36 research outputs found
Replication Data for: Response of Maize to blended fertilizer
No full textMaize grain and bio-mass yield were increased by application of different rates of blended fertilizer
Grain Yield and Yield Components Response to Omission of Nutrients on Maize (Zea Mays L.) at Kersa District, Jimma Zone, Ethiopia
No full textThe nutrient supply capacity of a soil varies with soil types as well as with farmers’ crop management practices. Yet fertilizer application in Ethiopia is based on regional recommendations, which do not take in to account the variability in soil types as well as farmers’ crop management practices. Thus, site specific fertilizer recommendation that considers soil variability and difference in farmers’ crop management practices is quite important. A field experiment was conducted with an objective to identify which of macronutrients N, P and K are limiting maize grain and yield components in the study area during 2017/18 cropping season. The experiments were laid out in a completely randomized block design with six treatments replicated across six farmers’ fields in Kersa district, Jimma zone, south western Ethiopia. The trial consisted of six treatments, which include the unfertilized control, PK, NK, NP, NPK and NPK+. Maize grain yield was the highest for the NPK treatment followed by NPK+ treatment but lowest for the unfertilized control and N omitted plots. The magnitude of grain yield reduction due to nutrient omission followed the trend of N omission> P omission> K omission. In the absence of N, P, and K maize grain yields were significantly lower compared to that of NPK and NPK+ treatments. From among the different treatments, NPK gave the highest grain yield(9185 kg ha-1), while the control treatment gave the lowest grain yield (1861.3 kg ha-1).Grain yield levels obtained for different fertilizer treatments were ranked as NPK > NPK+>NP>PK>NK, illustrating that N deficiency was the most yield limiting nutrient followed by P and K in that order. Therefore, the use of appropriate balanced fertilizers should be used for efficient nutrient uptake which ultimately increases maize productivity. Keywords: Maize, Nitrogen, Nutrient omission, Phosphorus, Potassium DOI: 10.7176/JEES/11-8-04 Publication date:August 31st 202
Response of maize (zea mays l.) To omission of nutrients At kersa district, jimma zone, south western Ethiopia
No full textAppropriate fertilization practices based on actual limiting nutrient and crop requirement for a
given crop is economic and judicious use of fertilizers for sustainable crop production. Balanced
nutrition must be achieved to optimize maize productivity. A field experiment was conducted
with an objective to identify which of macronutrients N, P and K are limiting maize grain and
yield components in the study area during 2017/18 cropping season. The experiments were laid
out in a completely randomized block design with six treatments replicated across six farmers’
fields in Kersa district, Jimma zone, south western Ethiopia. The trial consisted of six treatments,
which include; control, PK (-N), NK (-P), NP (-K), NPK and NPK+ CaMgSZnB. Among the six
treatments, -N, -P, and -K were set to estimate the inherent N, P and K supplying capacity of soil
respectively. The yield and soil fertility gap between a full NPK fertilizer plot and a fertilizer
omission plot was used as a good diagnostic tool to assess the extent of macronutrient
limitations. Average maize yields were the highest in the NPK treatment, followed by those in the
NPK+CaMgSZnB plots among all treatments. Maize yield, a significantly increasing trend over
time was found in the NPK-treated plots and a decreasing trend in the PK and NK-treated plots.
In the absence of N or P, maize yields were significantly lower than those in the NPK treatment.
A balanced use of NPK has a remarkable influence on maize growth and yield. Among different
treatments NPK combinations, provided the highest grain yield of 9185 kg ha-1
andthe lowest
(1861.3 kg ha-1
) was obtained from control plots. Nitrogen, Phosphorus and Potassium are
macronutrients that play a major role in plant growth and crop yields. Yield responses to
fertilization were ranked NPK > NPK+CaMgSZnB >NP>PK>NK, illustrating that N deficiency
was the most limiting condition in maize production, followed by P and K deficiencies. As
compared with the NP treatment, the NPK treatment was significantly increased maize yields by
15.4%. However, maize yields under the NPK treatments were statistically better than those in
the NPK+CaMgSZnB treatment. Based on the results, it was concluded that the inherent N, P
and K supplying capacity of soil is very low. Therefore, use of appropriate balanced fertilizers
should be used for efficient nutrient uptake which ultimately increases maize productivity
The Project of Productivity Increasing on the laser workplace in Schiedel, a.s. company
No full textDiplomová práce se zabývá zkoumáním možností pro zvýšení výkonnosti pracoviště laseru ve společnosti Schiedel, a.s. Teplice. Stěžejní částí práce je analýza ztrátových časů spolu s navržením nápravných opatření na jejich minimalizaci či odstranění. V teoretické části autorka vysvětluje metody, jež jsou východiskem pro část praktickou. Praktická část obsa-huje implementaci prvního pilíře totálně produktivní údržby na pracovišti laseru, závěr práce pak prezentuje přínosy ze zavedení programu autonomní údržby na tomto pilotním pracovišti.The final thesis outlines results of a research project undertaken in Schiedel a.s. Teplice. This research aimed to improve the performance and availability of lasers at this site. The key focus of this project is the analysis of time-outs together with proposals of corrective measures to minimise down time thus maximising availability. In the theoretical part of the thesis, the author explains the theoretical background and the methodologies that form the basis for the practical part. The practical component of the project includes implementation of the first pillar of total productive maintenance at the laser workplace. The conclusions presented in the thesis focus on the benefits derived from the introduction of an autono-mous maintenance programme at this pilot site.Ústav průmyslového inženýrství a informačních systémůobhájen
Communities' perceptions towards cervical cancer and its screening in Wolaita zone, southern Ethiopia: A qualitative study.
No full textBackgroundCervical cancer is a malignant neoplasm from cells originating in the cervix uteri. Any woman who is sexually active is at risk of getting HPV. Women in sub-Saharan Africa region have higher chance of developing the disease. There are nearly 26 million Ethiopian women who are over the age of 15 and believed to be at risk of getting HPV. Regrettably, Ethiopian women typically present for cervical cancer care at a late stage in the disease, where treatment is most ineffective.ObjectivesTo explore communities' perceptions of cervical cancer and screening among women in Wolaita zone, southern Ethiopia.MethodsA qualitative research using focused group discussions and in-depth interviews was used to explore communities' perceptions of cervical cancer and screening among women in Wolaita zone, southern Ethiopia from March 2018-November 2019. The study participants were men, women and communities who were residents of the study settings and were not health professionals. All focused group discussions (FGDs) and key informant interviews were transcribed and entered into Microsoft Word and thematic content analysis was done.ResultsA total of fifty-nine participants participated in both FGD (three with men and six with women) and in-depth interviews (IDIs). Most participants have not heard about cervical cancer but know cancer in general. Participants mentioned that the disease usually relates to many births and unprotected sexual intercourse but none mentioned HPV infection. Most of the participants perceive that cervical cancer is incurable and assume that it could be prevented but they think they are not vulnerable to the disease and screening is not necessary.ConclusionThis study indicates that rural communities in the zone had limited knowledge about cervical cancer and even less about risk factors, screening, treatment and prevention. There is a great need for cancer education and prevention in Ethiopia
Studium asociačního chování amphifilních kopolymerů v roztocích obsahujících nízkomolekulární látky pomocí počítačových simulací.
No full textNázev: Studium asociačního chování amfifilních kopolymerů v roztocích obsa- hujících nízkomolekulární látky pomocí počítačových simulací Autor: Karel Šindelka Department: Přírodovědecká fakulta, Univerzita Karlova Supervisor: Doc. Ing. Zuzana Limpouchová, Csc. Abstrakt Dizertační práce se zabývá studiem elektrostatické asociace v polymerních roz- tocích obsahujících blokové polyelektrolytové (PE) kopolymery spolu se surfak- tanty, neutrálními homopolymery nebo jinými opačně nabitými polyelektrolyty. Bylo ukázáno, že tvorba asociátů závisí nejen na kooperativních elektrostatických interakcích mezi opačně nabitými PE řetězci, ale i na charakteru amfifilních in- terakcí polyelektrolytů a na kompatibilitě kopolymerních bloků. Polyelektrolyty s nekompatibilními bloky tvoří jasně definované struktury s hydrofobním jádrem a rozpustnou slupkou, zatímco v případě polyelektrolytů s kompatibilními bloky vznikají velké nejasně definované " crew-cut" agregáty. V nestechiometrických směsích PE kopolymerů s nekompatibilními bloky jsou agregované nanočástice menší než ve stechiometrických směsích a tyto nanočástice jsou navíc nabité. Nestabilita větších agregátů závisí na způsobu zavedení pře- bytku náboje: největší...Title: The study of the association behaviour of the amphiphilic copolymers in solutions containing low molar compounds by means of computer simulations. Author: Mgr. Karel Šindelka Department: Faculty of Science, Charles University Supervisor: Doc. Ing. Zuzana Limpouchová, Csc. Abstract This doctoral thesis focuses on the study of electrostatic self- and co-assembly in complex polymer solutions containing polyelectrolyte (PE) block copolymers together with surfactants, neutral homopolymers, or oppositely charged PEs using the dissipative particle dynamics (DPD). It was shown that the electro- static self-assembly depends not only on the cooperative interactions of oppo- sitely charged PE chains, but also on the amphiphilicity of PE species or on the polymer block compatibility, among other properties. PEs with incompatible blocks create well-defined core-shell structures, while large ill-defined crew-cut aggregates form from PEs with compatible blocks In non-stoichiometric mixtures of PEs with incompatible blocks, co-assembled nanoparticles are smaller than in stoichiometric mixtures and are charged. The destabilization of larger aggregates depends on how the PE charge surplus is introduced: the effect is strongest when the density of the surplus PE charge on the PE chains is increased and weakest when the...Katedra fyzikální a makromol. chemieDepartment of Physical and Macromolecular ChemistryPřírodovědecká fakultaFaculty of Scienc
Socio-demographic characteristics of participants, Wolaita Zone, Southern Ethiopia, 2019.
No full textSocio-demographic characteristics of participants, Wolaita Zone, Southern Ethiopia, 2019.</p
Análisis Atmosférico PIRAGUA [Dataset]
No full text[EN] It contains a netCDF file by variable and hydrological year with daily data for the variables Liquid Precipitation, Total Precipitation, Relative Humidity, Wind Speed and Temperature. Hourly data are available by contacting the author.
[ES] Contiene un fichero netCDF por variable y año hidrológico con los datos diarios de las variables Precipitación líquida, Precipitación total, Humedad relativa, Velocidad del Viento y Temperatura. Los datos horarios están disponibles contactando con el autor.[EN] Daily gridded dataset of screen-level meteorological variables created with the aim to force hydrological and land-surface models. The grid has a spatial resolution of 2.5 km and was created using the SAFRAN algorithm. SAFRAN uses optimal interpolation to combine a first guess (ERA5) and meteorological observations from AEMET and Météo-France. The dataset contains the following variables: precipitation, wind speed, temperature, potential evapotranspiration (Penman-Monteith) and relative humidity.
The dataset was generated within the project EFA210/16 PIRAGUA ("Evaluation and prospective of the water resources of the Pyrenees in a context of climate change, and adaptation measures with impact on the territory").[ES] Conjunto de datos diarios en retícula de variables meteorológicas cerca de la superficie creado con el objetivo de forzar modelos hidrológicos y de superficie terrestre (LSM). La malla tiene una resolución de 2,5 km, y se creó utilizando el algoritmo SAFRAN. SAFRAN utiliza interpolación óptima para combinar una primera estimación (ERA5) y las observaciones meteorológicas de AEMET y Météo-France. El conjunto de datos contiene las siguientes variables: precipitación, velocidad del viento, temperatura, evapotranspiración potencial (Penman-Monteith) y humedad relativa.
El conjunto de datos se generó en el proyecto EFA210/16 PIRAGUA ("Evaluación y prospectiva de los recursos hídricos de los Pirineos en un contexto de cambio climático, y medidas de adaptación con impacto en el territorio").[FR] Ensemble de données maillées de variables météorologiques proches de la surface créées dans le but de forcer des modèles hydrologiques et de surface terrestre (LSM). Le maillage a une résolution de 2,5 km et a été créé à l'aide de l'algorithme SAFRAN. SAFRAN utilise une interpolation optimale pour combiner une première estimation (ERA5) et des observations météorologiques d'AEMET et de Météo-France. L'ensemble de données contient les variables suivantes : précipitations, vitesse du vent, température, évapotranspiration potentielle (Penman-Monteith) et humidité relative.
Le jeu de données a été généré dans le cadre du projet EFA210/16 PIRAGUA ("Evaluation et prospective des ressources en eau des Pyrénées dans un contexte de changement climatique, et mesures d'adaptation ayant un impact sur le territoire").This dataset was developed within the project EFA210/16 PIRAGUA (“Evaluación y prospectiva de los recursos hídricos de los Pirineos en un contexto de cambio climático, y medidas de adaptación con impacto en el territorio / Evaluation et prospective des ressources en eau des Pyrénées dans un contexte de changement climatique, et mesures d’adaptation avec un impact sur le territoire”), co-funded by the European Regional Development Fund (ERDF) through the Interreg V-A Spain France Andorra program (POCTEFA 2014-2020) (65%) and the project’s partners: CSIC, UPV/EHU, UB, OE, IGME, CNRS, BRGM, INRAE and OBSA (35%).N
Water cycle and water resources of the Pyrenees under climate change: the PIRAGUA datasets
No full text1 .pdf con la presentación de los autores (8 Pags.- Fots.- Figs.- Maps.); 1 .pdf con el resumen oficial de la presentación publicado por EGU, organizador del evento y editor. © Author(s) 2022. This work is distributed under the Creative Commons Attribution 4.0 License.The Pyrenees range is a transboundary mountain region shared by Spain, France and Andorra. As
many other mountain regions, the Pyrenees host the upper catchments and recharge zones of the
region's main river basins and aquifers. Therefore, it is the main source of water resources that
are used in a much larger area that includes important urban concentrations and highly
productive rural areas. This territory and its water resources are particularly vulnerable to the
consequences of climate change. The PIRAGUA project (2018-2021, https://www.opccctp.
org/piragua), funded by FEDER through the POCTEFA Program of the EU, addressed the
characterization of the hydrological cycle of the Pyrenees in a climate change context, in order to
improve the territories’ adaptation capacity. The goals of the project were to unify and
homogenize the existing information, prospect future scenarios, develop indicators of change, and
propose adaptation strategies with impact on the territory. The project results were compiled in a
series of regional datasets, and are available through the geo-portal of the Pyrenees Climate
Change Observatory (https://opcc-ctp.org/geoportal). These include the following resources:
PIRAGUA_resources stores information related to water resources use, exploitation and
management; PIRAGUA_indicators contains daily streamflow and aquifer level indicators from
observed series during the historical period (1950-2019); PIRAGUA_flood includes the number and
classification of flood events, at the municipal level; PIRAGUA_atmos_analysis contains observationbased
meteorological data suited for hydrological simulation, for the historical period (1981-2010);
PIRAGUA_atmos_climate is a statistical downscaling of six global climatic models, for the historical
and future periods (1981-2100); finally, two datasets include the hydrological water cycle
components derived from simulations with different hydrological models (SWAT, SASER, GISBALAN
and RECHARGE) and climate forcings: PIRAGUA_hydro_analysis (1981-2010) and
PIRAGUA_hydro_climate (1981-2100). This contribution is devoted to describing these datasets and
the tools to explore them and acquire the data, and to provide examples of the main results
regarding the climate change effects on the Pyrenees’ water resources.This presentation was developed within the project EFA210/16 PIRAGUA (“Evaluación y prospectiva de los recursos hídricos de los Pirineos en un contexto de cambio climático, y medidas de adaptación con impacto en el territorio / Evaluation et prospective des ressources en eau des Pyrénées dans un contexte de changement climatique, et mesures d’adaptation avec un impact sur le territoire”), co-funded by the European Regional Development Fund (ERDF) through the Interreg V-A Spain France Andorra program (POCTEFA 2014-2020) (65%) and the project’s partners: CSIC, UPV/EHU, UB, OE, IGME, CNRS, BRGM, INRAE and OBSA (35%).N
