FACULTY OF AGRICULTURE

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    Determinants of on-farm cassava biodiversity in Ogun State, Nigeria
    (Taylor & Francis, 2015) Obayelu, O.A.; Akintundea, O.O.; Obayelu, A.E.
    Global food security depends on agro-biodiversity. However, an enormous quantum of genetic diversity of agricultural crops has been lost over the last century, and this implies vulnerability, increased economic risks, reduced food security, loss of resources for future adaptation as well as reduced and unsustainable agricultural growth opportunities. This study examined the determinants of on-farm cassava biodiversity in Ogun State, Nigeria. We profiled cassava biodiversity indices of farmers in the state according to Margalef, Shannon and Simpson diversity indices, and identified factors influencing cassava biodiversity. Data collected from 160 cassava farming households using a multistage sampling procedure were analyzed with descriptive statistics, Poisson regression and Tobit regression models. Farmers’ experience had a positive relationship with their on-farm cassava biodiversity (p < 0.1). The arable land size controlled by the farmer was positively related to Margalef (p < 0.01), Shannon (p < 0.05) and Simpson (p < 0.01) indices. However, the land squared variable was negatively related to Margalef (p < 0.01), Shannon (p < 0.05) and Simpson (p < 0.01) indices. It was recommended that appropriate agricultural land reforms should be incorporated into the agricultural transformation agenda as a key to fostering on-farm cassava biodiversity.
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    Cassava Productivity Growth in Nigeria
    (2019) Oluwafemi1, Z. O.; Omonona, B. T.; Adepoju, A. O.; Sowunmi, F. A.
    Cassava has gained prominence in the world and has become economic crop in the Nigerian agricultural sector. Secondary data was used for this study. The required variables were extracted from General Household Survey Panel Data (GHS-P). The GHS-P is a nationally representative survey of households across Nigeria covering urban and rural sectors. Analytical tools used included Total factor productivity and Markov chain. 82% of populations of Cassava farmers are in the rural areas and close to 73% were young adults including both male and female involved in cassava production. Approximately 65% of the cassava based farmers were single that not yet married and most of the farmers were educated and about 80% and 98% of the cassava based farmers did not have access to credit facilities and extension personnel respectively. Generally, the cassava productivity growth was erratic and very small proportion of cassava farmers that were in lower productivity reduced overtime, while the minimal proportion of cassava farmers that moved into both moderate and high productivity increased overtime respectively. Generally, there is more to be done to increase and attain sustainable high level cassava productivity growth in Nigeria.
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    Nutrient utilisation and growth performance of rabbits fed diets based on maize, cassava or their by-products
    (Taylor & Francis, 1998) Onifade, A. A.; Abu, O. A.; Akande, O. N.; Abanikannda, O. T. F.
    A 70-day feeding trial was conducted to evaluate nutrient intake, digestibility and growth characteristics of rabbits fed maize grain (mg), maize offal (mo), cassava tuber (ct) or cassava peel (cp) based diets. The four test ingredients were included at 30.84% in diets supplying 17% crude protein. The consumption of dry matter, crude protein and crude fibre were higher (P4.05) in mo and cp based diets, while apparent digestibilities were better (Pc0.05) in rabbits fed mg and ct based diets. Rabbits fed mo attained the highest (P<0.05) body weight gain, followed by those fed mg and ct and the group fed cp gained the least. Feed consumption was higher (P<0.05) in rabbits fed cp and mo than mg and ct diets; and the gain: feed ratio was the reverse of the feed intake. It is concluded that mo and ct are effective substitutes for mg, however, diets based on cp would require nutrient supplementation.
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    Sustainable food crop production through multiple cropping patterns among farmers in South Western Nigeria
    (Kalma-Raj, 2007) Fawole, O. P.; Oladele, O. I.
    This paper examined the medley of food crops among farmers as a method of evolved sustainable food crop production. Farmers from different groups were randomly selected and a structured questionnaire was administered on them to elicit information in the areas of crop mixtures and reasons for such mixtures. The result of the study indicates farmers profile with a mean age of 53.4 years with majority married (78%), having non-formal education (37%) and long years of farming experience (39%). Yam maize crop mixture was the most prominent among farmers and the assurance of food security was the prevailing reason for multiple cropping. The study has thus, provided clear insight into the practice of multiple cropping by farmers in the study area and also a basis for a demand-led technology development for the improvement of production.