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Determination of some Basic soil characteristics of Bulgarian arable soils. comparative study of two methods for potassium and phosphorous extraction

autorzy: Bernadeta Jonykiene, Daina Abukauskaite, Zenona Orantaite, Pranciška Vaiciunaite

Soil diversity of Bulgarian soils is due to the specific climatic, biotic, abiotic and anthropogenic factors. Several well studied methods for different soil physical and chemical characteristics are established. However they provide different data and a comparative study is of interest. All of the samples in this project were arable soils, collected from different regions of Bulgaria. The obtained results for mechanical composition, active acidity (pH), cation exchange capacity, electrical conductivity, organic matter content, mineral nitrogen, potassium and phosphorus are presented. The results for potassium and phosphorous determination are compared as two different methods for extraction were used. A fertility index is presented and compared. The analytical characteristics of both methods for determination of available forms of phosphorus and potassium are evaluated.

Środowisko / Chemia / Biotechnologia / Nanotechnologia

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