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Register a new userStudying the possibility of using marine plants residues as an agricultural media in nurseries
دراسة إمكانية استخدام بقايا النباتات البحرية كأوساط زراعية في المشاتل
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Tishreen University أطروحة دكتوراه
Publication date
2013
fields
Agricultural Engineering
and research's language is
العربية
Created by
Shamra Editor
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أجري هذا البحث خلال الفترة ( 2010-2013) بهدف دراسة إمكانية الاستفادة من بقايا الطحالب البحرية الخام المتراكمة على الشاطئ السوري في الحصول على أوساط زراعية بديلة عن الأوساط التقليدية للاستخدام في المشاتل ولاسيما الحراجية وبالتالي الإقلال من استيراد البيتموس وتوفير العملة الصعبة وفي الوقت ذاته تخليص البيئة من المخلفات النباتية العضوة وتحسين مظهر الشواطئ .
This research was carried during the period of (2010-2013) to study the possibility of benefiting from the raw seaweeds residuse accumulated on the Syrian beach in obtaining an alternative substrates instead of the traditional one for using in nurseries, especially forestry, and thus reducing the peat moss importation and saving the currency, at the same time salvation the environment from the organic plant waste and and improve the seashores appearance .
References used
الرفاعي , عبد الله . البذور والمشاتل الحراجية الجزء النظري منشورات جامعة حلب كلية الزراعة
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This research was carried out during the period of (2010-2013) to study the possibility
of benefiting from the raw seaweeds residues accumulated on the Syrian beach in obtaining
an alternative substrates instead of the traditional one for using in
nurseries especially
forestry and thus reducing the peat moss importation and saving the currency, at the same
time salvation the environment from the organic plant waste and improve the seashores
appearance. This research included two main experiments which were:
First: Substrates experiment
Second: Soaking seeds in seaweeds extract experiment
Finally it should be noted that this described work has added some important positive
results in choosing a new substrates which will help in the future to solve the traditional and
imported media problems, and it also provided an effective and economical solution for
marine plant waste management and disposal from the environmental pollution in the coastal
regions.
Thin films of ZnO were successfully prepared on glass substrates with different thicknesses by sol-gel method by using zinc acetate dehydrate as precursor. The surface of thin films morphology from were studied by AFM micrographs, the structural prop
erties of the obtained ZnO thin film are studied using X-ray diffraction spectra and their elemental analysis by X-ray energy dispersion spectroscopy (EDX). Moreover, optical properties and emission of ZnO nano thin film were evaluate during ultraviolet-visible-infrared and photoluminescence spectra. The AFM investigations have revealed that the morphology of the films is smooth and homogeneous specially for the high thickness and the grains produced on the surface take the form of nano rods with an average diameter of 240nm. Structural analysis by X-ray diffraction showed that the deposited films have a preferred orientation along the direction (112) and are relatively uniform with average crystal size 19nm, while the EDX spectrum showed that the elemental composition of these films is zinc oxide. The spectrophotometer Ultraviolet -Visible confirms that it is possible to get good transparent ZnO films with a transmission of 77 to 92% in the infrared. The values of optical gaps Eg vary between 3.273 - 3.256 eV. The peak of photoluminescence exhibited a visible emission peak at 616nm that refers to possibility of using thin films as an effective medium of random laser.
This paper presents the characterization of sea wave behavior in some areas of Lattakia
shore, through monitoring for more than one site different from each other by terrain,
water depth and bottom type (sand, rocks).
It also presents results of m
easurements of wave height values and their period at
breakwater area of Lattakia port, and also shows results of power calculations trans- mitted
with waves and speed of those waves, and brings a comparison of energy values calculated
using different experimental equations is being used globally, and shows that wave's speed
and period are independent from each other.
Also shows that it is possible to apply wave power techniques in Syria ,relying on principle
of high strength and low height , best way to achieve this is through hydraulic circuits ,and
installation of a central system and several subsystems connected to it ,this provides a
continuous flow of power.
This research aimed to study the possibility of using a digital
camera in estimating soil color and compare it with Munsell soil
color chart, and then study the correlation between soil color as
important classification properties and soil content of organic
matter, soil content of total carbonate and soil Texture.
In this paper, we have used electrospinning technique to obtain nonwoven networks of nanofibers from polyacrylic nitrile, where we dissolved polyacryl nitrile in its dimethylformamide solvent to form the polymeric solution.
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