Soil Basics
Soil Amendments & Media
Water & Plants
Nutrition & Fertilizers
Light & Temperature
100

The three main soil particles.

What are sand, silt and clay?

100

This type of soil amendment cannot contain meat and dairy waste.

What is compost?

100

The combined loss of water from soil and plants

What is evapotranspiration?
100

This is what N-P-K stands for.

What is Nitrogen, Phosphorus and Potassium?

100

The relationship between day and night length.

What is photoperiod?

200

This soil texture is considered ideal for growing plants

What is loam?

200

The name of the thousands-year-old decomposed sphagnum moss.

What is peat moss?

200

This type of soil water is available for plant use.

What is Capillary Water?

200

This nutrient deficiency causes yellowing of older leaves.

What is Nitrogen deficiency?

200

These plants require long hours of darkness.

What are Short-day plants?

300

The process that breaks down rocks into soil.

What is weathering?

300

Pine bark is an example of this type of soil amendment.

What is organic soil amendment?

300

The point when soil water is no longer available to plants.

What is permanent wilting point?

300

This nutrient deficiency causes purple coloring in leaves?

What is Phosphorus deficiency?

300

When growth stops due to high temperatures.

What is heat stall?

400

This soil structure allows water and air to move easily.

What is granular?

400

This white, volcanic rock absorbs water makes it usable for plants.

What is perlite?

400

This keeps plants upright and supports growth.

What is turgor pressure?

400

This is the amount of nitrogen in a fertilizer bag labeled 16-2-3.

What is 16 pounds?

400

A region defined by average minimum winter temperatures.

What is hardiness zone?

500

This helps soil retain nutrients and is represented by the acronym CEC. 

What is Cation Exchange Capacity?

500

The ideal percentage of organic matter in loam soil.

What is 5%?

500

The best way to manage this problem with the soil is leaching with water.

What is high salt level?

500

The mnemonic for essential nutrients.

What is C HOPKINS CaFe Mg – “C Hopkins Café is Mighty Good”?

500

The American Horticultural Society Heat Zone Map is divided into this many zones.

What is 12?