Lipid-based Fe- and Zn- nanoformulation is more effective in alleviating Fe- and Zn- deficiency in maize |
| |
| Authors: | Zachary P Stewart Ellen T Paparozzi M Djanaguiraman Charles A Shapiro |
| |
| Institution: | 1. Feed the Future Innovation Lab for Collaborative Research on Sustainable Intensification, Kansas State University, Manhattan, KS, USA;2. Department of Agronomy, Kansas State University, Manhattan, KS, USA;3. Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, USA;4. Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore, TN, India;5. Haskell Agriculture Laboratory, Concord, NE, USA |
| |
| Abstract: | Improving uptake, translocation, and utilization of foliar applied Fe and Zn is essential for increasing biomass and grain yield under deficient conditions. We compared the effect of foliar applied lipid-based Pheroid Fe- or Zn- nanoformulation, chelate and sulfate forms on biomass, nutrient uptake and mobilization in maize grown under Fe and Zn deficiency scenarios in hydroponic systems and field trials. Foliar spray of Fe-Pheroid nanoformulation resulted in complete re-greening. Partial and no re-greening of mature and young leaves, respectively, were observed under FeSO4 and Fe-HEDTA treatments. Foliar spray of Zn-Pheroid nanoformulation increased the Zn concentration of young leaves. In field trials, foliar spray of Fe- or Zn- chelate did not improve leaf Fe and Zn concentration or grain yield. Fe- and Zn-Pheroid nanoformulation improved the mobility of Fe and Zn within the plant. Field trials indicated that non-lipid-based formulation was not effective in amelioration of Fe- and Zn deficiency. |
| |
| Keywords: | Fe Foliar Nanoformulation Pheroid Translocation Zn |
|
|
