Slow Release Or Control Release Fertilizer
Slow release fertilizers are the total opposite of quick release fertilizers, in that these types of fertilizers release their components very slowly, which means that plants can get the full benefits from this kind of fertilizer.
Slow release fertilizers are broken down over a period of time with heat and moisture, unlike quick release fertilizers. Slow release fertilizers are considered to be safe because of their slow release, they will not burn plants.
Plants like potted plants that are grown in nurseries, hanging baskets, and interior plantscape benefit greatly from this type of fertilizer.
When I was an interior plantscape technician many years ago, one of the things that I did along with my colleagues was to make it a practice to use this type of fertilizer.
The advantages of slow release
- When using this type fertilizer to fertilize grass there is more uniform growth.
- They are less likely to burn or harm plant life or grass.
- Because of their chemical structure, they are not needed as frequently.
- There may be little chance of leaching(dissolving quickly).
- It can save labor or cut down on labor costs.
The disadvantages of slow release fertilizer
- They are more expensive than quick release fertilizers.
- Because of their structure, plant nutrients are not made available right away because as moisture and heat make contact with the soil, they release nutrients over a period of time.
- In cold weather, they will not be as effective in that they need some heat to release nutrients.