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  • 1 Tajoura Research Centre Tripoli (Libya)
  • 2 All Union Research Institute of Radiation Engineering USSR
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Instrumental neutron activation methods are suggested in order to carry out automatic analysis of fertilizers and plant samples for N, P, K and Si allowing for the investigation of more than 40 samples per 8 hours. The experimental errors do not exceed ±3% for N, ±6% for P, ±5% for K and ±15% for Si.