http://ir.bdu.edu.et/handle/123456789/13995 2001-01-13T05:52:19Z 2001-01-13T05:52:19Z Abere Mulsew http://ir.bdu.edu.et/handle/123456789/15445 2023-07-03T12:43:27Z 2023-02-01T00:00:00Z

Effect of Lime,Cattle Manure and Blended Npsb Fertilizer Rates on yield and yield Components of Tef [Eragrastis tef (Zucc. )Trotter } in koga Irrigation Scheme,Northwestern,Ethiopia Abere Mulsew Tef [Eragrostis tef (Zucc.) Trotter] is one of the major staple crops grown in North West Amhara National Regional State; however, its productivity is low due to an increase in soil acidity and poor soil fertility problems. Thus, soil amelioration wth integrated use of organic and inorganic fertilizers with lime on acid soils is vital to improve soil properties and crop yield. Field experiment was conducted to investigate the effects of integrated commercial lime, NPSB blended fertilizer and cattle manure on the yield of tef at Koga Irrigation Scheme, Mecha district, during the 2021 main rainy season. Factorial combination of two levels of lime (0 and 2.5 t ha -1 ), five levels of NPSB blended fertilizer (0, 50, 100, 150 and 200 kg ha -1 ) and two levels of cattle manure (0 and 5 t ha ) treatments were laid out in a randomized complete block design (RCBD) with three replcations. All data were collected timely following their standard methods and procedures. The collected crop data were subjected to analysis of variance using R software. Mean separation for significant treatments was done using LSD. The results showed that the interaction effects of lime, cattle manure and blended NPSB had significant effects on phenology, growth and yield parameters. Crop yield and yield components were increased with cattle manure, NPSB blended fertilizer and lime rates. The maximum straw yield (5949.02 kg ha ) was recorded by the application of 2.5 t ha -1 lime, 5 t ha -1 cattle manure and 200 kg ha NPSB blended fertilizer. The combined application of 2.5 t ha -1 lime, 5 t ha -1 cattle manure and 150 kg ha -1 NPSB blended fertilizer resulted in the highest grain yield (2580.78 kg ha ), biomass yield (8425.53 kg ha -1 ), panicle weight (2.4 g/p) and harvest index (30.63%). This combined also increased the grain yield of tef by 200.9 % and 37.8% when compared to the treatments with zero and the sole applications of recommended NPSB blended fertilizer (100 kg ha -1 ), respectively. The economic analysis revealed that the combined application of 2.5 t ha -1 lime, 150 kg ha -1 NPSB blended fertilizer and 5 t ha -1 cattle manure yielded a maximum net profit of 131383.3 ETB ha -1 with an acceptable marginal rate of return (676 %). The increase in most growth and yield related parameters raised together with the increase in application rate up to 150 kg ha -1 NPSB blended fertilizer, high rates of lime (2.5 t ha -1 ) and cattle manure (5 t ha -1 ) and decreased when NPSB blended fertilizer more than 150 kg ha -1 . This shows that application of lime and cattle manure more than the tested rates with NPSB blended fertilizer rate may be increased the yield of tef in the study area. Therefore, further experiment will be mandatory through raising the rates of lime and cattle manure more than the tested rates in the previous trial and repeate over years and across locations to establish the best recommendation. -1 -1 -1 -1

2023-02-01T00:00:00Z Eyob Woldeyes http://ir.bdu.edu.et/handle/123456789/15443 2023-07-03T12:10:04Z 2023-02-01T00:00:00Z

Response of Bread Wheat (Triticum Aestivum L.) To Seed And Nitrogen Fertilizer Rates At Farta District, South Gondar Administration Zone, Northwestern Ethiopia Eyob Woldeyes Bread wheat (Triticum aestivum L.) is one of the most economically important cereal crops cultivated in north west Ethiopia. However ,appropriate seeding and nitrogen fertilizer rate have been among the most limiting factors for wheat production in North-western Ethiopia. A field experiment was conducted to investigate the effect of different seeding rate and level of nitrogen fertilizer at Debre Tabor cereal research sub center during 2021/22 main cropping season. The treatment consisted of factorial combinations of four seeding rates (100, 150, 200 and 250 kg/ha) and five elemental nitrogen fertilizer levels (0, 50, 100, 150 and 200 kg /ha) in randomized complete block design with three replications. Data on yield and yield component parameters of bread wheat were collected. These data were subjected to SAS-9.4 software to compute the analysis of variance and correlation analysis. Results of the study revealed that most yield and yield component of wheat were significantly affected by the main and interaction effects of (seed and nitrogen fertilizer rates). Significantly higher plant height(1067cm), spike length(13.0cm), number of spikelet/spike (13), 1000 kernels weight(45gm), number of kernels/ spike(52), grain yield(6200Kg/ha), biological yield(10128Kg/ha) and harvest index(51.7) were recorded when wheat was planted at seeding rate of 200 kg/ha with 150 kg/ha nitrogen level. Similarly the partial budget analysis indicated that 200 kg ha -1 seed rate with 150 kg N ha -1 gave the highest net return (94947.90ETB) with acceptable marginal rate of return 3994%. Thus, based on the result of the study we can conclude that planting of wheat at 200kgha -1 of seed with150 kg of N ha is recommended for the farmers for increasing wheat production in the study area. However, to reach at conclusive recommendation the experiment should be repeated across different locations and years. -1

2023-02-01T00:00:00Z Mekides Belete http://ir.bdu.edu.et/handle/123456789/15442 2023-07-03T11:59:12Z 2023-02-01T00:00:00Z

Response of Quality Protein Maize (Zea Mays L.) Varieties to Intra Row Spacing Under Irrigation Condition at Mecha District, Northwestern Ethiopia Mekides Belete Maize is a staple food crop for small holder farmers in Northwestern part of Ethiopia. Cultivation of QPM provides an opportunity to farmers to produce nutritionally superior maize grains and fill nutrition gaps for those who don’t have access for protein derived from animals and animal products. However, QPM is not common for most farmers in Amhara region and has no production packages in Amhara region. Therefore, agronomic trials like intra row spacing is very crucial to come up with optimum production that will agitate farmers to accept the technology and produce QPM in their system. Hence, a field experiment was conducted to determine the effects of intra row spacing on different varieties of QPM in Koga Irrigation Scheme, North Mecha district of Amhara Region during 2021/22 under irrigation. The experiment consisted of the factorial combinations of three QPM varieties (Melkassa 1Q, Melkassa 6Q and MHQ-138) and four intra-row spacing (20, 25, 30 and 35 cm). The treatments were arranged in factorial combination in Randomized Complete Block Design with three replications. Data on phenology, vegetative growth, yield and yield component parameters were collected timely as per their respective standard procedures. Analysis of variance for the collected data was carried out using SAS version 9.4. The ANOVA also had shown that intra row spacing and QPM varieties influenced most of the tested parameters. Accordingly, the main effects of varieties were highly significantly affected days to 50% tasseling, days to 50% silking, days to maturity, leaf area index and plant height. Similarly, highly significant effect was observed in interaction effect of variety and intra-row spacing on ear height, biological yield, number of kernel per cob, thousand grain weight and grain yield. Results revealed that, higher grain yield and biological yield were obtained from melkassa 6Q sown at 30 cm intra row spacing which was 6.37 t ha−1 and 15.60 t ha−1, respectively. While the lowest grain yield (3.67 t ha−1) was obtained from 20 cm intra row spacing and melkassa 1Q variety. Moreover, planting Variety MHQ-138 at the same intra row spacing gave the 2nd higher grain yield. Therefore, it can be concluded that planting melkassa 6Q QPM variety at the intra-row spacing of 30 cm gave maximum grain yield and would be recommended for the mid altitude area under irrigation condition. For better confirmation of the results, this one year experiment needs to be repeated at multi-locations and in different seasons.

2023-02-01T00:00:00Z Endeshew Assefa http://ir.bdu.edu.et/handle/123456789/15162 2023-03-09T06:43:45Z 2022-08-01T00:00:00Z

Competition Indices and Bio-Agroeconomic Efficiency in Additive Series Relay Intercropping of Grass Pea (Lathyrus Sativus L.) With Low Land Rice (Oryza Sativa L.) in Fogera District, North-Western Ethiopia Endeshew Assefa Intercropping of cereals with legumes is an important strategy for the development of sustainable crop production systems, because of yield advantages, greater yield stability and lower risks of crop failure that are often associated with monoculture. A field experiment was conducted during 2021/2022 main cropping season at fogera national rice research and training center with the objective of determining the effect of additive series relay intercropping of grass pea with lowland rice on the agronomic parameters of the component crops, the land use efficiency and the profitability of each intercropping system as compared with sole cropped. The experiment consisted of a factorial combination of four seed proportion of grass pea (25%, 50%, 75% and100% of the recommended seed rate of sole grass pea) intercropped with full seed rate of rice in four Rice: grass pea spatial arrangements (1R:1GP, 2R:1GP, 3R:1GP and; R and GP mixed relay intercropping system). The treatments were arranged in Randomized Complete Block Design with three replications. Data on growth and yield parameters of the component crops were collected and analyzed using SAS-JMP-16 software. Results revealed that seed proportion of grass pea and spatial arrangement and their interaction significantly affected only the agronomic attributes of grass pea when grass pea was relay intercropped with rice in additive series. Land use efficiency in terms of land equivalent ratio and Area Time Equivalent Ratio showed more than unity in all intercropping treatments. Maximum land equivalent ratio (1.99), area time equivalent ratio (1.33) and total land output yield (9887kg -1 ) was higher when full seed rate of rice was relay intercropped with 50% seed proportion of grass pea in 3:1 spatial arrangement. The highest positive monetary advantage Index and the lowest competitive ratio was recorded in 3:1 and 2:1 spatial arrangement in the same cropping system. Indeed, according to the partial budget analysis, 50% of grass pea planted with rice in 3:1 spatial arrangement gave the highest net benefit (33, 5176.79) with the acceptable marginal rate of return (21,428%). Thus, it can conclude that relay intercropping of 50% of grass pea with full seed rate of rice (additive series) in rice-grass pea intercropping at 3:1 spatial arrangement would be recommended for maximum land use efficiency and profitability in the study area and areas with similar agro-ecology

2022-08-01T00:00:00Z