- Calcium (Ca)
- Important to filter other nutrients, aiding absorption
- Promotes strong cell walls & sturdy stems
- Used in the vegetative stage with N, decrease during flowering
- Deficiency produces cell-wall collapse (structural failure); curled leaf tips; stunting
- Use gypsum instead if your soil is alkaline
- Magnesium (Mg)
- Function: necessary for photosynthesis
- Deficiency produces yellowing on edges & between veins of older leaves
Recommended Product: Crushed Dolomitic Limestone (not pelletized)
- Determine how much to use by testing the pH of your soil
- Don't apply lime at the same time as you apply fertilizer, and try to do it two to three months prior to planting.
All the fertilizers you add are useless if the pH is too low or high because the nutrients get locked up in chemical forms the plants cant take in.