A5074296013- Plant Water Relations and Carbon Dynamics
- Irrigation Practices and Water Management
- Crop Yield and Soil Fertility
- Soil and Unsaturated Flow
- Climate change impacts on agriculture
- Greenhouse Technology and Climate Control
- Rice Cultivation and Yield Improvement
- Hydrology and Watershed Management Studies
- Climate variability and models
- Soil Moisture and Remote Sensing
- Weed Control and Herbicide Applications
- Remote Sensing in Agriculture
- Plant responses to elevated CO2
- Soil Carbon and Nitrogen Dynamics
- Water-Energy-Food Nexus Studies
- Agronomic Practices and Intercropping Systems
- Hydrology and Drought Analysis
- Plant nutrient uptake and metabolism
- Soil Geostatistics and Mapping
- Water resources management and optimization
- Pesticide and Herbicide Environmental Studies
- Soybean genetics and cultivation
- Solar Radiation and Photovoltaics
- Smart Agriculture and AI
- Urban Heat Island Mitigation
Pennsylvania State University
2021-2025
University of Nebraska–Lincoln
2013-2022
New Mexico State University
2018
University of Iowa
2017
Conservation and Production Research Laboratory
2006-2008
Cukurova University
2007
Harran University
2007
University of Florida
1969-2005
Rogers (United States)
2002-2005
University of Idaho
2005
Climate variability and trends affect global crop yields are characterized as highly dependent on location, type, irrigation. U.S. Great Plains, due to its significance in national food production, evident climate variability, extensive irrigation is an ideal region of investigation for impacts production. This paper evaluates maize, sorghum, soybean effect individual counties this by employing yield datasets from 1968-2013. Variability was a quarter the regional average yields, with...
Reference evapotranspiration (ETo) plays a key role in irrigation systems design, water management under irrigated and rainfed production. Under the sahelian conditions Senegal River Valley that receives less than 300 mm annual rainfall, rice crop use should be estimated for sustainability of resource. However Penman–Monteith (PM) equation is revealed most accurate one; it necessitates several climatic parameters are not always available mostly developing countries. The objective this study...
Corn ( Zea mays L.) grown under a Mediterranean semiarid climate requires supplemental irrigation to maximize the grain yield. Since cost of application has been increasing, elimination unnecessary applications would improve economics corn production. There much interest in crop water stress index (CWSI) as potential tool for scheduling and yield estimation. An experiment was conducted monitor quantify stress, develop parameters summer‐grown function CWSI cropping conditions. Three...
Two equations for estimating grass reference evapotranspiration (ET0) were derived using the Food and Agriculture Organization Penman–Monteith (FAO56-PM) method as an index. The first equation, solar radiation (Rs) based, estimates ET0 from incoming Rs maximum minimum air temperature, second net (Rn) uses Rn temperature. 15 years (1980–1994) of daily values estimated FAO56-PM measured carefully screened weather data near Gainesville, Florida. performance was evaluated 6 validation...
The sensitivity of the standardized ASCE grass-reference Penman-Monteith evapotranspiration (ASCE-PM ETo ) equation to climate variables in different regions has not yet been studied. Sensitivity analyses for daily form ASCE-PM were conducted on wind speed at 2m height (U2) , maximum and minimum air temperatures ( Tmax Tmin ), vapor pressure deficit (VPD), solar radiation (Rs) following United States: semiarid (Scottsbluff, Nebraska, Bushland, Texas), a Mediterranean-type (Santa Barbara,...
Under the semiarid climate of Southwest United States, accurate estimation crop water use is important for management and planning under conservation agriculture. The objectives this study were to estimate maize productivity in Four Corners region New Mexico. Maize was grown full irrigation during 2011, 2012, 2013, 2014 2017 seasons at Agricultural Science Center Farmington (NM). Seasonal amounts applied varied from 576.6 1051.6 mm averaged 837.7 total supply 693.4 1140.5 mm. actual...
Abstract Significant air temperature changes have occurred globally during the 20 th century, which are spatially variable to a considerable degree and these can substantial implications in agroecosystem productivity. The agroclimate indicators that responsible contexts first fall frost (FFF), last spring (LSF), climatological growing season (CGS) length, heat accumulation (growing days, GDD). We explore spatial temporal trends associated with indices across continental U.S. (CONUS)...
<abstract><title><italic>Abstract.</italic></title> South-central Nebraska is one of the most extensively irrigated areas in U.S., with over 65,000 active irrigation wells, and maize major agronomical crop produced. Maize production this region requires supplementary for maximum productivity. Effective on-farm implementation full limited practices potential improvements productivity knowledge locally developed yield response to water functions. In study, effects on (Zea mays L.) plant...
Field-based high throughput plant phenotyping has recently gained increased interest in the efforts to bridge genotyping and gap accelerate breeding for crop improvement. In this paper, we introduce a large-scale, integrated robotic cable-driven sensing system developed at University of Nebraska field research. It is constructed collect data from 0.4 ha field. The sensor payload 30 kg offers flexibility integrate user defined modules. Currently it integrates four-band multispectral camera,...
The objectives of this study were to investigate water saving strategies in the paddy field and evaluate performance some newly released rice varieties. Field experiments conducted at Fanaye Senegal River Valley during two growing seasons 2015. Three irrigation regimes ((i) continuous flooding, (ii) trigging soil matric potential (SMP) 30 kPa, (iii) SMP 60 kPa) tested an irrigated lowland field. Irrigation are alternate wetting drying (AWD) cycles. Four inbred varieties (NERICA S-21, NERICA...
The realization of Internet underground things (IOUT) relies on the establishment reliable communication links, where antenna becomes a major design component due to significant impacts soil. In this paper, theoretical model is developed capture change soil moisture return loss, resonant frequency, and bandwidth (BW) buried dipole antenna. Experiments are conducted in silty clay loam, sandy, silt loam soil, characterize effects an indoor testbed field testbeds. It shown that at subsurface...
ABSTRACT Soybean growth, yield, crop evapotranspiration (ETc) and water use efficiency (CWUE or productivity, CWP) under different irrigation levels in three soil types the same field were investigated concurrently. Treatments each type were: (i) variable rate (VRI), (ii) fixed full (FR‐1″) (iii) limited (FR‐0.75″). There was not enough evidence suggesting superiority of VRI over FRI‐1″ FRI‐0.75″ terms improving yield CWUE. Leaf area index (LAI) plant height stronger functions than...
Efficient use of natural water resources in agriculture is becoming an important issue Florida because the rapid depletion freshwater due to increasing trend industrial development and population. Reliable consistent estimates evapotranspiration (ET) are a key element managing efficiently. Since 1940s numerous grass- alfalfa-reference (ETo ETr, respectively) equations have been developed used by researchers decision makers, resulting confusion as which equation select most accurate reference...