11 November 2017 1 10K Report

Dear experts,

I am searching for this procedure for chemical analysis of wood charcoal/ ash.

"Mineral N (ammonium & nitrate) Rayment and Higginson 1992"

From literature source I learn this procedure is,

1) Take 15 g soil in 100 ml 2 M KCl.

2) Shake for 1 hour

3) Filter and analyse with spectrophotometry

Kindly advice if this is correct procedure as per Rayment and Higginson 1992.

Thanking you in anticipation,

Regards

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