Plant Nutrition Flashcard

Front

A plant’s leaves will often turn yellow if the plant does not get enough nitrogen.

Back

True

Front

Phosphorus is very immobile in the soil.

Back

True

Front

When properly applied, solid and liquid fertilizers perform equally well.

Back

True

Front

Is erosion important in agriculture because it removes the B horizon?

Back

False

Front

Materials used to lower soil pH: sulfur, lime, and iron sulfate.

Back

True

Front

There are 10 pounds of _____ in a typical 100-pound bag of 5-10-15 grade fertilizer.

Back

Total nitrogen

Front

If green plants show a _____ color, this indicates a nitrogen deficiency.

Back

Yellow

Front

To aid in moisture retention, _____ matter is added to the soil because it holds many times its own weight in water.

Back

Mulch

Front

What percentage of a plant’s weight does water make up?

Back

90%

Front

Organic matter that has completely decomposed and is more or less stable with the soil environment is called:

Back

Humus