Scientific Board Member of Agricultural Research Center , Soleimanir@hotmail.com
Abstract: (5696 Views)
Background: This investigation was carried out for the evaluation of foliar and soil application of Zn, Fe and Mn on yield and yield components of wheat (In Ilam region) for two years.
Materials and Methods: Experiments were done as factorial in completely randomized block design in research field of Mehran. Treatments were as Zn factors (1. Zns = Soil application 2. Znsf1= Soil application + foliar application with concentration of 0.3% 3. Znsf2= Soil application + foliar application with concentration of 0.6% 4. Zn0= Non-application of ZnSO4), Fe factors (foliar and non-application = Fef and Fe0 respectively) and Mn factors (foliar and non-application = Mnf and Mn0 respectively) with three replications.
Results: Analysis of variance of data and comparisons between means using Duncan , s Multiple Range Test (DMRT) indicated that the grain and straw yield, thousand seeds weight(TSW), grains per spike and concentration of Zn, Fe, Mn and Cu were affected by integrated application of soil and foliar treatments. Increasing of the grain yield in factors of Zns, Znsf1 and Znsf2 in comparison with control (Zn0Mn0Fe0) were 17.5, 21 and 22 percent, respectively in first year and were 15, 17.2 and 18.5 percent, respectively in second year. Also those were as 16.2, 19 and 20.1 percent, respectively in combined results of two years. Grains per spike were increased by integrated application of soil and foliar treatments. Zn content of grains in treatment of Znsf2 was higher than the other treatments. So, in combined results, range of Zn content of grains was from 30.8 mgkg-1 in treatment of Znsf2 to 21.3 mgkg-1 in control treatment. Fe content was reduced by Mn application (Mnf) in α=5%.
Conclusion: Interaction of Zn-Mn affected the Fe content of grains. Also, integrated soil and foliar application of ZnSO4 affected the Mn and Cu content of grains.