Research Objectives

  1. To determine the concentration and form of phosphate in pore-water of lime- and micronutrient-amended and un-amended soilless substrates used to produce containerized crops when fertilized with liquid nitrogen, phosphorus and potassium.
  2. To determine the minimum concentration of phosphorus needed in pore-water to produce maximal growth of selected woody ornamental taxa in containerized crop production.
  3. To determine the controlled-release fertilizer-phosphorus rate required to maintain minimally sufficient pore-water phosphorus concentrations for optimal growth of containerized nursery crops

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