- Write the balanced equation for the preparation of “Dickman and Bray’s Reagent”.
- Discuss about the method of detemination of available phosphorus in the soil by Bray’s method.
- How is NH4+ held in the soil, and how can it be extracted?
- Discuss about the various methods for the estimation of phosphorus in the soil.
- Compare between the Bray-Kurtz P1 and Mehlich-3 Tests for the estimation of phosphorus.
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