Document Details
|
Document Type |
: |
Article In Journal |
|
Document Title |
: |
Effect of Different Rates of Nitrogen and Irrigation on Dry Matter and Nitrogen Content of Corn at Different Growth Stages During Two Sowing Dates تأثير معاملات مختلفة من النيتروجين والري على تجميع المادة الجافة والمحتوى النيتروجيني لنبت الذرة الشامية خلال مراحل النمو المختلفة لموعدين زراعيين |
|
Subject |
: |
.. |
|
Document Language |
: |
English |
|
Abstract |
: |
ABSTRACT. One field experiment was conducted at Hada Al-Sham Experimental
Station, King Abdulaziz University, to study the effect of
three different rates of irrigation, based on depletion ratios of 50%,
25%, 10% (IR1, IR2, IR3) and four different rates of nitrogen fertilization
(urea), zero, 100, 200, 300 kg/ha (N0, N1, N2, N3) of hybrid corn
plant (AGA Seed 215 Cultivar). Total dry matter accumulation and its
parts (leaves, stems, ears, and tassels) as well as the nitrogen content in
different plant parts at different growth stages during two successive
sowing dates (autumn 1994 and spring 1995) were determined. The irrigation
scheduling processes were designed under constraint of equal
total seasonal applied water for different irrigation treatments, which
were 90.15 cm/sowing date one (9015 m3/ha/sowing date one) and 82.1
cm/sowing date two (8210 m3/ha/sowing date two) for two sowing
dates, respectively. The first sowing date outcome had a significantly
higher leaf area index and dry weight (ear, tassel and total), plant nitrogen
percentage (stem, ear and total). However, the nitrogen percentage
of tassel was significantly higher in second sowing date . All plant variables
(dry matters) were higher under the fourth plant stage (maturation)
except tassel dry weights. The nitrogen treatment affected significantly
some growth variables, where the N3 treatment gave higher
values of dry weight (3202.9 kg/ha for ear, 232.3 kg/ha for tassel and
6438.2 kg/ha for total), and nitrogen percentage (1.98 gm/kg for leaf,
and stem), while N2 treatment gave higher values of nitrogen content in
plant and its parts, (2.9 gm/kg for total, 2.84 gm/kg for leaf, 1.97 gm/kg
for stem, 1.67 gm/kg and 1.56 gm/kg for tassel). There was no significant
effect for the irrigation regimes or interaction treatments (nitrogen
treatment and irrigation regimes) on all the studied plant variables. |
|
ISSN |
: |
1319-1039 |
|
Journal Name |
: |
Meteorology, Environment and Arid Land Agriculture Sciences Journal |
|
Volume |
: |
14 |
|
Issue Number |
: |
1 |
|
Publishing Year |
: |
1423 AH
2003 AD |
|
Article Type |
: |
Article |
|
Added Date |
: |
Thursday, May 17, 2012 |
|
Researchers
| سمير جميل السليماني | AL-SOLAIMANI, SAMIR G | Researcher | Doctorate | salsolaimani@hotmail.com |
|
Back To Researches Page
|