Chapter 6

Question 0

Edaphology

Answer 0

Deals with the influence of of soil and media on the growth of plants

Question 1

Growing medium

Answer 1

Material in which roots of plants grow

Question 2

Nutrients

Answer 2

What roots absorb from the medium and water

Question 3

Anchor

Answer 3

Keeps the plant from falling over

Question 4

Pore spaces

Answer 4

Air spaces between growing medium particles which allows oxygen to reach the plant roots

Question 5

Soil amendment

Answer 5

Anything added to soil or applied to the surface to improve plant growth

Question 6

Soil

Answer 6

Top few inches of the earths surface that provides plant growth

Question 7

Soilless medium

Answer 7

No topsoil

Question 8

Hydroponics

Answer 8

Method of growing plants where the nutrients are provided by a nutrient solution

Question 9

Nutrient solution

Answer 9

Water and dissolved nutrient salts

Question 10

Sand culture

Answer 10

Growing plants in sterilized sand with drop irrigation

Question 11

Gravel culture

Answer 11

Irrigating plants grown in gravel for mechanical support

Question 12

Bag culture

Answer 12

Uses a plastic bad filled with substrate such as Rockwell, peat lite, and sawdust. Drip culture is used

Question 13

Aeroponic system

Answer 13

Plant roots suspended in the air with a fine mist of oxygen rich nutrient solution sprayed on them at regular intervals

Question 14

Continuous flow system

Answer 14

Using shallow pools with flow panels containing plants floating at the surface

Question 15

Nutrient film technique

Answer 15

Recirculating shallow stream of nutrient solution that moves through channels in which plants grow

Question 16

Mineral materials

Answer 16

Come from organic sources

Question 17

Organic matter

Answer 17

Decayed remains of plants and animals

Question 18

Soil texture

Answer 18

Proportion of sand, silt, and clay

Question 19

Soil structure

Answer 19

Physical arrangement of soil particles

Question 20

Soil aeration

Answer 20

Movement of atmospheric air into the soil

Question 21

Soil compaction

Answer 21

Occurs when soil is pressed into a relatively dense mass

Question 22

Wear

Answer 22

Physical deterioration of of a plant community resulting from excessive traffic

Question 23

Soil profile

Answer 23

Verticle section of soil at a particular location

Question 24

Parent material

Answer 24

Unconsolidated mass of rock material or peat from which the soil profile develops

Question 25

Thatch

Answer 25

Layer of organic residue above soil surface

Question 26

Macronutrients

Answer 26

Most important nutrients in plant growth

Question 27

Micronutrients

Answer 27

Essential for plant growth, need less than macronutrients

Question 28

Soil tests

Answer 28

Determine what nutrients are present in the soil

Question 29

Chlorosis

Answer 29

Yellowing of the green part of the plant

Question 30

Fertilizer

Answer 30

Any material used to provide nutrients for the plant

Question 31

Complete fertilizer

Answer 31

Contain all three primary fertilizer nutrients (nitrogen, phosphate, potash)

Question 32

Active ingredient

Answer 32

Total percentage of nutrients being added

Question 33

Inert ingredient/filler ingredient

Answer 33

Allow deposition of the fertilizer

Question 34

Fertilizer analysis

Answer 34

Compositing ion of the active ingredient in the fertilizer

Question 35

Fertilizer ratio

Answer 35

Least numerical representation of the fertilizer

Question 36

Fertigation

Answer 36

Application of fertilizers through an irrigation system