Horticulture Chapter 5 Soil and Plant Nutrition

True or False: Container media usually sacrifices nutrient holding capacity in favor of maximum root zone aeration.

• True

• False

The only positive way to find out if your lawn needs lime is by having a _____ _____.

• check drainage

• analysis

• soil testing

• growing medium

Potting mixes have _________ pore spaces to provide better aeration.

• small

• large

• medium

• round

Moving from a pH of 5.0 to pH 7.0 is an increase in alkalinity by a factor of _________.

• 10

• 50

• 68.4

• 100

pH affects nutrient uptake and can be modified, over time, by adding _________, ________ or ____________ __________.

• sulfur, lime, calcium carbonate

• silt, clay, organic matter

• hydrogen, water, sulfur ion

• limestone, soil, soluble ions

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Decomposed remains of living organisms are referred to as __________ __________.

• bark mulch

• mushroom compost

• pore space

• organic matter

Tags

NGSS.MS-LS2-3

Pore spaces hold _____ or _____ and _________ in spaces between particles

• air or oxygen, water

• food or water, oxygen

• potash or air, water

• sand or air, clay

Tags

NGSS.MS-ESS2-4

20-0-5 fertilizer contains no __________.

• Nitrogen

• Potassium

• phosphorous

• soil

Soils are comprised of particles of _________, _________, and __________

• sand, silt, clay

• air, water, potash

• moss, leaves, peat

• organic matter, bedrock, air

K stands for ___________.

• Nitrogen

• Phosphorous

• potash or potassium

• Oxygen