Browsing by Author "Fatokun, Kayode"

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    Influence of diesel spillage on the productivity of ipomoea batatas and lactuca sativa
    (University of Zululand, 2013) Fatokun, Kayode; Zharare, G.E; Zharare, G.E.
    The effects of diesel contamination in soil on the germination, growth and dry matter partitioning in Lactuca sativa (crisp head variety) and Ipomoea batatas (dagga variety) were studied at two diesel concentration ranges 0-30 and 0-6 ml/kg soil. The first experiment tested the effects of diesel concentration and age of diesel contamination in soil on the germination of L. sativa and I. batatas. The second experiment investigated the effects of diesel contamination in soil on the growth and dry matter partitioning in I. batatas and L. sativa. The effects of diesel concentration in soil contamination on the germination of L. sativa and I. batatas varied with the diesel concentration and the age of diesel contamination in the soil. Diesel inhibited the germination of L. sativa and I. batatas in a concentration dependent manner, showing increased inhibition with increasing concentration of diesel contamination in the soil. Also, the critical concentration of diesel for toxicity on the germination of L. sativa and I. batatas increased with the aging of diesel contamination in soil. However, the influence of diesel contamination in soil on the germination of the two species diminished with the age of diesel contamination in soil, suggesting possible reduction in diesel toxicity over time. The germination of L. sativa was more affected by diesel contamination in soil than that of I. batatas. The result of experiment two indicated that, after 14 weeks of growth, the plant height, number of leaves, stem lengths, root lengths and the leaves chlorophyll content of L. sativa and I. batata, were highly negatively correlated with diesel concentration in soil contamination. The effects of diesel contamination in the soil on dry matter partitioning of the two species also varied with diesel concentration in soil contamination. At low diesel concentration in soil contamination in soil contamination (0-6 ml/kg soil), allocation of dry matter to the shoot system was favoured resulting in high shoot: root ratio of 4.54 and 12.91 for L. sativa and I. batatas respectively. However, at diesel concentration in soil contamination 0-30 ml/kg, allocation of dry matter to the root was favoured, an indication of the effort of L. sativa and I. batatas to survive the phytotoxic effects of diesel hydrocarbons in the soil. The effects of diesel contamination in soil on the germination and growth of Ipomoea batatas were more pronounced on the germination and growth of Lactuca sativa. It can be concluded that, the phytotoxicity of diesel contamination in soil on the germination and growth of L. sativa is markedly stronger than the phytotoxity of diesel on the germination and growth of I. batatas.
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    The Access and use of Library and Internet as Information Source by Agricultural Academics and Extension Workers within King Cetshwayo District Municipality of Kwazulu-Natal Province, South Africa
    (ResearchGate, 2022-02) Fatokun, Kayode; Salman, Abdulsalam Abiodun; Adanlawo, Eyitayo Francis
    Information plays a vital role in agricultural production, it is believed to be the foundation for improved agriculture. To improve agriculture, access and use of information is required. This study investigated the access to and use of library and internet by agricultural extension workers and academics as information source. Shannon and Weaver model theory was used to underpin the study. Purposive sampling was used to select three local municipalities within King Cetshwayo District of KwaZulu-Natal Province in South Africa. Quantitative technique was adopted with self-administered structured questionnaire. Convenience sampling technique was adopted to select 60 extension workers in three offices of the department of agriculture located in Eshowe, Melmoth and Ngwelezane and 9 academics from department of agriculture, University of Zululand, making the total number of the study participants sixty-nine (69). Statistical package for social sciences (SPSS) software was used to analyze data collected. Findings revealed that internet facilities are not adequate in agricultural department offices located in the rural areas, thereby, led to minimal use of internet.; Academics regular access to internet led to regular use of internet. Also, Academics had high access to library but low use of library. Most extension workers do not have access to library, thereby, they hardly use library for information source. The study recommends that effort should be made to train, especially the old extension workers on the use of internet for agricultural information source. Use of library should be encouraged among academics and extension workers.