Lesson 7 - Biomes produce food Flashcards
(29 cards)
Agricultural Yield
The agricultural output per hectare of land eg crop yields, milk yields.
What is a hectare?
A hectare is a measurement of area. It is 10 000 square metres.
How much yield does corn have?
5.2
how much yield does rice have?
4.4
how much yield does wheat have?
3
how much yield does soybean have?
2.5
Why is agricultural yield important?
Agricultural yield is important because if you can increase the yield (amount produced
per hectare), then you don’t have to use as much land to produce the same amount of
food/fibres.
What has 77 percent of food production been because of?
77% of the increase in food
production has been because we are producing more per hectare of the land we already use.
What are the enviromental factors that influence agricultural yields?
- Temperature
- Water availability
- Soil
- Topography
Best Average Daily
Temperature for wheat
20-25
maximum average wheat temperature:
32-34
minimum average wheat temperature:
5
Best Average Daily
Temperature for corn
22-25
maximum average temp for corn:
20
minimum average temp for corn:
18-22
best daily avg temperature for potato
15-20
maximum avg temperature for potato
28-34
minimum avg temp for potato
12
best daily avg temp for soybean
25-28
maximum avg temp for soybean
37-40
minimum avg temp for soybean
10-14
What happens when there is a drought?
When there is a drought, the amount produced per hectare generally goes down.
What nutrients do plants need?
They need nutrients like:
- Nitrogen
- Phosphorous
- Potassium
what is ph level?
how acidic the soil is
