A soil bin test facility was developed at the University of Manitoba for indoor soil dynamics studies, specifically on soil-machine interaction research in agriculture. The soil bin permitted soil-machine interaction research being studied continuously without weather interrupti…
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Climate change is already affecting food security in West Africa, posing a serious threat to the agriculture--which is mainly rain-dependent. Crop models can help investigate climate-crop relationships in order to better assist farmers. In this study, we implemented AquaCrop at …
For many years, the Casamance was a self-sufficient region. Recently, this region has experienced food deficits because of the persistent drought. Given the shortage of rainfall over the last several years and the increasing accumulation of salt, the number of abandoned mangrove…
The purpose of this study was to develop a model that can allocate water between users of different areas in a large-scale irrigation project. The objective function of such a model consists of maximizing the net benefit of the project, subject to a number of constraints dependi…
Site specific farming systems have the potential to increase farmers' net income by reducing the use of agro-chemicals and applying variable rate technology for areas showing stable yield patterns. This study was designed to: (1) study yield patterns in given fields using variog…
An automated method for the simultaneous measurement of water content, soil water pressure, and soil bulk electrical conductivity in soil columns was developed based on time domain reflectometry (TDR), three wire probes and pressure transducers. Soil electrical conductivity was …
In recent years, the need for increased crop production has been accompanied by a search for improved tillage practices. Emphasis is now on tillage practices which leave crop residue on the soil surface to reduce soil erosion and to increase infiltration into the soil profile. S…
The Indus Basin Irrigation System (IBIS) irrigates 16 million ha of land in Pakistan. The irrigation water is also used for domestic consumption in rural areas and where the ground water is brackish. Many major cities and towns dispose their untreated wastewater directly into th…
The Fayoum basin of Egypt is a closed basin with a lack of natural drainage outlets. The saline drainage water disposed of and impounded into Lake Qaroun is subject to evapoconcentration. As a result of these physical and environmental constraints, water and salt management are …
A computational fluid dynamics (CFD) model was used to study natural ventilation in arid region greenhouses. Airflow, temperature and moisture distributions for naturally and fan-ventilated greenhouses, and greenhouses cooled by evaporative systems were simulated numerically and…
The residence time and residence-time distribution (RTD) of fresh and simulated particles flowing in a swept surface heat exchanger (SSHE) and holding tube were investigated. The effects of selected experimental conditions on RTD include particle shape (cube, cylinder, and spher…
Scope and method of study. Currently, Saudi Arabia faces a severe water shortage problem which has been attributed mainly to the imbalanced use of national groundwater resources especially by the agricultural sector. A linear-dynamic programming model was developed to determine …
Three empirical salinity models (designated as Models R1, R2, and MF) were examined for real time soil moisture estimation and one-time calibration of electromagnetic induction sensors using apparent soil electrical conductivity. Field data were collected at two sites representi…
Alkaloids are a valuable source of pharmaceuticals. As alkaloid producers, hairy roots show rapid growth in hormone-free medium and synthesis of alkaloids whose biosynthesis requires differentiated root cell types. Oxygen mass transfer is a limiting factor in hairy root cultures…
No current modeling tool accounts for all the necessary factors to validate a thermal process for ready-to-eat (RTE) meat and poultry; some do not address Salmonella and/or important product/process attributes, and most have not been validated against industry-relevant data. The…
Frequent poor harvests in rainfed agriculture have resulted in recurring food shortages in Niger for decades. The predicted climate change during this century is expected to worsen the situation. Dry season irrigated horticulture has been adopted as a coping strategy. However, i…
The main objective of the research was to understand hemp processing at different stages through numerical simulations. Processing of hemp materials involves breaking the hemp into different sizes of particles and separating those particles into fractions of different sizes. Num…
As the world population increases and resources become more coveted, water emerges as a key component to global food security. The Middle East and North Africa (MENA) is among the driest regions in the world: containing just one percent of the world's freshwater resources. An in…
An integrated process was developed to hydrolyze the phytates in light steep water (LSW) and to simultaneously isolate inorganic phosphate (Pi) and myo-inositol products. The proposed integrated process is helpful in resolving the environmental and nutritional concerns in the us…
The utilization of tropical fruit biomass as feedstock for biorenewable resources is an attractive proposition due to its abundance and potential to reduce reliance on conventional sources as well as the overall economic gain to all stakeholders. This study aims to pave the way …