|Authors: ||J. Barnes, B. Whipker, I. McCall, J. Frantz|
|Keywords: ||flowering maple, calcium, micronutrients, nitrogen, phosphorus, potassium, sulfur|
Abutilon × hybridum ‘Bella Yellow’ plants were grown in silica sand culture to induce and photograph symptoms of nutritional disorders.
Plants were grown with a complete modified Hoagland’s all nitrate solution: (macronutrients in mM) 15 NO3-N, 1.0 PO4-P, 6.0 K, 5.0 Ca, 2.0 Mg, and 2.0 SO4-S, plus M concentrations of micronutrients, 72 Fe, 18 Mn, 3 Cu, 3 Zn, 45 B, and 0.1 Mo.
The nutrient deficiency treatments were induced with a complete nutrient formula minus one of the nutrients.
Reagent grade chemicals and deionized water of 18-mega ohms purity were used to formulate treatment solutions.
Boron toxicity was also induced by increasing the element 10× higher than the complete nutrient formula.
The plants were automatically irrigated.
The solution drained from the bottom of the pot and was captured for reuse.
A complete replacement of nutrient solutions was done weekly.
Plants were monitored daily to document and photograph sequential series of symptoms as they developed.
Typical symptomology of nutrient disorders is presented.
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