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study the concentrations of ni, zn, cd and pb in the tigris river in the city...
Four heavy metals were selected to estimate their concentrations on the Tigris River in the Baghdad area, the water samples collected from three stations on the river represented the northern, central and southern Baghdad, using apolyethylene bottles of 2-liter for the period from March 2010 until February 2011 and then on a monthly basis. It observed from the results, that all of the concentrations of heavy metals under the study, were within the permissible limits for the three stations depending on the values of Iraqi Rivers Maintenance Regulation No. 25 of 1967.In many of the recoding data it was within intangible readings because of the low concentration of the heavy metals in the sample.
NostalgicOutdoors™- Acadia National Park- Visitor Guide Summary
NostalgicOutdoors™- Acadia National Park- Visitor Guide Summary
Recommended
study the concentrations of ni, zn, cd and pb in the tigris river in the city...
Four heavy metals were selected to estimate their concentrations on the Tigris River in the Baghdad area, the water samples collected from three stations on the river represented the northern, central and southern Baghdad, using apolyethylene bottles of 2-liter for the period from March 2010 until February 2011 and then on a monthly basis. It observed from the results, that all of the concentrations of heavy metals under the study, were within the permissible limits for the three stations depending on the values of Iraqi Rivers Maintenance Regulation No. 25 of 1967.In many of the recoding data it was within intangible readings because of the low concentration of the heavy metals in the sample.
NostalgicOutdoors™- Acadia National Park- Visitor Guide Summary
NostalgicOutdoors™- Acadia National Park- Visitor Guide Summary
Linea deltiempo
La evolución de la educación y como la tecnología a estado cambiando la enseñanza, hoy en día contamos con amplias fuentes de información que nos facilitan investigar satisfactoriamente.
analysis and determinants of profit efficiency of cassava farmers
A study on the analysis and determinants of profit efficiency of cassava farmers in Cross River State, Nigeria was carried out using the stochastic frontier profit function of Cobb-Douglas functional form. Data for the study were collected from primary sources with the aid of a set of structured and pre-tested questionnaires. For the determinants of profit efficiency, the minimum and maximum profit efficiency was 0.14 and 0.91 respectively with mean profit efficiency of 0.65. The mean profit efficiency implies that farmers were able to obtain 65% of their potential profit from a unit mix of inputs. In other words, about 35% of the profit is lost to inefficiency of management. Thus in the short run, there is a scope for increasing profit from cassava production by 35%. Age (0.37), education (0.67) and household size (0.58) had positive impact on profit inefficiency. The analysis of profit inefficiency effect showed a significant gamma (γ = 0.86). This implies that 86% deviation from maximum profit obtainable was as a result of inefficiency of the farmers rather than random error or variability. The signs and significance of the estimated coefficients in the inefficiency model have important implication on profit efficiency of the farmers. It is recommended that farmers should be encouraged to invest in cassava production for its profitability and economic value, inputs should be made available and at affordable prices especially improved varieties of cassava cuttings and cassava farmers should be encouraged to receive training on proper agronomic practices and usage of inputs to enhance profit efficiency of input use.
morphological and physiological variation of fusarium oxysporum f. sp. ciceri...
Nine isolates of Fusarium oxysporum f. sp. ciceri infecting chickpea were collected from major chickpea growing areas of Bangladesh and their cultural, morphological, physiological and pathogenic characteristics were described. The isolates varied significantly in their cultural, morphological and physiological traits, i.e. colony color, shape, margin and texture; mycelial radial growth and spore production. Laboratory studies were conducted to study the effect of different culture media, pH and temperature levels on mycelial growth and sporulation of Fusarium oxysporum f. sp. ciceri. Mycelial radial growth and sporulation of F. oxysporum was maximum for all the isolates at 25°C after seven days of inoculation, which was reduced drastically below 15°C and above 35°C. No growth and sporulation was observed at 5 °C temperature for all the isolates. The most suitable pH level for growth and sporulation of the fungus was at pH 6.0. The fungus grew well on oat meal agar medium among seven culture media tested. No sporulation was observed on WA medium. The highest number of macro spores (3.27 x 105 ml-1) and micro spores (4.06 x 105 ml-1) were produced on PDA. Among the nine tested isolates, only one isolate (FOC-1) found to be highly virulent (HV) type on reaction on chickpea variety BARI Chola –1.
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Linea deltiempo
La evolución de la educación y como la tecnología a estado cambiando la enseñanza, hoy en día contamos con amplias fuentes de información que nos facilitan investigar satisfactoriamente.
analysis and determinants of profit efficiency of cassava farmers
A study on the analysis and determinants of profit efficiency of cassava farmers in Cross River State, Nigeria was carried out using the stochastic frontier profit function of Cobb-Douglas functional form. Data for the study were collected from primary sources with the aid of a set of structured and pre-tested questionnaires. For the determinants of profit efficiency, the minimum and maximum profit efficiency was 0.14 and 0.91 respectively with mean profit efficiency of 0.65. The mean profit efficiency implies that farmers were able to obtain 65% of their potential profit from a unit mix of inputs. In other words, about 35% of the profit is lost to inefficiency of management. Thus in the short run, there is a scope for increasing profit from cassava production by 35%. Age (0.37), education (0.67) and household size (0.58) had positive impact on profit inefficiency. The analysis of profit inefficiency effect showed a significant gamma (γ = 0.86). This implies that 86% deviation from maximum profit obtainable was as a result of inefficiency of the farmers rather than random error or variability. The signs and significance of the estimated coefficients in the inefficiency model have important implication on profit efficiency of the farmers. It is recommended that farmers should be encouraged to invest in cassava production for its profitability and economic value, inputs should be made available and at affordable prices especially improved varieties of cassava cuttings and cassava farmers should be encouraged to receive training on proper agronomic practices and usage of inputs to enhance profit efficiency of input use.
morphological and physiological variation of fusarium oxysporum f. sp. ciceri...
Nine isolates of Fusarium oxysporum f. sp. ciceri infecting chickpea were collected from major chickpea growing areas of Bangladesh and their cultural, morphological, physiological and pathogenic characteristics were described. The isolates varied significantly in their cultural, morphological and physiological traits, i.e. colony color, shape, margin and texture; mycelial radial growth and spore production. Laboratory studies were conducted to study the effect of different culture media, pH and temperature levels on mycelial growth and sporulation of Fusarium oxysporum f. sp. ciceri. Mycelial radial growth and sporulation of F. oxysporum was maximum for all the isolates at 25°C after seven days of inoculation, which was reduced drastically below 15°C and above 35°C. No growth and sporulation was observed at 5 °C temperature for all the isolates. The most suitable pH level for growth and sporulation of the fungus was at pH 6.0. The fungus grew well on oat meal agar medium among seven culture media tested. No sporulation was observed on WA medium. The highest number of macro spores (3.27 x 105 ml-1) and micro spores (4.06 x 105 ml-1) were produced on PDA. Among the nine tested isolates, only one isolate (FOC-1) found to be highly virulent (HV) type on reaction on chickpea variety BARI Chola –1.
References:
Prezi
Prezi realizado para dar a conocer algunos de los peligros de internet y algunos "remedios" para estos
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analysis and determinants of profit efficiency of cassava farmers
analysis and determinants of profit efficiency of cassava farmers
morphological and physiological variation of fusarium oxysporum f. sp. ciceri...
morphological and physiological variation of fusarium oxysporum f. sp. ciceri...
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