Environmental & Analytical Toxicology

Åsgeir RA

Publications

• Research Article
  Long-Term Effect of Phosphate Fertilization on Cadmium Uptake by Oat and its Accumulation in Soil
  Author(s): Bal Ram Singh, Dependra KC and Åsgeir RABal Ram Singh, Dependra KC and Åsgeir RA
  
  Phosphate fertilizers contain varying amounts of cadmium (Cd) and other heavy metals as contaminants from phosphate rock (PR). Periodic applications of these fertilizers could result in measurable accumulations of Cd in soils and in harvested crops. A long term field study for fifteen cropping seasons (1992-2006) was conducted on an experimental plot located at the Norwegian University of Life Sciences (Ås, Norway) to evaluate the effect of application of cadmium enriched phosphate fertilizer on Cd uptake by Oat (Avena sativa) and its accumulation and availability in soil. Treatments consisted of three NPK fertilizer sources containing 1, 90, 381 mg Cd kg-1 P and applied at the rate of 0.03, 2.7, 11.43 g Cd ha-1yr-1, respectively. Surface soil samples (0-20 cm), collected after harvesting of oat in 1992, 1995, and 2006, and were analyzed for total and extractable Cd, pH, dissolve.. Read More»
  DOI: 10.4172/2161-0525.1000516

  Abstract PDF