Olanrewaju Omoju - Academia.edu (original) (raw)
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Papers by Olanrewaju Omoju
Journal of Soil Science and Environmental Management, 2018
Soil sustainability in climate changing trends is critical to address future food security and sa... more Soil sustainability in climate changing trends is critical to address future food security and safety. This study investigated the effect of air and soil temperature on some selected soil properties. The impact of soil conditioning with composted organic wastes on the temperature effect was also assessed. Four different chambers were set up using electrical bulbs of 60, 100, 200, and 300 W given air temperature ranges of 30-32, 33-35, 36-38 and 39-41°C (10 h daily photoperiod) respectively with two other natural growth units (27-29°C) with or without organic compost were established and replicated four times under screen house for 95 days. Soil properties; particle size distribution, electrical conductivity (EC), pH, cation exchange capacity (CEC), organic carbon (OC), N, P, and K were determined using standard methods. Positive correlation was obtained for air and soil temperature, and soil parameters varied significantly (P ≤ 0.05) for the different temperature ranges. Combined effect of elevated temperature and compost amendment increased soil properties by 0.45-54, 9-28, 0.4-0.6, 89-91 and 10-29% for C, K, pH, EC and CEC under different temperature regimes respectively. Nitrogen and phosphorus availability decreased by 16-21 and 8-37% with increased in temperature. The addition of compost cushioned the effects of increasing temperatures on soil factors. It is evident from the study that global warming could potentially alter fate of soil factors and which may be detrimental to sustainable food production and food security.
Engineering in Agriculture, Environment and Food, 2021
In this study, a mixed cropping 1 ha farm of maize and cassava was established using different pl... more In this study, a mixed cropping 1 ha farm of maize and cassava was established using different planting and weeding modes to foster small scale agricultural machinery use among small holder farmers. The planting techniques employed include jab, rotary and manual planting while weeding methods include mechanical, chemical and manual weeding. The effects of these treatments were studied using field capacity of planting and weeding, yield of crops, and level of exertion of operator. The experiment was conducted using a split plot design with 2 replicates. The highest field capacity among the planting techniques was that of rotary planting with 1.53 ha / h while 0.012 ha / h was obtained for mechanical weeding. The highest yield of maize of 15.42 t / ha was obtained from rotary planting. All the treatments and their interactions are highly significant. However, there was no significant difference observed between all the variables for manual and mechanical weeding.
Decision Making Based on Data Proceedings IASE 2019 Satellite Conference, 2019
In sub-Saharan-Africa (SSA), agriculture land-use supports the livelihoods of the majority of peo... more In sub-Saharan-Africa (SSA), agriculture land-use supports the livelihoods of the majority of people. Land- use for agricultural-activity is an economic-activity that is highly dependent upon weather and climate that produce food and fibre necessary to sustain human life. Hence, land-use for agriculture is expected to be vulnerable to climate variability. This paper examines this relationship. The paper presents data and generated evidence-based decision making under risk and uncertainty as influenced by climate change and its effects on agricultural land-use/outputs. Farm-level cost-route survey of cross-sectional national-data of 800 respondents was used for analysis. Data were analyzed and presented using the tools of descriptive statistics, trans-logarithms model and multivariate probit model (MVP). The study indicated a strong relationship between efficient use of agricultural-land and adaptive-processes to climate-change. Thus, providing data and analysis that strengthen polic...
Journal of Soil Science and Environmental Management, 2018
Soil sustainability in climate changing trends is critical to address future food security and sa... more Soil sustainability in climate changing trends is critical to address future food security and safety. This study investigated the effect of air and soil temperature on some selected soil properties. The impact of soil conditioning with composted organic wastes on the temperature effect was also assessed. Four different chambers were set up using electrical bulbs of 60, 100, 200, and 300 W given air temperature ranges of 30-32, 33-35, 36-38 and 39-41°C (10 h daily photoperiod) respectively with two other natural growth units (27-29°C) with or without organic compost were established and replicated four times under screen house for 95 days. Soil properties; particle size distribution, electrical conductivity (EC), pH, cation exchange capacity (CEC), organic carbon (OC), N, P, and K were determined using standard methods. Positive correlation was obtained for air and soil temperature, and soil parameters varied significantly (P ≤ 0.05) for the different temperature ranges. Combined effect of elevated temperature and compost amendment increased soil properties by 0.45-54, 9-28, 0.4-0.6, 89-91 and 10-29% for C, K, pH, EC and CEC under different temperature regimes respectively. Nitrogen and phosphorus availability decreased by 16-21 and 8-37% with increased in temperature. The addition of compost cushioned the effects of increasing temperatures on soil factors. It is evident from the study that global warming could potentially alter fate of soil factors and which may be detrimental to sustainable food production and food security.
Engineering in Agriculture, Environment and Food, 2021
In this study, a mixed cropping 1 ha farm of maize and cassava was established using different pl... more In this study, a mixed cropping 1 ha farm of maize and cassava was established using different planting and weeding modes to foster small scale agricultural machinery use among small holder farmers. The planting techniques employed include jab, rotary and manual planting while weeding methods include mechanical, chemical and manual weeding. The effects of these treatments were studied using field capacity of planting and weeding, yield of crops, and level of exertion of operator. The experiment was conducted using a split plot design with 2 replicates. The highest field capacity among the planting techniques was that of rotary planting with 1.53 ha / h while 0.012 ha / h was obtained for mechanical weeding. The highest yield of maize of 15.42 t / ha was obtained from rotary planting. All the treatments and their interactions are highly significant. However, there was no significant difference observed between all the variables for manual and mechanical weeding.
Decision Making Based on Data Proceedings IASE 2019 Satellite Conference, 2019
In sub-Saharan-Africa (SSA), agriculture land-use supports the livelihoods of the majority of peo... more In sub-Saharan-Africa (SSA), agriculture land-use supports the livelihoods of the majority of people. Land- use for agricultural-activity is an economic-activity that is highly dependent upon weather and climate that produce food and fibre necessary to sustain human life. Hence, land-use for agriculture is expected to be vulnerable to climate variability. This paper examines this relationship. The paper presents data and generated evidence-based decision making under risk and uncertainty as influenced by climate change and its effects on agricultural land-use/outputs. Farm-level cost-route survey of cross-sectional national-data of 800 respondents was used for analysis. Data were analyzed and presented using the tools of descriptive statistics, trans-logarithms model and multivariate probit model (MVP). The study indicated a strong relationship between efficient use of agricultural-land and adaptive-processes to climate-change. Thus, providing data and analysis that strengthen polic...