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We carried out a comparative study on the effect of mineral fertilizers and biofertilizers on the nutrient concentration of Laelia anceps Lindl. subsp. anceps (Orchidaceae) seedlings. The first nutrient solution (MinFert) was prepared with commercial mineral fertilizers (Peters Professional® 30N-10P-10K); the second one (Biofert) from Nutro® commercial biofertilizer; and the third with a combination of mineral sources and biofertilizers (Min-Fert + Biofert). Mineral fertilization promoted significant differences in N concentration in leaves and roots. Also, it increased K and the concentration of some micronutrients in the roots. The phosphorous concentration increased in pseudobulbs and roots with the Min-Fert and Min-Fert + Biofert. Biofertilization increased the N concentration in pseudobulbs, and Min-Fert + Biofert increased the Ca and Mg concentration in the roots, as well as the concentration of Fe and Cu in pseudobulbs and Cu in the leaves. Interestingly, Min-Fert significantly increased the nutrient concentration in the roots in comparison to the other tissues. We demonstrated that the use of biofertilizers in L. anceps subsp. anceps (alone or as a supplement to mineral fertilization), represents an alternative to reduce production costs and mitigate the negative impacts of mineral fertilization on the environment.

horticulture journal

Nutrient Concentration in Vegetative Organs of the Orchid &lt;i&gt;Laelia anceps&lt;/i&gt; subsp. &lt;i&gt;anceps&lt;/i&gt; Based on Mineral Fertilization and Biofertilization