The research was conducted at the Forestry Nursery of the Directorate
of Agriculture in Deir Ezzor Governorate during the growing season of
2019. The objective of the study was to study the effect of humic acid
application and different irrigation
intervals on chemical composition of
blue panic plant (Panicum antidotale). The experiment was implemented in
a Randomized Complete Block Design (RCBD) by planting Panicum seeds
in polyethylene bags filled with 2 soils to 1 sand mixture in four replicates.
Whereas three irrigation intervals (7, 14, and 21 days) and two humic acid
application treatments (control without addition and application of humic
acid) were used. Fresh plant sample from each treatment was taken at each
cut, and samples were dried at 70C
until weight was stable. Chmeical
compostion was conducted for the samples and dry matter %, crude protein
%, crude fiber %, total carbohydrate %, and ether extract % were estimated
according the the common methods. The results showed that the control
treatment (irrigation every 7 days) was significantly superior to the two
irrigation treatments every 14 days and 21 days in the percentage of soliable
carbohydrates (42.09%). While, irrigation treatment every 14 days
outperformed the other irrigation treatments and recorded the highest values
of percentage of crude protein (17.07%) and the percentage of ether extract (2.73%). The irrigation treatment every 21 days gave the highest values of
ash percentage (16.38%). No significant differences were recorded between
the irrigation treatments for the percentage of dry matter and the percentage
of crude fiber. The control treatment of humic acid outperformed the
addition of humic acid interms of the percentage of crude fiber (CF), while
the treatment of addition of humic acid outperformed the control in the
percentages of crude protein (CP), ash and ether extract (EE). No significant
differences were recorded between the application and control of humic acid
treatments in dry matter % and the percentage of soluble carbohydrates. The
effect of the interaction between irrigation intervals and the application of
humic acid was significant for all the studied characteristics. The control
treatment (irrigation every 7 days) with the addition of humic acid recorded
the highest values for the percentage of soluble carbohydrates (42.92%).
The irrigation treatment every 14 days with the addition of humic acid gave
the highest values in the percentage of crude protein (17.81%), the
percentage of ash (16.55%) and the percentage of extracted ether (2.81%).
As for the irrigation treatment every 21 days with the addition of humic
acid, had the highest values for the percentage of dry matter (96.25%)
تأثير الري الناقص في بعض المؤشرات الإنتاجية لمحصول الشوندر العلفي عند مستويات مختلفة من السماد الفوسفوري
The experiment was carried out during spring season 2016 to study the effect
of foliar spraying treatment with Tecamin Flower 2.5 ml/L in comparison with
distilled water, on growth of three hybrids of tomatoes at two different levels of
irrigation
(100 and 50 % of field capacity). Three sprays were conducted started
from flowering with two weeks’ interval. The results showed that ‘Finenss’ hybrid
had significant differences in plant height, branches per plant and leaves number per
plant. ‘Hadeer’ hybrid had superiority in dry matter ratio and content of chlorophyll
in leaves. Reducing the level of irrigation resulted in a significant decrease in
plant height, total branches number, versus an increase in the leaves number per
plant, total leaves area and the percentage of dry matter. The results showed that
the treatment with Tecamin flower led to a significant increase in all indicators
studied. The interaction treatments shoed that Hadeer hybrid irrigated in level 50
% and spraying of nutrient solution (Tecamin flower) had a significant increase in
dry matter ratio and chlorophyll content in leaves. While the hybrid Finenss which
irrigated in level 100 % with nutrient solution (Tecamin flower) had a significant
increase in leaves number per plant and total leaves area.
نفذ البحث في مزرعة أبي جرش بكلية الزراعة - جامعة دمشق موسم 2016 بهدف تحديد الاحتياج المائي لثلاث طرز وراثية محلية مختلفة من البندورة
The research aimed at studying the impact of the most
important economic and social factors affecting the adoption of new
irrigation techniques، namely water collective management in ALGhab
basin in Syria .The research accomplished by taking a
si
mple random sample of 264 farmers .Because of the nature of
dependent variable which is dichotomous ،(1= adoption of water
collective management،0=otherwise)،The binary logistic regression
was used.
This study considers the efficiency of irrigation water usage in the
economic and productive aspects of peanuts crop in Syrian lands, in
particular: mid, coastal and eastern lands, in terms of arithmetic
means during the period of 2010-2012.
The purpose of this research is to apply a mathematical program to
calculate water and chemical balance in unsaturated soils, under the
influence of different methods of irrigation, in order to monitor the
amount of vertical drainage of water insi
de the soil and choose a
irrigation method that can reduce the phenomenon of groundwater
pollution.
Three irrigation methods were tested with different fertilization
method. The study was conducted in the western part of Homs
Governorate (AlQusair orchards).
The experiment carried out to improve the efficiency of drip
irrigation system , based on soil moisture. The indirect measure of
humidity Was used in the experiment, connected with the pointing
device (separator continued), and a control device pr
ogrammed on a
low humidity degree, which is degree the field capacity of the soil and
which value is 25%, and on a high moisture degree which is saturation degree
at 75%..
The study aimed to estimate water requirements for Anise, the crop
coefficient, and the effect of three water stress treatments out of full irrigation
amount respectively) on its yield
This research on pepper crop conducted to impact water stress using
three transactions water are: full irrigation (100% from water
requirement), 0.75% of full irrigation, and 60% of full irrigation,
has been designed experiment in a way random sectors full, use a
variety of municipal plant peppers, and used drip irrigation method.
