Neptune's Harvest Organic Crab Shell is an excellent dry organic source of NPK, Calcium (17%) and Magnesium (1%). A slow release fertilizer that is high in chitin, Neptune's Harvest Crab Shell promotes the growth of beneficial organisms in the soil and helps deter plant parasitic nematodes. The high calcium content reduces effects of fungal diseases such as blossom end rot and helps plants develop healthy, strong cells.
Suggested Uses: For use as a plant food in a wide variety of settings.
This Product Controls These Pests or Diseases: Use as a mechanical control for the Root Knot Nematodes (Meloidogyne sp).
Neptune's Harvest Crab & Lobster Shell can be worked into the soil, scratched into topsoil or placed around plants.
- Apply in early spring as soon as soil can be worked. For perennial crops, apply at the end of dormancy.
- Mix thoroughly with the soil or growing media, taking care not to apply in concentrated form directly to the roots.
- For trees and turf, apply directly as a top dressing.
|Neptune's Harvest Application Rates|
| Garden||3 lbs. per 100 square feet.|
| Field Applications||100 to 200 pounds per acre.|
| Row Crops||1 to 2 pounds per 100 feet of row.|
| Orchards||1/2 pound per inch of tree diameter.|
|Compost||3-6 ounces per cubic foot.|
| Turf||10 pounds per 1,000 square feet.|
|Potting Mixes||2% of total volume of the planting media.|
| Seedbed||1/2 - 1 pound per 100 square feet.|
| Bedding Plants||1 ounce per tray.|
| Bulbs||1/2 ounce mixed in soil under bulbs.|
| Fertilizer Mix||5-10% of total volume.|
Environment: Outdoors, Crops, Orchards & Vineyards, Nursery, Greenhouse, Grow Room, Hydroponics, Aquaponics, Container Plants, Houseplants, Vegetable Gardens
Storage: Store in original container.
SKU 1315006 ships via UPS Ground only.
Cannot Be Shipped To: AK,HI
Warning & Toxicities: Can affect people with shellfish allergies. Keep out of the reach of children. Do not ingest. Do not apply near water, storm drains or drainage ditches. Do not apply if heavy rain is expected. If applying this product to your lawn/garden, sweep any product that lands on the driveway, sidewalk or street back onto your lawn/garden.
Shelf Life: Indefinite
Active Ingredients/Guaranteed Analysis:
Derived from Crab & Lobster Shell Meal. Nitrogen derived from Crab & Lobster Shell Meal.
- Total Nitrogen (N)..................5.00%
- 0.75% Water Soluble Nitrogen
- 4.25% Water Insoluble Nitrogen
- Available Phosphate (P).......3.00%
- Calcium (Ca).........................17.0%
- Magnesium (Mg)....................1.00%
- 0.95% Water Insoluble Magnesium
- 0.05% Water Soluble Magnesium
Meets the requirements of the National Organic Program (NOP) for use in organic production.
Write a review
Apr 30, 2020 | By Jeffrey Lueck
Nov 26, 2019 | By dan carlton
Owner Response: Thank you for the feedback Dan! We have updated the site to reflect the current sizes being shipped and will keep a close eye on it moving forward.