![](/images/graphics-bg.png)
Response of grain sorghum (Sorghum Bicolor, L. Monech) to irrigation, nitrogen and plant density under new valley conditions, Egypt
Other Title(s)
استجابة الذرة الرفيعة لماء الري، النيتروجين و الكثافة النباتية تحت ظروف الوادي الجديد، مصر
Author
Source
Egyptian Journal of Desert Research
Issue
Vol. 65, Issue 1 (30 Jun. 2015), pp.11-30, 20 p.
Publisher
Publication Date
2015-06-30
Country of Publication
Egypt
No. of Pages
20
Main Subjects
Abstract EN
The proper agronomical practices should be carefully chosen for optimizing grain sorghum productivity, particularly under limited-resources environments.
Therefore, two field experiments were carried out in the Desert Research Center, Agriculture Experimental Station at El-Kharga Oasis, New Valley Governorate, during 2010 and 2011 growing seasons, to evaluate the effect of irrigation rate (5, 6 and 7 mm/fed/day); nitrogen fertilization rate (60, 80 and 100 kg N/fed) and plant density (17500, 23333 and 35000 plant/fed) on grain sorghum.
Results showed that irrigation by 7 mm/fed/day was the potent treatment for increasing plant height, head length, head weight, weight of grains per head, seed index, grain yield, straw yield and biological yield compared to irrigation by 6 and 5 mm/fed/day.
On the contrary, water use efficiency (WUE) and protein percentage were significantly decreased with increasing irrigation levels in both seasons.
Adding 100 kg N/fed gave the maximum values of yield, yield components, water use efficiency and protein percentage compared to 80 and 60 kg N/fed in both seasons.
Increasing plant density from 17500 to 35000 plant/fed caused significant increases in yield, yield attributes, water use efficiency and protein percentage, except for head weight, weight of grains per head and seed index in both seasons.
Plots irrigated by 7 mm/fed and fertilized with 100 kg N/fed achieved the maximum values of grain, straw and biological yield/fed, when sorghum plants grown at high density (35000 plant/fed).
Keywords: grain sorghum, irrigation levels, N rates, plant density, WUE New Valley region (located at the Western Desert of Egypt) is considered one of the promising locations by its oases for agricultural expansion; it represents 45% of Egypt area.
Its weather is hot-dry and cultivation depends mainly on ground water, so sustainable agriculture
American Psychological Association (APA)
Salim, Imad Muhammad Muhammad. 2015. Response of grain sorghum (Sorghum Bicolor, L. Monech) to irrigation, nitrogen and plant density under new valley conditions, Egypt. Egyptian Journal of Desert Research،Vol. 65, no. 1, pp.11-30.
https://search.emarefa.net/detail/BIM-812594
Modern Language Association (MLA)
Salim, Imad Muhammad Muhammad. Response of grain sorghum (Sorghum Bicolor, L. Monech) to irrigation, nitrogen and plant density under new valley conditions, Egypt. Egyptian Journal of Desert Research Vol. 65, no. 1 (2015), pp.11-30.
https://search.emarefa.net/detail/BIM-812594
American Medical Association (AMA)
Salim, Imad Muhammad Muhammad. Response of grain sorghum (Sorghum Bicolor, L. Monech) to irrigation, nitrogen and plant density under new valley conditions, Egypt. Egyptian Journal of Desert Research. 2015. Vol. 65, no. 1, pp.11-30.
https://search.emarefa.net/detail/BIM-812594
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 27-29
Record ID
BIM-812594