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Abstract

Purpose: The study evaluated how farmer acquisition, sharing and use patterns of information and knowledge interact with different socioeconomic factors to influence integrated soil fertility management (ISFM) technology uptake.

Design/methodology/approach: The study was conducted as part of an evaluation of field-based farmer learning approaches introduced by SOFECSA in Zimbabwe. Building on emerging farmer interactive platforms, data were collected using farmer participatory research approaches.

Findings: Over 90% of the farmers identified the national extension agents as the farmers' most preferred and reliable sources of information on ISFM, with farmer-to-farmer interactions ranking second. Non-governmental organisations and the print media emerged as the least trusted sources of agricultural technical information. Field-based learning centres, which enabled interactive evaluation of different ISFM options, constituted ~50%, indicating that they were major platforms for information and knowledge sharing. Uptake of ISFM was influenced by farmer resource group and farmers' visits to learning centres. Farmer experience and access to extension services were, in turn, the major factors influencing farmers' use of ISFM information. Approaches that support farmer-to-farmer interactions are required and learning centres are a suitable platform for such interactions to occur.

Practical implications: The article brings to attention the role of learning centres in fostering adoption of ISFM technologies. Insights on the need to support and strengthen agricultural extension in rural smallholder communities are provided.

Originality/value: This is a unique study exploring the role of farmer-oriented information and knowledge management in promoting complex technologies such as ISFM. A new dimension on the demands of new approaches for information dissemination to enhance knowledge sharing is presented.  相似文献   
2.
The aim of this study was to compare sprint performance over 10 and 20?m when participants ran while towing resistances, weighing between 0 and 30% of body mass. The sample of 33 participants consisted of male rugby and soccer players (age 21.1?±?1.8 years, body mass 83.6?±?13.1?kg, height 1.82?±?0.1?m; mean?±?s). Each participant performed two sets of seven sprints over 20?m using a Latin rectangular design. The times were recorded at 10 and 20?m using electronic speed gates. The sprints of 13 players were video-recorded to allow calculation of stride length and frequency. For both sprints, a quadratic relationship was observed between sprint time and resistance as sprint time increased from 2.94?s to 3.80?s from 0 to 30% resistance. This relationship was statistically significant but considered not to be meaningful for performance because, over the range of resistances used in this study, the quadratic model was never more than 1% (in terms of sprint time) from the linear model. As resistance increased, the stride length shortened, with mean values of 1.63?±?0.13?m at 0% body mass and 1.33?±?0.13?m at 30% of body mass. There was no significant change in stride frequency with increasing resistance. The results show that in general there is an increase in sprint time with an increase in resistance. No particular resistance in the range tested (0?–?30%) can be recommended for practice.  相似文献   
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