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Determinants of agroecological Practices Adoption in the Sudano-Sahelian Zone

Journal of Environmental Protection 2019年第7期10卷 900-918页

作者： Aboubacar Coulibaly Mikael Motelica-Heino Edmond Hien University of Orleans Orleans France University Ouaga I Pr Joseph Ki-Zerbo Ougadougou Burkina Faso Research Institute for Development Ouagadougou Burkina Faso

Under the combined effect of both climatic and anthropogenic factors, agroecosystems and especially arable soils undergo a worrying and fast degradation in the Sudano-Sahelian zone of Western Africa threatening its socio-economic development. Food systems need to be better managed to be more resilient, to increase agricultural production, while conserving natural resources and biodiversity. agroecological practices alternatively with traditional cultural techniques have been locally experimented to cope with local pedoclimatic constraints such as weak (low) soil fertility and climate change, increasing food demand and economic conditions. Our work aims at by taking stock of agroecological knowledge as well as the determinants of their adoption with small-scale farmers in Eastern Burkina Faso. A survey (48 farmers) was conducted in Sampieri (Kantchari district), and Logit model was used to determine equations for agroecological practices adoption. Results show that traditional production practices for millet-bean cultural systems are gradually being replaced by those of agroecological. In fact, 60.4% of producers have participated in at least one agroecological training session and 60.8% of producers are interested at least in one agroecological topic. The most adopted and practiced techniques were superficial plowing, stone-rows, zai and compost, single or in combination (60% of the producers). Determinants of these practices adoption were the increased crop yields, improved of producers’ incomes, the provision or otherwise of material and human resources and training. Additionally, variables such as training, possession of agricultural equipment were positively correlated to the adoption of agroecological practices while illiteracy impacts negatively and significantly this adoption. Moreover, agroecological practices had a significant effect on grain and straw yields of sorghum, thus confirming producers’ claims about the improvements in production observed followi

关键词： agroecological Practices Adoption Determinants Traditional Practices Burkina Faso

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Use of agroecological Techniques by Smallholder Farmers to Improve Sorghum Productivity in Burkina Faso

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Journal of Agricultural Science and Technology(B) 2018年第8期8卷 499-506页

作者： Zomboudré Georges Youma Issaka Abdoulaye Batta Fatou Kaboré Roger Bourgou Tsuamba Gubbels Peter Department of Natural Resource Management Institute for Environment and Agricultural Research (INERA) 04 BP 8645 Ouagadougou 04 Burkina Faso Institute for Environment Science and Rural Development (ISEDR) University of Dédougou BP 176 Dédougou Burkina Faso Groundswell International PO Box 2257 Asheville NC 28802 USA Association Minim Song Panga (AMSP) BP 268 Kaya Burkina Faso Association Nourrir Sans Détruire (ANSD) 09 BP 1670 Ouagadougou 09 Burkina Faso

The prevailing farming system in Burkina Faso is smallholder agriculture based on cereal production, especially sorghum (Sorghum bicolor (L.) Moench) which form the staple diet for the population. Production is constantly challenged by climate hazards, striga (Striga hermonthica (Del.) Benth.) infestation, inefficient farming practices and declining soil fertility. To address these concerns, one study on several agroecological techniques was conducted from 2013 to 2015 in a participative manner with more than 150 male and female farmers from four communities. Each farmer was asked to test out two or three agroecological techniques of his choice and to measure these new techniques against their usual farming practices. These techniques combined the use of organic fertilizer (5 t/ha) and/or mineral fertilizer (2 g/seed hole) with the systems of crop rotation and mixed cropping, in addition to the improved za? technique and the half-moon method. Plant material was composed of local landraces and improved varieties of sorghum, sesame and cowpea. On-farm application of agroecological techniques resulted in significantly increased sorghum production in all four communities. The rates of increase for grain yield were 8% for the half-moon fields and more than 130% for the rotation systems when compared to the farmers’ usual practices. More limited results were achieved with the chemical components of the soil after two years of experimentation. Only the soil’s organic matter showed improvement over the first year. This study shows that crop rotation, mixed cropping and the improved za? technique in combination with compost and improved drought-resistant varieties constitute agroecological strategies favorable to the intensification and diversification of farming systems in the studied locations. The farmers were above all impressed by the on-site management of compost by means of the za? technique which enabled large-scale fertilization of fields.

关键词： agroecological techniques sorghum yield compost mineral fertilizer crop rotation mixed cropping zai.

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Study on Planning and Construction of agroecological Parks in Ecological Corridor——Taking Donglin agroecological Park as an Example

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Journal of Landscape Research 2009年第4期1卷 14-19页

作者：崔志华张金池南京林业大学风景园林学院江苏南京210037

The general situation of planning and construction project for agroecological parks in ecological corridor was introduced and its planning orientation or guiding ideology was also ***,countermeasures and suggestions f... 详细信息

关键词： Ecological corridor agroecological park planning and design

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Sub-regional dimensions of agricultural and environmental nitrogen:The case of Asia

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Science China(Life Sciences) 2005年第Z2期48卷 738-744页

作者： John Keith Syers School of Science Mae Fah Luang University Chiang Rai 57100Thailand

Asia embraces a wide range of cropping environments, largely related to the diversity of climate. To meet the high food requirements of a very large population (some 59% of the earth's total) large inputs of mineral N fertilizer are required (44.2 Tg ***-1 in the mid 1990s).However, because of the low (20%-50%) overall efficiency of use of fertilizer N, sometimes coupled with heavy use in intensively-farmed areas (for example in parts of China), losses of fertilizer N from agricultural land are expected to be high. Part of the N lost is thought to cause pollution of the atmosphere and water resources.A sub-regional approach, based on the FAO agroecological Zone (AEZ) concept, has the potential to provide meaningful assessments of the agricultural and environmental dimensions of *** AEZ concept can also provide the rationale for locating Sub-regional Centers of the International Nitrogen Initiative (INI) by basing the considerations, as far as practicable, on agroecological conditions.

关键词： fertilizer nitrogen, loss processes, use efficiency, atmospheric and water pollution, agroecological zones.

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Spatial Organisation Influences Citrus <i>Pseudocercospora</i>Leaf and Fruit Spot Disease Severity in Cocoa-Based Agroforestry Systems

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American Journal of Plant Sciences 2019年第1期10卷 221-235页

作者： Eunice Golda Danièle Ndo Etienne Akoutou Mvondo Zachée Ambang Bella Manga Christian Cilas Lucien Bidzanga Nomo Cynthia Gidoin Marie-Ange Ngo Bieng Institute of Agricultural Research for Development (IRAD) Regional Agricultural Research Centre of Nkolbisson Nkolbisson Cameroon Université de Yaoundé 1 Département de Biologie et Physiologie Végétale Yaoundé Cameroon CIRAD UPR Bioagresseurs Montpellier France UMR Agronomie INRA-AgroParisTech Thiverval-Grignon France CIRAD UMR SYSTEM Montpellier France CATIE Programa BOSQUES BIODIVERSIDAD YCAMBIO CLIMATICO Turrialba Costa Rica

An investigation to assess the spatial structure and severity of Pseudocercospora leaf and fruit spot disease (PLFSD) on citrus trees in cocoa-based agroforests was carried out in three contrasting ecological zones in southern Cameroon, viz: 1) the humid forest zone, 2) the degraded forest zone, and 3) the forest-savannah transition zone. Two main parameters were investigated viz: 1) the spatial structure of cocoa based agroforests, and 2) the disease severity. In total, the spatial structure of 19 cocoa-based agroforests was analysed using the Ripley K(r) function, meanwhile the collection of epidemiological data that consisted of noting the presence of PLFSD spots on leaves and fruits on 438 citrus trees was used to characterise the severity of the disease. Results showed that, the spatial structure of citrus trees in these agroforests investigated were regular in seven plots, random in nine, and aggregated in three. Aggregated plots presented a significantly higher mean of disease severity on leaves and fruits (28.55 and 30.37 respectively), as compared to randomised (20.91 and 16.32 respectively) and regular plots (16.28 and 14.97 respectively), at P-value < 0.05. These results suggest that the spatial structure of citrus trees in the cocoa-based agroforests studied influences the severity of PFLSD. Proper integrated control measures can therefore be initiated, leading to a considerable reduction of the use of manufactured inputs, and thereby, the cost of production of citrus fruits.

关键词： Aggregated Spatial Structure Ripley Function agroecological Management of Disease Pseudocercospora angolensis Cocoa-Based Agroforests Citrus

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