Document Details
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Document Type |
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Article In Journal |
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Document Title |
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Grain Yield and Ear Characteristics of Corn as Affected by Irrigation Regimes and Nitrogen Fertilization محصول الحبوب وصفات الكوز للذرة الشامية تحت تأثير معاملات الري والتسميد النيتروجيني |
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Subject |
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.. |
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Document Language |
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English |
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Abstract |
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ABSTRACT. This research dealt with the grain yield, its components and
ear Characters of hybrid corn cultivar (AGA215) under the influence
of three different irrigation treatments and four nitrogen rates (urea).
The considered grain yield characters included grain yield kg/ha,
weight of 1000 grains, grain protein content, shelling percentage and
harvest index, while the ear characters were ear length, diameter, and
volume, number of rows per ear, number of grains per ear, number of
grains per row and weight of grains and cob per ear. The field experiments
were conducted at the Agricultural Research Station of King
Abdulaziz University at Hada Al-Sham area during two successive
sowing dates (Autumn 1994 and Spring 1995). A split-plot design
was used where three irrigation treatments were the main treatments
and the sub treatments were 4 N-fertilizer levels. The depletion ratio
method was followed to estimate the amount of irrigation water and
the corresponding irrigation frequencies for each irrigation treatment.
Three depletion ratios (50%, 25% and 10%) were applied, and designated
as IR1, IR2, IR3 respectively. As regards nitrogen (urea) treatments,
four rates were used (0, 100, 200 and 300 kg/ha) and denoted
as N0, N1, N2 and N3, respectively. The total applied irrigation water
was the same for the three irrigation treatments and was equal to 9015
m3/ha for autumn sowing date, and 8210 m3/ha for spring sowing
date, where only the irrigation frequency and application water for
each irrigation were the varying parameters in the treatment.
The results showed that the first sowing date (autumn) gave higher
grain yield number of grains per row, weight of grains per ear, and
weight of cob per ear, one thousand grain weight, protein content of
grain, shelling percentage and harvest index, than the second sowing
date (spring). The irrigation treatments significantly affected grain
yield variables, where irrigation treatment No. IR3 (10%) had higher
values for grain yield, and ear length. Also, the nitrogen treatments
significantly affected some grain yield variables; where treatment No.
N3 (200 kgN/ha) gave higher values of grain yield, ear length and volume,
number of grains per ear, and weight of grains per ear. However,
the N4 treatment (300 kgN/ha) gave higher values of number of
grains/row, weight of cob and protein content of grain. |
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ISSN |
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1319-1039 |
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Journal Name |
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Meteorology, Environment and Arid Land Agriculture Sciences Journal |
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Volume |
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14 |
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Issue Number |
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1 |
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Publishing Year |
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1423 AH
2003 AD |
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Article Type |
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Article |
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Added Date |
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Thursday, May 17, 2012 |
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Researchers
| سمير جميل السليماني | AL-SOLAIMANI, SAMIR GAMIL | Investigator | Doctorate | salsolaimani@hotmail.com |
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