Soil

Front

The major nutrients that plants need are: Nitrogen, Potassium, Calcium, Nitrogen, Carbon dioxide, Oxygen, Nitrogen, Potassium, Phosphorus, Phosphorus, Titanium, Nitrogen

Back

Nitrogen, Potassium, Phosphorus

Front

In the presence of plenty of oxygen, what type of decay occurs and how is nitrogen converted?

Back

Aerobic decay occurs and nitrogen is converted into nitrate ions.

Front

If insufficient oxygen is present..

Back

anaerobic decay occurs forming ammonium ions.

Front

A hardpan is..

Back

hardened impervious soil layer

Front

How is lime used to regulate pH?

Back

Makes the soil more alkaline

Front

What causes eutrophication?

Back

excess nutrients in water

Front

Why is excess growth of algae a problem?

Back

It blocks the sunlight.

Front

Water pollution that leads to eutrophication is caused by..

Back

fertilizers

Front

What is the main source of Nitrogen?

Back

Atmosphere

Front

What is the name of the process that fixes Nitrogen into Ammonia?

Back

Nitrogen Fixation