Importance of Micronutrients and its Application Methods for Improving Maize (Zea mays L.) Yield Grown in Clayey Soil

摘要

Two field experiments were carried out to investigate the effect of adding Zn, Mn and Fe in different methods on maize yield and nutrients concentration. The experimental factors were A: Micronutrients addition. There were 5 treatments 1-Non fertilized. 2- Zn. 3- Mn. 4- Fe. 5- Zn + Mn + Fe. B: Application method. There were 3 methods 1-Foliar spray. 2- Grain soaking. 3- Grain coating. Results revealed that micronutrient fertilization using Zn + Mn + Fe treatment was the most effective treatment in all studied traits. Foliar spraying gave the highest values of ears/plant, grains/ear, 100-grain weight and grain yield in both seasons.p