Fertigation strategies improve production of Hippeastrum

(American Society for Horticultural Science) A study assessed the effects of two nutrient management strategies -- based on electrical conductivity or nitrate-nitrogen -- concentration control on plant growth, ornamental quality, plant-water relations, mineral composition, and water use efficiency for Hippeastrum grown in semiclosed soilless system. Water loss and total water use in the EC strategy were significantly higher compared with the N-NO3- strategy, which minimized nitrate, phosphate, a...