Eden Soft Rock Phosphate
14% Available Soft Rock Phosphate
Free shipping in Continental USA only. Does not include Alaska, American Samoa, Micronesia, Guam, Hawaii, Marshall Islands, Northern Mariana Islands, Palau, Puerto Rico, US Virgin Islands, Armed Forces Americas, Armed Forces Europe, or Armed Forces Pacific.
BlueGold® Calcium-Phosphate is also called Soft Rock Phosphate or Colloidal Phosphate.
It is the soft clay-like material that lies between the various layers of Hard Rock Phosphate and is an excellent source of Phosphate and Calcium for your plants. Soft Rock Phosphate should not be confused with Hard Rock Phosphate. Hard Rock is also known as Tri-Calcium Phosphate. It is often treated with Sulfuric Acid to produce Super Phosphate, reducing the Phosphate to a Water-Soluble form with caustic chemical additions to the detriment of structure and microbial colonies. Soft Rock Phosphate is washed off and accumulated in settling ponds during the mining process. The Phosphate source is completely natural and is, in fact, a genuinely remarkable fertilizer with a massive CFU/g microbial profile. Although both products contain Calcium and Phosphate, the nutrients in Soft Rock Phosphate are more readily available for your plants to use.
No mineral uptakes take place without available Phosphate. Phosphate does not move or uptake without Calcium. Soft Rock Phosphate is a quick-acting source of Phosphorous already in a Phosphate Calcium blend. Raw Phosphate minerals are tightly bound and require a slightly acidic soil (6.4 pH) and beneficial microbial activity to move properly in soil strata and uptake into plants.
Natural Phosphate stays in the soil where it is put and moves very little. All movement is achieved through microbial activity (a major deficient coast to coast in the United States) and through organic matter, the throttle for water (water is the carrier of many things). Unlike chemically processed Hard Rock Phosphate, Soft Rock Phosphate is insoluble in water. It will not leach away and therefore is long-lasting.
Great quality, no one else sells this stuff at these quantities.