soil nitrate test News

  • Enzyme-based nitrate determination receives USGS Standard Method designation

    RECOMBINANT PROTEIN TECHNOLOGY for GREEN ANALYTICAL CHEMISTRY:  USGS Standard Methods I-2457-11 and I-2458-11  Analytical chemistry for environmental monitoring often requires hazardous reagents.  NECi’s enzyme-based nitrate reagents replace cadmium reduction with reagent-grade, environmentally benign enzymes.  The resulting nitrite is determined by standard ...


    By NECi Superior Enzymes

  • Water well owners should check water periodically for bacteria, nitrate

    Bacteria and nitrate are widespread in the environment, so every household water well owner should regularly test their water to make sure no health risk exists, the National Ground Water Association recommended today. While most bacteria found in water do not cause disease, disease-causing bacteria called pathogens can exist in well water given the right circumstances, NGWA said. Nitrate is not ...

  • Nitrogen soil tests - Do they always reflect what is going on?

    Do soil tests always reflect what’s going on? Emphatically, NO. The usefulness of nitrogen (N) soil testing is frequently a topic of discussion in both academic and farming circles. Those for the negative generally cite variability involved in sampling, lack of analytical laboratory accuracy and/or precision and lack of response calibration as factors that influence their position. While they ...

  • International Journal of Soil, Sediment and Water features

    Field tests for the detection of lead in soil are not frequently accepted, since the tests are rather cumbersome or not reliable for screening determinations. Recently, we developed the LEADQuick field test kit for the detection of lead in water with 3 #22;g/L sensitivity. T his test is further modified to detect lead in soil with a sensitivity 0.03 #22;g. We developed an extraction protocol ...

  • Free Webinar: Optimizing Soil Health by Managing Nutrients

    With today's challenges, it's becoming increasingly important to practice land stewardship, protect water quality, and ensure food security.  Maintaining soil health is crucial for increased crop productivity, preventing nutrient runoff, and decreasing costs of crop inputs.  One of the first steps in managing soil health is knowing current nutrient levels ...


    By NECi Superior Enzymes

  • Silver nanoparticles in sewage sludge harmful to soil microorganisms

    Recent research has found that silver nanoparticles in sewage sludge, which is used on agricultural land as a fertiliser, can be toxic to soil microorganisms. The researchers calculated that a maximum of 30mg of silver nanoparticles per kilogram of sludge can be applied to land before harm occurs, based on typical application rates in Germany of five tons per hectare of farmland every three ...

  • Testing the water is important for household well owners

    The National Ground Water Association recommends household well owners test their water at least annually for bacteria, nitrate, and any contaminants of local concern. More frequent testing should be considered if: There is a change in the taste, odor, or appearance of the well water, or if a problem occurs such as a broken well cap, inundation by floodwaters, or a new contamination ...

  • Can simple measures of labile soil organic matter predict corn performance?

    Organic matter is important for soil health and crop productivity. While an indicator of soil quality, a lot of organic matter is in extremely stable forms, and the nutrients in such forms are difficult for plants to use. The active, labile fraction, however, is a modest but important part of the organic matter. “The labile fraction is small – usually less than 20 or even 10 percent, ...

  • SEAL launches new range of digestion blocks

    SEAL Analytical will use WWEM 2016 to launch a new range of digestion blocks that it expects to “sell like hot cakes.” The new ‘SmartBlock II’ range and their sample vials are all manufactured by SEAL under the Thomas Cain brand. “This is important,” says SEAL President Stuart Smith. “By manufacturing the consumables we can guarantee their quality. The ...

  • Nitrogen recommendations based on crop reflectance

    Nitrogen fertilizer is usually applied in greater quantities to corn than almost any other crop. But when it’s applied in excess of requirements, loss of the excess fertilizer to the environment can contribute to degraded water quality. One of the challenges to making an appropriate nitrogen fertilizer recommendation is the potential variability in soil nitrogen availability that may occur ...

  • Bringing life back to dead zones

    Dead zones — those regions that can be found in the Great Lakes, Chesapeake Bay, and even the Gulf of Mexico — are a serious problem for U.S. waterways. These hypoxic zones, the result of excess nitrogen and phosphorus run off, can lead to algae blooms that can stifle aquatic life. Regulators are doing their part to reduce these dead zones by mandating the decrease of nutrient runoff ...

  • Is biochar the answer for ag?

    Scientists demonstrate that biochar, a type charcoal applied to soils in order to capture and store carbon, can reduce emissions of nitrous oxide, a potent greenhouse gas, and inorganic nitrogen runoff from agriculture settings. The finding will help develop strategies and technologies to reduce soil nitrous oxide emissions and reduce agriculture’s influence on climate change. A research ...

  • Monitoring diffuse pollution in EU river catchment areas

    In recent decades, discharges of pollutants from waste water treatment plants and industry have been successfully identified and in many cases reduced, but assessing inputs of diffuse pollution from land, and the degree of retention of pollutants, such as nitrogen and phosphorus, within surface water systems is harder to achieve. A recent study has compared different methods used to estimate ...

  • Can biochar help suppress greenhouse gases?

    Nitrous oxide is a potent greenhouse gas and a precursor to compounds that contribute to the destruction of the ozone. Intensively managed, grazed pastures are responsible for an increase in nitrous oxide emissions from grazing animals’ excrement. Biochar is potentially a mitigation option for reducing the world’s elevated carbon dioxide emissions, since the embodied carbon can be ...

  • SEAL Analytical expands US manufacture

    The laboratory instrument manufacturer SEAL Analytical has transferred the production of its market leading automated discrete analyzers, the AQ1 and AQ2, to the company’s facility in Mequon, USA. The move follows the acquisition of a block digestion business from Aim Lab Automation Technologies Pty Ltd. SEAL’s President Stuart Smith said: “Digestion is an essential part of the ...

  • Aerobic cometabolism of tetrachloroethylene (PCE)

    Tetrachloroethylene (PCE) is a problem contaminant because of its widespread use, potential toxicity and persistence in the environment. Like other chlorinated solvents, remediation of PCE in soil and ground water has proven to be very difficult. While there has been has been widespread success under anaerobic conditions, the application of bioremediation under aerobic conditions has not been as ...


    By CL Solutions, LLC

  • Silver nanoparticles could pose risk to aquatic ecosystems

    Silver nanoparticles are toxic to common bacteria at concentrations found in many aquatic environments across the globe, new research has found. Bacteria often form a key part of ecosystems and these impacts may be felt by the entire system, the researchers warn. Silver nanoparticles are between one and a hundred nanometres (nm) in size and are now used for their antimicrobial action in a wide ...

  • New technology makes segmented flow analyzer compact and easy-to-use

    Building on its reputation for innovation, SEAL Analytical has launched the 'AA1' – a fully automated analyser employing new technology based on segmented flow analysis for rapid, accurate, precise analysis of parameters such as Ammonia, Phosphate, Nitrate, Nitrite, Total Nitrogen, Total Phosphorous and Chloride. Typical applications include water, wastewater, soil, plant, fertilizer, food ...

  • How to produce 100% hygienic compost out of human excreta

    The main reason not applying human faeces and urine in compost is the fear that pathogens causes serious illness and sicknesses. We have to be sure that pathogens are effectively inactivated before we even think about reusing human excreta. Everybody agrees that if this goal could be achieved and human excreta could be reused in agriculture it would deliver enormous benefits. It would: ...


    By Aqua-Aero WaterSystems BV

  • SEAL Analytical focuses on reliable high-throughput analysis

    The SEAL Analytical booth (3831, 3931) at Pittcon 2016 will provide visitors with an opportunity to see the latest technologies in sample digestion systems and colorimetric nutrient analysis instruments. SEAL will feature their range of new AQ automated discrete analysers and segmented flow analyzers - for high-speed, greater capacity, improved reproducibility and greater flexibility. SEAL will ...

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