3 research outputs found

    Palm Bunch Ash Effect on Soil Base Saturation and Growth of Cucumber (Cucumis Sativus L.)

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    This study was carried out to assess the effect of Palm Bunch Ash (PBA), at various levels (0, 2, 4t/ha) on soil Base Saturation and growth of Cucumis sativus L. at the Teaching and Research Farm, Rivers State University, Port Harcourt. PBA, and Soil samples (0 – 15cm) before and after application, from the experimental plots, were collected and analyzed with standard methods for Physico-chemical properties and Base Saturation calculated. A total of 9 treatments were used with T0 (Control), T2, and T4, where T represents PBA as treatment, and the subscripts 0, 2, and 4 represent the levels. The experiment was a 1x3 factorial in Randomized Complete Block Design (RCBD) with 3 replicates. 18 seeds of cucumber (2 per hole) from NSPRI, Port Harcourt were planted on each treatment plot of 2 x 2m at plant spacing of 45 × 45cm. Thereafter, it was thinned to one (1) per hole after emergence. This implies that there were a total number of 10,000 plants per hectare. Growth parameters include shoot height (cm), 3, 6, and 9WAP, and a number of leaves, 3, 6, and 9WAP. Data generated from the field were subjected to a one-way ANOVA test using the Minitab package and the means were separated using Tukey’s Honest Significant Difference at 95% probability. The results revealed that Base Saturation increased (p<0.05) as the treatment level increased in the treated soil with the highest 65.96 of 4t/ha. Again, there was a significant effect (p<0.05) on shoot height, as the PBA level, increased in treated soil with the highest values  13.97 recorded in 2t/ha, and 48.13 and 77.90 recorded in 4t/ha for 3, 6, and 9WAP. Similarly, for a number of leaves, the highest values were recorded in 4t/ha, also for 3, 6, and 9WAP.  Hence, PBA is recommended as a good amendment for acid soil neutralizer, Base Saturation booster, and nutrient buffer and supplier to the soil and ultimately to plants

    Effect of Palm Bunch Ash on Soil pH And Growth of Cucumber (Cucumis Sativus L)

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    A field experiment to assess the effect Palm Bunch Ash (PBA), at various levels (0, 2, 4t/ha) on the pH of soil and growth of Cucumis sativus at the Teaching and Research Farm, Rivers State University, Port Harcourt, was conducted. Soil samples (0 – 15cm) before and after application, from the experimental plots were collected, and analyzed with standard methods for pH and nutrients. Also, Palm Bunch Ash (PBA) sub-sampled, and analyzed with standard methods for pH used for the experiment. A total of 9 treatments were used with A0 (Control), A2 and A4, where A represents PBA, and the subscripts 0, 2 and 4 represent the treatment levels. The experiment was a 1x3 factorial in Randomized Complete Block Design (RCBD) with 3 replicates. 18 seeds of cucumber (2 per hole) from NSPRI, Rumueme, Port Harcourt were planted on each treatment plot of 2 x 2m at a plant spacing of 45 × 45cm. Thereafter, it was thinned to one (1) per hole after emergence. This implies that, there were a total number of 10,000 plants per hectare. Growth parameters include shoot height (cm), 3, 6 and 9WAP, and Number of leaves, 3, 6 and 9WAP. Data generated from field were subjected to one-way ANOVA test using the Minitab package and the means were separated using Tukey’s Honest Significant Difference at 95% probability. The results revealed that pH increased (p<0.05) as the amendment level increased in the treated soil with the highest 6.00 of 4t/ha. Also, there was significant effect (p<0.05) on growth, as the PBA level increased in the treated soil with the highest values  13.97cm recorded in 2t/ha, and 48.13cm and 77.90cm recorded in 4t/ha for 3, 6, and 9WAP. Similarly, for number of leaves, the highest values were recorded in 4t/ha, also for 3, 6, and 9WAP.  Hence, PBA is recommended as good amendments for acid soil neutralizer and nutrient buffer and supplier to the soil and ultimately to plants

    HEAVY METAL ACCUMULATION IN MAIZE (Zea mays L.) GRAIN GROWN ON DIFFERENT DUMPSITE SOILS

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    This study was carried out at the Botanical Garden of the Department of Plant Science and Biotechnology, in Rivers State University (RSU), Port Harcourt, Nigeria with the aim of investigating heavy metal accumulation in maize grain grown on different dumpsite soils. Soils used were collected from three different locations with the control; Njemanze Dumpsite, Mile One Flyover Dumpsite and Chinda by Iwofe Dumpsite and analyzed for the presence of the following heavy metals; Cadmium (Cd), Chromium (Cr), Silver (Ag), Lead (Pb) and Mercury (Hg). Soil from Rivers State University Botanical Garden was used as control soil. The soils were analysed using the American Public Health Association (APHA 3111C) method to determine the heavy metal concentration level. The seeds of maize were sown into polybags containing the different soils and the maize plants were allowed to grow to maturity. The result showed the presence of heavy metals in all soil samples with Mile One Flyover Dumpsite having the highest concentrations (Cd; 46.771, Cr; 61.885, Ag 18.629, Pb; 354.386, Hg; 170.474) and RSU (Control soil) had the least concentrations (Cd; <0.001, Cr; 12.295, Ag; <0.001, Pb; <0.001, Hg; <0.0005) of the metals. The heavy metals in the maize grains of the matured maize plants were analysed. The result showed the maize grains of the plants in the soil from Mile One Flyover Dumpsite had high concentrations while the control soil from Rivers State University had low concentrations except Cr that was slightly high when compared to WHO standard
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