The cultivation of goldenrod in Brazil is recent and the knowledge about its nutritional requirements is important to obtain a better crop management. The objective of this study was to evaluate the accumulation of micronutrients in plants of goldenrod under different management systems. The experiment was carried out in a randomized block design, arranged in a factorial scheme (3x7) with three replications. Each experimental unit consisted of one pot containing three plants. The treatments were represented by the conduction system of the plant (one, two and three stems per plant) and seven harvest times [0, 15, 30, 45, 60, 75 and 90 days after planting (DAP)]. During the first eight weeks of cultivation the plants were maintained under long day (LD) with 16 hours of light (4 additional hours by means of artificial light to promote vegetative growth). The plants were fertigated with 30 mL of nutrient solution in the first 30 days after planting and 50 mL 60 days later. The drip irrigation was alternated with irrigation according to the need of the plants. The conduction system did not provide difference in dry mass of leaves. There were no symptoms of micronutrient deficiency and toxicity in the leaves of goldenrod during the period analyzed. The accumulation of micronutrients in the leaves followed the increase of dry mass throughout plant growth, following the order: Mn>Fe>B>Zn>Cu.
Solidago canadensis; iron; zinc; copper; manganese; absorption
