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- ItemEffects of sources of nitrogen fertilizers on soil chemical properties, growth and dry matter yield of maize varieties(Direct Research Journals, 2024-06-20) Adebayo Abayomi Olowoake; James Adebayo Ojo; Ade Isaac AfeA pot experiment was conducted in the screen house of Kwara State University, Malete, Nigeria to compare the effect of sources of nitrogen fertilizers on soil chemical properties on two maize varieties (SUSWAM and LNTP-Y), growth and dry matter yield as well as its residual effect. The treatments comprised of control, poultry manure, granular urea, prilled urea and neem coated urea at 100 and 110 kg N/ha respectively, each replicated three times and fitted into a completely randomized design (CRD). Growth and yield parameters taken were; plant height, number of leaves, stem girth and dry matter yield. Moreover, the results showed that application of neem coated urea and poultry manure at 100 and 110 kg N/ha respectively significantly (p< 0.05) increased the growth and yield parameters of the both maize varieties when compared with other fertilizer treatments at first and second planting. Application of poultry manure at 110 kg N/ha had a significant and additive effect on soil nutrients after harvesting of SUSWAM and LNTP-Y maize varieties at first and residual planting followed by neem coated urea at 100 kg N/ha. Therefore, neem coated urea at 100 kg N/ha and poultry manure at 110 kg N/ha could serve as a fertilizer for the production of maize variety and soil amendment.
- ItemEffects of Three Animal Manures on Soil Electrical Conductivity and Growth Performance of Corchorus olitorius L.(International Journal of Soil Science, 2025-05-15) 1Saka Habeebah Adewunmi; 2Azeez Jamiu Oladipupo; 3Alabi Khadijah Oyebisi๔ฃ๔๔๔๔๔๔๔๔๔ ๔๔๔๔ ๔๔ฐ๔๔๔๔๔๔๔๔๔๔๔ต๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔ฆ๔ค๔๔๔๔๔ ๔๔ค๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔ญ๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ต๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔ ๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔ฆ๔ค๔๔๔๔ ๔๔ค๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔ญ๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔ฅ๔ฎ๔บ๔๔๔๔๔๔๔๔๔๔ฎ๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔ฎ๔๔๔๔๔ ๔๔๔๔ต๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ต๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔ข๔๔๔๔๔๔๔๔๔๔๔๔ท๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ด๔๔๔๔๔๔๔๔๔๔๔๔ข๔๔๔๔๔๔๔๔๔ ๔ด๔๔๔๔๔๔๔๔๔ค๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔ฏ๔๔๔ฑ๔๔๔ฌ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ด๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔ฆ๔ค๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔ ๔๔๔๔๔๔ ๔๔๔๔๔๔๔ด๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ธ๔ข๔ฑ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ค๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ญ๔๔๔ฅ๔ฎ๔บ๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔ ๔๔๔ฅ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔ ๔ข๔ฏ๔ฐ๔ท๔ข๔๔๔ด๔๔๔๔๔๔๔๔๔๔๔๔ข๔๔๔๔๔๔๔๔๔๔๔ด๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔ฅ๔๔๔๔๔๔๔ฎ๔๔๔๔๔๔๔๔๔ณ๔๔๔๔๔๔ต๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔ณ๔๔๔๔๔๔๔๔๔ข๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ฆ๔ค๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔ ๔๔๔ฑ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ฆ๔ค๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔ ๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ต๔๔๔๔ค๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ญ๔ ๔ฅ๔ฎ๔บ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔ ๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ช๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔ ๔ค๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ญ๔๔๔ฅ๔ฎ๔บ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔ ๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔ค๔๔๔๔๔๔๔๔๔๔๔๔ค๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔ ๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔ฆ๔ค๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔ ๔๔ค๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ญ๔๔๔ฅ๔ฎ๔บ๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔๔๔๔๔๔ฅ๔ฎ๔บ๔๔๔๔๔๔๔๔๔๔๔ค๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔๔ ๔ญ๔
- ItemAssessing Intercropping Population Models with Different Intercropping Efficiency Indices in a Cowpea/Maize Cropping System(Asian Academic Research Journal of Multidisciplinary, 2013-12-18) A.I. AfeFive component population ratios of cowpea and maize at two intercropping population models were studied during the 2008 and 2009 cropping seasons at Ejiba, located in southern Guinea savanna agro-ecological zone of Nigeria. The two intercropping models were :( i) additive at component population ratios of 1.00C: 0.75M, 1.00C: 0.50M and 1.00C:0.25M and ( ii) replacement at population ratios of 0.75C:0.25M and 0.50C:0.50M.Sole cowpea and maize were included as control treatments. The treatments were factorially combined in a randomized complete block in three replicates. The intercropping efficiency was estimated using Land Equivalent Ratio (LER), Land Equivalent Coefficient (LEC), Area Time Equivalent Ratios (ATER) and Monetary Equivalent Ratio (MER) .The additive population model was consistently superior to replacement model in the system suggesting its preference in cowpea/maize intercropping system. The results of the study also showed that the biological yield advantage translated to monetary advantage only in the late maturing cowpea/maize system in the additive population model of 1.00C:0.25M (1.35 and 1.33 in 2008 and 2009, respectively). Based on this study, the MER is a good index to measure profitability in intercropping system.
- ItemEFFECTS OF NITROGEN AND PHOSPHORUS FERTILIZERS ON THE GROWTH AND FRUIT YIELD OF WATERMELON (Citrullus lanatus LINN.) IN SOUTHERN GUINEA SAVANNA, NIGERIA(Faculty of Agriculture, University of Abuja, 2021-05-31) Yakubu, Z.; Afe, A. I; Gudugi, I.A.S; Ibrahim H.M; Ibrahim,R.OThe effects of nitrogen (N) and phosphorus (P) fertilizers on the performance water melon (Citrullus lanatus Linn.) were determined during the 2018 cropping seasons at the Teaching and Research Farm of the Federal University of Technology, Minna, and Gwagwalada (Kutunku),Federal Capital Territory, Abuja. The experiment was a 4 x 4 factorial laid out in Randomized Complete Block Design (RCBD).). Four levels of N and P fertilizer at 0, 30, 60, and 90kg/ha and 0, 10, 20, and 30 kg/ha were combined into a total of 16 treatments combinations. The variety used was sugar baby early maturing (70 to 75 days after planting). The different levels of fertilizer were applied at three weeks after planting. Soil characterization was also done on the study areas. Data were collected on growth and yield parameters. The results show that vine length and number of lateral branches were signi๏cantly in๏uenced by N and P application in the study area. More numbers of marketable fruits were obtained from plots treated with higher N and P as compared with those treated with lower N and P from both sites. At higher N and P application, the seed yield in Federal University of Technology, Minna farm and Gwagwalada (Kutunku) were all better than the control. Application of 90kg N/ha and 30kg/ha P gave the highest yield of seed of 0.9 and 0.8 tons at Federal University of Technology, Minna farm and Gwagwalada (Kutunku) respectively. Application of fertilizers had signi๏cant elongation of vine, produces more lateral branches, signi๏cantly higher marketable fruits and increased seed yield and general performance of watermelon.The signi๏cant edge in performance of Gwagwalada over Minna in growth parameter could be attributed to the rainfall distribution in 2018 cropping season
- ItemSuitability Evaluation of a Typic Plinthustalf in Southern Guinea Savanna Zone of Nigeria, for the production of Quality Protein Maize (Zea mays L.)(Institute of Agricultural Research and Training (IAR&T) Obafemi Awolowo University, Nigeria., 2020) Alabi, K. O.; Wahab, A. A.; Lawal, O.O.; Uthman A. C. O.; Afe A.I.; Omodele T.The need to optimize and produce maize of quality protein content in a Typic plinthustalfs calls for potential suitability evaluation. Hence, three mapping units were established along the toposequence and three profile pits were dug at each per mapping unit. The pits were described and sampled following FAO guidelines. Soil samples were taken from the pedogenic horizons for morphological, physical and chemical data analyses. Linear parametric and square root models were used for assessing the suitability of the soils for maize production. Land qualities considered in the study were climate, topography, wetness, soil fertility and soil physical properties. Except for the fertility status of the land, other qualities were not a constraint to the production of maize at the study site. All the pedons were classified as currently not suitable by both linear and square root models with index of current productivity (IPc) ranging between 1.08 and 2.05. Potentially, using the linear model, the index of potential productivity (IPp) ranged between 63 and 90 thus rated pedon 1 and 2 as highly suitable and pedon 3 as moderately suitable while the square root model indicated all pedons as highly suitable, for both local and quality protein maize production. The limiting factors were mainly low levels of available macro-nutrients (N, P, K, Mg), low organic carbon (0.82 %), and low cation exchange capacity (< 16 cmol/Kg) in all three pedons studied. In conclusion, all the pedons were classified as Typic plinthustalfs were currently not suitable (N1) for Maize Production both by the linear and square root models. Hence, it is therefore recommended that good soil management practices such as integrated soil fertilizer application, effective tillage practices and cover cropping should be adopted to ensure sustainable land use for maize production at the studied site.