Specialty Fertilizers + Ingredients Available at Dirt Works
A calcium carbonate mineral (like limestone) that comes from seashells, such as oyster shell. It is used in lieu of lime in situations where the soil is already high in magnesium, and where dolomite (high magnesium limestone) is the only liming material available.
||Allow three weeks for delivery
A hydrated sodium calcium aluminosilicate ground rock with other essential trace elements.
Black Rock Phosphate - Greensand & Bone Char
A high carbon black rock phosphate, semi-fine, dustless, sand like texture.
Bone Char is calcined (burned) bone meal which has until recently been used primarily for water purification and refining sugar. Bone Char 0-16-0 contains more than 16% available phosphate (P2O5) and 32% total phosphate. It is OMRI listed and can be applied without restriction on certified organic farmland. Bone Char 0-16-0 is currently less expensive than phosphate rock and significantly less is needed per acre to supply the same amount of available phosphate. The consistency of Bone Char 0-16-0 is fine, like table salt and its density is ~80 pounds per cubic foot.
|Bone Meal 4-12-0
All natural source of phosphorous; 100% pure bone meal, with no additives, also contains organic nitrogen.
Cottonseed Meal (6-1-1)
An excellent source of nitrogen for shrubs and trees. Can be finely sprinkled under the branch spread area of the tree or shrub. Cottonseed Meal is the ground meal from cottonseeds. Its analysis is 6-1-1. The nitrogen is almost 85 percent water insoluble. Cottonseed meal will acidify soil at a value of 9# CaCO3 (calcium carbonate or pure lime) per 100#. >In other words, it takes 9# of lime to neutralize the acidity caused by 100# of Cottonseed Meal. See also Vegetable Protein Meals in the General Information Section. Cottonseed meal is a feed grade material. Apply about 5 lbs./100 ft.2 for planting beds.
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Crab Shell (2.5-3-.5) Ca 23
A good fertilizer and substitute for bonemeal, due to it's high concentration of calcium, although it isn't so high in phosphorous. tomatoes enjoy a healthy dose of crab shell due to it's high calcium content. Indoor plants like Geraniums will like it as well. It breaks down very slowly and looks just like crushed up crab shells when you open the container. Will not burn the soil or harm plants in any way. No specific application rates are recommended for this product. Depending on need, you can apply between 500 and 2,000 lbs per acre. A soil test is the determinant for any fertilizer application however. 1 cup per 20 quarts of potting soil works for transplants and repotting house plants. Crab shell is also high in chitin, which promotes the growth of chitin eating bacteria. The exoskeletons of fungus and nematodes eggs, as well as the jaw structures of some garden pests like the japanese beetle grub are high in chitin. Crab shell, when added to the soil, helps create a hostile environment for the fungus and nematodes by feeding the biological life that eats the chitin based organisms. It is not classified as a fungicide or a nematocide even though it is known to have these properties. Used as an additive in poultry feeds it has been known to improve shell integrity due to it's concentration of calcium.
Sorry but sales of this product are suspeneded until we can find a reliable source for it.
|Dried Blood 12-0-0
A safe (slow and steady) source of organic nitrogen, produces more vigorous plants with deeper green color and larger, more beautiful blooms.
Special order. Call for availability
*Used as fertilizer and animal feed
Calcium Sulfate with 22-23% available calcium and 15-18% sulfur. Pelletized to work easily in a broadcast spreader. It loosens heavy soils, aids soil aeration and water percolation. Leaches out excessive amounts of sodium and magnesium. Can counteract winter salt damage. Good for roadside gardens.
||Peanut Meal (6-1-1)
Organic fertilizer derived from peanuts. Often used as an ingredient in other combined formulas of organic fertilizer.
|By the Pallet