Effets de l'apport de bois raméal sur la plante et le sol: une revue des résultats expérimentaux

Barthès, Bernard; Manlay, Raphaël J.; Porte, Olivier

doi:10.1684/agr.2010.0412

Cited by 15 publications

(17 citation statements)

References 18 publications

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“…Under the high rainfall of LR2018, the soil water contents under 0, 3 and 5 t.ha -1 mulch were not significantly different at Zazounmè while significant difference was found in LR2019 where low rainfall were recorded. Our results are consistent with those of many researchers (Mupangwa et al, 2007;Barthès et al, 2010;Badou et al, 2013, Uwizeyimana et al, 2018Akplo et al, 2019a). Over the two targeted cropping seasons, the highest water contents of soil are associated with a great maize growth and yield.…”

Section: Discussionsupporting

confidence: 94%

Influence of soil conservation practices on soil moisture and maize crop (Zea mays L.) productivity in Centre Benin

Akplo¹,

Alladassi²,

Martinien³

et al. 2020

Afr. J. Plant Sci.

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Soil quality constitutes a major factor for crops growth. This study aimed at determining the sustainable soil conservation practices that would increase maize growth as well as production and improve the soil moisture. Two experimental sites were chosen: Dan localized on Acrisol and Zazounmè localized on ferralsol. Two cropping seasons were investigated: the long rain seasons of 2018 and 2019. The experimental design was split-plot with four replications. The main factor was tillage with three modalities: no-tillage (NT); ridging parallel to the slope (PR); Isohypse ridging (IR) and the second factor was mulching with four amounts: 0, 3, 5 and 7 t.ha -1 . Tillage, mulch amount and their interaction significantly influenced the soil moisture, maize growth and yield over the two investigated cropping seasons at both sites whereby the highest values were obtained under IR for tillage, 7 t.ha -1 (for mulch amount) and IR7M (for the interaction tillage x mulch amount). Overall, IR significantly increased the maize growth speed by 8% at Dan and by 16% at Za-zounmè; the maize grain yield by 33% at Dan and by 30% at Za-zounmè and the soil water content by 24% at Dan and 20% at Za-zounmè, in comparison with No-Tillage. An increasing effect of mulch amount was also observed. As far as mulching is concerned, the highest values (in average of LR2018 and LR2019) of growth speed (3.77 cm.day -1 at Dan and 4.08 cm.day -1 at Za-zounmè); grain yield (3003.03 at Dan and 3471.09 kg.ha -1 at Za-zounmè) and soil water content (26.89 mm at Dan and 20.44 mm at Za-zounmè) were observed. This suggests that isohypse ridging associated with an appropriate amount of organic mulch could be an option to mitigate dry spells and drought and improve local farmers' income in the area of low rainfall in sub-Sahara Africa.

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Section: Discussionsupporting

confidence: 94%

Influence of soil conservation practices on soil moisture and maize crop (Zea mays L.) productivity in Centre Benin

Akplo¹,

Alladassi²,

Martinien³

et al. 2020

Afr. J. Plant Sci.

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“…When this experimental set‐up shifted from crop residue application to higher doses of RW, we observed enhanced termite activity, along with enhanced crop productivity, an element often described in SWA (Sileshi et al, ). Whereas termites increase crop growth conditions via enhanced soil physical structure (e.g., increased porosity leading to enhanced water infiltration, upper soil fertilization by nutrient‐rich casts), an additional effect of RW could be attributed to organic amendment effects on water dynamics, more likely for high RW application (Barthès, Manlay, & Porte, ): higher infiltration and lower evaporation (especially when mulched) and higher soil water content retention (especially when buried). Interpretation of our data may, however, be limited by lack of soil water content data.…”

Section: Discussionmentioning

confidence: 99%

“…In dryland agroecosystems, trees, and especially shrubs, may supply renewable quantities of branches and leaves useable to amend degraded soils (Breton, Crosaz, & Rey, ; Hueso‐González, Martínez‐Murillo, & Ruiz‐Sinoga, ; Lahmar & Yacouba, ). Several studies on the use of such soil amendments, known as ramial chipped wood (in French, bois raméal fragmenté ), were conducted in temperate regions, and they showed potential to restore soil functions, particularly of soil fungi and microbial communities (Barthès, Manlay, & Porte, ; Breton, Crosaz, & Rey, ; Breton, Rey, & Crosaz, ). To what extent can soil productivity be restored in this way, how long will it take to rehabilitate severely degraded soils in a semiarid tropical environment, and at what costs for farming families are questions that remain poorly explored in the context of SWA.…”

Section: Introductionmentioning

confidence: 99%

Ramial wood amendments (Piliostigma reticulatum) mitigate degradation of tropical soils but do not replenish nutrient exports

et al. 2018

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Restoring degraded soils to support food production is a major challenge for West African smallholders who have developed local innovations to counter further degradation. The objective of this study was to evaluate a local farmer's technique that uses ramial wood (RW) as soil amendment (Piliostigma reticulatum shrub). Three treatments were applied in an experimental plot in Burkina Faso: control (no amendment), low RW (3 Mg fresh mass·ha−1·yr−1), and high RW (12 Mg fresh mass·ha−1·yr−1). RW was chipped to <5‐cm pieces and either buried or mulched. Topsoil carbon (C), nitrogen (N), and phosphorus (P) in control and low‐RW treatments declined after 7 years of continuous sorghum cultivation. Use of high‐RW amendment stabilized soil C content while N and P declined, thus not replenishing nutrient exports. Net contribution to soil C in the layer measuring 0–15 cm was 15% of the applied C in the high‐RW amendments. Although biomass and grain yields were higher in high‐RW treatments, crop productivity declined throughout the experiment for all treatments. Termite casts on RW treatments evidenced the potential role of wood‐foraging termites in diluting the impact of RW on soil fertility build‐up and soil water content. We conclude that mitigating soil degradation under semiarid conditions in Burkina Faso would require large amounts of woody amendments, particularly if the level of termite activity is high. Additional nutrient sources would be needed to compensate for removal in exported products so that biomass and grain production can be stabilized or increased.

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“…; Jackson, Peltzer & Wardle ). Further, it has been shown that amendment of soils by woods from angiosperms in temperate climate has beneficial nutritional effects relative to woods from gymnosperms, as a consequence of their effects on soil N availability (Barthès, Manlay & Porte ). While our study did not compare the effects of charcoal and wood amendments, our results extend current knowledge by showing distinct differences in the ecological impacts of charcoals produced from woods from these two groups of trees.…”

Section: Discussionmentioning

confidence: 99%

Stimulation of boreal tree seedling growth by wood‐derived charcoal: effects of charcoal properties, seedling species and soil fertility

et al. 2014

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Summary 1.Fire is a major disturbance in many ecosystems world-wide including the boreal forest, and significant quantities of charcoal can be input to the soil from fire. Some recent studies have provided evidence that wood-derived charcoal produced by fire can significantly stimulate plant growth. However, the mechanisms by which charcoal affects plant growth are poorly understood, and little is known about how charcoal effects on plant growth are influenced by charcoal type, soil type and plant species. 2. Seedlings from four common boreal tree species, two evergreen gymnosperms and two deciduous angiosperms, were grown in each of two soils of contrasting nutrient availability amended with charcoal with each of nine charcoal types (each produced from wood from a different plant species) in a greenhouse experiment. We also measured several functional traits for each of the charcoal types, as well as of the wood used to prepare the charcoal. 3. Charcoal addition had either positive or neutral effects on seedling growth, with great variability among charcoal types. The charcoal types that had the strongest positive effect were those that had the greatest concentrations of phosphate and total phosphorus and, in some cases, were derived from woods that had the highest total phosphorus concentration. Addition of charcoal on average had a stronger positive effect on plant growth on soil with the lowest levels of phosphate and total phosphorus. 4. Generally, charcoal derived from angiosperms stimulated seedling growth more than charcoal from gymnosperms. Further, angiosperm seedlings were on average stimulated more by charcoal addition than were gymnosperm seedlings. These results indicate that charcoal produced by fire could contribute to the initial dominance of angiosperm trees in post-fire succession and suggest a possible feedback whereby charcoal from angiosperm tree species favours growth of angiosperm seedlings. 5. This study highlights a new means by which functional trait variation among tree species could potentially exert 'after-life' effects in forested ecosystems through influencing traits (and notably phosphate concentrations) of the charcoal that they produce following wildfire, with potentially important consequences for plant growth and community and ecosystem properties during post-fire succession.

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Effets de l'apport de bois raméal sur la plante et le sol: une revue des résultats expérimentaux

Cited by 15 publications

References 18 publications

Influence of soil conservation practices on soil moisture and maize crop (Zea mays L.) productivity in Centre Benin

Influence of soil conservation practices on soil moisture and maize crop (Zea mays L.) productivity in Centre Benin

Ramial wood amendments (Piliostigma reticulatum) mitigate degradation of tropical soils but do not replenish nutrient exports

Stimulation of boreal tree seedling growth by wood‐derived charcoal: effects of charcoal properties, seedling species and soil fertility

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