Environmental Efficiency of Ecologically Engineered Rice Production in the Mekong Delta of Vietnam

Tú, Võ Hồng; Yabe, Mitsuyasu; Trang, Nguyễn Thùy; Khải, Huỳnh Việt

doi:10.5109/1543414

Cited by 21 publications

(9 citation statements)

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“…In the above study, two crops viz., marigold and blackgram has been raised in the paddy field borders and pheromone traps @ 12/ha was advocated in the EEPM. But in the present investigation apart from raising combination of crops as border crop the other management strategies such as seedling dip, pheromone traps and need based one insecticide application has been The eco rice farmers had higher input and outputoriented technical efficiency scores which were insignificant compared to those with normal rice (Tu and Yabe, 2015). The farmers fields and ecologically engineered fields produced similar rice yields but the ecologically engineered fields saved US$150/ha on insecticides and gained US$120/ ha from the sesame seed that was produced on the bunds (Lu et al, 2015).…”

Section: Resultsmentioning

confidence: 55%

Demonstration of Ecological Engineering based Pest Management in Rice Oryza sativa L. through Farmers Participatory Approach

Shanmugam

Sangeetha

Ayyadurai

et al. 2021

ASD

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Background: Rice is one of the predominant cereal crop grown in Dharmapuri district of Tamil Nadu state, India in approximately 4000 hectares with a average productivity of 4500 kg/ha. Hoppers, stem borer, leaf folder, gall midge and ear head bugs are the major insect pests for which farmers resort management practices. Instead of curative management, farmers mostly use the insecticide as prophylactic management which leads to unwarranted problems. Though integrated pest management has been advocated as an alternate strategy, farmers are reluctant to use all the components of IPM and rely on mostly on insecticides. In this context, the ecological engineering pest management can form a better alternative, which also coincides with the age old practice of growing border crops in this region Methods: The potential of Ecological Engineering Pest Management (EEPM) was assessed in comparison with Integrated Pest Management (IPM) and Farmers Practice (FP) in five farmer’s fields. Based on the results, ten and twenty front line demonstrations were conducted during consecutive years to study the performance of EEPM in Dharmapuri district. Result: The number of hopper/hill, per cent dead heart, per cent white ears in the EEPM was 10.65, 7.07 and 9.65 and in the IPM module 10.18, 8.40 and 11.55 and in the farmers practice 6.73, 10.73 and 12.75 respectively. The natural enemies viz., coccinellids/hill and spiders/hill were more in EEPM (2.00 and 3.15) and least in the farmers practice (0.40 and 0.86). The number of hoppers/hill, per cent dead heart, number of coccinellids/hill and number of spiders per hill was 8.40, 6.00, 3.00 and 1.40 in EEPM and 6.20, 5.40, 1.20 and 0.60 in farmers practice respectively in the 2016-17 front line demonstrations. The EEPM module recorded 8.1, 8.65, 3.5 and 1.75 hopper/hill, per cent dead heart, coccinellids/hill and spiders/hill in 2017-18 front line demonstrations. The farmers were able to save Rs. 5000/- from the plant protection cost apart from getting additional revenue in EEPM. The combination of border crops, influence of border crop on rodent damage in rice ecosystem and benefits of providing separate niche area than border crop are the researchable areas. In spite of above constraints the EEPM can be followed in rice ecosystem with the locally available crop combination to reduce the insecticide usage and increase the beneficials.

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Section: Resultsmentioning

confidence: 55%

Demonstration of Ecological Engineering based Pest Management in Rice Oryza sativa L. through Farmers Participatory Approach

Shanmugam

Sangeetha

Ayyadurai

et al. 2021

ASD

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“…It aims to develop stochastic frontier models based on the deterministic parameter frontier of Aigner et al [19]. Since shrimp production is an example of single output and multiple-input production, this study focuses on the use of an econometric approach for measuring technical efficiency based on the production frontier model in Cobb-Douglas function form, which was commonly applied to estimate the stochastic production frontier in agricultural production [10,16,[20][21][22][23][24][25][26]. The stochastic production function of the i-th farmer in Cobb-Douglas form is given as follows:…”

Section: Analytical Frameworkmentioning

confidence: 99%

Technical Efficiency and Output Losses in Shrimp Farming: A Case in Mekong Delta, Vietnam

Thach

Tú

Lee

2021

Fishes

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The conversion from black tiger shrimp farming and crop farming to white leg shrimp production is widespread in Vietnam’s Mekong Delta provinces. However, this conversion trend also contains many risks related to the technical aspects of the production process. The study mainly aims to estimate the technical efficiency of white leg shrimp farming. It also compares the technical efficiency of white leg shrimp farming between the traditional group that historically has cultivated white leg shrimp and the group that recently converted from black tiger shrimp and crops to white leg shrimp, in order to evaluate the efficiency and adaptability of shrimp farming. Primary data were collected by directly interviewing 99 farmers in traditional areas and 101 farmers in recently converted areas in the study sites and analyzed by using the stochastic frontier method. The calculated technical efficiency was around 72.9 percent, suggesting that farmers could increase their output level by about 27.1%, given constant inputs. There was no difference in the technical efficiency of the two groups, indicating that the converted farms have sufficient adaptability when switching to white leg shrimp farming. The output loss in farmers’ production is still very high, with an average loss of 1973 kg/hectare.

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“…To maintain this fundamental nutritional resource, Vietnamese farmers have used agrochemicals at a rate that has far exceeded the concomitant improvements in rice productivity (Heong et al, 1994;Dung and Dung, 1999;Dasgupta et al, 2007;Heong and Hardy, 2009;Tu et al, 2015). The over-application of agrochemicals has had many detrimental environmental consequences, including pollution, biodiversity losses and upstream-downstream water use conflicts (Heong et al, 1994;Dung and Dung, 1999;Heong and Hardy, 2009;Bosma et al, 2012;Tu et al, 2015). For decades, Vietnamese policymakers have juggled trade-offs, implementing programs that would secure domestic rice supplies with the consequences of environmental pollution.…”

Section: Introductionmentioning

confidence: 99%

“…Rice is a staple food that is consumed daily, and it is the mainstay of rural farmers’ livelihoods. To maintain this fundamental nutritional resource, Vietnamese farmers have used agrochemicals at a rate that has far exceeded the concomitant improvements in rice productivity (Heong et al , 1994; Dung and Dung, 1999; Dasgupta et al , 2007; Heong and Hardy, 2009; Tu et al , 2015). The over-application of agrochemicals has had many detrimental environmental consequences, including pollution, biodiversity losses and upstream-downstream water use conflicts (Heong et al , 1994; Dung and Dung, 1999; Heong and Hardy, 2009; Bosma et al , 2012; Tu et al , 2015).…”

Section: Introductionmentioning

confidence: 99%

“…The use of synthetic fertilizers and pesticides enabled this productivity improvement, but as in many other countries, the over-application of agrochemicals has had many detrimental environmental consequences (Heong et al , 1994; Dung and Dung, 1999; Heong and Hardy, 2009; Bosma et al , 2012; Tu et al , 2015). To ameliorate these consequences, the Vietnamese national government has made several attempts to persuade farmers to adopt various eco-friendly agricultural production models, including those that encourage ecosystem-based strategies and certification of “good agricultural practices” for fertilizer and pesticide use.…”

Section: Introductionmentioning

confidence: 99%

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Urban Vietnamese consumers’ preferences for attributes of sustainably produced rice

Trang

Kopp

Tú

et al. 2023

JCM

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Purpose The purpose of the present research is to examine the comparative values that urban Vietnamese consumers place on attributes of rice that is produced using environmentally friendly methods. The authors consider the impacts that this may have on the livelihoods of rural Vietnamese small farmers. Rice is an “impure public good” that includes both “private” and “public” attributes that consumers consider in their purchase decisions. Consumers make tradeoffs between environmentally and socially beneficial practices (public goods) and perceptions of product quality (private goods). The authors used latent class modeling to investigate the values associated with attributes of rice that is produced using sustainable farming practices. Design/methodology/approach The authors used a discrete choice experimental design in which consumers stated their choices among combinations of rice attributes. The survey provided responses from 360 urban Vietnamese consumers and allowed to estimate the preferences and nonpecuniary values for rice grown using different levels of environmentally beneficial production methods. Findings The results identify two segments of rice consumers: one group of consumers who are sensitive to price and the other group who are sensitive to environmental issues. The individual characteristics are reflected in the choices of production methods and in the willingness to pay for environmentally beneficial outcomes of those methods. Research limitations/implications Given the number of independent variables measured, the sample was relatively small, such that confirmatory statistical methods were inconclusive. However, the authors used multiple analytical tools that provide corroboration of the significant determinants of the utility functions for the two segments. Practical implications The results provide directions for production of rice at a national level, as well as practical implications for consumer-oriented communications. Social implications Results suggest that the emerging middle class of Vietnamese consumers are willing to pay more for rice that is produced using methods that are beneficial to the environment. Results also indicate challenges to provide sustainably-produced rice to poorer groups of consumers. Originality/value The study provides important context for consumer preferences within emerging economies. This also adds to a growing literature that uses the choice experiment method to estimate consumer valuation of the outcomes of various agricultural practices.

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Environmental Efficiency of Ecologically Engineered Rice Production in the Mekong Delta of Vietnam

Cited by 21 publications

References 0 publications

Demonstration of Ecological Engineering based Pest Management in Rice Oryza sativa L. through Farmers Participatory Approach

Demonstration of Ecological Engineering based Pest Management in Rice Oryza sativa L. through Farmers Participatory Approach

Technical Efficiency and Output Losses in Shrimp Farming: A Case in Mekong Delta, Vietnam

Urban Vietnamese consumers’ preferences for attributes of sustainably produced rice

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Environmental Efficiency of Ecologically Engineered Rice Production in the Mekong Delta of Vietnam

Cited by 21 publications

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​Demonstration of Ecological Engineering based Pest Management in Rice Oryza sativa L. through Farmers Participatory Approach

​Demonstration of Ecological Engineering based Pest Management in Rice Oryza sativa L. through Farmers Participatory Approach

Technical Efficiency and Output Losses in Shrimp Farming: A Case in Mekong Delta, Vietnam

Urban Vietnamese consumers’ preferences for attributes of sustainably produced rice

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Product

Resources

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Demonstration of Ecological Engineering based Pest Management in Rice Oryza sativa L. through Farmers Participatory Approach

Demonstration of Ecological Engineering based Pest Management in Rice Oryza sativa L. through Farmers Participatory Approach