Browsing by Author "Adediran, J. A."

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Effects of compost application on remediation and the growth of maize planted on lead contaminated soil
(International Union of Soil Sciences, 2010) Adejumo, S. A.; Togun, A. O.; Adediran, J. A.; Ogundiran, M. B.
A field experiment was conducted in 2008 and 2009 to test for the effects of Mexican Sunflower (SW) and Cassava waste (CW) composts as well as inorganic fertilizer on the growth of maize planted on lead contaminated soil. Different application rates of 0t/ha, 20t/ha and 40t/ha were used for the two types of compost while inorganic fertilizer and 0t/ha were used as checks. The experiment was laid out in Randomized Complete Block Design with four replicates. It was observed that compost application increased significantly the vegetative and yield parameters of maize and performed better than inorganic fertilizer (P<0.05). Higher dose (40t/ha) of MSW compost gave the highest plant height, dry matter yield, leaf area and grain yield. More importantly, the experiment shows that there was a reduction in the final concentration of lead in soils of all the compost treated plots by 50-70%. Though, application of compost did not restrict the uptake of lead by the maize crop the concentrations were lower than those of control and inorganic fertilizer plants. Higher concentrations were also detected in the root than other plant parts. This method of remediation could be recommended for restoration of lead contaminated sites.
Field assessment of progressive remediation of soil contaminated with lead-acid battery waste in response to compost application
(Scientific Research Publishing, 2011) Adejumo, S. A.; Togun, A. O.; Adediran, J. A.; Ogundiran, M. B.
Addition of compost to heavy metal-contaminated soil has been employed to remediate contamination. Such rectification, however, depends on the type of compost and the contaminant involved. The efficacy of Mexican sunflower (MSC) and Cassava peel (CPC) composts applied at 0, 20 and 40 t/ha as well as inorganic fertilizer (NPK, 20:10:10) (100 kg N/ha) on the remediation of a battery waste-contaminated site in Ibadan, Nigeria was assessed. No compost or NPK fertilizer served as the control. The experimental design was a randomized complete block with 4 replicates. Soil analysis before and at 1, 2, 3 and 12 months after compost application was carried out. Mean lead (Pb) concentration (134,000 mg/kg) was high at this site. Twelve months after treatment, MSC and CPC applied at 40 t/ha had reduced the plant available lead concentration in the soil by 69 and 49%, respectively, whereas 20 t/ha had reduced the concentration by 58 and 34%, respectively. The relationships between soil lead and organic matter content (r = -0.75), phosphorous (r = -0.59) and pH (r = -0.77) were negative. NPK fertilizer had a limited effect (7% reduction) on Pb. Application of MSC at 40 t/ha brought about a remarkable reduction in Pb concentration.
Influence of different fertilizer application rates on growth and yield components of two maize varieties in a forest-savannah-transition agro - ecology zone
(Faculty of Agriculture, University of Port Harcourt, Rivers State, Nigeria., 2018) Anjorin, F. B.; Adejumo, S. A.; Adediran, J. A.; Adebayo, A. K.; Ogunniyan, D. J.; Olanipekun, S. O.
Field study on the influence of fertilizer application on growth and yield components of maize was carried out in 2015 and 2016 at the Institute of Agricultural Research and Training (I.A.R&T), Ibadan Station. Two maize varieties (ILE-1-OB and TZPBSR-W) were evaluated under three rates of NPK 20-10-10: 0, 50 and 100 kg N ha-1, one rate of Tithonia compost; 10 t ha-1 (representing 10.7 kg N ha-1) and two rates of NPK and Tithonia compost combinations (50 kg N ha-1+10 t ha-1 and 100 kg N ha-1+10 t ha-1) using randomized complete block design (r=3) arrangement. Selected maize plants were assessed for plant height (cm), leaf area (cm2), stem diameter (cm), number of ears per plant, number of rows per cob, number of kernels per row, number of kernels per cob, 1000-kernel weights and grain yield. Various growth and yield components evaluated increased significantly with increased fertilizer application. Combinations of 50 kg N ha-1+ 10 t ha-1 and 100 kg N ha-1+10 t ha-1 enhanced growth and yield performances of maize better than sole applications of 50 or 100 kg N ha-1. Highest grain yield was obtained under 50 kg N ha-1 +10 t ha-1 (5.26, 5.82 t ha-1) and 100 kg N ha-1 + 10 t ha-1 (5.78, 5.91 t ha-1) in 2015 and 2016 respectively. The use of 50 kg N ha-1 inorganic fertilizer in combination with 10 t ha-1 (10.7 kg N ha-1) Tithonia compost adequately enhanced growth and yield performance of maize in the Forest-Savannah-Transition agro - ecology zone of Nigeria.
Varietal responses of pigeon pea (Cajanus cajan (L.) Millsp.) to application of compost
(Society of Underutilized Legumes (SUL), 2020) Ogunjinmi, S. O.; Adejumo, S. A.; Adediran, J. A.; Togun, A. O.; Olunloyo, A. A.
Compost use is one of the most important factors, which contribute to increased productivity and sustainable agriculture. The study was carried out at the screen house of the Institute of Agriculture Research and Training (I.A.R&T), Ibadan to evaluate the effects of different levels of compost fertilizer on the growth and yield on three varieties of pigeon pea; A-NSWCC 24, B-NSWCC 29A and C-NSWCC 34D). Compost (Poultry manure + Mexican Sun flower) was applied in 0 tha-1, 5 tha-1, 10 tha-1and 15 tha-1. Growth data were collected based on days to flowering, 50% and 100 % flowering, plant height, stem height, number of leaves and stem diameter. Yield parameters were collected based on pod length, number of seeds per pod, pod weight, grain yield kg ha-1, 100 seed mass (g) were sampled when the pods were matured. All data collected were subjected to Analysis of Variance using Genstat statistical package (2013) and treatment means separated using Least Significant Difference (LSD) at P=0.05. The result obtained showed the highest mean number of leaves was obtained in the compost 5 tha-1on variety A (272.33) leaves. From the result considering grain weight, seed weight harvested/plot, 100 seed weight, number of seeds/pod and days to flowering the sorting order results indicated that the best mean performance was obtained in 15 tha-1 compost application on variety A. The application of the compost has significant effect on the three varieties and therefore can be recommended for cultivation of pigeon pea.