Régénération de l'épicéa et pédologie

Duchaufour, Philippe

doi:10.4267/2042/26875

Cited by 8 publications

(4 citation statements)

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“…The growth of tree legumes is not homogeneous in the experimental farms of Mbankomo locality because the growth of these legumes was a function of the soil, the volume of rainfall, and also the state of sunshine. This result shows a difference from the work done by [27] who observed a homogeneous growth using biological fertilizers. Furthermore, for the germination and growth of Calliandra and Senna, no fertilizer was applied to facilitate or accelerate their growth.…”

Section: Discussioncontrasting

confidence: 99%

Contribution of Tree Legumes in the Production Dynamics of Yellow Yam (Dioscorea cayenensis Lam) in the South Cameroon Plateau

Djakou¹

2023

IJEAB

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The overexploitation of agricultural soils as a result of the increased need for food by local populations is leading to serious dysfunctions in land restoration. These dysfunctions, aggravated by climate change, require the implementation of ecological engineering strategies to rehabilitate the soil. The soils of the South Cameroonian plateau suffer significant degradation in terms of loss of fertilizing elements due to extensive agricultural practices, which limits agricultural production. This work showed how tree legumes contribute to improving the yield of yellow yam (Dioscorea cayenensis) in the South Cameroonian plateau, to ultimately support the production of agroecosystems in this environment. Within the framework of this study, an experimental set-up was designed to measure the performance of tree legumes in the field. The experimental set-up is a randomized complete block trial with three treatments and three replications on 3000 m2. The control plot without shrubs, the plot with Calliandra, and the plot with Senna. This trial was carried out in the district of Mbankomo, Mefou, and Akono Department, Central Region. After monitoring the experiment, it was found that Senna spectabilis produced more nutrients than Calliandra calothyrsus. Thus, each Senna shrub produced 1.54 kg of litter in the first year and 2.04 kg in the second year for a quantity of nitrogen of 192.76 kg/ha and 260 kg/ha respectively in the first and second year. Each Calliandra shrub produced 1.46 kg and 1.87 kg of litter for a nutrient amount of 183 kg/ha and 236.81 kg/ha of nitrogen during the two years of the experiment. The combination of tree legumes and field crops increased yam yields by a factor of 2 or 3 compared to traditional agriculture. The growth rate of the yam is accelerated as well as its vegetative cycle, which is reduced from 7.5 months to 6 months as a result of the increase in soil organic matter through the shrub legume litter. Agroforestry practices could have a positive impact on soil characteristics and microbial communities, resulting in enhanced soil fertility and long-term sustainability of agricultural production. According to the results obtained, the insertion of tree legumes in agrosystems is a more efficient and less costly way to gradually and sustainably increase nitrogen availability and soil fertility.

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Section: Discussioncontrasting

confidence: 99%

Contribution of Tree Legumes in the Production Dynamics of Yellow Yam (Dioscorea cayenensis Lam) in the South Cameroon Plateau

Djakou¹

2023

IJEAB

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“…When silver fir is associated with beech, the dominated firs represent up to 42% of trees (versus a maximum of 22% in the fir and spruce stands). The deep roots of young beech (Riedacker, 1981) may permit other plants to compete for soil nutrients and establish new individuals easier than the shallowrooting system of spruce (Duchaufour, 1953). Nevertheless, to ascertain the role of beech on the survival and growth of fir in a browsing context, a more detailed study of understory characteristics is necessary, encompassing all broadleaved species of the silver fir-beech forest.…”

Section: Lessons From the Pastmentioning

confidence: 98%

Is browsing the major factor of silver fir decline in the Vosges Mountains of France?

Heuzé¹,

Schnitzler²,

Klein

2005

Forest Ecology and Management

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“…Mais les racines de l'Epicéa, réputées pourtant superficielles, s'enfonceraient assez profondément dans les sols meubles et aérés (DUCHAUFOUR, 1953 ;KOSTLER, 1962 ;LEUBUNGUT et ai. 1963) et si elles ne trouvent pas suffisamment d'éléments nutritifs dans l'horizon humifère (KERN et al 1961).…”

Section: ) Les Essencesunclassified

Importance des propriétés du sol pour l'enracinement dePicea excelsaet dePinus sylvestris

Levy¹

1968

Ann. Sci. forest.

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Régénération de l'épicéa et pédologie

Cited by 8 publications

References 0 publications

Contribution of Tree Legumes in the Production Dynamics of Yellow Yam (Dioscorea cayenensis Lam) in the South Cameroon Plateau

Contribution of Tree Legumes in the Production Dynamics of Yellow Yam (Dioscorea cayenensis Lam) in the South Cameroon Plateau

Is browsing the major factor of silver fir decline in the Vosges Mountains of France?

Importance des propriétés du sol pour l'enracinement dePicea excelsaet dePinus sylvestris

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