- Phosphorus is the third most limiting nutrient with respect to macronutrient uptake.
- Nitrogen and potassium are the only other essential plant food nutrients taken up in greater quantities.
Phosphorus plays a vital role in energy transfer, photosynthesis, nutrient transport, sugar metabolism, plant genetics, cell division and as a structural component of the plant. So no wonder professional agriculturists and garden hobbyists both consider phosphate to be so important.
Crops with adequate phosphorus show steady vigorous growth and earlier maturity. This means larger fruits and vegetables in the fall. Earlier maturing crops are less susceptible to summer drought, disease infection and frost.
Espoma® Rock Phosphate is the finest, highest grade, all natural rock phosphate available. It is far superior in total phosphate content to all other natural forms of rock phosphate including black and colloidal rock phosphate.
Organic source of phosphorus & micronutrients. Rock phosphate contains 32% total phosphate (P2O5). Phosphorus is an essential nutrient required by plants that is primarily responsible for healthy root development and fruit and flower production.
In addition, rock phosphate is rich in minor elements such as boron, zinc, nickel and iodine which plants need in small amounts for optimum growth.Long term, slow-release feeding, Rock Phosphate becomes naturally available as the plant needs it.
Plant roots give off carbon dioxide and certain organic acids which react with the rock phosphate in the soil, making it available for plant use.
Because Espoma® Rock Phosphate is ground to a fine powder, a sufficient part of it is immediately available to the plant because the particles are so tiny that the organic acids and carbon dioxide produced by the plant roots and bacteria in the soil can break them down quickly.
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