped Soil at Akumadan, Ghana

The Use and Fate of Pesticides in Vegetable-Based Agro-Ecosystems in Ghana

The impacts of integrated homestead pond-dike systems in relation to production, consumption and seasonality in central north Bangladesh

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