Role of humic acid in improving growth characters of corn under water stress
Other Title(s)
دور حامض الهيومك في تحسين صفات النمو لنباتات الذرة الصفراء تحت الإجهاد المائي
Joint Authors
Ahmad, Shadha Abd al-Hasan
Abd al-Amir, Usamah Qasim
Source
The Iraqi Journal of Agricultural Science
Issue
Vol. 50, Issue 1 (28 Feb. 2019), pp.420-430, 11 p.
Publisher
University of Baghdad College of Agriculture
Publication Date
2019-02-28
Country of Publication
Iraq
No. of Pages
11
Main Subjects
Topics
Abstract EN
A field experiment was carried out to study the role of humic acid in improving some growth characters of corn (Zea mays L.) under water stress conditions during fall of seasons 2016, 2017, by using randomized complete block design within split plot arrangement and three replications.
The study consisted of three levels of water stress, when depleting 50, 60 and 70% of available water which was equivalent to 580, 420 and 340 mm season-1 respectively, and occupied the main plot, while the levels of humic acid 0, 40, 60 and 80 kg-1 were in sub plots.
The results showed no significant differences between the treatments of depletion 50% and 60% of the available water in number of days to tasseling, number of leaves, leaf area, leaf area index, dry weight of the plant and the crop growth rate in both seasons.
Plants under water70% depletion produced the lowest means for studied traits.
The addition of humic acid with 80 kg h-1 had the highest plant height, number of leaves, leaf area, leaf index, dry matter and crop growth rate.
The effect of interaction between two variables was significant for all the studied traits except the number of days to tasseling and number of leaves plant- 1.
It could be concluded that in the case of limitd irrigation water, It could be irrigation with 60% of the available water with 80 Kg ha-1 humic acid is practiced.
American Psychological Association (APA)
Abd al-Amir, Usamah Qasim& Ahmad, Shadha Abd al-Hasan. 2019. Role of humic acid in improving growth characters of corn under water stress. The Iraqi Journal of Agricultural Science،Vol. 50, no. 1, pp.420-430.
https://search.emarefa.net/detail/BIM-894628
Modern Language Association (MLA)
Abd al-Amir, Usamah Qasim& Ahmad, Shadha Abd al-Hasan. Role of humic acid in improving growth characters of corn under water stress. The Iraqi Journal of Agricultural Science Vol. 50, no. 1 (2019), pp.420-430.
https://search.emarefa.net/detail/BIM-894628
American Medical Association (AMA)
Abd al-Amir, Usamah Qasim& Ahmad, Shadha Abd al-Hasan. Role of humic acid in improving growth characters of corn under water stress. The Iraqi Journal of Agricultural Science. 2019. Vol. 50, no. 1, pp.420-430.
https://search.emarefa.net/detail/BIM-894628
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 428-430
Record ID
BIM-894628