تأثير أضافة اليوريا على عملية النترجة في بعض ترب جنوب العراق
Other Title(s)
The effect urea on nitrification process in some soils of south of Iraq
Author
Source
Issue
Vol. 4, Issue 2 (31 Dec. 2014), pp.106-115, 10 p.
Publisher
University of al-Qadisiyah College of Agriculture
Publication Date
2014-12-31
Country of Publication
Iraq
No. of Pages
10
Main Subjects
Topics
Abstract EN
The objective of this experiment is to study the effect of different concentrations of urea-N on the amount of the available ammonium remained and that of nitrate formed so that to calculate the nitrification rates directly in the soil.
Five concentrations of urea-N (0,75,150,225,300) ppm urea-N are used in a CRD factorial experiment with three replicates.
Each treated soil is moistened to 90% of it’s field capacity and incubated at room temperature for forty days started during which the amount of nitrate formed was measured at a 10-day intervals water is added to maintain the moisture by weighing the plates every two days.
The following results are recorded:- 1-The results show that was ( 39.8%) of the added nitrogen for the soil taken from Karna, followed by Souq Al-Shiyokh (29.6%), and less than that is registered for the soils taken from Hay and Rafiaee (24.2% and 23.7%) respectively , which is then decreased in the following periods of incubation.
2-Generally the rates of nitrification in soil are proportional to the calcium carbonate and organic matter contents of the soil.
American Psychological Association (APA)
حران، محمد سعيد. 2014. تأثير أضافة اليوريا على عملية النترجة في بعض ترب جنوب العراق. مجلة القادسية للعلوم الزراعية،مج. 4، ع. 2، ص ص. 106-115.
https://search.emarefa.net/detail/BIM-744426
Modern Language Association (MLA)
حران، محمد سعيد. تأثير أضافة اليوريا على عملية النترجة في بعض ترب جنوب العراق. مجلة القادسية للعلوم الزراعية مج. 4، ع. 2 (2014)، ص ص. 106-115.
https://search.emarefa.net/detail/BIM-744426
American Medical Association (AMA)
حران، محمد سعيد. تأثير أضافة اليوريا على عملية النترجة في بعض ترب جنوب العراق. مجلة القادسية للعلوم الزراعية. 2014. مج. 4، ع. 2، ص ص. 106-115.
https://search.emarefa.net/detail/BIM-744426
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 114
Record ID
BIM-744426