Browsing by Author "Ibrahim, A.J."

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    Effect of Halosulfuron Herbicide on Growth and Yield of three Varieties of Cowpea (Vigna unguiculata L. Walp) in Lafia, Nasarawa State
    (Department of Agronomy, Nasarawa State University Keffi, 2021-10-25) Mashat, I.M.; Ajayi, F.A.; Ibrahim, A.J.; Mwoltit, A.D.; Jibrin, Mangwa I.
    An experiments was conducted at the teaching and research farm of Faculty of Agriculture Shabu-Lafia campus (08°,33IN and 08°, 32!E), Nasarawa State Unversity Keffi, during the wet seasons of 2018 and 2019 to study the influence of halosulfuron herbicide on the growth and yield of three varieties of cowpea. The experiment consisted of two improved varieties (Fuampeal, Fuampea2) and one local (40days) variety and halosulfuron herbicide (applying once and zero application). The six treatment combinations with three replications were laid in a Complete Randomized Block Design. Data were collected on growth parameters such as plant height and number of branches and yield parameters such as 100 seeds weight, grain yield, total biological yield, haulms weight, and harvest index. Analysis was carried out using Genstat statistical package. The results obtained showed that cowpea Fuampea2 produced significantly (P<0.05) higher growth and yield values than cowpea Fuampeal and the local variety evaluated. The results also indicated that plots treated with halosulfuron herbicide recorded significantly (P<0.05) higher values in all the growth and yield parameters measured than the zero herbicide application in both cropping seasons respectively. This study therefore recommended Fuampea2 variety and the use of post-emergence herlosulfuron herbicide to cowpea growers in Lafia, Nasarawa State for maximum productivity.
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    SEED YIELD AND ECONOMIC RETURNS OF SOYBEAN (Glycine max. L. Merill) AS INFLUENCED BY PHOSPHORUS FERTILIZER RATES AND VARIETIES AT LAFIA, NASARAWA STATE
    (Department of Agronomy, Nasarawa State University Keffi, 2021-01-10) Jibrin, Mangwa I.; Haruna, I.M.; Ogara, I.M.; Ibrahim, A.J.; Adamu, M.B.
    Field trials were conducted during the wet seasons of 2018 and 2019 at the Research Farm of Faculty of Agriculture Shabu, Lafia Campus, Nasarawa State University, Keffi, Nigeria (08.33°N and 08.33°E) to study the yield and economic returns of soybean as influenced by phosphorus fertilizer rates and variety. The experiment consisted of four levels of phosphorus in the form of single super phosphate (0, 13, 26 and 39 kg P ha-1) and six varieties of soybean (TGX 1985-10F, TGX 1987-10F, TGX 1448-2E, TGX 1987-62F, TGX 1989-19F and TGX 1835-10E). The twenty four treatment combinations were laid out in a Randomized Complete Block Design (RCBD) with three replications to form seventy two (72) plots. The results of this study showed that each increase in the rate of applied phosphorus significantly (P<0.05) increased seed yield per hectare of soybean in both years. The results also indicated that the application of 39 kg P ha-1 produced significantly (P<0.05) the highest seed yield (kg ha-1) and gross margin of N 147,850 compared to other rates of applied phosphorus. The results further revealed that TGX 1989-19F variety produced significantly (P<0.05) the highest seed yield (kg ha'1) and higher economic returns of soybean compared to other varieties evaluated. In view of the results, this study therefore recommended phosphorus fertilizer at 39 kg ha'1 and TGX 1989-19F variety for higher yield and better economic returns to soybean farmers at Lafia, Nasarawa State.