Minerals for Plant Growth Flashcards
Why are nitrates needed for plant growth?
What will be observed if a plant can’t get enough nitrates?
Contain nitrogen for making amino acids and proteins. These are needed for cell growth. If a plant can’t get enough nitrates it will be stunted and older leaves will turn yellow.
Why are phosphates needed for plant growth?
What will be observed if a plant can’t get enough phosphates?
Contain phosphorus for making DNA and cell membranes and they’re needed for respiration and growth.
Plants without enough phosphate have poor root growth and their older leaves are purple.
Why is potassium needed for plant growth?
What will be observed if a plant can’t get enough potassium?
To help the enzymes needed for photosynthesis and respiration.
If there’s not enough potassium in the soil, plants have poor flower and fruit growth and discoloured leaves.
Why is magnesium needed for plant growth?
What will be observed if a plant can’t get enough magnesium?
Needed in small amounts.
Magnesium is required for making chlorophyll (needed for photosynthesis).
Plants without enough magnesium have yellow leaves.
