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  1. No Access

    Article

    An investigation of new commercial samples of Methyl Green and Pyronin Y

    New commercial samples of Methyl Green (Gurr Certistain), Pyronine G (Gurr Certistain) and Pyronin Y (Polysciences) have been investigated using spectrophotometry, thin layer chromatography and nuclear magneti...

    H. Lyon, P. Jakobsen, P. Høyer, A. P. Andersen in The Histochemical Journal (1987)

  2. No Access

    Article

    Comparisons of the fertilizing and liming properties of lime-treated sewage sludge with its incinerated ash

    Two field experiments were conducted to compare the fertilizing and liming properties of dried lime-treated sewage sludge with its incineration product (ash). One experiment used a mixture of ryecorn and ryegr...

    P Jakobsen, IR Willett in Fertilizer research (1986)

  3. No Access

    Article

    Fertilizer and liming value of lime-treated sewage sludge

    A field experiment was conducted with lucerne on a strongly acidic and phosphorus deficient soil to determine the liming and phosphorus and nitrogen fertilizer value of an undigested, lime-treated sewage sludg...

    IR Willett, P Jakobsen, KWJ Malafant in Fertilizer research (1986)

  4. No Access

    Article

    Standardized Methyl Green—Pyronin Y procedures using pure dyes

    Fully standardized Methyl Green—Pyronin methods are presented. Pure Pyronin Y and purified Methyl Green or Ethyl Green are used either simultaneously in one dye bath or are used as a sequence of Pyronin Y and ...

    P. E. Høyer, H. Lyon, P. Jakobsen, A. P. Andersen in The Histochemical Journal (1986)

  5. No Access

    Article

    Nitrogen-induced boron deficiency in lucerne

    In a glasshouse experiment with a boron deficient soil the application of nitrogen was found to decrease the boron concentration and boron uptake by lucerne (Medicago sativa). Without added boron, nitrogen applic...

    I. R. Willett, P. Jakobsen, B. A. Zarcinas in Plant and Soil (1985)