Soil Readily Retains Positively Charged Ions

SOIL READILY RETAINS POSITIVELY CHARGED IONS [Pg.527]

Decaying matter in humus contains many carboxylic acid and phenolic groups, which at a typical soil pH are ionized to negatively charged carboxylate and phenolate ions. So, like mineral particles, humus helps retain positively charged nutrients. [Pg.527]

Organic matter and living organisms are important components of topsoil. [Pg.527]

The negatively charged surfaces of soil mineral particles and humus help retain positively charged nutrient ions. [Pg.528]

Why is soil able to retain ammonium ions, NH4+, better than nitrate ions,N03 [Pg.528]

Topsoil organic matter, living organisms, rock particles [Pg.527]

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