The future of the South Asia’s rice-wheat (RW) production system is at stake due to continuously depleting aquifers and increasing pressure on underground water under projected climate change scenario. Conventional management factors such as flood irrigation, intensive tillage and residue burni... Read More
The low energy precision application (LEPA) irrigation concept was developed forty years ago (ca. 1978) to address the depletion of irrigation water from the Ogallala Aquifer and the sharp increase in energy needed for pumping in the Texas High Plains. The LEPA method applies water to the soil su... Read More
Irrigated agriculture is a major economic contributor of the High Plains Region and it primarily relies on the High Plains Aquifer as a source of water. Over time, areas of the High Plains Aquifer have experienced drawdowns limiting its ability to supply sufficient water to sustain fully irrigate... Read More
An efficient management of our precious water resources is not possible without acquiring a comprehensive and detailed understanding on water fluxes at irrigated areas. In the past few decades, agricultural water balance analyses have been carried out at a wide variety of temporal (from hourly to... Read More
Optical and thermal remote sensing data were acquired at ground level over several turfgrass species under different soil and irrigation treatments in northern Colorado, USA. Three vegetation indices (VIs), estimated based on surface spectral reflectance, were sensitive to the effect of reduced w... Read More
Research was conducted in northern Colorado in 2011 to estimate the crop water stress index (CWSI) and actual transpiration (T a) of maize under a range of irrigation regimes. The main goal was to obtain these parameters with minimum instrumentation and measurements. The results confirmed that em... Read More
Canopy temperature has been used as an indicator of crop water stress, since a reduction in plant available water results in lower transpiration rates and consequently higher canopy temperatures. In this study, two indices based on remotely-sensed canopy temperature were used in northern Colorado... Read More
Infrared thermal radiometers (IRTs) are an affordable tool for researchers to monitor canopy tempera-ture. In this maize experiment, six treatments of regulated deficit irrigation levels were evaluated. Themain objective was to evaluate these six treatments in terms of six indices (three previous... Read More
This paper presents the potential of remotely sensed data in addressing spatially distributed irrigation equity, adequacy, and sustainability. The surface energy balance algorithm for land (SEBAL) was implemented to map actual evapotranspiration (ET) over an irrigation district in southern Califo... Read More
Deficit irrigation (DI), where water is applied in amounts of less than what is required to meet crop water demand, seems to be one of the most effective ways to save irrigation water. However, DI practices are usually associated with higher levels of risk of yield penalizations. To minimize risk... Read More
