Effects of humic acid and chitosan under different levels of nitrogen and potassium fertilizers on growth and yield potential of potato plants (Solanum tuberosum, L.)
Other Title(s)
تأثيرات حمض الهيوميك و الكيتوزان تحت مستويات مختلفة من التسميد النيتروجيني و البوتاسي على النمو و محصول الدرنات و مكوناته في البطاطس
Joint Authors
Abd al-Raziq, Ali Hasan
Harfush, Iman Abd al-Al
al-Adgham, Fathi Ibrahim
al-Sharqawi, Muhammad Abd al-Aziz
Source
Alexandria Journal of Agricultural Sciences
Issue
Vol. 62, Issue 1 (28 Feb. 2017), pp.135-148, 14 p.
Publisher
Alexandria University Faculty of Agriculture
Publication Date
2017-02-28
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Two field experiments were carried out during the fall seasons of 2014 and 2015 to investigate the main effect of humic acid (0 and 1000 ppm), chitosan (0 and 250 ppm) and NK (0, 25, 50, 75, and 100%) of the recommended rate for the commercial production of potato as well as their various interactions on some vegetative growth characters, tubers yield and its components.
The obtained results indicated that increasing the applied level of NK up to 100% constantly increased most of vegetative growth characters (foliage fresh weight, leaf area, plant height, number of main stems and leaf chlorophyll content) and tubers yield and its components (total tuber yield plant-1 and fed-1 and tubers yield of large, medium and small sized plant-1).
The highest two NK levels (75 and 100 %) didn’t, significantly, differ in their effects on most of vegetative traits.
Application of humic acid or chitosan produced, significantly, increased growth parameters as well as tubers yield and its components.
The most favorable combination treatments that produced the highest mean values of growth and tubers yield as well as yield components were 75 or 100 % NK + humic acid or chitosan, humic acid + chitosan and 75 or 100% NK+ humic acid + chitosan .
Therefore, fertilizing potato plants with 75 or 100 % of the recommended dose of NK combined with foliar spray of humic acid and chitosan could be recommended to gain the best results
American Psychological Association (APA)
Harfush, Iman Abd al-Al& Abd al-Raziq, Ali Hasan& al-Adgham, Fathi Ibrahim& al-Sharqawi, Muhammad Abd al-Aziz. 2017. Effects of humic acid and chitosan under different levels of nitrogen and potassium fertilizers on growth and yield potential of potato plants (Solanum tuberosum, L.). Alexandria Journal of Agricultural Sciences،Vol. 62, no. 1, pp.135-148.
https://search.emarefa.net/detail/BIM-874705
Modern Language Association (MLA)
Abd al-Raziq, Ali Hasan…[et al.]. Effects of humic acid and chitosan under different levels of nitrogen and potassium fertilizers on growth and yield potential of potato plants (Solanum tuberosum, L.). Alexandria Journal of Agricultural Sciences Vol. 62, no. 1 (2017), pp.135-148.
https://search.emarefa.net/detail/BIM-874705
American Medical Association (AMA)
Harfush, Iman Abd al-Al& Abd al-Raziq, Ali Hasan& al-Adgham, Fathi Ibrahim& al-Sharqawi, Muhammad Abd al-Aziz. Effects of humic acid and chitosan under different levels of nitrogen and potassium fertilizers on growth and yield potential of potato plants (Solanum tuberosum, L.). Alexandria Journal of Agricultural Sciences. 2017. Vol. 62, no. 1, pp.135-148.
https://search.emarefa.net/detail/BIM-874705
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-874705