تأثير ملوحة مياه الري و التسميد البوتاسي في التثبيت البيولوجي للنتروجين الجوي لنبات البزاليا Pisum sativum L. (Var. Senador Cambados)
Other Title(s)
Effect of saline water and potassium fertilizer on nitrogen fixation in Pisum sativum L.
Author
Source
Issue
Vol. 5, Issue 1 (31 Mar. 2008), pp.19-26, 8 p.
Publisher
University of Baghdad College of Science for Women
Publication Date
2008-03-31
Country of Publication
Iraq
No. of Pages
8
Main Subjects
Earth Sciences, Water and Environment
Agriculture
Abstract EN
Field experiment was conducted to test the effect of saline water 2 and7 dSm-1 potassium fertilizer rate 150,300 and 450 kg/donum on nitrogen fixation in Pisum sativum L.
nodules.
The experiment included anatomy study .Results water salinity ( 2,7 dSm-1) as a main plot and fertilizer rates as a sub plot.
Results indicated that irrigation with saline water 7 dSm-1 caused a significant decrease in N contents especially in the lower parts of the plants.
The percentage of the N decreased in lower leaves to (0.01%) under 7dSm-i and 300 kg/donum fertilizer; however the percentage increased in the upper leaves to (2.80%) under with 2dSm-iof irrigation water and 300 kg/ donum fertilizer rate.
Fresh weight decreased to 6.26g under 7 dSm-i and 450 kg/donum fertilizer rate, but irrigated with 2 dSm-i and 300 kg/donum fertilizer rate increased it to 18.87g.
The nodules number , fresh and dry weight decreased to( 114 nodule/plant ,2.18 and 1.70 g/plant ) with 7 dSm-i salinity water and 150 kg/donum fertilizer, respectively , the results showed that irrigation with 2 dSm-i saline water and 300kg/ donum fertilizer increased them to ( 167.6 nodule/plant,5.43 and 2.20 g/plant Respectively.
Increasing levels of irrigation water from 2 to 7 dSm-i salinity, caused increased vessels thickness in both leaves and root; this is because the salt accumulated on cell wall .whereas cortex cell wall was thicker in root for same reason .
Thus of nitrogen fixing symbiosis in pea was more determined with anatomy change in root tissues which caused decreasing in nodules number fresh and dry weight.
Accordingly, conclusion could be made that potassium may reduce the inhibitory effect for nitrogen fixation in saline water irrigation condition.
American Psychological Association (APA)
الشهواني، إياد وجيه رؤوف. 2008. تأثير ملوحة مياه الري و التسميد البوتاسي في التثبيت البيولوجي للنتروجين الجوي لنبات البزاليا Pisum sativum L. (Var. Senador Cambados). مجلة أم سلمة للعلوم،مج. 5، ع. 1، ص ص. 19-26.
https://search.emarefa.net/detail/BIM-368070
Modern Language Association (MLA)
الشهواني، إياد وجيه رؤوف. تأثير ملوحة مياه الري و التسميد البوتاسي في التثبيت البيولوجي للنتروجين الجوي لنبات البزاليا Pisum sativum L. (Var. Senador Cambados). مجلة أم سلمة للعلوم مج. 5، ع. 1 (2008)، ص ص. 19-26.
https://search.emarefa.net/detail/BIM-368070
American Medical Association (AMA)
الشهواني، إياد وجيه رؤوف. تأثير ملوحة مياه الري و التسميد البوتاسي في التثبيت البيولوجي للنتروجين الجوي لنبات البزاليا Pisum sativum L. (Var. Senador Cambados). مجلة أم سلمة للعلوم. 2008. مج. 5، ع. 1، ص ص. 19-26.
https://search.emarefa.net/detail/BIM-368070
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 24-25
Record ID
BIM-368070