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Papers by Oiganji Ezekiel
FUDMA JOURNAL OF SCIENCES, 2020
Sachet water has gradually become the most widely consumed portable water for everyone in Nigeria... more Sachet water has gradually become the most widely consumed portable water for everyone in Nigeria. This study aimed to assess physiochemical and bacteriological properties of selected sachet water brands. Random sampling method was used to collect data from 20 selected brands within Jos North Metropolis, the 20 selected brands served as sampling frame where by 3 brands were selected for the pilot study. The three brands selected as pilot study were; FEDCOF, LOANE and MCEDEN. The samples of sachet water were collected from the 3 different brands within 24 hours of production which were transported to Bauchi State Water Board for analysis. The parameters were analyzed following standard procedures to determine the physical chemical and bacteriological content of the samples. The physiochemical properties of the samples were analyzed, it was observed that the following parameters: pH, Temperature, Turbidity, Total Dissolve Solid, Total Hardness, Conductivity, Alkalinity, Nitrate, Sulp...
An experiment was carried out with potted tomato plants to investigate the interactive effect of ... more An experiment was carried out with potted tomato plants to investigate the interactive effect of water regime and mulching on the growth and yield of tomato; conducted during the 2012/2013 dry season at the Federal College of Forestry Jos, Nigeria to evaluate water management options on the performance of tomato. The experiment consisted of three levels of irrigation water application depths (0.3, 0.4 and 0.5 liter/day/plant) and three types of mulch materials (Black polyethylene, white polyethylene and straw were used to cover the soil surface of the pots). The pots were arranged in Randomize Complete Block Design (RCBD) system. Watering with different volume of water was done throughout the growth period, the result showed that water regime has no significant effect on vine length, leaf number, leaf area, stem girth but at plant yield except at 4WAT, while the effect of mulch on Vine length and stem girth were significant but leaf number, leaf area, stem girt were not significant....
s The use of Medi-emitter gravity drip irrigation systems is gradually gaining popularity in Nort... more s The use of Medi-emitter gravity drip irrigation systems is gradually gaining popularity in Northern Nigeria. Medical infusion set was used in place of the conventional emitter to provide discharge. In the study reported herein, a field experiments was carried out at the federal college of forestry research Farm during 2016/2017 irrigation season to evaluate the yield response and economic return of a Medi-emitter drip irrigated onion. The field experiment consisted of four treatments replicated three times. The treatments comprises of a control treatment which was given full irrigation (irrigated at 100 % water requirement) and others at 25, 50, and 75% water with respect to water requirement of onion crop in the study area, when water deficit was imposed on the onion crop at 75, 50 and 25% the corresponding yield reductions were 12, 24 and 30% with respect to when 0% deficit was imposed on the onion crop The highest bulb yield value of 32.62 t/ha was obtained when null deficit wa...
Agricultural Engineering International: The CIGR Journal, 2017
In the past, outcome of any water management strategy could only be known after field experiment,... more In the past, outcome of any water management strategy could only be known after field experiment, in recent times, means of evaluating the implications of irrigation schedules without field experiment is fast gaining grounds with the use of models. This research work present a scenarios studies for different developed irrigation scheduling options for a drip irrigated maize crop at the Institute for Agricultural Research (IAR) irrigation farm Samaru-Nigeria during 2013 and 2014 cropping season using a computer-based model. Aqua Crop was calibrated and validated with data obtained from the field, it was further used to generate scenario of different irrigation scheduling outcome. Grain and biomass yields, harvest index, seasonal evapotranspiration and crop water productivity were determined. The general trend of the results suggests that skipping regular irrigations may be advantageous if such is done at grain-filling stage, though most of the time this stage is intercepted by rai...
Agricultural Engineering International: The CIGR Journal, 2016
Farmers in the northern Guinea Savannah ecological zone of Nigeria have been experiencing declini... more Farmers in the northern Guinea Savannah ecological zone of Nigeria have been experiencing declining crop yield due to erratic water supply. In recent times, research on better water management and interaction between effects of climate, soil and field management on crop production is fast gaining grounds with the use of models. Models can be used to predict the impact of long-term climate variability, thus providing an opportunity of better techniques compared with the traditional multi-location trials. This study presents the calibration and validation of AquaCrop model for drip irrigated maize (Zea mays). Calibration was done using data of 2013, while validation across seasons was done with data of 2014. The modelling efficiency of grain yield, biomass yield and crop water use were 81%, 90%, and 85% when calibration was done, while during the validation the modelling efficiency were 86%, 74% and 50%, respectively. This indicates a good fit between the simulated output and measured...
An experiment was carried out with potted tomato plants to investigate the interactive effect of ... more An experiment was carried out with potted tomato plants to investigate the interactive effect of water regime and mulching on the growth and yield of tomato; conducted during the 2012/2013 dry season at the Federal College of Forestry Jos, Nigeria to evaluate water management options on the performance of tomato. The experiment consisted of three levels of irrigation water application depths (0.3, 0.4 and 0.5 liter/day/plant) and three types of mulch materials (Black polyethylene, white polyethylene and straw were used to cover the soil surface of the pots). The pots were arranged in Randomize Complete Block Design (RCBD) system. Watering with different volume of water was done throughout the growth period, the result showed that water regime has no significant effect on vine length, leaf number, leaf area, stem girth but at plant yield except at 4WAT, while the effect of mulch on Vine length and stem girth were significant but leaf number, leaf area, stem girt were not significant....
Effective water management is a key to improving agricultural water management, enhancing crop pr... more Effective water management is a key to improving agricultural water management, enhancing crop production and improved sustainability of irrigated agriculture. In the past, outcome of any water management strategy could only be known after field experiment, in recent times, means of evaluating the implications of irrigation schedules without field experiment is fast gaining grounds with the use of models. However, there is need for proper evaluation of developed irrigation scheduling options with the use of models for optimal water management and crop response, before recommendation can be made to relevant bodies. This research work present a scenarios studies for different developed irrigation scheduling options for a drip irrigated maize crop at Samaru-Nigeria.
FUDMA JOURNAL OF SCIENCES, 2020
Sachet water has gradually become the most widely consumed portable water for everyone in Nigeria... more Sachet water has gradually become the most widely consumed portable water for everyone in Nigeria. This study aimed to assess physiochemical and bacteriological properties of selected sachet water brands. Random sampling method was used to collect data from 20 selected brands within Jos North Metropolis, the 20 selected brands served as sampling frame where by 3 brands were selected for the pilot study. The three brands selected as pilot study were; FEDCOF, LOANE and MCEDEN. The samples of sachet water were collected from the 3 different brands within 24 hours of production which were transported to Bauchi State Water Board for analysis. The parameters were analyzed following standard procedures to determine the physical chemical and bacteriological content of the samples. The physiochemical properties of the samples were analyzed, it was observed that the following parameters: pH, Temperature, Turbidity, Total Dissolve Solid, Total Hardness, Conductivity, Alkalinity, Nitrate, Sulp...
An experiment was carried out with potted tomato plants to investigate the interactive effect of ... more An experiment was carried out with potted tomato plants to investigate the interactive effect of water regime and mulching on the growth and yield of tomato; conducted during the 2012/2013 dry season at the Federal College of Forestry Jos, Nigeria to evaluate water management options on the performance of tomato. The experiment consisted of three levels of irrigation water application depths (0.3, 0.4 and 0.5 liter/day/plant) and three types of mulch materials (Black polyethylene, white polyethylene and straw were used to cover the soil surface of the pots). The pots were arranged in Randomize Complete Block Design (RCBD) system. Watering with different volume of water was done throughout the growth period, the result showed that water regime has no significant effect on vine length, leaf number, leaf area, stem girth but at plant yield except at 4WAT, while the effect of mulch on Vine length and stem girth were significant but leaf number, leaf area, stem girt were not significant....
s The use of Medi-emitter gravity drip irrigation systems is gradually gaining popularity in Nort... more s The use of Medi-emitter gravity drip irrigation systems is gradually gaining popularity in Northern Nigeria. Medical infusion set was used in place of the conventional emitter to provide discharge. In the study reported herein, a field experiments was carried out at the federal college of forestry research Farm during 2016/2017 irrigation season to evaluate the yield response and economic return of a Medi-emitter drip irrigated onion. The field experiment consisted of four treatments replicated three times. The treatments comprises of a control treatment which was given full irrigation (irrigated at 100 % water requirement) and others at 25, 50, and 75% water with respect to water requirement of onion crop in the study area, when water deficit was imposed on the onion crop at 75, 50 and 25% the corresponding yield reductions were 12, 24 and 30% with respect to when 0% deficit was imposed on the onion crop The highest bulb yield value of 32.62 t/ha was obtained when null deficit wa...
Agricultural Engineering International: The CIGR Journal, 2017
In the past, outcome of any water management strategy could only be known after field experiment,... more In the past, outcome of any water management strategy could only be known after field experiment, in recent times, means of evaluating the implications of irrigation schedules without field experiment is fast gaining grounds with the use of models. This research work present a scenarios studies for different developed irrigation scheduling options for a drip irrigated maize crop at the Institute for Agricultural Research (IAR) irrigation farm Samaru-Nigeria during 2013 and 2014 cropping season using a computer-based model. Aqua Crop was calibrated and validated with data obtained from the field, it was further used to generate scenario of different irrigation scheduling outcome. Grain and biomass yields, harvest index, seasonal evapotranspiration and crop water productivity were determined. The general trend of the results suggests that skipping regular irrigations may be advantageous if such is done at grain-filling stage, though most of the time this stage is intercepted by rai...
Agricultural Engineering International: The CIGR Journal, 2016
Farmers in the northern Guinea Savannah ecological zone of Nigeria have been experiencing declini... more Farmers in the northern Guinea Savannah ecological zone of Nigeria have been experiencing declining crop yield due to erratic water supply. In recent times, research on better water management and interaction between effects of climate, soil and field management on crop production is fast gaining grounds with the use of models. Models can be used to predict the impact of long-term climate variability, thus providing an opportunity of better techniques compared with the traditional multi-location trials. This study presents the calibration and validation of AquaCrop model for drip irrigated maize (Zea mays). Calibration was done using data of 2013, while validation across seasons was done with data of 2014. The modelling efficiency of grain yield, biomass yield and crop water use were 81%, 90%, and 85% when calibration was done, while during the validation the modelling efficiency were 86%, 74% and 50%, respectively. This indicates a good fit between the simulated output and measured...
An experiment was carried out with potted tomato plants to investigate the interactive effect of ... more An experiment was carried out with potted tomato plants to investigate the interactive effect of water regime and mulching on the growth and yield of tomato; conducted during the 2012/2013 dry season at the Federal College of Forestry Jos, Nigeria to evaluate water management options on the performance of tomato. The experiment consisted of three levels of irrigation water application depths (0.3, 0.4 and 0.5 liter/day/plant) and three types of mulch materials (Black polyethylene, white polyethylene and straw were used to cover the soil surface of the pots). The pots were arranged in Randomize Complete Block Design (RCBD) system. Watering with different volume of water was done throughout the growth period, the result showed that water regime has no significant effect on vine length, leaf number, leaf area, stem girth but at plant yield except at 4WAT, while the effect of mulch on Vine length and stem girth were significant but leaf number, leaf area, stem girt were not significant....
Effective water management is a key to improving agricultural water management, enhancing crop pr... more Effective water management is a key to improving agricultural water management, enhancing crop production and improved sustainability of irrigated agriculture. In the past, outcome of any water management strategy could only be known after field experiment, in recent times, means of evaluating the implications of irrigation schedules without field experiment is fast gaining grounds with the use of models. However, there is need for proper evaluation of developed irrigation scheduling options with the use of models for optimal water management and crop response, before recommendation can be made to relevant bodies. This research work present a scenarios studies for different developed irrigation scheduling options for a drip irrigated maize crop at Samaru-Nigeria.