Technical Note: Stream Temperatures as Related to Subsurface Waterflows Originating from Irrigation

Water stress of sugarbeet as related to leaf and canopy temperatures and to leaf Water content

Advantages and Disadvantages of Subsurface Drip Irrigation

The advantages and disadvantages of subsurface drip irrigation (SDI) as compared to alternative irrigation systems are conceptually discussed. Each category (advantages and disadvantages) is subdivided into three groups: 1) Water and soil issues; 2) Cropping and cultural practices, and 3) System infrastructure issues. The adaptation and adoption of SDI systems into diverse cropping systems, geo...

Advantages and Disadvantages of Subsurface Drip Irrigation

Subsurface drip irrigation (SDI) applies water directly to the crop root zone using buried polyethy­ lene tubing, also known as a dripline, dripperline, or drip tape (Figure 1). Driplines come in varying diam­ eters and thicknesses in order to maintain acceptable irrigation uniformity for different field lengths. Smaller diameter driplines are used when short lateral lengths are required. As la...

Hydrodynamics Induced Vibration to Trash Racks (TECHNICAL NOTE)

In conventional power plants trash-racks are provided at the intakes to protect the turbines. In pumped storage plants, the draft tube or tailrace must also have trash-racks to protect the units while pumping. Because the loads believed to cause many failures of trash-racks are dynamic in nature, it is important to understand the dynamic characteristics of trash-rack structures in general and a...

Technical Note

We reported a new approach of ABO genotyping by a polymerase chain reaction and restriction fragment length polymorphism method. Instead of amplifying the loci containing the positions of nucleotides 258 and 700 of cDNA of the A transferase separately, we successfully amplified these 2 loci together in one reaction mixture using 2 sets of primers. The amplified DNA products were digested at the...