College of Agriculture & Natural Resources

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College of Agriculture & Natural Resource

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    EFFECT OF RHIZOBIUM INOCULATION (MB003) AND NPSB FERTILIZER RATES ON GROWTH YIELD AND YIELD COMPONENTS OF MUNG BEAN (Vigna radiate (L.) WILCZEK) VARIETIES IN MISRAKMESKAN DISTRICT EASTERN GURAGE ZONE
    (wolkite university, 2024-05-03) MOHAMMED WULCHAFO BADKARO
    Lack of adequate information on the use of Rhizobium strain and nitrogen-phosphorus-sulfurboron (NPSB) fertilizer rates are the major yield limiting factors for producing mung bean in the study area. Therefore, the study was conducted with the objective of evaluating the nodulation, growth and yield responses of two varieties of mung bean (Vigna radiate (L.) Wilczek) at different rates of NPSB fertilizer and Rhizobium inoculates. A field experiment was carried out during the main cropping season of 2021/22 at Misirak Meskan District in Farmers Training Center (FTC). The treatments combinations were two levels of Rhizobium inoculation (with and without), two mung bean varieties N-26 (Rassa) and NVL-1(Nassa) and four levels of NPSB fertilizer (0, 50, 100, 150 kg ha-1 ). The experiment was arranged in a 2×2×4 factorial combination in randomized complete block design with three replications. Soil samples were collected from the experimental field at (0-30cm depth) before planting and after harvest to determine selected soil physicochemical properties. Data on growth, nodulation, yield and yield components were recorded and subjected to Analysis of Variance (ANOVA). Results on soil physicochemical properties analyzed before planting and after harvest showed significant differences due to the combined effects of NPSB fertilizers and Rhizobium inoculation. Crop phenology (days to 50% flowering and days to physiological maturity), growth (plant height, number of primary and secondary branches, shoot fresh and dry weight, root dry weight), and nodulation (number of nodules, nodule fresh and dry) weight of mung bean varieties were significantly affected by NPSB fertilizer rates and Rhizobium inoculation. Moreover, the interaction effects of NPSB fertilizer rates, Rhizobium inoculation and mung bean varieties showed significant effects on number of pods per plant, number of seeds per pod, a hundred seed weight, harvest index, grain yield and above ground biomass. The highest mean value of grain yield(2105.77 kg ha-1 ) was obtained from a combined effect of 150 kg NPSB ha-1 and Rhizobium inoculation from variety N-26 which resulted in 61.28% followed by (2078.90 kg ha-1 ) which was increased by 62.07% at the rate of 100 kg NPSB ha-1 increase over the control (1290.37 kg ha-1 ). Furthermore, the number of seeds per plant, a hundred seeds weight, above ground dry biomass and HI of mung bean were recorded the highest mean values (607.33), (7.50 g), (4241.67 kg ha-1 ) and 0.483, respectively at the rate of 150 kg NPSB ha-1 fertilizer with a Rhizobium inoculation. The partial budget analysis revealed that the maximum (ETB 108600.6 ha-1 ) net benefit was obtained from combined application of rhizobium inoculation and 100 kg NPSB ha-1 from variety N-26 with MRR of 10130% And minimum (ETB 68572.8 ha-1 ) net benefit was obtained from the control. A net benefit advantage of 63.14% (ETB 68572.8 ha-1 ) when compared with the maximum and minimum net benefit. Hence, Rhizobium inoculation with application of 100 kg NPSB ha-1 could be tentatively recommended for mung bean production in Misirak Meskan area. However, the experiment should be repeated over years and locations to provide valid recommendations appropriate for the study site
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    EFFECT OF RHIZOBIUM INOCULATION (MB003) AND NPSB FERTILIZER RATES ON GROWTH YIELD AND YIELD COMPONENTS OF MUNG BEAN (Vigna radiate (L.) WILCZEK) VARIETIES IN MISRAKMESKAN DISTRICT EASTERN GURAGE ZONE
    (wolkite university, 2024-05-02) MOHAMMED WULCHAFO BADKARO
    Lack of adequate information on the use of Rhizobium strain and nitrogen-phosphorus-sulfurboron (NPSB) fertilizer rates are the major yield limiting factors for producing mung bean in the study area. Therefore, the study was conducted with the objective of evaluating the nodulation, growth and yield responses of two varieties of mung bean (Vigna radiate (L.) Wilczek) at different rates of NPSB fertilizer and Rhizobium inoculates. A field experiment was carried out during the main cropping season of 2021/22 at Misirak Meskan District in Farmers Training Center (FTC). The treatments combinations were two levels of Rhizobium inoculation (with and without), two mung bean varieties N-26 (Rassa) and NVL-1(Nassa) and four levels of NPSB fertilizer (0, 50, 100, 150 kg ha-1 ). The experiment was arranged in a 2×2×4 factorial combination in randomized complete block design with three replications. Soil samples were collected from the experimental field at (0-30cm depth) before planting and after harvest to determine selected soil physicochemical properties. Data on growth, nodulation, yield and yield components were recorded and subjected to Analysis of Variance (ANOVA). Results on soil physicochemical properties analyzed before planting and after harvest showed significant differences due to the combined effects of NPSB fertilizers and Rhizobium inoculation. Crop phenology (days to 50% flowering and days to physiological maturity), growth (plant height, number of primary and secondary branches, shoot fresh and dry weight, root dry weight), and nodulation (number of nodules, nodule fresh and dry) weight of mung bean varieties were significantly affected by NPSB fertilizer rates and Rhizobium inoculation. Moreover, the interaction effects of NPSB fertilizer rates, Rhizobium inoculation and mung bean varieties showed significant effects on number of pods per plant, number of seeds per pod, a hundred seed weight, harvest index, grain yield and above ground biomass. The highest mean value of grain yield(2105.77 kg ha-1 ) was obtained from a combined effect of 150 kg NPSB ha-1 and Rhizobium inoculation from variety N-26 which resulted in 61.28% followed by (2078.90 kg ha-1 ) which was increased by 62.07% at the rate of 100 kg NPSB ha-1 increase over the control (1290.37 kg ha-1 ). Furthermore, the number of seeds per plant, a hundred seeds weight, above ground dry biomass and HI of mung bean were recorded the highest mean values (607.33), (7.50 g), (4241.67 kg ha-1 ) and 0.483, respectively at the rate of 150 kg NPSB ha-1 fertilizer with a Rhizobium inoculation. The partial budget analysis revealed that the maximum (ETB 108600.6 ha-1 ) net benefit was obtained from combined application of rhizobium inoculation and 100 kg NPSB ha-1 from variety N-26 with MRR of 10130% And minimum (ETB 68572.8 ha-1 ) net benefit was obtained from the control. A net benefit advantage of 63.14% (ETB 68572.8 ha-1 ) when compared with the maximum and minimum net benefit. Hence, Rhizobium inoculation with application of 100 kg NPSB ha-1 could be tentatively recommended for mung bean production in Misirak Meskan area. However, the experiment should be repeated over years and locations to provide valid recommendations appropriate for the study site
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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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    GROWTH AND YIELD RESPONSE OF COMMON BEAN (Phaseolus vulgaris L.) VARIETIES TO NPSB BLENDED FERTILIZER RATES AT EZHA DISTRICT, SOUTHERN ETHIOPIA
    (wolkite university, 2022-05-03) DESALEGN KEBEDE ADEBA
    The current average yield of common beans is far less than the national attainable yield in the study area. This is partially due to low soil fertility management and a lack of improved varieties. A field experiment was conducted to evaluate the effect of blended NPSB rates on yield and yield components of common bean varieties, to determine the optimum rate of blended NPSB fertilizer required and the best variety for optimum growth and yield of common bean, and to investigate economically feasible rates of blended NPSB fertilizer for common bean production. The experiment was conducted at Ezha district during 2022 cropping seasons. Treatments consisted of factorial combinations of four common bean varieties (Sab632, Ser119, Ser125, and Bz2) with four NPSB fertilizer rates (0, 50, 100, and 150 kg ha-1 ) laid out in a randomized complete block design with three replications. Data was collected on growth and yield and yield components and analyzed using SAS (version 9.3). The result showed that NPSB blended fertilizer rate and varieties significantly influenced most of the tested parameters of common bean. The highest days to flowering (51.0), nodule dry weight (3.106), number of pods per plant (17.60), above ground dry biomass (6131.7 kg ha-1 ), and grain yield (2862.7 kg ha-1 ) were recorded due to the application of 150 kg of NPSB ha-1 for variety Ser119. The highest days to maturity (99.33) and plant height (83.73cm) were recorded from variety Ser125 with a 150 kg NPSB fertilizer application rate. The maximum number of total nodules (73.67), effective nodules (43.55) and the highest harvest index (48.89%) were recorded from variety Ser119 with a 100 kg ha-1 NPSB fertilizer application rate. With a 150 kg ha-1 NPSB fertilizer application rate, variety Sab632 produced the highest hundred seed weight (42.30). The highest number of seeds per pod (3.76) was recorded from variety Ser125. Net benefit of 81,123.3 birr ha-1 was obtained from the treatment combination of 100 kg NPSB ha-1 application rate for variety Ser119. Thus, based on the study results, the application of 100 kg NPSB ha-1 with variety Ser119 could be recommended to enhance the productivity with the highest net benefits of common bean in the study area. The experiment was done only xiii at one location and one season therefore it would have to be replicated across location and season to get best conclusive result and sound full recommendation for specific area in order to assure finding of the current study
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    GROWTH AND YIELD RESPONSE OF COMMON BEAN (Phaseolus vulgaris L.) VARIETIES TO NPSB BLENDED FERTILIZER RATES AT EZHA DISTRICT, SOUTHERN ETHIOPIA
    (WOLKITE UNIVERSITY, 2022-04) DESALEGN KEBEDE ADEBA
    The current average yield of common beans is far less than the national attainable yield in the study area. This is partially due to low soil fertility management and a lack of improved varieties. A field experiment was conducted to evaluate the effect of blended NPSB rates on yield and yield components of common bean varieties, to determine the optimum rate of blended NPSB fertilizer required and the best variety for optimum growth and yield of common bean, and to investigate economically feasible rates of blended NPSB fertilizer for common bean production. The experiment was conducted at Ezha district during 2022 cropping seasons. Treatments consisted of factorial combinations of four common bean varieties (Sab632, Ser119, Ser125, and Bz2) with four NPSB fertilizer rates (0, 50, 100, and 150 kg ha-1) laid out in a randomized complete block design with three replications. Data was collected on growth and yield and yield components and analyzed using SAS (version 9.3). The result showed that NPSB blended fertilizer rate and varieties significantly influenced most of the tested parameters of common bean. The highest days to flowering (51.0), nodule dry weight (3.106), number of pods per plant (17.60), above ground dry biomass (6131.7 kg ha-1), and grain yield (2862.7 kg ha-1) were recorded due to the application of 150 kg of NPSB ha-1 for variety Ser119. The highest days to maturity (99.33) and plant height (83.73cm) were recorded from variety Ser125 with a 150 kg NPSB fertilizer application rate. The maximum number of total nodules (73.67), effective nodules (43.55) and the highest harvest index (48.89%) were recorded from variety Ser119 with a 100 kg ha-1 NPSB fertilizer application rate. With a 150 kg ha-1 NPSB fertilizer application rate, variety Sab632 produced the highest hundred seed weight (42.30). The highest number of seeds per pod (3.76) was recorded from variety Ser125. Net benefit of 81,123.3 birr ha-1 was obtained from the treatment combination of 100 kg NPSB ha-1 application rate for variety Ser119. Thus, based on the study results, the application of 100 kg NPSB ha-1 with variety Ser119 could be recommended to enhance the productivity with the highest net benefits of common bean in the study area. The experiment was done only xii at one location and one season therefore it would have to be replicated across location and season to get best conclusive result and sound full recommendation for specific area in order to assure finding of the current study.