Browsing by Author "Afe, A. I."

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    ASSESSMENT OF SORGHUM/OKRA INTERCROP PRODUCTIVITY, COMPETITIVE BEHAVIOR AND PROFITABILITY IN SOUTHERN GUINEA SAVANNAH AGROECOLOGY, NIGERIA
    (Reviews In Food And Agriculture (RFNA), 2025-01-15) Afe, A. I.; Alagbe, Y.L.
    Sorghum-okra intercropped at different population ratios and introduction periods were studied during the 2021 cropping season. Four population densities of okra (100 %, 75 %, 50 %, and 25 %) were introduced to sorghum three times [ same time (ST), two weeks before planting (2WBP) and two weeks after planting (2WAP)] in a factorial combination in a randomized complete block in split plot, replicated three times. Sole sorghum and okra were included in the treatments as a check. Regardless of population ratios, the yield of sorghum increased as the population density of okra decreased and with further delayed at the time of introduction. Land equivalent ratio (LER) demonstrated intercropping advantage at all population ratios and time of introduction. The area time equivalent ratio (ATER) index, however, indicated no meaningful intercropping advantage. Competitive ratio (CR) showed that okra was more competitive than sorghum when full populations of both crops were intercropped at all times of introduction. Interestingly, however, reduction in the population of okra to 75 % and below, sorghum was more competitive than okra. The Aggressivity (A) values were positive for okra and negative for sorghum when it was planted two weeks ahead of sorghum (2WBP). Monetary advantage (MA) was positive in all the treatments. The discrepancy and inconsistency among the indices for assessing intercropping efficiency suggest that using one index may be misleading and hence, an appropriate index should be used based on the objective of the grower
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    EFFECTS OF COW DUNG MANURE AND SINGLE SUPERPHOSPHATE ON SOIL PHOSPHORUS AVAILABILITY, GROWTH AND YIELD OF MAIZE IN A GLEYSOL OF KABBA, NIGERIA
    (Faculty of Agriculture, University of Uyo, Akwabom State, Nigeria, 2016-09-25) Ogundare1, S. K.; Afe, A. I.; Kadiri, W. O. J.; Etukudo, O. O.
    Field experiments were conducted to determine the effect of cow dung amended with single superphosphate on phosphorus availability, growth and yield of maize in a Gleysol. The treatments consisted of sole application of cow dung 10 t ha-1 and reduced levels of cow dung (2, 4 and 6 t ha-1) combined with varying levels of single superphosphate (30, 20 and 10 kg ha-1) fertilizer. Significant treatment effects were observed in plant height and leaf area whereas stem girth was not significantly affected. Leaf phosphorus (P) concentrations were significantly affected by the amendments and the percentage changes ranged from 0.17 - 0.48 and 0.23 - 0.43 in 2011 and 2012 respectively. The P content of maize leaf significantly improved under combined application of cow dung and SSP compared with sole cow dung application and control. The complementary use of cow dung at 4 t per ha + 20 kg per ha SSP produced the highest seed yields of maize (3.21 and 2.56 t per ha) in 2011 and 2012 respectively. It is therefore recommended that the use of cow dung (4 t per ha) combined with 20kg SSP per ha be adopted for maize cultivation in the study area
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    Evaluation of sulphuric acid concentrations and mechanical scarification as pre-germination treatments in date palm (Phoenix dactylifera L.)
    (Horticultural Society of Nigeria, 2017) Afe, A. I.; Ogundare, S.K.
    An experiment was carried out at the Laboratory of College of Agriculture, Kwara State University, Malete to investigate the effects of pre germination treatments on date palm (Phoenix dactylifera L). The treatments were concentrations of sulphuric acid at 100%, 60%, 40%, scarification, and the control. The treatments were arranged in a completely randomized design and replicated three times. Germination percentage differs significantly among the treatments. Germination commenced earlier in treated seeds with sulphuric acid (40% and 60%) and scarification methods. Highest germination percentage (83.34%) was obtained in the treated seeds with 40% sulphuric acid at 14 days. This treatment completed germination in 21 days and was found to be appropriate for breaking dormancy in date palm.
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    GROWTH AND YIELD OF SORGHUM AS INFLUENCED BY POPULATION DENSITY AND TIME OF INTRODUCTION OF COMPONENT OKRA
    (2025-02) Afe, A. I.; Alagbe, Y.L; Awoniyi, O.A
    A field trial was carried out at the Teaching and Research Farm of Kwara State University, Malete, and the National Centre for Agricultural Mechanization (NCAM) to investigate the growth, yield, and intercropping advantage as influenced by population density and time of introduction in sorghum/okra intercropping. Four population densities of okra (100 %, 75 %, 50 %, and 25 %) were intercropped with the full population of sorghum at the same time (ST), two weeks before (2WBP) and two weeks after (2WAP). Sole sorghum and okra were included in the treatments as a check. The treatments were arranged as 3 x 6 factorial combinations in a randomized complete block in a split-plot and replicated thrice. Plant height, leaf area, grain, and fruit yield of sorghum and okra were influenced by population density and time of introduction. Regardless of population ratios, the yield of sorghum increased as the population density of component okra decreased and with delayed in the time of introduction. The lowest grain yields 1,534.58 kg/ha and 1,327.83 kg/ha respectively for Malete and NCAM were obtained where the full population ratio of both crops was intercropped. Intercropping advantage as measured by land equivalent ratio (LER) and land equivalent coefficient (LEC) indices demonstrated intercropping advantage at all population ratios and time of introduction. All population ratios and time of introduction tested demonstrated economic advantage as observed in positive monetary advantage index (MAI) values. Simultaneous planting and planting sorghum two weeks before okra at a full population of both crops is recommended for adoption in sorghum/okra intercropping.