Please enable JavaScript.
Coggle requires JavaScript to display documents.
D&D Topic Ideas - Coggle Diagram
D&D Topic Ideas
Plant growth
What is needed for plants to grow?
light (artificial or sunlight)
water
absorbed by roots from soil
carbon dioxide
nutrients
nitrogen, potassium, phosphorus
absorbed from soil
suitable temperature
soil
fertiliser
What factors affect plant growth?
rate of osmosis
type of plant
pressure
amount of light
temperature
surface area t
shade
not enough sunlight
too much sunlight
soil nutrients
deficiency
acidity
absorption
compost
too much/too little water
insects and pests damage/eat plants
over/under fertilisation
temperature
good temperature promotes efficent photosynthesis rate
Lunar Soil
What are the differences between Lunar and Earth soil?
lunar lacks organic matter and is dry
lunar made of crushed rock, minerals and glass fragments
lunar lacks water and oxygen
earth soil softens with weathering, lunar soil remains quite sharp
What happens to plants that grow in this soil?
express genes that show stress
salt and metal toxicity
red pigment
reduced mass
require nutrient solution
slower growth
metabolism and cellular activity affected
stunted leaves and roots
What needs to be changed to make lunar soil suitable for growth?
it lacks a soil structure
lacks organic matter
cannot hold water
high density
fine particles
What materials can be added to maximise growth?
algae
promote soil fertility
straw
gives physical soil structure
manure
contains organic matter
gives physical soil structure
contain nutrients (e.g. nitrogen, phosphorus)
microbes
enhance growth
facilitate nutrient absorption
improve stre