What are the essential mineral nutrients?
Macronutrients: nitrogen, phosphate, potassium, calcium, magnesium and Sulphur.
Micronutrients: boron, chloride, copper, iron, manganese, molybdenum, nickel and zinc
Essential or beneficial for some plant species, not all: silicon, sodium, cobalt
What is the importance of phosphate to Plants?
Phosphate fertilizers one of the top 3 nutrients of the total 17 nutrients scientists have identified as essential to good plant growth. Phosphates are lost from soil through repeated harvesting activities. The addition of phosphate fertilizer helps produce healthy, dark green plants and enhances transfer of energy within cells, which stimulates early plant growth and maturity.
How to apply Rock Phosphate?
It is traditional to apply Rock Phosphate in Spring tillage but fall applications can be even better. Application rates will vary according to usage, soil type and condition. Also, adding rock Phosphate to compost will add available nutrients for plants.