Temperature correction factor for DTPA-extractable Zn - Baloch, Nazar Muhammad;Memon, Mehrunisa;Gandahi, Allah Wadhayo
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DTPA (diethylene triamine penta-acetic acid) is one of the common extractant used for the determination of available micronutrients (i.e. zinc) in soil. Laboratory temperatures vary from 15 to 35 oC during winter and summer, and may adversely affect the reproducibility of extractable zinc. By studying the effect of temperature of extractant on the DTPA-zinc, the resulting equation (Y=0.005+0.038x) giving correction factor Y can be successfully used by soil testing laboratories to convert the DTPA-zinc at any temperature (x) to a standard temperature of 25oC.

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Produktbeschreibung
DTPA (diethylene triamine penta-acetic acid) is one of the common extractant used for the determination of available micronutrients (i.e. zinc) in soil. Laboratory temperatures vary from 15 to 35 oC during winter and summer, and may adversely affect the reproducibility of extractable zinc. By studying the effect of temperature of extractant on the DTPA-zinc, the resulting equation (Y=0.005+0.038x) giving correction factor Y can be successfully used by soil testing laboratories to convert the DTPA-zinc at any temperature (x) to a standard temperature of 25oC.
Autorenporträt
Nazar Muhammad Baloch a Research Scholar of Department of Soil Science, Sindh Agriculture University, Tandojam is currently engaged in activities relating to agriculture advisory service to small scale farmers. Both co-authors Dr. Mehrunisa Memon and Dr. Allah Wadhayo Gandahi belong to the same department and are part of this venture.