Browsing by Author "Sodah, M.G."

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    Effect of cashew (Anacardium occidentale) biochar on soil chemical properties and agronomy of soybean (Glycine max L. merril)
    (Department of Agronomy, Nasarawa State University, Keffi., 2022-12-22) Sodah, M.G.; Jayeoba, O.J.; Amana, Sani Mathew; Jibrin, I.M.
    The experiments were conducted at the Teaching and Research Farm, Faculty of Agriculture, Nasarawa State University, Keffi, Shabu-Lafia during the 2018 and 2019 cropping seasons to evaluate the effects of different levels of biochar on soil properties, growth and yield of soybean. The experiments were laid in Randomized Complete Block Design (RCBD) with three replications. Biochar at the rates of 0, 4, 8 and 12 tons/ha were incorporated into the ridges of soybean at planting. The results showed that soil organic matter, organic carbon, total nitrogen, potassium, available phosphorus, calcium, sodium and base saturation decreased with soil layers. Soil pH (4.67 and 4.69), magnesium (1.52 and 1.62 cmol/kg), exchangeable acidity (0.67 and 0.75 cmol/kg) and cation exchange capacity (5.18 and 5.23 cmol/kg) increased with soil depth. Biochar at the rate of 12 tons/ha showed consistently the highest values of soil properties over other rates. The results also showed that biochar at the rate of 8 tons/ha recorded significantly (p<0.05) the tallest soybean plant height at 8 weeks (40.4 and 42.7 cm) and 10 (43. 0 and 49.2 cm) after planting in 2018 and 2019 cropping seasons respectively while the highest number of branches (4.5 and 4.5) was recorded in 2018 cropping season only. The results further revealed that biochar at the rate of 8 tons/ha recorded the highest weight per 100 seed (16.9 and 14.9 g) and seed yield (1304.0 and 1316.7 kg) per hectare in both cropping seasons. From the results of this study, it can be concluded that biochar at the rates of 12 and 8 tons/ha positively influenced soil and soybean plant parameters evaluated. Therefore, biochar at the rate of 8 tons/ha is considered as the optimum rate for sustainable soybean production in the study area.
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    EFFECT OF DIFFERENT RATES OF BIOCHAR ON NODULATION AND YEILD OF SOYBEAN (Glycine max.L.merill)
    (Department of Agronomy, Nasarawa State University, Keffi., 2022-08-26) Sodah, M.G.; Jayeoba, O.J.; Amana, Sani Mathew; Jibrin, I.M.
    The experiments were conducted at the Teaching and Research Farm, Faculty of Agriculture, Nasarawa State University, Shabu-Lafia Campus during 2018 and 2019 cropping seasons to evaluate the effect of different rates of biochar on nodulation and yield of soybean in Lafia, Southern Guinea Savanna of Nigeria. The experiments were laid in randomized complete block design (RCBD) with three replications. Biochar at the rates of 0, 4, 8 and 12 tons/ha was incorporated into ridges at planting. Four seeds of soybean were planted per hole at a spacing of 5cm between plants on four manually prepared ridges of 2 m long spaced at approximately 75cm. The seedlings were thinned to two plants after two weeks of planting (WAP). All data collected were subjected to analysis of variance (ANOVA) using GENSTAT statistical package while least significant difference was used to separate treatment means at 5% level of probability. The results obtained showed that biochar at the rate of 8 tons/ha significantly (p<0.05) produced the highest number of nodules (20.8 and 16.4), recorded the heaviest weight per 100 seeds (16.9 and 14.9g) and grain yield of soybean (1304.0 and 1316.7 kg/ha) in both cropping seasons. The results further revealed that the highest dose of biochar (12 tons/ha) in this study did not necessarily influence and increase any parameter tested except over the control (0.0 tons/ha) in both cropping seasons. Therefore biochar at the rate of 8 tons/ha is hereby considered to be the optimum rate for sustainable soybean production in the study area
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    Effect of Legume Inoculant and Biochar on the Growth, Nodulation and Yield of Soybean {Glycine max. L. Merrill)
    (Department of Agronomy, Nasarawa State University Keffi, 2021-10-25) Sodah, M.G.; Jayeoba, O.J.; Amana, Sani Mathew; Jibrin, Mangwa I.
    The experiments were conducted at the Teaching and Research Farm, Faculty of Agriculture, Shabu -Lafia Campus of Nasarawa State University, Keffi, during 2018 and 2019 cropping seasons to examine the effects of Legume Inoculant and Biochar on the growth, nodulation and yields of Soybean. The experiments were laid in Randomized Complete Block Design (RCBD). Biochar at the rates ofO, 4, 8 andl2 tons/ha was incorporated into the ridges before the Soybean seeds were planted as uninoculated (without legume inoculant) and inoculated (coated with legume inoculant) respectively. All data collected were subjected to analysis of variance (ANOVA) using GENSTAT Statistical Package while least significant different (LSD) was used to separate treatment means at 5% probability. The results revealed that inoculated plots recorded significantly (P<0.05) taller soybean plant, higher number of branches, nodules number per plant and grain yields (kg/ha) against uninoculated plots. The results also showed that biochar at the rate of 8 tons/ha produced significantly (P<0.05) tallest soybean plant, highest number of branches, nodules number per plant and grain yields (kglha) compared to other rates of biochar applied while the highest dose of biochar (12 tons/ha) applied did not necessarily influenced and increased Soybean growth and yield. Legume inoculant and biochar at the rate of 8 tons/ha is therefore recommended for sustainable Soybean in the study area.
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    Effect of Legume Inoculant and Biochar on the Growth, Nodulationand Yield of Soybean (Glycine max. L. Merrill)
    (Department of Agronomy, Nasarawa State University, Keffi., 2021-10-29) Sodah, M.G.; Jayeoba, O.J.; Amana, Sani Mathew; Jibrin, I.M.
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    GROWTH AND YIELD OF SOYBEAN (Glycine Max. L. Merril) AS INFLUENCED BY COMBINED APPLICATION OF BIOCHAR AND MICRONUTRIENT
    (Department of Agronomy, Nasarawa State University Keffi, 2022-03-01) Sodah, M.G.; Jayeoba, O.J.; Amana, S.M.; Jibrin, Mangwa I.
    The experiments were conducted at the Teaching and Research Farm, Faculty of Agriculture, Shabu–Lafia Campus of Nasarawa State University, Keffi, during the 2018 and 2019 cropping seasons to examine the integrated effects of biochar and micronutrient on the growth and yields of soybean. The experiments were laid in Randomized Complete Block Design (RCBD with three replications. Biochar at the rates of 0, 4, 8 and 12 tons/ha was incorporated into the ridges before planting the soybean seeds. Micronutrient at the rate of 0.0, 0.5 and 1 litre/ha was foliar applied two weeks after planting. All data collected were subjected to analysis of variance (ANOVA) using GENSTAT Statistical Package while least significant different (LSD) was used to separate treatment means at 5 % level of probability. The results revealed that biochar at the rate of 8 tons/ha, when combined with micronutrient at the rate of 0.5 litre/ha, recorded significantly (P<0.05) tallest soybean plant,the highest number of branches and nodules number per plant, heaviest weight of fresh nodules per soybean plant and grain yields (kg/ha) against other treatment combinations. The results also showed that the integration of the highest dose of biochar (12 tons/ha) with the highest dose of micronutrient (1 litre/ha) did not necessarily influence and increased soybean growth and yield parameters tested in this study. Therefore, integration of biochar at the rate of 8 tons/ha with micronutrients at the rate of 0.5 litre/ha is recommended for sustainable soybean production in the study area.
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    INFLUENCE OF PHOSPHORUS FERTILIZER ON THE YIELD AND YIELD COMPONENTS OF FOUR SOYBEAN VARIETIES AT LAFIA, SOUTHERN GUINEA SAVANNA OF NIGERIA
    (Department of Agronomy, Nasarawa State University Keffi, 2021-02-02) Jibrin, Mangwa I.; Haruna, I.M.; Ogara, I.M.; Sodah, M.G.
    Field trials were conducted during 2018 and 2019 cropping seasons at the Teaching and Research Farm of the Faculty of Agriculture, Nasarawa State University Keffi, Shabu-Lafia Campus to study the yield performance of soybean varieties under different phosphorus (P) fertilizer levels. The study area fell within the southern Guinea savanna zone of Nigeria, located on latitude 60 150 and 90 300 N and Longitude 60 300 and 110 00E. The treatments consisted of the four P fertilizer levels (0, 13, 26 and 39 kg P2O5 ha-1) and four varieties of soybean (TGX 1448-2E, TGX1987-62F, TGX 1989-19F and TGX 1835-10E). The treatment combinations were laid out in a randomized complete block design (RCBD) and replicated three times. The yield and yield components were significantly (P<0.05) affected by the treatments and each increase in P application resulted in increased number of pods plant-1, number of seeds pod-1, seed yield plant-1, 100 seed weight and seed yield hectare-1 in both cropping seasons. The results also showed that application of 39 kg P2O5 ha-1 produced significantly (P<0.05) highest in all the yield parameters measured while control plots produced lowest in both cropping seasons respectively. The results further revealed that the varietal effect of soybean on all the yield and yield components were significant (P<0.05) with TGX 1987-19F variety produced consistently highest number of pods plant-1, number of seeds pod-1, 100 seed weight and seed yield hectare-1 while TGX 1835-10E variety produced the lowest yield. In view of the results, this study, therefore recommended that soybean farmers in Lafia and its environs should apply P fertilizer at 39 kg P2O5 ha-1 and adopt TGX 1989-19F variety for profitable soybean production.