Journal of Biology and Nature

Foliar fertilization is one of the oldest crop-improvement practices used in agriculture; it is especially effective for the application of micronutrients. The effect of iron absorption through the leaves on greenhouse grown eggplant (Solanum melongena, L. hybrid 'Bonica') was studied using ferrous sulfate (FeSO₄.7H₂O) in different doses (0, 100, 200 or 300 mg/l). Foliar fertilization was applied at the 109, 124 and 139 days after transplanting. These treatments were replicated three times and laid out in a randomized complete block design. Data were collected on plant height, leaves number, plant fresh and dry mass, chlorophyll content, yield and on fruit quality (length, diameter and total soluble solids).
Results of presented experiment revealed a significant effect of 100 and 200 mg/l FeSO₄ as foliar nutrition on stem height and leaf number between the 121 and 135 days after transplanting.