Phosphorus Critical Level and Optimum Nitrogen Rate Determination on Teff for Sustainable Soil Fertility Management and Economical Teff Production at Lume Area of Oromia Region, Ethiopia

Nutrient management is fundamental activity of the grower for crop production and productivity increments on different soil types. Accordingly, soil test based teff  response P fertilizer calibration study  was made from 2010-2012 at Lume district on eutric vertisol,  because soil nutrient calibration study is pertinent to increase the use efficiency of inorganic fertilizer like DAP and Urea. The objective of the experiment was to determine economically optimum N, and to determine Phosphorus critical (Pc) and Phosphorus requirement factor for teff at Lume district. The experiment were contained factorial combination of four  levels of N (0, 46, 92 and 138 Kg ha-1) and P (0, 23, 46 and 92 Kg ha-1) chemical fertilizer laid out in randomized complete block design with two replications that had 40m2 plot area for each. After 21 days intensive soil samples were collected from each plot for the determination of available P in ppm.  Plant height, biomass and grain yield data were collected from 9m2. The collected data were subjected to two way factorial analysis of variance (ANOVA) using the General Linear Model (GLM) procedures of SAS (SAS, 2001). Comparison of treatment means was performed using Fisher’s Least Significant Difference test at P < 0.05 probability level.  The application of N indicated that significant difference between plant height, biomass and grain yield teff. However the application of P was not significant on plant height, straw yield and grain yield at Lume. The interaction effect of N and P application was not significant to grain yield, plant height and straw yield correlation.  Furthermore, the study was revealed that phosphorus critical (Pc) point for teff was 13, and phosphorus requirement factor was also 3.65. In addition, a partial budget analysis made using the annual average teff grains prices showed 46 kg ha-1 gave a marginal rate of return of 271.95%, which are above acceptable minimum rate of return. Keywords: Calibration, P- critical, P- requirement factor, partial budget, Acceptable minimum rate of return

Evaluation of the Effect of Salt Affected Soil on Selected Hydraulic Properties of Soils in Meki Ogolcha Area in East Showa Zone of Oromia Region, Ethiopia

Saturated hydraulic conductivity and infiltration rate measurement was made on soils irrigated by water from three sources and rain fed cultivated field to determine effect of soil salinity on hydraulic conductivity. Accordingly, surface and sub surface layers of field 1 and surface layers of field 3 and 4 were classified into low infiltration rate where as the surface and sub surface layers of field 2 were classified into medium infiltration rate. On the other hand, soil saturated hydraulic conductivity (Ks) of all layers of P1 were grouped into moderate permeability classes with some variation in value. The layers 1 and 2 of P2 were grouped into moderately rapid class whereas, layers 3 and 4 were grouped in to moderately slow class. Hence, the study result indicated that with similar sand and clay content in respective layers of profile 1 and 2, the permeability relatively reduces as alkalinity increases. Keywords: Salt affected soil, permeability, hydraulic conductivity, infiltration rat

Phosphorus Critical Level and Optimum Nitrogen Rate Determination on Bread Wheat for Sustainable Soil Fertility Management and Economical Production at Lume Area of Oromia Region, Ethiopia

Nutrient management is indispensable for crop production and productivity increments on different soil types.  Therefore soil nutrient calibration study is pertinent to increase efficiency use of inorganic fertilizer like DAP and Urea. Based on this understanding site specific soil test based crop response studies for P on bread wheat was made from year 2010-2012 at Lume district. The objective of the experiment was to determine economically optimum N, Phosphorus critical (Pc) and Phosphorus requirement factor. The experimental treatments was  developed by factorial combination of four  levels of N (0, 46, 92 and 138 Kg ha-1) and P (0, 23, 46 and 92 Kg ha-1) chemical fertilizer that laid out in randomized complete block design with two replications and 40m2 plot area for each. After 21 days, intensive composite soil samples were collected from each plot for the determination of available P in ppm.  Plant height, biomass and grain yield data were collected from 9m2. The collected data were subjected to two way factorial analysis of variance (ANOVA) using the General Linear Model (GLM) procedures of SAS (SAS, 2001). Comparison of treatment means was performed using Fisher’s Least Significant Difference test at P < 0.05 probability level.  The application of N indicated that significant difference between plant height, biomass and grain yield of bread wheat. However the application of P was not significant on plant height, straw yield and grain yield at Lume whereas the interaction effect of N and P application on grain yield, plant height and straw yield correlation was significant.  Furthermore, the study was revealed that phosphorus critical (Pc) point for bread wheat was 19, and phosphorus requirement factor were also 4.92. In addition, a partial budget analysis made using the annual average bread wheat grains prices showed 46 kg N ha-1 gave a marginal rate of return of 187%, which is above acceptable minimum rate of return. Keywords: P- critical, P- requirement factor, partial budget, Acceptable minimum rate of retur

Knowledge of Pregnant Women on Mother-to-Child Transmission of HIV in Meket District, Northeast Ethiopia

Knowledge of pregnant women on the three periods of mother-to-child transmission (MTCT) of HIV has implication for child HIV acquisition. This study aims to assess the knowledge of pregnant women on mother-to-child transmission of HIV and to identify associated factors in Meket district, northeast Ethiopia. Logistic regression models were fitted to identify associated factors. Adjusted odds ratios (AOR) with 95% confidence intervals (CI) were used to determine the presence and strength of association. About onefifth (19%) of women were knowledgeable on mother-to-child transmission of HIV (95% CI: 15.5%, 22.4%). Being urban resident (AOR: 2.69, 95% CI: 1.48, 4.87), having primary education (AOR: 2.41, 95% CI: 1.03, 5.60), reporting receiving information on HIV from health care providers (AOR: 3.24, 95% CI: 1.53, 6.83), having discussion with partner about mother-to-child transmission of HIV (AOR: 2.64, 95% CI: 1.59, 4.39), and attending antenatal care (AOR: 5.80, 95% CI: 2.63, 12.77) were positively associated with increased maternal knowledge of mother-to-child transmission of HIV. Knowledge of mother-to-child transmission of HIV among pregnant women was low. Providing information, especially for rural women and their partners, is highly recommended. Background Vertical transmission of Human Immunodeficiency Virus (HIV) is still a major challenge in the world, especially in developing countries Without any intervention, the risk of a baby getting HIV infection from an infected mother ranges from 15% to 25% in the developed nations and from 25% to 35% in developing countries. HIV transmission rate and timing are estimated to be 5% to 10% during pregnancy, 10% to 15% during delivery and 5% to 20% through breast-feeding. In general mother to child transmission contributes 15-45% of HIV acquisition for children The national adult HIV prevalence in Ethiopia is 1.2% It is estimated that 138, 906 children less than 15 years are living with HIV in 2014. There are an estimated 3,886 new infections each year due to mother-to-child transmission According to Ethiopian Demographic and Health Survey (EDHS) report, about three-quarters of reproductive aged women know that HIV can be transmitted to a baby through breastfeeding Maternal knowledge on MTCT is a corner stone of effective implementation of the World Health Organization (WHO) recommendation of the four-pronged approach to reduce mother-to-child transmission of HIV Despite the large challenge of vertical transmission of HIV, there were also limited community-based studies on women knowledge on mother-to-child transmission of HIV. Hence, this study attempts to fill the gap through assessing the level of knowledge of MTCT of HIV and its associated factors at Meket district, Northeast Ethiopia. Methods Study Design, Population, and Setting. A communitybased cross-sectional study design was conducted in Meket district, northeast Ethiopia, from March 8 to 21, 2014. Meket district is located 665 km north of Addis Ababa, the Ethiopian capital city. The district has an estimated population size of 254,520 of which 59,939 are reproductive aged women, and an estimated 8,246 were pregnant women. Those pregnant women are living in Meket district were constituted our study population. Sample Size and Sampling Procedure. Sample size was determined using single population proportion formula with the assumptions of 95% level of confidence, 12% proportion of knowledgeable women on MTCT of HIV Operational Definitions. In the present study, pregnant woman was regarded as being knowledgeable on MTCT if she correctly identified the three different modes/periods of MTCT of HIV; otherwise she was classified as nonknowledgeable. Comprehensive knowledge of HIV was also measured if a pregnant woman correctly identified three modes of transmission of HIV (unsafe sexual practice, blood transfusion, and MTCT) and recognized two common misconceptions. Comprehensive knowledge about HIV/AIDS was measured after posing the following questions: (1) knowing that condom use and limiting sex partners to one uninfected partner are HIV prevention methods, (2) being aware that a healthy-looking person can have HIV, and (3) rejecting the two most common local misconceptions, that is, HIV/AIDS can be transmitted through mosquito bites and by supernatural means in Ethiopia Data Collection Procedures. Data were collected using pretested, structured, and interviewer administered questionnaire. The questionnaire was prepared after reviewing relevant literatures. Five female nurses supervised by two BSc health professionals collected the data. For eligible women who were not at home during our first attempt, the interviewers revisited the participant's home at least two times before excluding the participant. Training was given to the data collectors about informed consent, techniques of interviewing, data collection procedures, and different sections of the questionnaire. Supervisors and principal investigators checked the questionnaire on its completeness and consistency on the daily basis. Data Processing and Analysis. The data were entered into EPI info version 3.5.3 statistical software and then sorted, cleaned, and analyzed by using SPSS version 20 statistical package. Descriptive statistics were done to describe the study participants in relation to relevant variables. Both bivariate and multiple logistic regression analyses were carried out to see the effect of sociodemographic factors, maternal condition factors, and other factors on the knowledge of MTCT of HIV and to control cofounding. Odds ratios with 95% CI were computed to identify factors associated with mothers' MTCT knowledge. Ethical Consideration. Ethical clearance was obtained from the Research and Ethical Review Committee (REC) at the Institute of Public Health, College of Medicine and Health Science of University of Gondar. Permission letter was secured from Meket District Health Office. Written informed consent was taken from each study participant after reading the consent form. The purpose and benefit of the study and their right to withdraw at any time were also delivered to each participant prior to the interview. Confidentiality of the information was maintained throughout by using anonymity identifiers, keeping their privacy by interviewing them individually. Results Sociodemographic Characteristics of Pregnant Women. Five hundred forty-two pregnant women participated in the study (97.5% response rate). The majority (85.4%) were rural dwellers. The mean age of the study participants was 29.45 years (SD = 5.4). Four hundred and sixty (84.9%) were married, 196 (36.2%) were able to read and write, and nearly four-fifths (80.1%) were homemaker ( Journal of Pregnancy 3 Knowledge of Pregnant Women on MTCT. One hundred three (19%) (95% CI: 15.5%, 22.4%) were knowledgeable on MTCT of HIV. Most (84.5%) heard about mother to child transmission of HIV. Among those who heard MTCT, more than two-thirds (70.7%) mentioned labor/delivery as a time of HIV transition from mother to child. 225 (41.5%) pregnant women identified at least two periods of motherto-child transmission of HIV. Nearly two-thirds (63.8%) had comprehensive knowledge on HIV/AIDS, and another equivalent proportion of women heard about PITC Factors Associated with Knowledge of Pregnant Women on MTCT of HIV. In multivariable analysis, higher levels of maternal education status, having received information about HIV from health professionals, and reported discussion of MTCT and ANC with their partners were positively associated with knowledge of mother-to-child transmission of HIV. Those women who live in the urban settings were about three more like to be knowledgeable than their rural counterparts (AOR: 2.69, CI (1.48, 4.87)). Those literate mothers were about three times more likely to be knowledgeable than who did not read and write (AOR: 3.25, CI (1.55, 6.78)). Likewise, a woman was 2.41 times more likely to be knowledgeable if she had completed primary school as compared to those who did not read and write (AOR: 2.41, CI (1.04, 5.60)). Pregnant women who received information on HIV from health care providers were about three times more likely to be knowledgeable than women who had not received information (AOR: 3.24, CI (1.54, 6.83)). Women who had discussions with their partner were more likely to be knowledgeable than those who had not (AOR: 5.80, CI (2.63, 12.78)). Correspondingly, mothers who discussed MTCT with their partners were more likely to be knowledgeable than those who had not (AOR: 2.64, CI (1.59, 4.39)) Discussion Being knowledgeable on MTCT of HIV and the fact that the risk of transmission can be reduced by using antiretroviral drugs are critical in reducing MTCT of HIV. This can contribute greatly towards the achievement of the Millennium Development Goals related to HIV. This study revealed that 19% (95% CI: 15.5%, 22.4%) of respondents were knowledgeable on MTCT of HIV. This result is in line with a cross-sectional study conducted at Temeke District Hospital, Dar Es Salaam (15.7%) In the present study, nearly two-thirds of pregnant women had comprehensive knowledge on HIV/AIDS which is higher than studies in Yaoundé (23%) Knowledge of pregnant women on MTCT of HIV among pregnant women was significantly varied based on their place of residence. Those pregnant women residing in urban areas were more likely to be knowledgeable when compared to the rural residents. This finding is in line with studies conducted at Gondar and Hawassa towns in Ethiopia In this study, pregnant women who discussed and received information about HIV/AIDS from health care providers were more knowledgeable. They were found to be three times more likely to be knowledgeable than those who had not. Spouse discussion on antenatal care follow-up was also positively associated with knowledge of MTCT. Those pregnant women who had discussions with their partners were six times more likely to be knowledgeable than those who had not discussed the issue. This is similar to reports from other studies Pregnant women may receive information from a variety of sources about health services. Spouses having delivered information and participated in discussions about MTCT of HIV with their wives (40.6%) were associated with good knowledge of the subject. Accordingly, pregnant women who had discussion with their partners were more than two times more likely to have good knowledge of MTCT. This might be because partner discussion in this regard could enhance their knowledge. This study tried to assess pregnant women who did not attend health care facilities for ANC and HIV concerning their knowledge about MTCT of HIV. However, because of financial and time constraints, this study did not include the knowledge part of prevention of mother-to-child transmission of HIV. Conclusions Despite many efforts, the knowledge of pregnant women on mother-to-child transmission of HIV is low. If pregnant woman resides in urban environment, she attends school, if she receives information on HIV from health care providers, and if she attends antenatal care, she is more likely to be knowledgeable on MTCT of HIV. Strengthening women education and by reaching previously inaccessible parts of the community, integration of HIV, prevention of MTCT, and ANC service, is highly recommended. Moreover, strengthening discussion of MTCT with spouses is important

Genetic diversity in tef [Eragrostis tef (Zucc.) Trotter]

Tef [Eragrostis tef (Zucc.) Trotter] is a cereal crop resilient to adverse climatic and soil conditions, and possessing desirable storage properties. Although tef provides high quality food and grows under marginal conditions unsuitable for other cereals, it is considered to be an orphan crop because it has benefited little from genetic improvement. Hence, unlike other cereals such as maize and wheat, the productivity of tef is extremely low. In spite of the low productivity, tef is widely cultivated by over six million small-scale farmers in Ethiopia where it is annually grown on more than three million hectares of land, accounting for over 30% of the total cereal acreage. Tef, a tetraploid with 40 chromosomes (2n = 4x = 40), belongs to the family Poaceae and, together with finger millet (Eleusine coracana Gaerth.), to the subfamily Chloridoideae. It was originated and domesticated in Ethiopia. There are about 350 Eragrostis species of which E. tef is the only species cultivated for human consumption. At the present time, the gene bank in Ethiopia holds over five thousand tef accessions collected from geographical regions diverse in terms of climate and elevation. These germplasm accessions appear to have huge variability with regard to key agronomic and nutritional traits. In order to properly utilize the variability in developing new tef cultivars, various techniques have been implemented to catalog the extent and unravel the patterns of genetic diversity. In this review, we show some recent initiatives investigating the diversity of tef using genomics, transcriptomics and proteomics and discuss the prospect of these efforts in providing molecular resources that can aid modern tef breeding

Yield response of tef (Eragrostis tef) to nitrogen, phosphorus, potassium and sulphur under balanced fertilization on Vertisols in different agroecological zones of Ethiopia

Nutrient deficiency is a major constraint in tef (Eragrostis tef (Zucc.) Trotter) production in Ethiopia. In the past, a blanket recommendation of nitrogen (N) and phosphorus (P) fertilizers has been applied regardless of the diversity of agroecological zones and soil types. As crop responses declined with widespread deficiencies of nutrients, farmers have lost interest in applying the recommended fertilizer rates. The present study was conducted with the objective of quantifying the response of tef to different rates of N, P, potassium (K) and sulphur (S) fertilizers under balanced application of the nutrients other than the one under investigation. In each region, the same set of trials was implemented on farmers’ fields for three years. All trials were implemented on Vertisols across four agroecological zones (AEZs). The treatments were seven rates of N, six rates each of P and S and eight rates of K with a basal application of zinc (Zn) and boron (B). The results showed that the most limiting nutrient is N followed by P in each agroecological zone on the Vertisols. There was clear evidence of increases in grain yield with increasing rates of N and P, but the responses to K and S rates did not follow clear trends across AEZs. With balanced application of the other nutrients, 23–92 kg N ha−1 increased grain yield by 11–92%, while 10–40 kg P ha−1 increased yields by 12–33% over the control in the different AEZs. Based on results from dose–response models, it is concluded that the agronomic optimum rates for tef production are 69 kg N, 20 kg P, 30 kg K and 10 kg S ha−1 in the cool sub-moist mid-highlands and the tepid sub-humid mid highlands; 92 kg N, 30 kg P, 15 kg K and 10 kg S ha−1 in tepid moist mid highlands but 69 kg N, 10 kg P, 15 kg K and 10 kg S ha−1 in the tepid sub-moist mid highlands. On Vertisols not covered by this study, these recommendations should be subject to appropriate soil and plant analysis. We also recommend further studies on the nutrient requirement of tef on other soil types and AEZs

The COVID-19 pandemic and healthcare systems in Africa:A scoping review of preparedness, impact and response

BACKGROUND: The COVID-19 pandemic has overwhelmed health systems in both developed and developing nations alike. Africa has one of the weakest health systems globally, but there is limited evidence on how the region is prepared for, impacted by and responded to the pandemic. METHODS: We conducted a scoping review of PubMed, Scopus, CINAHL to search peer-reviewed articles and Google, Google Scholar and preprint sites for grey literature. The scoping review captured studies on either preparedness or impacts or responses associated with COVID-19 or covering one or more of the three topics and guided by Arksey and O’Malley’s methodological framework. The extracted information was documented following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension checklist for scoping reviews. Finally, the resulting data were thematically analysed. RESULTS: Twenty-two eligible studies, of which 6 reported on health system preparedness, 19 described the impacts of COVID-19 on access to general and essential health services and 7 focused on responses taken by the healthcare systems were included. The main setbacks in health system preparation included lack of available health services needed for the pandemic, inadequate resources and equipment, and limited testing ability and surge capacity for COVID-19. Reduced flow of patients and missing scheduled appointments were among the most common impacts of the COVID-19 pandemic. Health system responses identified in this review included the availability of telephone consultations, re-purposing of available services and establishment of isolation centres, and provisions of COVID-19 guidelines in some settings. CONCLUSIONS: The health systems in Africa were inadequately prepared for the pandemic, and its impact was substantial. Responses were slow and did not match the magnitude of the problem. Interventions that will improve and strengthen health system resilience and financing through local, national and global engagement should be prioritised

The COVID-19 pandemic and healthcare systems in Africa : a scoping review of preparedness, impact and response

Funding Information: Funding GAT was supported with funding from the Australia National Health and Medical Research Council (NHMRC) Investigator Grant #1195716.Peer reviewedPublisher PD

Monitoring changes in malaria epidemiology and effectiveness of interventions in Ethiopia and Uganda: Beyond Garki Project baseline survey.

Published onlineJournal ArticleResearch Support, Non-U.S. Gov'tBACKGROUND: Scale-up of malaria interventions seems to have contributed to a decline in the disease but other factors may also have had some role. Understanding changes in transmission and determinant factors will help to adapt control strategies accordingly. METHODS: Four sites in Ethiopia and Uganda were set up to monitor epidemiological changes and effectiveness of interventions over time. Here, results of a survey during the peak transmission season of 2012 are reported, which will be used as baseline for subsequent surveys and may support adaptation of control strategies. Data on malariometric and entomological variables, socio-economic status (SES) and control coverage were collected. RESULTS: Malaria prevalence varied from 1.4 % in Guba (Ethiopia) to 9.9 % in Butemba (Uganda). The most dominant species was Plasmodium vivax in Ethiopia and Plasmodium falciparum in Uganda. The majority of human-vector contact occurred indoors in Uganda, ranging from 83 % (Anopheles funestus sensu lato) to 93 % (Anopheles gambiae s.l.), which is an important factor for the effectiveness of insecticide-treated nets (ITNs) or indoor residual spraying (IRS). High kdr-L1014S (resistance genotype) frequency was observed in A. gambiae sensu stricto in Uganda. Too few mosquitoes were collected in Ethiopia, so it was not possible to assess vector habits and insecticide resistance levels. ITN ownership did not vary by SES and 56-98 % and 68-78 % of households owned at least one ITN in Ethiopia and Uganda, respectively. In Uganda, 7 % of nets were purchased by households, but the nets were untreated. In three of the four sites, 69-76 % of people with access to ITNs used them. IRS coverage ranged from 84 to 96 % in the three sprayed sites. Half of febrile children in Uganda and three-quarters in Ethiopia for whom treatment was sought received diagnostic tests. High levels of child undernutrition were detected in both countries carrying important implications on child development. In Uganda, 7-8 % of pregnant women took the recommended minimum three doses of intermittent preventive treatment. CONCLUSION: Malaria epidemiology seems to be changing compared to earlier published data, and it is essential to have more data to understand how much of the changes are attributable to interventions and other factors. Regular monitoring will help to better interpret changes, identify determinants, modify strategies and improve targeting to address transmission heterogeneity.UK aid (PPA

Correction to: Monitoring changes in malaria epidemiology and effectiveness of interventions in Ethiopia and Uganda: Beyond Garki Project baseline survey

This is the final version. Available on open access from BMC via the DOI in this recordThe article to which this is the correction is available in ORE at http://hdl.handle.net/10871/19983Correction to: Malar J (2015) 14:337 https://doi.org/10.1186/s12936-015-0852-7 Please be advised that one of the author names is incorrectly spelled in the published article: ‘Irene Kyomuhagi’ should be ‘Irene Kyomuhangi’. The corrected name can be found in the author list of this article