Fertilizers
Calcium Nitrate (15.5-0-0)
A source of calcium and nitrogen for crops with a demonstrated need.
Explore the guideFertilizers
Match this name to your package.01 / UNDERSTAND
What is Calcium Nitrate (15.5-0-0)?
A source of calcium and nitrogen for crops with a demonstrated need.
Start with the right purpose
Check moisture management as well as nutrient supply when investigating blossom-end rot.
Before you begin
Do not combine calcium nitrate with phosphate or sulphate fertilizers in a concentrated stock solution. Investigate watering and root conditions when fruit shows blossom-end rot.
02 / MEASURE
How much to apply
Amounts from the supplied product instructions.
SUPPLIED APPLICATION RATE
Dissolve 5 g (1 tsp) in 4 L (1 gal) of water. Apply to the soil every 1–2 weeks during the growing season.
Source: Guide_Calcium Nitrate (15.5-0-0).pdf. These are the supplied guide’s rates, not independently verified manufacturer directions. Follow the exact product label if it differs.
03 / APPLY
How to apply
Directions from the supplied product guide.
Dissolve 5 g (1 tsp) in 4 L (1 gal) of water. Apply to the soil every 1–2 weeks during the growing season.
Do not combine calcium nitrate with phosphate or sulphate fertilizers in a concentrated stock solution. Investigate watering and root conditions when fruit shows blossom-end rot.
04 / TIMING
When to apply
Apply during vegetative growth and continue through early fruit development. Ideal for tomatoes, peppers, cucumbers, strawberries, lettuce, and many other crops.
Use the interval stated in the supplied directions above. Where none is specified, follow the exact product label.
Record the amount and application date. Consider your growing conditions before repeating.
05 / GOOD HABITS
Tips & things to avoid
Helpful habits
- Check moisture management as well as nutrient supply when investigating blossom-end rot.
- Keep the package label and record the date, amount and method used.
- Do not combine calcium nitrate with phosphate or sulphate fertilizers in a concentrated stock solution. Investigate watering and root conditions when fruit shows blossom-end rot.
Things to avoid
- Do not choose an amount from the product name alone; confirm the formulation and intended use.
- Do not transfer the dose or interval from a different product.
- Do not treat a general guide as a substitute for the exact product label.
06 / QUICK ANSWERS
Common questions
How do I choose the amount?
Use the supplied amounts in the dosage panel above for the stated application. Match the product and growing method to your package.
What should I check first?
Check moisture management as well as nutrient supply when investigating blossom-end rot.
Can I repeat the same application?
Follow the repeat interval in the supplied directions, where stated, and check the exact product label.
What needs particular care with this product?
Do not combine calcium nitrate with phosphate or sulphate fertilizers in a concentrated stock solution. Investigate watering and root conditions when fruit shows blossom-end rot.
Sources and rate verification
Based on your saved instructions: Guide_Calcium Nitrate (15.5-0-0).pdf. The saved review does not verify an exact product dose. These references support general principles, not manufacturer approval.
Removed the implication that routine calcium nitrate reliably prevents blossom-end rot. The 5 g per 4 L schedule needs a label. Keep calcium separate from phosphate/sulphate concentrates.
07 / RELATED GUIDES
Explore other product guides
Compare purposes before choosing a product. These are not instructions to combine products.
GROW BETTER. TOGETHER.
Need help with this product?
Tell us what you are growing and send the product label so we can help you find the right instructions.