Main Page
Faculty
About the Faculty
Dean Message
Administration
Administration Hierarchy
Faculty Associations>
Saudi Society for Environmental Scienes
Saudi Society of Meteorology
Faculty Labs >
Central Lab
Faculty Film
Departments
Meteorology
Environmental Sciences
Arid Land Agriculture
Hydrology and Water Resources Management
Graduate Studies
Regulations and Guidelines
Graduate Programs
Graduate Studies
Graduate Program >
Department of Meteorology >
Master's in Meterology
Master in Meterology
Department of Environment >
Master of Environment
Doctor of Occupational Hygiene
Doctor of Food Safety and Hygiene
Doctor of Water Pollution
Doctor of Air Pollution and Meteorology
Department of Agriculture >
Master of Animal Production
Master groves
Master and crop protection
Master of Field Crops and Soil
Master of Horticulture
Master of Natural Resources
Master of other decisions
Ph.D. Animal Production
Ph.D. orchards
Doctor of natural resources
PhD Field Crops and Soil
Ph.D. and crop protection
Ph.D. other decisions
Department of Hydrology >
Master of Hydrology
PhD
International Cooperation
Units
Unit of Assessment and Academic Accreditation
The Applications of Systems Quality Unit
Students Activities
Students Activities
Researchs
Files
Courses
Employees
Subjects
Awards
Site Contents
Favorite Links
PhotoAlbum
Latest News
Contact With Us
Contact Us
Faculty Map
Our Contacts
عربي
English
About
Admission
Academic
Research and Innovations
University Life
E-Services
Search
Faculty of Environmental Sciences
Document Details
Document Type
:
Article In Journal
Document Title
:
Jojoba (Simmondsia chinesis (Link) Schneider): A Potential Shrub in the Arabian Desert: IV. Effect of NPK Fertilization on Vegetable Growth and N Content of Leaves
الهوهوبا : الشجيرة الواعدة في الصحراء العربية ، أثر التسميد بالنيتروجين والفوسفور والبوتاسيوم على النمو الخضري ومحتوى الأوراق من النيتروجين .
Document Language
:
English
Abstract
:
A two-years field trial was initiated on 20/9/93 to assess the effect of eight (23) fertilizer treatments comprising two levels (zero and 50 kg ha–1) of each of the three major fertilizer elements (N, P and K) on vegetative growth of a heterogenous jojoba population established on 28/2/93. Data taken on nine morphological traits for eight consecutive seasons (Fall 1993 up to Summer 1995) revealed high significant differences among seasons for each of the studied traits. In addition, main effects of N, P and K on morphological traits were generally absent and when present (1st and 8th seasons) they were all negative, with the exception of branch length (winter 1993) that was positively increased by N application. Effect of N1P0 and N0P1 on number of branches (3 out of 8 seasons), N1P1 on leaf area and leaf weight (Fall 1993) and of P0K0 and P1K1 on plant height and number of branches (Summer 1995), on the other hand, were all positive and significant. Among second order interactions, effects of N1P1K1 and N1P1K0 on leaf area and Specific Leave Area (SLA) (1st and 3rd seasons) were the highest, but were statistically similar to those of N0P0K0. Application of N had also significantly increased N content (fall, winter and spring) and P content (summer) of Jojoba leaves in the first year.
ISSN
:
1319-1039
Journal Name
:
Meteorology, Environment and Arid Land Agriculture Sciences Journal
Volume
:
9
Issue Number
:
1
Publishing Year
:
1418 AH
1998 AD
Article Type
:
Article
Added Date
:
Sunday, August 5, 2012
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
عطا الله أحمد أبو حسن
Abohssan, Atalla Ahmed
Researcher
Doctorate
Files
File Name
Type
Description
34059.pdf
pdf
Back To Researches Page