A study on the productivity under the continuous maize cultivation in Sainyabuli Province, Laos I. Yield trend under continuous maize cultivation

Fujisao, Kazuhiko; Khanthavong, Phanthasin; Oudthachit, Saythong; Matsumoto, Naruo; Homma, Koki; Asai, Hidetoshi; Shiraiwa, Tatsuhiko

doi:10.1016/j.fcr.2017.12.016

Cited by 7 publications

(4 citation statements)

References 13 publications

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“…In the study site, we observed two patterns of land-use intensity with maize grown under a rotational system that involved a short 2 or 3 years fallow, while in most accessible areas, close to the feeder roads, farmers were cropping their plots almost continuously. Land degradation grew due to these shortening fallow periods, which in turn affected maize yields [45,46]. Farmers initially offset their productivity losses by expanding the cropped area to maintain the same level of production.…”

Section: Impacts Of the Maize Boom On Landscapes And Livelihoodsmentioning

confidence: 99%

“…Years of monocropping and focus on a single commodity had significantly reduced their economic activity portfolio, therefore affecting their capacity to recover from bad maize harvests using income from other agricultural activities (e.g., livestock, paddies, non-timber forest products). On-farm surveys combined with participatory and remote sensing mapping showed that forest and land degradation, i.e., fertility loss and weed infestation, associated with maize monocropping had reduced the performances of all cropping systems through significant yield decreases despite gradual increases in input use and production costs [35,45,46].…”

Section: Impacts Of the Maize Boom On Landscapes And Livelihoodsmentioning

confidence: 99%

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Rural Roads Are Paving the Way for Land-Use Intensification in the Uplands of Laos

Castella¹,

Phaipasith

2021

Land

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Road expansion has played a prominent role in the agrarian transition that marked the integration of swidden-based farming systems into the market economy in Southeast Asia. Rural roads deeply altered the landscape and livelihood structures by allowing the penetration of boom crops such as hybrid maize in remote territories. In this article, we investigate the impact of rural road developments on livelihoods in northern Laos through a longitudinal study conducted over a period of 15 years in a forest frontier. We studied adaptive management strategies of local stakeholders through the combination of individual surveys, focus group discussions, participatory mapping and remote-sensing approaches. The study revealed the short-term benefits of the maize feeder roads on poverty alleviation and rural development, but also the negative long-term effects on agroecosystem health and agricultural productivity related to unsustainable land use. Lessons learnt about the mechanisms of agricultural intensification helped understanding the constraints faced by external interventions promoting sustainable land management practices. When negotiated by local communities for their own interest, roads may provide livelihood-enhancing opportunities through access to external resources, rather than undermining them.

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Section: Impacts Of the Maize Boom On Landscapes And Livelihoodsmentioning

confidence: 99%

Section: Impacts Of the Maize Boom On Landscapes And Livelihoodsmentioning

confidence: 99%

Rural Roads Are Paving the Way for Land-Use Intensification in the Uplands of Laos

Castella¹,

Phaipasith

2021

Land

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“…In 2013, the average maize yield was 5.27 t ha −1 for Lao PDR, and 5.60 t ha −1 in Xayabury Province (Ministry of Agriculture and Forestry, Lao PDR, 2014). Fujisao et al (2018) reported that maize seed yield in 2014 and 2015 in Kenethao District was 1.1-6.0 t ha −1 . Maize seed yields in our surveyed fields were typical.…”

Section: Maize Seed Yield and Soil Chemical Properties Of Surveyed Maize Fieldsmentioning

confidence: 99%

NPK Removal from Maize Cultivation Fields in Kenethao and Paklai Districts, Xayabury Province, Lao PDR

Matsumoto

Oudthachid

Khanthavong

et al. 2020

JARQ

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And nutrients removed through maize crop harvest may lead to land degradation.Nutrients are removed from the soil at crop harvests. The application of fertilizer supplies nutrients to support crop growth and replenish soil nutrient stocks. Tan et al. ( 2005) estimated global soil NPK budgets for major crop production in 2000, and suggested that soil nutrient depletion can be attributed to insufficient nutrient inputs in many developing countries and in all of the least developed countries. Analyzing the nutrient balance in farmland is useful for understanding nutrient depletion in farmland and reveals the effects of nutrient management practices in cropping systems on soil nutrient status (e.g., Frissel 1978). When a field has a lot of nutrients in the soil with no or low fertilizer input, the amount of nutrient uptake by the crop is higher than the amount of nutrient input to the farmland; hence, the nutrient balance becomes negative (Haileslassie et al. 2006, He et al.

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“…In addition, the improved infrastructure in the province has enabled more efficient transport of the harvest and created jobs in the transport and logistics sector. In addition, the export of corn has also led to increased sales of farming equipment and consumables such as fertilizers, leading to more business opportunities in the farming sector [23][24][25][26][27][28][29]. All of these factors have had a positive impact on farmers' incomes and the local economy.…”

Section: Introductionmentioning

confidence: 99%

The Financial Impact of Maize Export to China for Farmers in Xiengkhuang, Laos

Patthavong,

2023

SAJSSE

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Aims: Corn has become an important cash crop in Laos, mainly grown in the northern mountainous areas and used for various industrial products as well as food. The corn value chain plays a key role in employment and poverty alleviation in the country's rural areas. Study Design: This study is based on both quantitative research method, with one study enabling in-depth interviews with key informants and conducted in Xiegkhouang province. Targeted spot checks were used to select districts based on maize cultivation. Random sampling was conducted to obtain household surveys that have benefited from exporting corn to China, and each group received 12 respondents from two districts, for a total of 120. Methodology: This study uses both primary and secondary data. Primary data are obtained from the field in a number of ways, namely (i) by direct observation; (ii) in-depth interviews with key informants; and (iii) focus group discussion with local stakeholders.Descriptive statistical package and gross margin analyzes were used to determine the profitability levels of corn farmers and corn traders in the study area. Results: The assessment results showed that corn exports to China had a positive and significant effect on farmers' incomes in Xiegkhouang Province. The average increase in the net income of the farmers surveyed was significant. The study also found that corn exports to China had a positive impact on provincial employment opportunities and additional job opportunities. Conclusion: The study found that while exports to China increased farmers' income, they also increased input and labor costs, and therefore the macroeconomic impact was not as positive as initially expected to help farmers increase their income and benefit from corn exports.

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A study on the productivity under the continuous maize cultivation in Sainyabuli Province, Laos I. Yield trend under continuous maize cultivation

Cited by 7 publications

References 13 publications

Rural Roads Are Paving the Way for Land-Use Intensification in the Uplands of Laos

Rural Roads Are Paving the Way for Land-Use Intensification in the Uplands of Laos

NPK Removal from Maize Cultivation Fields in Kenethao and Paklai Districts, Xayabury Province, Lao PDR

The Financial Impact of Maize Export to China for Farmers in Xiengkhuang, Laos

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