soil texture test News

  • Soil Particle Size Distribution

    Particle size distribution, also known as gradation, refers to the proportions by dry mass of a soil distributed over specified particle-size ranges. Gradation is used to classify soils for engineering and agricultural purposes, since particle size influences how fast or slow water or other fluid moves through a soil. Two proposed new ASTM standards provide test methods for determining particle ...


    By ASTM International

  • Protecting valuable urban soil

    Soil provides multiple services, ranging from food production, water-filtering and carbon capture, to green park areas in towns and cities, important for human well-being. However, increased urbanisation is leading to a loss of soil resources. Researchers have developed an online evaluation method that can be used as an aid to urban planning to avoid the loss of precious areas of good quality ...

  • Tension Creep Testing in Geomembranes

    Creep, the tendency of materials to deform over time due to applied stresses, has been a focus of the geosynthetics industry since testing first began more than 25 years ago. Creep testing methods have evolved, but the accurate assessment of tension creep (along with transmissivity) remains essential to the product evaluations of organizations considering geomembrane/geocomposite drainage ...


    By Agru America, Inc.

  • SGS Soil Fertility Services now available in Canada

    This year SGS Canada, in conjunction with SGS Mid-West Seed Services in Brookings, SD (USA), has started work with large fertilizer dealers in Western Canada.  SGS is offering custom GPS (Global Positioning System) soil sampling and analysis for more than one million acres of farm ground within Alberta, Saskatchewan and Manitoba.  Through SGS Crop Services, these retailers are able to ...


    By SGS

  • 3-D laser scanning: A new soil quality measurement

    Soil researchers pay close attention to bulk density, as it is one of the most common soil measurements and it is often used as a measure of soil quality. A soil’s bulk density can be indicative of the ease of root penetration, water movement, and soil strength. Measuring this value with traditional methods has been difficult in the past, but researchers have developed a new method using laser ...

  • New data on soil erosion by water reveals Mediterranean at highest flood risk

    Rainfall is one of the principle causes of soil erosion. It breaks apart soil, dislodges it from its surroundings, and washes it away as runoff. These mechanisms have an effect on how much water the soil may hold, how fast water flows over the soil, and even on the soil depth. In a much broader sense soil erosion can negatively affect vegetation growth and yields, as well as water quality, and ...

  • Root-imaging technology could improve crop resilience

    Mexican researchers have welcomed a breakthrough in imaging plant roots, saying it could help breeders develop new varieties of crops that can thrive in harsh conditions. The technique uses X-ray computed tomography to build up a three-dimensional image by scanning through 360 degrees, a technology commonly used in ...


    By SciDev.Net

  • ASTM C1319 - 11 Standard Specification for Concrete Grid Paving Units

    This specification covers the requirements for concrete grid paving units proposed for use in vehicular trafficways, parking areas, soil stabilization, and revetments. Materials shall possess adequate durability for the intended use. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the ...


    By ASTM International

  • Problem Solving Bulk Reduction

    Mono Pumps successful partnership with organic waste disposal company Tanks & Vessels Ltd has built on the success of a pilot aerobic digestion plant in the UK to secure their first commercial order, now up and running in East Lincolnshire. The plant, built by Tanks and Vessels, processes food and vegetable waste with the help of Mono’s progressing cavity pumps and Munchers. The organic ...


  • U.S. Department of Energy Projects Win 32 R&D 100 Awards for 2016

    November 7, 2016 -- U.S. Department of Energy (DOE) researchers have won 32 of the 100 awards given out this year by R&D Magazine and received a special recognition award for the most outstanding technology developments with promising commercial potential. The R&D 100 ...


    By Smart Grid Observer

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