Water
Preventing erosion
Soil Horizon
Structure
Soil
100

A water-bearing rock formation

Aquifer

100

A material placed on the soil surface to break the fall of raindrops

Mulch

100

Water soaking in and moves through the soil

Percolation

100

Refers to the tendency of soil particles to cluster together and function as soil units called aggregates

Soil Structure

100

Components that achieve one or more purposes of the mixture

Active Ingredients

200

Occurs as layers of soil are removed from the land

Sheet Erosion

200

Conducting all operations across the slope

Contour Farming

200

This horizon is on the surface and is composed of organic matter and a small amount of mineral matter. 

O Horizon

200

Means addition to or change in soil

Soil Ammendment

200

Diluted mixtures of fertilizer used when plants are transplanted 

Starter Solutions

300

A strip of grass growing in an area of a field where water erodes the soil surface

Grass waterway

300

Alternating strips of row crops with strips of close growing crops

Strip Cropping

300

This Horizon is located near the surface and consist of mineral matter and organic matter 

A Horizon

300

Is sometime referred to as sourness

Acidity

300

The form of Nitrogen used by plants

Nitrate

400

The process of wearing away of soil

Erosion

400

Planting different crops in a given field every year

Crop Rotation

400

Below the A Horizon and referred to as subsoil

B Horizon

400

Is referred to as sweetness

Alkalinity

400

The plant roots hang in the air and are misted regularly with a nutrient solution 

Aeroponics

500

The practice of growing plants without soil and in water is called

Hydroponics

500

Any Material that supplies nutrients for plants

Fertilizer

500

Below the B Horizon and is composed of mostly parent material.

C Horizon

500

Neither acidic or alkaline

Neutral

500

Medium sized mineral particles

silt