Yam is an important tuber crop nutritionally, socio-culturally, and an income generator for many Nigerian. This explains its high demand both locally and internationally, causing increased production as Nigeria leads world production with about 45.41 million metric tons annually. The peculiarity of yam production in Nigeria entails lower yield, high cost of production, and post-harvest losses. Yam produced in Nigeria falls far below the potential crop yield, therefore, it is essential to close these yield gaps through the provision of solutions to the different constraints that hamper sustainable yam production. Despite the challenges, there is still insufficient information on the impact of policies, weeds, pests, and diseases which constitute major constraints. Nigerian farmers mostly utilize indigenous cultural approaches to manage yam production. Their goal of production is to produce yam cultivars that are suitable mainly for food products leading to the neglect of other cultivars. Few selected institutions with a yam mandate have been working on improving the production of D. rotundata and D. alata through breeding yam cultivars suitable for consumption and resilient against pests and diseases. However, more extensive studies should focus on breeding programs for yam resilient under drought and flooding, with peculiar physicochemical properties that give unique textual qualities considered in pounded yam and other yam food products. In this review paper, the significance and limitations of yam production in Nigeria and her efforts to achieve sustainable production are extensively studied.

본 연구에서는 포트하코트 시와 나이지리아 리버스주 오비오/아크박 지역의 인력과 기술력 부족이 농업 종합 기업 발전에 영향을 주는지 검토하고, 또한 이외 어떠한 요인이 농업 종합 기업에 영향을 미치는지 분석을 해보았다. 데이터는 두 지방 정부에서 300개의 농업기업에 대해 확보한 자료이다. 분석방법은 인구적 통계, 요인분석 및 다항로지스틱회귀분석을 이용하였다. 다항로지스틱 분석결과 유의성이 5% 이내이며, 이는 인력과 기술력 부족이 농업 종합 기업 발전에 영향을 주는 것을 의미한다. 이에 농업 종합 기업의 수익을 높이기 위해 기업 내부의 관리를 철저히 해야되고 내부 인원의 협작 및 기술능력을 강화시켜야 한다. 또한 과학기술혁신을 통해 기업의 개혁을 촉진해야 한다.

This study aims to survey current chicken industry and the status of technology based on the KAFACI project on the promotion of good management for increased productivity of market oriented small scale chicken producers in Nigeria. The agricultural sector has been identified as a virile sector with varieties of opportunities for the much sought diversification of revenue base and employment generation in Nigeria despite the dominance of smallholder farmers. The chicken enterprise has being a component of the livestock industry showing increasing importance. Growing entrepreneurships for sustainable growth of the industry requires investigating the prevailing environment in market-oriented chicken production in Southwest Nigeria. This study investigated the production practices, constraints of market oriented smallholder chicken farmers. Data were generated through farm survey of 240 farmers selected by multi-stage sampling techniques from 5 out of 6 states in the Southwest. Data were analyzed using descriptive statistics. The study shows a population of famers dominated by male 76.7% and average year of education of 13.88years. Foundation stock of birds are prominently sourced from commercial hatcheries (75.8%) and reared under intensive management system (87.8%). Majority of the farmers (46.7%) are into rearing of layers, broilers and cockerels with an average stock size of 449, 157 and 158 birds respectively. Birds are fed twice daily (74.8%) on compounded ration by 95.4% of the farmers. Major production constraints are high feed cost (32.1%), shortage of capital (30.0%) and poor access to market (25.4%). However, 96.7% of the farmers considered the enterprise profitable.