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Document Type |
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Article In Journal |
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Document Title |
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Effect of Different Nitrogen Fertilization Levels on the Growth of Two Cabbage Cultivars (Brassica oleracea) on Some Soil Chemical Properties. تأثير معدلات مختلفة من التسميد النيتروجيني على نمو صنفين من الكرنب ( Brassica oleracea Var. Capitata L) و على بعض الصفات الكيميائية للتربة |
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Subject |
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.. |
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Document Language |
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Arabic |
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Abstract |
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ABSTRACT. This experiment was conducted at the Agricultural Research
Station of King Abdulaziz University at Hada Al- Sham Center
in Makkah Al-Mokarramah Region, during two seasons (1997, 1998)
on two varieties of cabbage plants (Copenhagen V1 and Brunswick
V2). The experiment aimed to study the effects of four nitrogen levels
(0, 100, 200, and 300 Kg N/ha) on the growth parameters of the two
cabbage varieties: length of head, head diameter index, length and diameter
of stem, the length of interior stem and the root length after
maturity and harvest. Morever, the nitrogen content of soil, pH and
electrical conductivity (EC) were determined before planting and at
the end of each season.
Results revealed that the second season was superior to the first
season with regard to head diameter index, stem diameter and length
of internal stem. The second variety Brunswick (V2) was superior to
the first variety Copenhagen (V1) in stem diameter, length of internal
stem and root length. Addition of 200 Kg N/ha was adequate for increasing
the length and diameter of heads, head diameter index and
stem diameter. Addition of 300 Kg N/ ha resulted in a significant increase
in length of internal stem and root length.
As for soil analysis, the second variety Brunswick (V2) exceeded
the first variety Copenhagen (V1) with regard to soil electrical conductivity
(EC). Soil electrical conductivity (EC) increased with increasing
nitrogen fertilization rates. Soil (pH) decreased with increasing
nitrogen fertilization from zero to 300 Kg N/ha. Soil nitrogen
content was not affected by nitrogen fertilization dose.
It is recommended to add 200 Kg N/ ha and cultivate Brunswick
variety to obtain the best growth of cabbage plants under the dry conditions
of Hada Al-Sham Agricultural Research Center. |
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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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16 |
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Issue Number |
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1 |
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Publishing Year |
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1425 AH
2005 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 G | Investigator | Doctorate | salsolaimani@hotmail.com |
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