Summary. -Although a wide range of policies to conserve the environment in the forest zones of southern Ghana exists on paper, in practice most are only applied in the commercially-valuable timber reserves. Environmental policies have little impact on those living in the forest margins since they are only sporadically applied, if at all. Indeed, even accepted community norms for resource use tend to be set aside when their application would interfere with key occupations. Livelihoods, however, depend heavily on natural resources, so conservation is necessary. The dilemma is to devise policies that are effective. Some decentralization of policy-making might improve matters, but care will be needed to avoid pitfalls.
Bambara groundnut (Vigna subterranea) is so important in most of Africa, and potentially so in other tropical regions, that improvement of its production — especially on a commercial scale — and of its germplasm both deserve renewed and intensive scientific study. Yet, compared with other legumes (such as groundnuts, beans and cowpeas), bambara groundnut has received almost no research or extension attention, although in Ghana and other parts of Africa, it has a higher market value (on a per unit weight basis) than these other legumes. Improving indigenous farm management systems and methods that have resulted from age-old experience and tradition will be difficult for local farmers if they are completely entrenched in their habits. Thus, a survey was conducted to identify and document the traditional farm management practices and key considerations used in bambara groundnut production, along with indigenous knowledge systems linked to the conservation of bambara groundnut germplasm. The study was conducted in the Upper West region of Ghana, which is an area with considerable bambara groundnut genetic diversity. Valuable information on its production and genetic resources exists within the indigenous knowledge systems studied, and ranges from economic and agronomic criteria for peasant farmer selection of particular varieties and traditional uses of the crop, to strategies for the management and conservation of locally adapted varieties, pest and disease management, and environmental and ecological monitoring systems. Research and extension requirements for improving crop production were identified. In addition, germplasm was collected and characterized for conservation.
National outputs of cocoa beans in Ghana has seen appreciable increases in the last six years due in part to pragmatic policies including the national control of pests and diseases on all cocoa farms, the increased use of fertilizers on farmers' farms and increase in the producer price paid to farmers. However, productivity on farmers' farms remains low at 400 kg/ha against potential yield of over 2.5 tonnes per hectare. The continuous mining of inherent fertility of cocoa soils without replenishment has been identified as major cause of the low productivity of cocoa farms. Using structured survey instruments, this study sought to identify farmer soil fertility management practices that enhances yield and which could be improved by way of research outcomes. A total of 150 farmers from three districts in the Eastern region were randomly selected and interviewed on one-on-one basis between July and October 2008. Farmers' soil fertility management practices included chemical and organic fertilizer application, control of erosion and mulching. Farmers who are members of farmers' associations had better access to fertilizers and also applied the fertilizers correctly and at the right time. The effectiveness of fertilizer application was dependent on effective control of blackpod disease, capsids and judicious pruning and shade management. The findings imply that intensive education of farmers on the need to carry out recommended husbandry practices was critical if soil fertility management strategies are to be translated into improved on-farm productivity.
There is limited documented scientific information on garden production systems managed in developing countries, partly because both researchers and research administrators have, until recently, ignored them as legitimate areas of study, and because such production systems have been regarded as informal production activities, managed outside conventional market and economic channels. Yet in a developing country such as Ghana, these production systems are potentially able to contribute substantially to the food security and health needs of households. This study was aimed primarily at providing critical scientific information for understanding the complex web of production and management factors associated with garden production systems. A total of 300 survey responses, representing the Sudan savannah, Guinea savannah and moist deciduous forest agro-ecological zones of Ghana, were analyzed (27% of respondents were females and 73% were males). Several hypotheses from the field agriculture literature were tested to determine their relevance in garden production systems. Although, for the country as a whole, a variety of garden crops are cultivated, each agro-ecological zone concentrated on a set of four major crops, with the actual food crops differing across agro-ecological zones. The type of protective fencing used was not statistically associated with land tenure (i.e., own versus rented land) status of the gardener (χ2=3.285, P=0.4501). Gender responsibilities in garden production and management tended to be more equally shared in the forest agro-ecology, where garden crops are cultivated for household consumption and for generating family income. In contrast, in the two savannah zones, adult males undertook a disproportionate share of activities to produce garden crops that were primarily for marketing. Valuable information on production and management exist within the traditional garden production systems studied, and range from socio-economic, agronomic and medicinal considerations in selecting garden crops and fruit trees, to ecological monitoring systems and strategies for garden management.
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