Chapter 25: Plant Nutrition and Transport Flashcards Preview

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Flashcards in Chapter 25: Plant Nutrition and Transport Deck (21):
1

Where do plants mainly obtain hydrogen and oxygen from?

water

2

Where do plants obtain nitrogen from?

bacteria

3

Soil Solution

the solution of dissolved minerals (ions) in the water surrounding the plant roots

4

Essential element

if a plant is deprived of this, it experiences like separation anxiety and its normal routines are disrupted
can't be replaced by something else (can't get another you in a minute)

5

Macronutrients

a type of essential element
concentration of at least 1 gram per kilometer in dry matter
NItrogen
Phosphorous
Potassium
Sulfur
Calcium
Magnesium

6

Micronutrients

Concentrations of less than .1 g/kg of dry matter
Iton
Chlorine
Manganese
Zinc
Copper
Nickel
Molybdenum

7

Fertilizer

supplements that provide missing nutrients

8

Hydroponically

Grow plants in vats of water and random stuff (read: nutrients)

9

What is super cool about soil?

Anchorage
that soil solution
O2 in the spaces in soil
the services of other soil organisms, including bacteria

10

Soil profile

like all soils have a facebook
certain horizontal layers that almost all of them have

11

horizons

horizontal soil layers
several are recognizable in many soil types

12

A horizon

topsoil
supports plant's mineral and nurtrient needs
living and dead organic matter

13

B horizon

subsoil
accumulates materials from the topsoil above and parent rock below
like a collector

14

C horizon

parent rock
soil comes from this
rocks

15

Mechanical Weathering

physical breakdown of materials by wetting drying and freezing
breaks rock into soil particles

16

Chemical Weathering

the alteration of chemistry in materials of the rocks by oxidation, water, and acids
breaks rock into soil

17

Fertility

ability of soil to support plant growth

18

Leached

soil solution washed away from A horizon

19

Loam

soil that is a perfect mix of sand silt and clay

20

Humus

what soil organisms break dead and organic matter down to
used by microbes

21

strigolactones

stimulate rapid growth of fungal hyphae toward the root
prodcuts of some genes give