Dr. Earth has created a superior blend of essential plant nutrients that your tomatoes crave. The organic formula contains a 5-7-3 NPK macro-nutrient mix and a rich mix of wild-caught Alaskan fishbone and meal, feather meal, kelp meal, alfalfa meal, soft rock phosphate, mined potassium sulfate, humic acid, and seaweed extract.
In a phosphate molecule, each phosphorus atom has four oxygen atoms surrounding it. More specifically, tomato plants can only absorb inorganic phosphates; or phosphates that are not bound to carbon molecules. The plants are able to obtain these phosphates naturally through the phosphorous cycle. During the phosphorus cycle, minerals and
N, phosphate, and potash as a percentage of the contents. For example, suppose your fertilizer has the numbers 10-5-8 (an unconventional fertilizer but useful as an example). This fertilizer contains 10% (1st number) elemental nitrogen, 5% (2nd number) available phosphate (P2O5) and 8% (3rd number) water soluble potash (K2O). The remainder of
Phosphorous is mainly used in flower, fruit and seed production, but a deficiency will cause slow growth and a purplish hue to the leaves. It is fairly stable in the soil and does not leach out of the root zone. Sources of phosphorous include bonemeal and rock phosphate.
Weathering of rocks and minerals release phosphorus in a soluble form where it is taken up by plants, and it is transformed into organic compounds. The plants may then be consumed by herbivores and the phosphorus is either incorporated into their tissues or excreted.
A natural source of Phosphorus and Calcium Down To Earth Rock Phosphate is essential for building soil phosphate levels for long-term plant productivity and for preventing calcium deficient soils. It should be applied to soils prior to planting and can be mixed with compost or