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Cultivation of black truffle to promote reforestation and land-use stability / C. Colinas ; J.A. Bonet ; C.R Fischer in Agronomy for Sustainable Development *, Vol.26, n°1 ([01/01/2006])

Public ISBD [article]  inAgronomy for Sustainable Development * > Vol.26, n°1 [01/01/2006] . - p. 69-76 Titre : Cultivation of black truffle to promote reforestation and land-use stability Type de document : Article Auteurs : C. Colinas ; J.A. Bonet ; C.R Fischer Année de publication : 2006 Article en page(s) : p. 69-76 Langues : Français (fre) Catégories : [Motbis 2025] champignon [Motbis 2025] eau [Motbis 2025] pénurie [Motbis 2025] technique culturale Note de contenu : Cultivation of black truffle, Tuber melanosporum Vitt., has become an important agricultural alternative in rural Mediterranean regions due to its success in relatively harsh conditions, its high market value and diminishing production in natural areas. In addition, truffle cultivation requires relatively low agricultural inputs, promotes reforestation and economic restoration of rural lands and land-use stability. However, there remain major issues regarding the management practices to ensure successful black truffle production. We therefore conducted an experiment to evaluate 3 levels of irrigation based on monthly water deficit and the effects of currently applied weed control systems and fertilization. Treatment effects were evaluated by examining the mycorrhizal status of out-planted 1-yr-old Quercus ilex L. seedlings and seedling growth parameters after 18 months in 3 distinct experimental truffle plantations located in the foothills of the Spanish Pyrenees. We found that replacing one-half of the water deficit of the driest month (moderate irrigation) promoted the proliferation of T. melanosporum mycorrhizae, while high irrigation reduced fine root production and truffle mycorrhizae. Glyphosate weed control improved seedling survival by up to 16% over control seedlings without jeopardizing truffle mycorrhizae in the first year. Fertilization did not improve seedling growth or influence its mycorrhizal status. We describe the persistent relationship between this ectomycorrhizal fungus and Q. ilex by quantifying old and new mycorrhizae and we discuss the ecological implications of the symbiosis. [article] Cultivation of black truffle to promote reforestation and land-use stability [Article] / C. Colinas ; J.A. Bonet ; C.R Fischer . - 2006 . - p. 69-76. Langues : Français (fre) in Agronomy for Sustainable Development * > Vol.26, n°1 [01/01/2006] . - p. 69-76 Catégories : [Motbis 2025] champignon [Motbis 2025] eau [Motbis 2025] pénurie [Motbis 2025] technique culturale Note de contenu : Cultivation of black truffle, Tuber melanosporum Vitt., has become an important agricultural alternative in rural Mediterranean regions due to its success in relatively harsh conditions, its high market value and diminishing production in natural areas. In addition, truffle cultivation requires relatively low agricultural inputs, promotes reforestation and economic restoration of rural lands and land-use stability. However, there remain major issues regarding the management practices to ensure successful black truffle production. We therefore conducted an experiment to evaluate 3 levels of irrigation based on monthly water deficit and the effects of currently applied weed control systems and fertilization. Treatment effects were evaluated by examining the mycorrhizal status of out-planted 1-yr-old Quercus ilex L. seedlings and seedling growth parameters after 18 months in 3 distinct experimental truffle plantations located in the foothills of the Spanish Pyrenees. We found that replacing one-half of the water deficit of the driest month (moderate irrigation) promoted the proliferation of T. melanosporum mycorrhizae, while high irrigation reduced fine root production and truffle mycorrhizae. Glyphosate weed control improved seedling survival by up to 16% over control seedlings without jeopardizing truffle mycorrhizae in the first year. Fertilization did not improve seedling growth or influence its mycorrhizal status. We describe the persistent relationship between this ectomycorrhizal fungus and Q. ilex by quantifying old and new mycorrhizae and we discuss the ecological implications of the symbiosis.

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REV-00000178	Vol.26, n°1 - 01/01/2006	Revue	Archives sur place	Documentaires	Disponible

Olive wastewater as an ecological fertiliser / Fathi Aloui ; Ali Mekki ; Sami Sayadi ; Abdelhafidh Dhouib in Agronomy for Sustainable Development *, Vol.26, n°1 ([01/01/2006])

Public ISBD [article]  inAgronomy for Sustainable Development * > Vol.26, n°1 [01/01/2006] . - p. 61-67 Titre : Olive wastewater as an ecological fertiliser Type de document : Article Auteurs : Fathi Aloui ; Ali Mekki ; Sami Sayadi ; Abdelhafidh Dhouib Année de publication : 2006 Article en page(s) : p. 61-67 Langues : Français (fre) Catégories : [Motbis 2025] fertilisation [Motbis 2025] fruit à noyau [Motbis 2025] récolte [Motbis 2025] sol [Motbis 2025] traitement des eaux usées Note de contenu : The effects of untreated and treated olive mill wastewater on seed germination, plant growth and soil fertility were studied. Tomato (Lycopersicon esculentum), chickpea (Cicer arietinum), bean (Vicia faba), wheat (Triticum durum) and barley (Hordeum vulgare) were tested for the germination index and growth in soil irrigated by olive mill wastewater. Lepidium sativum was used as the standard species for the germination index and phytotoxicity evaluation. We measured soil properties, crop growth, herbage biomass, leaf elongation and productivity. The results show beneficial effects using treated olive mill wastewater. The treated plants showed an improvement in seed biomass, spike number, plant growth, and a similar or even better dry productivity than plants irrigated with water, e.g. Hordeum vulgare 102%, Triticum durum 105%, Cicer arietinum 101% and Vicia faba 102%. An increase in the germination index from 100% to 115% was observed. Soil organic matter, respiration and enzymatic activities were also enhanced by treated olive mill wastewater ferti-irrigation. However, even diluted 10 times, untreated olive mill wastewater inhibited the species germination, e.g. 1.2% for Hordeum vulgare and 40% for Cicer arietinum and Vicia faba, and plant growth (16–42.5%). Leaf necrosis and low productivity were observed in crops ferti-irrigated by untreated olive mill wastewater. [article] Olive wastewater as an ecological fertiliser [Article] / Fathi Aloui ; Ali Mekki ; Sami Sayadi ; Abdelhafidh Dhouib . - 2006 . - p. 61-67. Langues : Français (fre) in Agronomy for Sustainable Development * > Vol.26, n°1 [01/01/2006] . - p. 61-67 Catégories : [Motbis 2025] fertilisation [Motbis 2025] fruit à noyau [Motbis 2025] récolte [Motbis 2025] sol [Motbis 2025] traitement des eaux usées Note de contenu : The effects of untreated and treated olive mill wastewater on seed germination, plant growth and soil fertility were studied. Tomato (Lycopersicon esculentum), chickpea (Cicer arietinum), bean (Vicia faba), wheat (Triticum durum) and barley (Hordeum vulgare) were tested for the germination index and growth in soil irrigated by olive mill wastewater. Lepidium sativum was used as the standard species for the germination index and phytotoxicity evaluation. We measured soil properties, crop growth, herbage biomass, leaf elongation and productivity. The results show beneficial effects using treated olive mill wastewater. The treated plants showed an improvement in seed biomass, spike number, plant growth, and a similar or even better dry productivity than plants irrigated with water, e.g. Hordeum vulgare 102%, Triticum durum 105%, Cicer arietinum 101% and Vicia faba 102%. An increase in the germination index from 100% to 115% was observed. Soil organic matter, respiration and enzymatic activities were also enhanced by treated olive mill wastewater ferti-irrigation. However, even diluted 10 times, untreated olive mill wastewater inhibited the species germination, e.g. 1.2% for Hordeum vulgare and 40% for Cicer arietinum and Vicia faba, and plant growth (16–42.5%). Leaf necrosis and low productivity were observed in crops ferti-irrigated by untreated olive mill wastewater.

Exemplaires(1)

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REV-00000178	Vol.26, n°1 - 01/01/2006	Revue	Archives sur place	Documentaires	Disponible

Re-thinking the conservation of carbon, water and soil: a different perspective / Thomas Shaxson in Agronomy for Sustainable Development *, Vol.26, n°1 ([01/01/2006])

Public ISBD [article]  inAgronomy for Sustainable Development * > Vol.26, n°1 [01/01/2006] . - p. 9-19 Titre : Re-thinking the conservation of carbon, water and soil: a different perspective Type de document : Article Auteurs : Thomas Shaxson Année de publication : 2006 Article en page(s) : p. 9-19 Langues : Anglais (eng) Catégories : [Motbis 2025] carbone [Motbis 2025] perméabilité Note de contenu : Sustaining soil productivity requires continuing actions of soil organisms on organic materials for optimizing of soil porosity and of movements of roots, water and gases in the root-zone. Soil is more quickly formed and self-renewed from the top downwards than only by slow additions from the bottom upwards. Loss of porosity diminishes soil's infiltration capacity and water-holding potential. Factors that provide insufficient organic substrates for soil organisms and that unduly accelerate oxidation of soil organic matter hinder the self-recuperation of soil and facilitate 'Stage-1' loss of carbon from within soil aggregates. They predispose the soil to lose rapidly even more carbon, in particulate form, through 'Stage-2' losses during consequent processes of runoff and erosion. Forms of land use and management are advocated that favor the functioning of soil-inhabiting organisms, including plants, such that carbon's capture in photosynthesis is increased, its usefulness in the soil as a rooting medium is prolonged, and its subsequent immobilization in the process of sequestration ameliorates the rate of increase in carbon dioxide concentration in the global atmosphere. [article] Re-thinking the conservation of carbon, water and soil: a different perspective [Article] / Thomas Shaxson . - 2006 . - p. 9-19. Langues : Anglais (eng) in Agronomy for Sustainable Development * > Vol.26, n°1 [01/01/2006] . - p. 9-19 Catégories : [Motbis 2025] carbone [Motbis 2025] perméabilité Note de contenu : Sustaining soil productivity requires continuing actions of soil organisms on organic materials for optimizing of soil porosity and of movements of roots, water and gases in the root-zone. Soil is more quickly formed and self-renewed from the top downwards than only by slow additions from the bottom upwards. Loss of porosity diminishes soil's infiltration capacity and water-holding potential. Factors that provide insufficient organic substrates for soil organisms and that unduly accelerate oxidation of soil organic matter hinder the self-recuperation of soil and facilitate 'Stage-1' loss of carbon from within soil aggregates. They predispose the soil to lose rapidly even more carbon, in particulate form, through 'Stage-2' losses during consequent processes of runoff and erosion. Forms of land use and management are advocated that favor the functioning of soil-inhabiting organisms, including plants, such that carbon's capture in photosynthesis is increased, its usefulness in the soil as a rooting medium is prolonged, and its subsequent immobilization in the process of sequestration ameliorates the rate of increase in carbon dioxide concentration in the global atmosphere.

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
REV-00000178	Vol.26, n°1 - 01/01/2006	Revue	Archives sur place	Documentaires	Disponible