Promouvoir l’agroforesterie à base de palmiers à huile : un atout pour la durabilité de la filière

Masure, Alix; Martin, Pierre; Lacan, Xavier; Rafflegeau, Sylvain

doi:10.1051/cagri/2022010

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…Oil palm plantations are more often located in remote areas, where diversifying the production systems and establishing a market for new crops or NTFP (Non-Timber Forest Products) can be challenging for both estate companies and smallholders. Previous studies seeking to demonstrate the economic benefits of oil palm intercropping often took either a qualitative or a quantitative approach associated with a number of assumptions, including production yields and prices (Masure et al, 2022). In such studies, oil palm productivity is assumed to follow a simplified pattern, in which the buying process for FFB is constant.…”

Section: From Plantations To Agroforestsmentioning

confidence: 99%

Oil palm plantation systems are at a crossroads

Rival,

Chalil

2023

OCL

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The future of most tropical sectors is clouded by growing constraints linked to, among many other parameters, climate change, price volatility and labour scarcity. Perpetuating agricultural systems inherited from the colonial era (a time of abundant arable land, protected markets, and cheap and disciplined labour) will not be enough to prepare these sectors in facing immediate crucial challenges unless substantial structural transformations are made. Implementing a successful agroecological transition in a 70-billion USD sector, covering 25 million ha worldwide, calls for drastic changes in mind-sets and practices. The key issue is no longer simply to increase productivity, but to foster innovations designed to support endangered tropical biodiversity, while providing a decent living for shrinking agricultural communities in the Global South. Agroforestry practices have a role to play in providing substantial climate change mitigation with an impact comparable to other climate-focused solutions, such as reforestation. The expected contribution of oil palm-based agroforestry relies on agro-environmental services, as basic agricultural functions such as soil preservation, pollination, or pest control can be ensured by living organisms inside and around the plantation. Diversified systems are able to achieve both economic and environmental gains, as they use land more efficiently than monocultures. Building on regenerative agriculture, new plantation designs are emerging and deserve to be thoroughly assessed to establish evidence-based advocacy for change.

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Section: From Plantations To Agroforestsmentioning

confidence: 99%

Oil palm plantation systems are at a crossroads

Rival,

Chalil

2023

OCL

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“…2017; Rodenburg et al . 2022; Masure et al . 2022), the diversity of rice response to fluctuations in radiation as well as low light remains unexploited.…”

Section: Introductionmentioning

confidence: 99%

“…Despite the growing interest in rice-based agroforestry systems (Wangpakapattanawong et al 2017;Rodenburg et al 2022;Masure et al 2022), the diversity of rice response to fluctuations in radiation as well as low light remains unexploited. Up to now, varietal improvement programs in rice have focused on the selection of productive materials in full sun conditions.…”

Section: Introductionmentioning

confidence: 99%

Combining modelling and experimental approaches to assess the feasibility of developing rice-oil palm agroforestry system

Perez

Vezy

Bordon

et al. 2022

Preprint

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Climatic hazards affecting the main rice producing regions of Indonesia increase the risk of annual production loss and encourage the development of innovative strategies to maintain stable production. Conversion of oil palm monocultures to rice-based intercropping systems is a strategy to be considered, but relies on the existence of suitable planting management that optimizes both palm productivity while providing enough light for undergrowth rice varieties tolerant to shady conditions. This paper proposes to couple a model of light interception on virtual canopies with indoor experiments to evaluate the feasibility of developing rice-oil palm agroforestry systems. We first selected a planting design that optimized the transmitted light available for rice using a functional-structural plant model (FSPM) of oil palm. Secondly, we reproduced the light regime simulated with specific changes in the intensity and the daily fluctuation of light in controlled conditions. Three light treatments were designed to test independently the effect of daily light quantity and the effect of diurnal fluctuation on contrasted rice subpopulations. Light quantity was the main factor driving changes in plant morphology and architecture, while light fluctuation only appeared to explain variations in yield components and phenology. This study highlighted the importance of light fluctuation in the grain filling process and resource reallocation. The conservation of relative change among varieties between treatments suggests that varietal responses to low light are likely to be heritable, and that varietal screening under full light can provide clue on varietal behavior under low light. However, the identification of specific traits such as a limited expansion of leaf area and a conservation of leaf senescence under shade and high light fluctuation paves the way for selecting varieties dedicated to agroforestry systems. Further investigations including light quality and larger genotypic population to screen are discussed.

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Unravelling sustainable intensification in oil-palm agroforestry on the Adja plateau, Benin

2023

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Pathways for mediating the competing land-use claims of landowners and tenants in oil palm agroforestry systems in Benin’s Adja plateau do not consider the diversity of land-management practices. Therefore, we analysed how soil properties and maize yields in those systems are affected by two contrasting categories of land-management practices and fertilisation options. We used a synchronic approach to split these practices and options into two successive steps. In Step 1, referred to as cropped fields, tenants continuously intercrop maize among scattered oil palms. In Step 2, referred to as fallows, the land is densely planted with oil palm, without intercropping. Twelve farmers’ fields were selected for this study. Eight represent cropping fields, and four are 15-year-old oil-palm fallows. Cropped field fertilisation treatments consisted of farmyard manure (at 15 and 30 t ha−1) and mineral fertiliser (150 kg ha−1 of N14P18K18S6B1 + 50 kg ha−1 of urea). We found no significant differences between the N contents and C:N ratios of the two types of fields. However, the numbers and masses of earthworm casts were higher in cropped fields treated with farmyard manure than with mineral fertiliser. Farmyard manure (15 and 30 t ha−1 rates) also produced significantly higher maize yields (respectively, 2.5 and 3.2 t ha−1) than the mineral fertiliser alone (1.9 t of maize per ha). We conclude by discussing N, K and P storage in soil, and recommended use of farmyard manure as an agroforestry practice that will benefit landowners and tenants alike on the Adja plateau.

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Promouvoir l’agroforesterie à base de palmiers à huile : un atout pour la durabilité de la filière

Cited by 5 publications

References 23 publications

Oil palm plantation systems are at a crossroads

Oil palm plantation systems are at a crossroads

Combining modelling and experimental approaches to assess the feasibility of developing rice-oil palm agroforestry system

Unravelling sustainable intensification in oil-palm agroforestry on the Adja plateau, Benin

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