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Documents disponibles dans cette catégorie (163)
Article
One important issue faced by wheat producers is temporal and spatial yield variation management at a within-field scale. Vegetation indices derived from remote-sensing platforms, such as Landsat, can provide vital information characterising this[...]Article
R. Duflot ; M. San-Cristobal ; E. Andrieu ; J.-P. Choisis ; D. Esquerré ; S. Ladet ; A. Ouin ; J. Rivers-Moore ; D. Sheeren ; C. Sirami ; M. Fauvel ; A. Vialatte |Farming intensity and landscape heterogeneity influence agrobiodiversity and associated ecological functions. The relative contributions of these agroecosystem components to agricultural production remain unclear because of inter-relations and w[...]Article
A.C. Sánchez ; H.N. Kamau ; F. Grazioli ; S.K. Jones |Diversified farming systems are promoted as a pathway to more sustainable agricultural production. Yet widescale adoption may be slow because of uncertainty about the viability of farmer livelihoods on diversified farms and entrenched perception[...]Article
Climate change is impacting on the agricultural sector in several ways, and the effects on yields are generally among the most observable ones. Open fields crops, such as cereals, are very vulnerable to climate change. We study the historical da[...]Article
F. Chemak ; H. Mazhoud ; Z. Rached ; A. Gara ; R. Rahmeni ; H. Ghannem |In Tunisia, the development of the irrigated cereal sector plays a key role in the mitigation of the fluctuation of the rainfed production and to ensure a minimum of production. However, the archived yields remain under the expected potential pe[...]Article
N. Guiomar ; S. Godinho ; M. Rivera ; T. Pinto-Correia ; R. Machado ; M. Czekaj ; E. Tyran ; J. Puchala |Recent findings on the contribution of smallholders to global food production and security challenge the values used in several reports of international organizations. The skewed distribution of the number of farms and the agricultural area by f[...]Article
T. Kourat ; D. Smadhi ; B. Mouhouche ; N. Gourari ; M.G.M. Amin ; C.R. Bryant |Maintaining sustainability in rainfed wheat production under changing climate is a grave concern for food security in Algeria. This study aims to assess the impact of future climate change on rainfed wheat yield in the semiarid Eastern High Plai[...]Article
This paper aims to analyse the technical efficiency (TE) of dairy farms and find its determinants. To accomplish this problem, the Stochastic Frontier Analysis was applied. The data were obtained from the Farm Accountancy Data Network database f[...]Article
Agricultural systems are constantly stressed due to higher demands for products. Consequently, water resources consumed on irrigation are increased. In combination with the climatic change, those are major obstacles to maintaining sustainable de[...]Article
A. Attia ; A. Attia ; S. El-Hendawy ; N. Al-Suhaibani ; M.U. Tahir ; M. Mubushar ; M. dos Santos Vianna ; H. Ullah ; E. Mansour ; A. Datta |Crop models may potentially explore alternative ways to improve agroecosystem resilience in arid regions of Middle East and North Africa. Mapping the outputs behavior as a function of the inputs and quantifying the uncertainty contribution of in[...]Article
Using several energy returns on investment indicators (multi-EROI), this article analyses the socioecological transition of an agroecosystem in the western Mediterranean on the island of Mallorca (Spain) over a period of 150 years which saw a ch[...]Article
The impact of climate change on wheat and barley yields in two regions of the Iberian Peninsula is here examined. Regression models are developed by using EURO-CORDEX regional climate model (RCM) simulations, forced by ERA-Interim, with monthly [...]Article
A. Tomaz ; J.F. Palma ; T. Ramos ; M.N. Costa ; E. Rosa ; M. Santos ; L. Boteta ; J. Dôres ; M. Patanita |The evaluation of the role of different agronomic strategies in achieving sustainable wheat yields under variable Mediterranean climate conditions may involve the use of resource-use indicators that combine productivity and environmental impact.[...]Article
B. Dhehibi ; U. Rudiger ; H.P. Moyo ; M.Z. Dhraief |The objective of this research study was to assess the sources of information on two improved agricultural and livestock technologies (barley variety and feed blocks) as well as the efficacy of numerous agricultural technology diffusion means in[...]Article
Wheat yield potentials under rainfed Mediterranean conditions have been long limited by late-in-season occurrence of enhanced water deficits and high temperatures, coinciding with sensitive reproductive stages. Present study aims to quantify and[...]Article
Les productions agricoles sont soumises à des aléas portant sur les prix des récoltes, sur leur rendement ou encore sur leur état sanitaire. Si la gestion du risque de prix repose largement sur lutilisation dinstruments financiers adaptés ou d[...]Article
Closing the attainable yield and gross margin gaps are important for improving food security and reducing poverty in developing world. Closing these gaps requires quantifying them, identifying major factors constraining the attainable yield and [...]Article
D. Cammarano ; D. Cammarano ; D. Ronga ; I. Di Mola ; M. Mori ; M. Parisi |Tomato (Solanum lycopersicum L.) is a globally important vegetable recognized for its positive health benefits. As most of the vegetable production, tomato require significant amount of agronomic inputs. However, recent shifts in climate pattern[...]Article
F. Orlando ; S. Alali ; V. Vaglia ; E. Pagliarino ; J. Bacenetti ; S. Bocchi |Rice is the third grown crop worldwide and responsible of significant environmental impacts. Nevertheless, there is a lack of knowledge concerning the organic rice performance and management, probably due to the limits encountered by the reduct[...]Article
Most crop models were developed and tested in homogeneous field conditions. However, these crop models are increasingly applied beyond the field scale for larger regions. Inadequate representation of the spatial variability at a larger scale int[...]Article
H. Bahri ; M. Annabi ; H. Cheikh Mhamed ; A. Frija |Several circulation models are forecasting climate changes in the Mediterranean region. Accordingly, it is expected that water scarcity in the region will be higher with drastic shifts of hydrological and erosive watershed responses. In Tunisia,[...]Article
M.M. Giuliani ; G. Gatta ; G. Cappelli ; A. Gagliardi ; M. Donatelli ; D Fanchini ; D. De Nart ; G. Mongiano ; S. Bregaglio |The main cultivation area of the Italian processing tomato is the Southern Capitanata plain. Here, the hardest agronomic challenge is the optimization of the irrigation water use, which is often inefficiently performed by farmers, who tend to ov[...]Article
N.I. Sarker ; S. Islam ; A. Ali ; S. Islam ; A. Salam ; S.M. Hasan Mahmud |Digitalization of agriculture may be a solution to feed a huge growing population in the future. Application of big data is a key tool to digitalize the agriculture sector. Though there is a long debate on its applicability to agriculture, this [...]Article
La réutilisation des eaux usées en irrigation constitue une nouvelle approche intégrée dans la planification et la gestion des ressources en eau et particulièrement dans les pays qui en manquent. Elle permet de libérer les ressources d'eau douce[...]Article
Malgré le relatif consensus établi sur les différentes vertus de lagriculture familiale, notamment à loccasion de la célébration de lAnnée internationale de lagriculture familiale, la comparaison de son efficacité économique avec celle des e[...]Article
This study was carried out to estimate the technical efficiency of the main governorates of wheat production in Egypt during the time period 1990-2012. We apply the stochastic frontier approach for efficiency measurement. The specifications of B[...]Article
A. Chahbi ; M. Zribi ; Z. Lili-Chabaane ; B. Duchemin |En zones semi-arides et particulièrement dans les zones irriguées, le suivi du couvert végétal est un enjeu majeur. Ainsi suivre la capacité de production des plantes et plus particulièrement des céréales est nécessaire. La télédétection est un [...]Article
The effects of climate change on agriculture are often characterised by changes in the average productivity of crops; however, these indicators provide limited information regarding the risks associated with fluctuations in productivity resultin[...]Article
Les analyses prospectives montrent toutes que les déficits céréaliers en Méditerranée pourraient saggraver. Sur le plan international, les effets du changement climatique, les arbitrages entre les différentes utilisations céréalières, ainsi que[...]