Additionally to traditional soil analyses, currently, we do and use also the circular soil chromatography analysis of Pfeiffer for looking a good diagnostic of the health and fertility of the soil by estimating its biological, chemical and physical properties. So, I was wondering about some natural alternatives for silver nitrate instead. Thanks so much in advance. Tropically regards; Salud....os from Hug....o
Yes, there are natural alternatives to silver nitrate in circular soil chromatography using the Pfeiffer method. While silver nitrate gives clear diagnostic patterns, it is toxic and costly. Safer options include ferric chloride (for reacting with organic matter), plant extracts like tea or red cabbage (rich in tannins and anthocyanins), and iron gall ink made from natural iron-tannin complexes. These offer eco-friendly, biodynamic-compatible ways to assess soil structure, humus content, and microbial activity. Though less standardized, they suit sustainable practices and educational settings well. A pilot comparison with silver nitrate is recommended for consistent interpretation. Warm saludos and best wishes!
Dr Balamurugan Krishnamoorthy Many many many thanks Dr Balamurugan, I do really appreciate you very prompt, clear and wise answer. We will try these alternative and friendly options. Later on, I will share with you our correspondent advances having a respective pilot comparison with AgNO3. Receive kind and tropical regards from Venezuela.
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