Soil Science (Ag Foundations)

Front

This term indicates the relative content of particles of various sizes, such as sand, silt and clay in the soil.

Back

texture

Front

Which particle is the most porous and allows for the most water to travel between them? Options: silt, sand, clay, loam

Back

sand

Front

This refers to a type of water that can escape from the soil.

Back

gravitational

Front

What type of soil water forms as a very thin film surrounding soil particles and is generally not available to the plant? It is bound so tightly to the soil by adhesion properties that very little of it can be taken up by plant roots?

Back

hygroscopic

Front

What type of soil water is used by plants? Options: hygroscopic, capillary, gravitational, all types of soil water

Back

capillary

Front

Which of the following is not a primary nutrient required for plant growth? Calcium, Phosphorus, Potassium, Nitrogen

Back

Calcium

Front

Which of the following are the macronutrients that can be absorbed atmospherically? Phosphorus, Nitrogen and Carbon, Carbon, Nitrogen, Potassium, Nitrogen, Oxygen and Carbon, Carbon, Oxygen, Hydrogen

Back

Carbon, Oxygen, Hydrogen

Front

Which element makes plant green? Options: Potassium, Nitrogen, Phosphorus, Magnesium

Back

Nitrogen

Front

Phosphate deficiency is seen by what coloring of the plant?

Back

purple

Front

Which primary plant nutrient promotes strong root growth in young seedlings?

Back

Phosphorus