1. How to submit my research paper? What’s the process of publication of my paper?
The journal receives submitted manuscripts via email only. Please submit your research paper in .doc or .pdf format to the submission email: joaat@ejournal.net.
2. Can I submit an abstract?
The journal publishes full research papers. So only full paper submission should be considered for possible publication...[Read More]

The Effect of Zinc and Humic Acid Applications on Yield and Yield Components of Sunflower in Drought Stress

Hamid Hatami
Agriculure Department, Bojnourd Branch, Islamic Azad University, Bojnourd, Iran
Abstract—Tests were done to evaluate the effect of zinc and humic acid applications on yield and yield components of sunflower in drought stress condition. An experiment was conducted as a split plot factorial based on RCBD with three replications in 2014 at the Islamic Azad University Bojnourd. Factors under consideration were; Level of Irrigation in three levels (60, 100 and 140mm evaporation from evaporation pan class A) as the main factor; zinc spray application (zero, 2.5 per thousand) and humic acid application (zero, 4 lit/h) as sub-factors. Results showed that sunflower yield decreased under increasing drought stress, but zinc application improved yield by showing increased evaluations for diameter and number of seeds per head. Humic acid application also significantly increased grain yield by increasing grain weight, diameter and number of seeds per head under water stress conditions. It can be stated that the synergistic effect of zinc and humic acid applications improved sunflower yield in drought stress, by increased evaluations of diameter and number of seeds per head and weight of grain. 
 
Index Terms—sunflower, zinc, humic acid, drought stress

Cite: Hamid Hatami, "The Effect of Zinc and Humic Acid Applications on Yield and Yield Components of Sunflower in Drought Stress," Journal of Advanced Agricultural Technologies, Vol. 4, No. 1, pp. 36-39, March 2017. Doi: 10.18178/joaat.4.1.36-39
Copyright © 2012-2015 Journal of Advanced Agricultural Technologies, All Rights Reserved