男女无遮挡羞羞视频免费网站

  • <track id="1drpo"><ruby id="1drpo"></ruby></track>

  • Quick navigation
    Fertilizer Products Testing

    Fertilizer refers to a kind of material that provides one or more essential nutrient elements for plants, improves soil prope

    detail intruduction

    Fertilizer refers to a kind of material that provides one or more essential nutrient elements for plants, improves soil properties and improves soil fertility, and is one of the material bases of agricultural production.It has the effect of enhancing soil fertility and increasing crop yield. It shall be developed and produced by fertilizer production enterprises and meet the requirements of national, industrial or enterprise standards.

    SST environment division is qualified to provide objective, fair and efficient testing services to customers.

    Fertilizer ?Types

    Testing Items

    Compound fertilizer material

    Iron, ?copper, molybdenum, zinc, manganese, sulfur, magnesium, calcium, potassium, ?nitrogen, boron, biuret, chloride ion content, chloride ion mass fraction, ?particle size, free water content, water content

    Organic fertilizer

    Total ?chromium, total cadmium, total arsenic, total lead, total mercury, mass ?fraction of organic matter, crude ash, total organic matter, zinc

    Organic-inorganic compound fertilizer

    Total ?nitrogen, phosphorus, potassium, organic matter, pH, pH, mass fraction of ?organic matter

    Microbial fertilizer

    Active bacteria count, water content, cellulase activity, ?fineness, protease activity, organic matter

    Foliar fertilizer

    Content ?of copper, iron, molybdenum, manganese, zinc and amino acid

    Slow-release fertilizer

    Mass fraction of insoluble nitrogen in hot ?water, activity coefficient, mass fraction of insoluble nitrogen in cold ?water and urea nitrogen


    男女无遮挡羞羞视频免费网站