College of Agriculture & Natural Resources

URI for this communityhttps://rps.wku.edu.et/handle/123456789/45803

College of Agriculture & Natural Resource

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    EFFECT OF SEEDING AND HERBICIDE APPLICATION RATES ON GROWTH AND YIELD OF FOOD BARLEY (Hordeum vulgare L.) IN CHEHA DISTRICT, GURAGE ZONE, CENTRAL ETHIOPIA
    (wolkite university, 2024-04-03) BEHARU BEREDA SHAWYE
    Barley is a major cereal crop in the highlands of Ethiopia and serves as a vital source of food, animal feed, and alcohol. However, weed infestation poses a significant challenge, leading to substantial yield reductions. Hence, to address this issue, a study was conducted during the main cropping season in 2022 in Cheha District. The objective was to assess the effect of seeding and herbicide application rates on the growth and yield of barley. The experimental setup consisted of three seeding rates (75kg/ha, 100kg/ha, and 125kg/ha) and three herbicide rates/AXIS 50EC (0.75l/ha, 1l/ha, 1.25l/ha, twice hand weeding, weed-free, and weedy). The study utilized a randomized complete block design with a factorial arrangement, and each treatment was replicated three times. The study revealed that broadleaved weed species dominated the study area, accounting for 82.6% of relative density, while grasses constituted 17.4%. The interaction between herbicide application and seeding rates significantly (p<0.05) influenced number of days to heading and maturity, total number and productive tillers per plant, thousand grain weight, number of grains per spike, aboveground biomass yield, and grain yield of barley. The highest yield and yield components of barley were observed with a seed rate of 125 kg, combined with two hand weeding and the application of 1.25l/ha AXIS 50EC. Treatments involving the application of 0.75l/ha AXIS 50EC with75 kg seed rate resulted in the highest dry biomass weight for both broad-leaved and grass weed species. The maximum grain yield (5030 kg/ha) was achieved with twice hand weeding when sown with a seed rate of 125 kg. In contrast, the lowest grain yield (1600 kg/ha) was recorded with the application of 0.75l/ha AXIS 50EC and a seed rate of 75 kg. The economic analysis indicated that the combination of a 125 kg seed rate with the application of 1.25l/ha AXIS 50EC produced the highest net benefit and MRR (604.01%). In conclusion, sowing barley at a seed rate of 125 kg and applying AXIS 50EC at 1.25l/ha resulted in optimal growth and grain yield for the crop. Since the experiment was conducted in one location and season, it should be repeated over season and location for further recommendation.
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    EFFECT OF PRE-EMERGENCE HERBICIDES AND THEIR COMBINATIONS ON WEEDS INFESTATION YIELD COMPONENTS AND YELD OF CHICKPEA (Cicer arietum L.) AT EZHA WOREDA GURAGE ZONE, SOUTH ETHIOPIA.
    (wolkite university, 2021-06-01) TADELE BEKELE TABOGE
    Chickpea (Cicer arietinum L.) is one of the most important pulses cultivated in Ethiopia. Chickpea is the third important food legume both in area and production after common beans and faba beans in Ethiopia. This is below the potential yield of chickpea at research center as well other major chickpea producing zones in Ethiopia. Among the factors responsible for low yields in chickpea; weeds is the major one. Hence, field experiment was conducted to investigate the effect of herbicides and their combination on yield component and yield of chickpea (Cicer arietum L.). The experiment was laid out in a Randomized Complete Block Design and replicated three times. Pre-emergence herbicides (Pendimethalin and S-metolachlor) were applied alone at different rate, their reduced dose combination with herbicides as well as supplemented with one hand weeding, only one hand weeding, and two hand weeding; completely weed free and weedy treatments. Applying the herbicides alone at different rate reduced density and dry matter of the weeds in chickpea as compared with control. The result indicated S-metolachlor was the most effective herbicide for controlling weed species presented in the experimental site as compared with Pendimethalin in relation with application at different rate alone. Among the herbicides applied S-metolachlor at 1.0kg ha-1 supplemented by one hand weeding at five weeks after emergence gave the highest yield components and yield as well as net benefit of chickpea (Cicer arietum L.). However; weed free, Hand weeding at 2 and 5 WAE treatments was the most effective treatment for controlling the weeds and increasing the chickpea yield compared with other treatments. But weed control through hand weeding is costly and non-available at critical time. Therefore; it is suggested when labours are not easily available, applying S-metolachlor at 1kg ha-1 supplemented by one hand weeding at five weeks after emergence is the best option of effective chickpea production. However, further study has to be done under different seasons and locations to exploit the recommendation of the present stud
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    EFFECT OF SEEDING AND HERBICIDE APPLICATION RATES ON GROWTH AND YIELD OF FOOD BARLEY (Hordeum vulgare L.) IN CHEHA DISTRICT, GURAGE ZONE, CENTRAL ETHIOPIA
    (wolkite university, 2024-06-01) BEHARU BEREDA SHAWYE
    Barley is a major cereal crop in the highlands of Ethiopia and serves as a vital source of food, animal feed, and alcohol. However, weed infestation poses a significant challenge, leading to substantial yield reductions. Hence, to address this issue, a study was conducted during the main cropping season in 2022 in Cheha District. The objective was to assess the effect of seeding and herbicide application rates on the growth and yield of barley. The experimental setup consisted of three seeding rates (75kg/ha, 100kg/ha, and 125kg/ha) and three herbicide rates/AXIS 50EC (0.75l/ha, 1l/ha, 1.25l/ha, twice hand weeding, weed-free, and weedy). The study utilized a randomized complete block design with a factorial arrangement, and each treatment was replicated three times. The study revealed that broadleaved weed species dominated the study area, accounting for 82.6% of relative density, while grasses constituted 17.4%. The interaction between herbicide application and seeding rates significantly (p<0.05) influenced number of days to heading and maturity, total number and productive tillers per plant, thousand grain weight, number of grains per spike, aboveground biomass yield, and grain yield of barley. The highest yield and yield components of barley were observed with a seed rate of 125 kg, combined with two hand weeding and the application of 1.25l/ha AXIS 50EC. Treatments involving the application of 0.75l/ha AXIS 50EC with75 kg seed rate resulted in the highest dry biomass weight for both broad-leaved and grass weed species. The maximum grain yield (5030 kg/ha) was achieved with twice hand weeding when sown with a seed rate of 125 kg. In contrast, the lowest grain yield (1600 kg/ha) was recorded with the application of 0.75l/ha AXIS 50EC and a seed rate of 75 kg. The economic analysis indicated that the combination of a 125 kg seed rate with the application of 1.25l/ha AXIS 50EC produced the highest net benefit and MRR (604.01%). In conclusion, sowing barley at a seed rate of 125 kg and applying AXIS 50EC at 1.25l/ha resulted in optimal growth and grain yield for the crop. Since the experiment was conducted in one location and season, it should be repeated over season and location for further recommendation.
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    EFFECT OF SEEDING AND HERBICIDE APPLICATION RATES ON GROWTH AND YIELD OF FOOD BARLEY (Hordeum vulgare L.) IN CHEHA DISTRICT, GURAGE ZONE, CENTRAL ETHIOPIA
    (Wolkite Universty, 2024-06) BEHARU BEREDA SHAWYE
    Barley is a major cereal crop in the highlands of Ethiopia and serves as a vital source of food, animal feed, and alcohol. However, weed infestation poses a significant challenge, leading to substantial yield reductions. Hence, to address this issue, a study was conducted during the main cropping season in 2022 in Cheha District. The objective was to assess the effect of seeding and herbicide application rates on the growth and yield of barley. The experimental setup consisted of three seeding rates (75kg/ha, 100kg/ha, and 125kg/ha) and three herbicide rates/AXIS 50EC (0.75l/ha, 1l/ha, 1.25l/ha, twice hand weeding, weed-free, and weedy). The study utilized a randomized complete block design with a factorial arrangement, and each treatment was replicated three times. The study revealed that broadleaved weed species dominated the studyarea, accounting for 82.6% of relative density, while grasses constituted 17.4%. The interaction between herbicide application and seeding rates significantly (p<0.05) influenced number of days to heading and maturity, total number and productive tillers per plant, thousand grain weight, number of grains per spike, aboveground biomass yield, and grain yield of barley. The highest yield and yield components of barley were observed with a seed rate of 125 kg, combined with two hand weeding and the application of 1.25l/ha AXIS 50EC. Treatments involving the application of0.75l/ha AXIS 50EC with75 kg seed rate resulted in the highest dry biomass weight for both broad-leaved and grass weed species. The maximum grain yield (5030 kg/ha) was achieved with twice hand weeding when sown with a seed rate of 125 kg. In contrast, the lowest grain yield (1600 kg/ha) was recorded with the application of 0.75l/ha AXIS 50EC and a seed rateof 75 kg. The economic analysis indicated that the combination of a 125 kg seed rate with the application of 1.25l/ha AXIS 50EC produced the highest net benefit and MRR (604.01%). In conclusion, sowing barley at a seed rate of 125 kg and applying AXIS 50EC at 1.25l/resulted in optimal growth and grain yield for the crop. Since the experiment was conduction one location and season, it should be repeated over season and location for further recommendation.