In mixed crop-livestock farming systems, smallholder farmers face the challenge of insufficient dry season livestock feed whilst crop production is mainly constrained by poor soil fertility and erratic rains. Conservation agriculture (CA) which is premised on three main principles namely minimal soil disturbance, crop rotations and mulching is being promoted as a potential solution to declining soil productivity. However, farmers implementing CA in mixed crop-livestock systems are conflicted by the use of crop residues either as livestock feed or as mulch under crop production. A study was carried from 2012/13 to 2014/15 season in Murehwa, a subhumid region of Zimbabwe, to evaluate the effects of maize-legume cropping systems on forage, maize grain yield and gross margins. In this context, forage refers to the plant material/biomass harvested for livestock feeding. The cropping systems involved one conventional tillage practice with continuous sole maize (CT), four CA treatments consisting of continuous sole maize, maize-mucuna intercrop, maize-cowpea intercrop and maize-groundnut/soybean rotations. The experiment was replicated on eight farmers' fields with each farmer treated as a replicate. Maize-mucuna (4 134 kg ha(-1)) and maize-cowpea (3 999 kg ha(-1)) intercrop systems significantly increased forage yield compared to CA sole maize (3 646 kg ha(-1)) and CT sole maize (3 076 kg ha(-1)). Among the rotations, maize-soybean rotation system performed better than the maize-groundnut system with respect to forage yield and maize grain. Intercropping and sole cropping systems however showed no significant maize grain yield difference. The highest and lowest gross margins/ha were obtained from the maize-mucuna intercrop (US$1395) and maize-soybean rotation system (US$507), respectively. The study thus suggests that farmers can grow legumes as intercrops with maize without any loss in maize grain yield. Maize-mucuna intercropping was the best of the tested cropping systems with respect to forage yield and gross margins in mixed crop-livestock systems of Murehwa.
Socio-economic factors that influence the adoption of management practices and technologies by farmers have received wide attention in the adoption literature, but the effects of socio-psychological farmer features such as perceptions and motivations have been analysed to a lesser extent. Using farm household survey data from three regions in northern Ghana, this study explores farmers' motivations and perceived adoption impediments for three sustainable intensification practices (SIPs): improved maize varieties, cropping system strategies, and combined SIPs (i.e. improved maize and cropping system strategies), and the effect of motivational factors on decisions to adopt SIPs. First, explorative factor analysis (EFA) was used in identifying factors of motivations and impediments for adoption of SIPs. Then, a multinomial logit model was used to analyze the effect of socio-economic farm characteristics and motivational factors on farmers' decisions to adopt SIPs. EFA identified three motivational factors: personal satisfaction, eco-diversity and eco-efficiency, which differed in importance between the three regions. Across these regions, higher scores for aspects of personal satisfaction were associated with lower interest in improved maize varieties compared to cropping system strategies, while the opposite was true for eco-efficiency which was related to a stronger preference for improved maize varieties. Uncertainty, absence of social support, and resource constraints were identified as impediment factors. The logit model demonstrated that extension services seemed to support the use of improved maize varieties more than the implementation of cropping system strategies. We conclude that motivational factors significantly influence farmer adoption decisions regarding sustainable intensification practices and should be considered systematically in combination with socio-economic farm features and external drivers to inform on-farm innovation processes and supporting policies.
Potato is a major food staple in the tropical highlands of Africa. However, its production is constrained by seed-borne diseases, with bacteria wilt (BW) being the most devastating and difficult to manage. Currently, there is no single e remedy for the disease. This paper uses Means-End Chain analysis to assess the psychosocial factors associated with the management of BW in potato production. It focuses on smallholder farmers in Central and Rift Valley regions of Kenya. The paper finds BW management is characterized by use of several practices, majority of which are ineffective in controlling the disease. They are, however, used mainly to increase yield, hence income and profits, and to achieve the personal values or life goals farmers aspire for. The paper concludes that BW management in smallholder potato farms is driven by both economic incentives (i.e., higher incomes and profits) and psychosocial factors. It discusses the implications of these findings for policy and practice.
Care-farms are increasingly utilized as a means of providing care, support, and therapy for a wide range of different populations, enabling people to cultivate social, physical, mental, and emotional well-being. This study explores the impacts of a care-farm intervention for traumatically bereaved individuals, a population at high-risk of poor physical and psychological outcomes. The study examines how a care-farming model can enable and encourage participants to cultivate healthy and sustainable lifestyles. Following their participation in a care-farming intervention, bereaved parents, siblings, and spouses described significant pivots toward healthier eating, improved sleep outcomes, and increased physical activity. Our results indicate that care-farming may have potential to influence positive changes to health and health behaviors that last beyond the intervention period.
Changing climate patterns and increases in climate extremes pose new challenges to livelihoods of ethnic communities in the upland area in Thua Thien-Hue (TTH) province. Unpredictability and extreme events have had adverse effects on both farming and income of many ethnic minority households who are already more likely to be vulnerable due to socio-economic and cultural marginalization. Promoting household resilience to climate extremes has emerged as a key development priority for those living in this area. Using data from a household survey conducted in two upland districts of TTH province (Nam Dong and A Luoi), this study employed FAO's resilience framework to measure household climate change resilience of different ethnic groups and a Poison regression model to identify determinants of household adaptation. Results showed that ethnic minority households had relatively low resilience to climate change and variability with the resilience index only 0.428. Due to geographic isolation, agriculture-dependent ethnic minority households in A Luoi were least resilient to climate change. Results suggest that interventions aimed at promoting climate resilience for ethnic minority households should focus on increasing people's knowledge of climate change and associated impacts and risks; and improving household income, savings and strengthen household asset base. Almost all households in the study areas have adopted adaptation measures, such as adjusting the seasonal calendar for crop production; using local crop varieties; practicing mixed cropping; and mulching. Education level, climate change awareness and risk perception of the household head, household income source and ability to access credit were key elements of households' choice of adaptation strategies.
