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Autor:
G. A. Stupakova, E. E. Ignatyeva, S. A. Dengina, T. I. Shchipletsova, D. K. Mitrofanov, E. I. Vetrova, O. V. Kholiaeva
Publikováno v:
Measurement Standards. Reference Materials. 17:47-63
The author’s article presents information on the study of the stability of main indicators of fertility (mobile forms of phosphorus and potassium, organic matter) in different types of soil. Experiments were carried out on state reference materials