Which nutrient is an anion commonly discussed in class?

Prepare for the Rangeland Soil Exam. Study with flashcards and multiple choice questions, each offering hints and explanations. Ensure success in your test!

Multiple Choice

Which nutrient is an anion commonly discussed in class?

Explanation:
In soils, nutrients differ by charge, which changes how they behave. An anion is a negatively charged ion, and nitrate fits this. Nitrate has the formula NO3-, making it an anion. The other options are positively charged ions (calcium is Ca2+, potassium is K+, and ammonium is NH4+), so they are cations. Because anions aren’t held strongly by the negatively charged soil surfaces, they move with water and can leach downward more readily. This mobility is why nitrate is frequently discussed in soil and rangeland nitrogen management.

In soils, nutrients differ by charge, which changes how they behave. An anion is a negatively charged ion, and nitrate fits this. Nitrate has the formula NO3-, making it an anion. The other options are positively charged ions (calcium is Ca2+, potassium is K+, and ammonium is NH4+), so they are cations. Because anions aren’t held strongly by the negatively charged soil surfaces, they move with water and can leach downward more readily. This mobility is why nitrate is frequently discussed in soil and rangeland nitrogen management.

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