A5036129930- Urban Stormwater Management Solutions
- Hydrology and Watershed Management Studies
- Soil Carbon and Nitrogen Dynamics
- Flood Risk Assessment and Management
- Composting and Vermicomposting Techniques
- Plant Disease Management Techniques
- Soil and Water Nutrient Dynamics
- Constructed Wetlands for Wastewater Treatment
- Irrigation Practices and Water Management
- Seedling growth and survival studies
- Plant Pathogens and Resistance
- Plant Disease Resistance and Genetics
- Water resources management and optimization
- Insect-Plant Interactions and Control
- Soil erosion and sediment transport
- Mycorrhizal Fungi and Plant Interactions
- Fecal contamination and water quality
- Plant Pathogens and Fungal Diseases
- Wastewater Treatment and Reuse
- Water Quality and Pollution Assessment
- Hydrology and Drought Analysis
- Plant Virus Research Studies
- Wastewater Treatment and Nitrogen Removal
- Greenhouse Technology and Climate Control
- Plant Water Relations and Carbon Dynamics
University of California, Davis
2016-2023
Willamette University
2020
Oregon State University
2020
State University of Norte Fluminense
2020
Insecticides, such as pyrethroids, have frequently been detected in runoff from urban areas, and their offsite transport can cause aquatic toxicity streams estuaries. To better understand the wash-off process of pesticide residues runoff, association pyrethroids with sediment residential surfaces was investigated two watersheds located Northern California (Sacramento County). Rainfall, flow rate, event mean concentrations/loads sediments collected during seasonal monitoring campaigns 2007 to...
To reduce nitrate contamination of groundwater in intensive agricultural production areas, crop producers should identify nitrogen (N) inputs and outputs to calculate potential N available for leaching into groundwater. However, poor understanding fate container plant may result inaccurate estimation potentially leachable N. improve container-applied fate, an experiment was conducted measure from a woody ornamental (Lagerstroemia indica 'Whitt II') system fertilized with controlled-release...
This research aimed to estimate methane (CH4) and nitrous oxide (N2O) fluxes subsequent global warming potential (GWP) for a Douglas fir (Pseudotsuga menziesii) bark-based substrate production system. The had controlled release fertilizer (CRF) incorporated with differing amounts of surface-applied fertilizer. In nursery study greenhouse experiment, gas flux samples were regularly collected. Total cumulative N2O emissions GWP greatest from the treatment most A regression model indicated that...
Potted poinsettia ( Euphorbia pulcherrima ) is an important commercial commodity for the U.S. floriculture industry. The production of demands intensively managed light control, heat, fertilizer, and water; inhibiting elongation with plant growth regulators, protecting plants from diseases pests pesticide applications. Excessive irrigation creates pollution, promotes disease, expensive. Sensor-based control systems can optimize schedules. Irrigation management crucial in nursery poinsettias...
Nitrous oxide (N2O) emissions from soilless growing substrates are a significant contributor to greenhouse gas inventory in the container-plant production industry. To understand and identify N2O pathways substrates, fir bark, peat, peat:fir bark were treated with labeled 15N fertilizers. The volumetric water content (VWC) of substrate was maintained near container capacity, samples collected every other day for 21 days analyzed 15N-N2O content. Fir had significantly greater total than peat...
Uniform incorporation of controlled-release fertilizer (CRF) is a recommended best management practice to reduce nitrogen leaching losses from container-plant production. The potential for damage CRF prill coating when mechanically incorporated into soilless substrate was tested. Osmocote Plus 15-9-12 uniformly or manually at the same rate and leachate collected over 76 days. Two experiments were conducted, with without lavender plants planted substrate. Leachate volume, electrical...
The severe drought in California (2012-2016) generated significant public and government concern. State local watering regulations were enacted to reduce residential commercial water-use during the droughts. This study presents a comparison of runoff volumes before after landscape irrigation droughts 2008 2012-2016. Each sampling site (Folsom 1 Folsom 2) was storm drain outfall that drained low-density catchment City Folsom. Dry season measured at sites represents neighborhood outdoor water...
The severe drought in California (2012-2016) generated significant public and government concern. State local watering regulations were enacted to reduce residential commercial water-use during the droughts. This study presents a comparison of runoff volumes before after landscape irrigation droughts 2008 2012-2016. Each sampling site (Folsom 1 Folsom 2) was storm drain outfall that drained low-density catchment City Folsom. Dry season measured at sites represents neighborhood outdoor water...