publication . Article . 2012

EFFECTS OF NITRIFICATION INHIBITORS ON MINERAL NITROGEN DYNAMICS IN AGRICULTURE SOILS

Ferisman Tindaon; Gero Benckiser; ohannes Carl Gottlieb Ottow;
Open Access English
  • Published: 01 Oct 2012 Journal: AGRIVITA Journal of Agricultural Science (issn: 0126-0537, Copyright policy)
  • Publisher: Universitas Brawijaya
Abstract
Experiments were conducted under laboratory conditions to elucidate the effect of three nitrification inhibitors viz, 3.4dimethylpyrazo-lephosphate (DMPP), 4-Chlormethylpyrazole (ClMP) and dicyandiamide (DCD) on mineral nitrogen dynamics of (NH4)2SO4 in soil incubated at 25oC in soils. The quantitative determination of ammonium, nitrite and nitrate were carried out spectrophotometrically, while potential denitrify-cation capacity (PDC) was measured gas chromatographically. DMPP, ClMP and DCD were used on recommended rates of 90kg N ha-1 corresponding to 0.36µg DMPP; 0.25µg ClMP and 10µg DCD g-1 dry soil. In all treatments, the influence of 1, 10, 50, 100, 250 an...
Subjects
free text keywords: nitrification inhibitors, mineral nitrogen dynamics, Agriculture, S, Plant culture, SB1-1110
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