Sources of Phosphorus Fertilizer


Phosphorus is an important fertilizer for plants. It helps plants perform photosynthesis, and form oils, sugars and starches. Phosphorus also helps plants grow quickly and mature properly, and aids in blooming and root growth. There are several different ways to make sure your plants are getting plenty of phosphorus.

Rock Phosphate

  • Rock phosphate is often added to soil to make sure plants are getting enough of the mineral. Rock phosphate is a calcium ore found in the earth. Usually, the rock phosphate is mined, then ground. This product is then treated with sulfuric, phosphoric or nitric acid to produce phosphorus fertilizer.


  • Manure is commonly used for fertilizer, and this organic matter contains phosphorus. Many farmers use manure from their own cattle or horses to fertilize their crops. If you don't have access to farm animals, manure is also available in many garden centers or home improvement stores.

Bone Meal

  • Bone meal is another natural fertilizer that contains phosphorus. Bone meal is usually made from animal bones that are steamed and then ground. Purchase packages of bone meal at a garden center or home improvement store.

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