Document Type : Original Article
Authors
1
Soils Department, Faculty of Agriculture, Mansoura University, EL-Mansoura, 35516, Egypt
2
Soil & Water and Environment Research Institute, Agriculture Research Center, Giza, 12619, Egypt
Abstract
With the growing demand for the potato crop to fill the food gap in the world, in conjunction with the challenges facing potato cultivation due to climate change, the work in improving its productivity and tuber quality has become a critical aim. So, a field trial was carried out aiming to investigate the influence of spraying nano silica and/or nano alumina combined with potassium acetate and/or Mn-EDETA on potato growth, yield and tuber quality during the 2024/2025 growing season under the split plot experimental design. The main plots included the Nano silica and alumina treatments [Control (tap water), nano alumina (at rate of 10 ppm), nano silica (at rate of 10 ppm) Nano alumina (at rate of 5.0 ppm) + nano silica (at rate of 5.0 ppm)], while the sub main plots included the potassium acetate and Mn-EDETA treatments [Control (tap water, K (at rate of 2.5 cm3L-1), Mn (at rate of 1.0 g L-1), K (at rate of 2.5 cm3L-1) + Mn (at rate of 1.0 gL-1)]. Concerning the individual effect of nano-silica and alumina, the highest values of all studied parameters such as plant height (cm), fresh and dry weights (gplant-1) after 70 days from planting, as well as tuber traits, including average tuber weight (g), No. of tuber plant-1 and yield (ton fed-1), vitamin C (VC, mg 100g⁻¹), total carbohydrates (%), dry matter (%) and total sugars (%) in tubers were realized with the combined application of both nanoparticles, followed by the nano-silica alone, then nano-alumina alone and lately the control treatment. Regarding the individual effect of potassium and manganese, the highest values of aforementioned traits were realized with the combined treatment of potassium and manganese, followed by manganese alone and then potassium alone, and lastly the control treatment. Notably, The interaction between nano silica and/or nano alumina combined with potassium and/or manganese treatments further emphasized the synergistic role of the studied treatments, as the combined treatment of nano silica and nano alumina + potassium and manganese resulted in the highest values of all studied growth, yield and quality traits. Therefore, this study recommends the incorporation of this approach into potato fertilization programs. Also, it can be said that this study represents a preliminary trial and forms the basis for longer trials in the future.
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