Abstract: Low soil fertility is one of the production constraints of common bean in the study area. Hence, a field experiment was conducted in Adola sub-site of Bore Agricultural Research Centre during the 2016 main cropping season to assess the effect of blended NPS rates on the yield and yield components of common bean varieties and to identify economically feasible rates of blended NPS that increase the productivity of the common bean varieties. The factors studied were six rates of blend...
Abstract: Optimum rate of phosphorus fertilization and use of adaptable variety are important factors in increasing grain yield. Thus, study on the response of wheat varieties to phosphorus fertilizer rates was conducted in 2015 main cropping season at two locations in Shashemene district of Oromia, Ethiopia. The objective was to determine the economically feasible rate of P fertilizer and to assess the effect of P on yield components and yield of wheat varieties. The treatments were three b...
Abstract: Tef is the major crop grown in Ethiopia and the study area. However, its productivity is low mainly due to limited use of improved varieties and low soil fertility as result of intensive soil erosion and long history of cultivation. Therefore ,a field experiment was carried out on a farmer’s field at Gelan Akaki district during the 2018 main cropping season (from July to November 2018) to assess the response of tef varieties to blended NPSB fertilizer rates and to identify the ec...
Abstract: Ethiopian smallholder farmers are the most vulnerable group of societyto the effects of climate variabilitybecause they have nature dependent economic system. This study examinedtheeffects of climate variability on five major cereals yield,crop income and rural labor displacementin thecentral highlands and Arsi grain plough farming systems of Ethiopia. The seven round unbalanced panel data (1994-2009) collected by Ethiopian Rural Household Survey from 15 kebeles of the seven farmin...
Abstract: The agriculture sector is the most important segment in the Ethiopian economy. This is because of its contribution to the national GDP (38.5%) where crop accounted for 27.4%, and provides employment for 72.7% of the total population. Despite efforts made to commercialize and transform Ethiopian agriculture from subsistence to production of high value crops, the sector’s performance has been below expectations. In light of the problems and the research gaps identified, this study ...
Abstract: One of the basic agronomic practicesto improve the yield potential of chickpea isidentification of optimum plant spacing. Thus, field experiment was conducted to assess the effect of inter row and intra-row spacing on the growth, yield components and yield of chickpea at Chiro District. The treatment consisted of four inter- row (20, 30, 40 and 50 cm) and four intra- row (5, 10,15 and 20 cm) spacing. The experiment was laid out in a randomized complete block design (RCBD) in factor...
Abstract: Maize is the major food crop in western Ethiopia and is produced in a number of agro- ecologies. However, its productivity is constrained by low rates and inappropriate timing of N fertilizer applications. Therefore, a field experiment was conducted during the 2018 main cropping season in Nedjo district of western Ethiopia on a farmer’s field. The objectives of the study were to determine the effects of time and rate of nitrogen fertilizer application on growth, yield components ...
Abstract: Common bean is one of the most economically important pulse crops cultivated in eastern Ethiopia. However, its average yield reported at national level remains far below the potential yield to be attained. This is partly due to low soil fertility management and inappropriate agronomic packages. Hence, this experiment was conducted to assess the effect of phosphorous rates on growth, yield and yield components of improved common bean varieties and to estimate the cost benefit of Pho...
Abstract: Common bean production is constrained partly due to lack of recommendation on the optimum plant density and rate of phosphorus fertilizer. In view of this, a field experiment was conducted in Dangur district during 2016 cropping season to determine the effect of phosphorus rate and plant density on yield related traits and yield of common bean. The experiment consisted of five level of phosphorus (0, 23, 46, 69 and 92 kg P2O5 ha-1) and four levels of plant densities (333333, 250000...
Abstract: Common bean production is severely infested by weeds in Wolaita Zone, Southern Ethiopia. Field experiment was conducted to assess the integrated effect of different weed management practices and herbicides on the growth and yield of common bean and to evaluate the economic feasibility of weed management practices in common bean in 2014 at Wolaita Sodo. The experiment comprises of fifteen treatments which included two herbicides (s-metolachlor and pendimethalin) applied as pre-emerg...
Abstract: Cabbage (Brassica oleracea L.) is a member of the cole crops, and it is an important fresh and processing vegetable crop in most of the countries of the world. However, yield of the crop is often constrained by low and imbalanced nutrient supply in the country at large and in Gudji Zone in particular. Therefore, this study was conducted at the Bore Agricultural Research Center (BoARC) during the period from July 1, 2014 to December 2, 2014 main cropping season to assess the effects...
Abstract: Poor soil fertility, lack of indigenous soil populations of rhizobia strains and lack of adequate information on the use of Rhizobium inoculants and phosphorus fertilizer are the major production constraints that limit the potential yield of faba bean. Thus, field experiment was conducted to assess the effect of Rhizobium inoculation and phosphorus fertilizer rates on yield components and yield of faba bean; and to estimate the economically feasible combination of inoculants and ph...
Abstract: Studies were carried out to establish the role and significance of rice stem borers as pests of rice crop in irrigated low land rice ecosystems in Tanzania; and to evaluate the effectiveness of some management options against the pest. A survey by means of structured questionnaire was init ially used to assess the farmer’s perception on rice stem borers and their management practices in three wards of Kilombero district in Morogoro Region, namely, Mkula, Sanje and Signali. This w...
Abstract: Cowpea is one of the 14 species of grain legumes. It rewards insects by producing nectar and it advertises to the pollinators by producing floral volatiles. The volatiles act as cues that guide insect pollinators in terms of pollen and nectar. Floral volatile quality also influences the efficiency of pollination. Genetic manipulations involving selection of varieties with high quality floral volatiles and nectar can therefore increase pollination efficiency and hence cowpea yields....
Abstract: A study was carried out to isolate and identify the chemicals from sorghum and maize that determine the oviposition and feeding responses, respectively, of the moth and larvae of Chilo partellus a serious pest of these crops. Studies were carried out on a resistant and a susceptible cul ti var of maize (MP 704 resistant; INBRED A susceptible) as well as sorghum (IS 1044 resistant; IS 18363 susceptible). The allelochemicals were extracted sequentially with petroleum ether, ethyl ace...