The research was carried out at Jeb Ramlah Research Station – AlGhab Research Center -
General Authority of Scientific Agricultural Research at 2017 growing season. The
objective was to investigate the effect of three organic and bio fertilizers (B
acillus, Humic
acid and Amino acids) and three fertilization methods (Soaking seeds, Vegetative spraying
and Plant irrigation) in some morphological and production traits of cotton cultivar 124
(Gossypium herutum L.) The experiment was conducted according to RCBD with three
replications. The first factor (fertilizer type) occupied the main plots, while the second
factor (fertilization method) occupied the split plots. Statistical analysis was carried out
using the Genestat.12 software and the least significant difference L.S.D. at 5% level was
calculated. Studied traits included (at the beginning of Blooming stage): Plant Height,
Plant wet weight, Plant dry weight, Leaf area and plant production of cotton. The results
showed that the average of treatment of amino acids was superiority significant on the
others in terms of plant height (70.70cm), Plant wet and dry weight (201.50, and 83.41g),
respectively, Leaf area (4240.15cm2/plant) and plant production of cotton (75.13g). For
fertilization method, Vegetative spraying average was superiority significant on the others
in terms of all studied traits.
The research was carried out during 2014 and 2015 agricutural
season ,To study the effect of spraying cytokinin regulator on
vigitative and fruiting charachterstics cotton plant.
Sahl Al-Ghab zone is characterized by the availability of natural and human
appropriate conditions for the cultivation of cotton, and it's one of the most desired
agricultural crops for export, in addition to the big need for local textile mills wi
th both of
its public and private sectors, and it's also one of the strategic and social crops. However,
between 2005-2013, cotton cultivation fell back in this region to be replaced mainly by
wheat in addition to other crops, and the main reasons for this decline is that there is no
proportionality between the price of cotton and production costs, as the price of the
kilogram of cotton rose from 31 S.P in 2005 to 100 S.P in 2013, while the price of the liter
of diesel – the main factor in the cultivation of cotton – rose from 25 S.P in 2005 to 60 S.P
in 2013.
Through this research, We knew the reasons for the decrement of cotton cultivation
in Sahl Al-Ghab zone and choosing the wheat and nothing else to replace it, especially that
wheat cultivation didn't achieve better economic returns of cotton.
On the contrary, it had negative results in terms of non-application of the agricultural
cycle and the spread of diseases such as wheat rust disease that spreaded in Sahl Al-Ghab
zone in the last years and which reflected negatively on production.
The research was carried out during the growing seasons of 2011 and 2012 to study
the effect of land leveling by laser, three tillage depths(01, 25 and 35cm) and three
irrigation systems with 7, 8, and 9 day intervals, along with the interactive ef
fect between
them on the yield of cotton (C.V Aleppo-90), irrigation management and net grossing. The
study showed the following results:
1- Land leveling by laser significantly increased the seed cotton yield, saved
irrigation water, and made net grossing higher as compared to no-leveling by laser through
the two seasons.
2- The two depths of tillage (25 and 35cm) significantly increased the seed
cotton yield, increased the irrigation water amount, and made net grossing higher as
compared to the depth of tillage (10cm)..
3- Increasing the irrigation water amount significantly increased the seed
cotton yield which reached 1441KG/H, and achieved higher grossing which reached 31360
S.P/H as compared to the lower irrigation water amount.
4- The interactive effect between the factors of this experiment gave a
significant positive difference. The best results were at (deep tillage 35cm × intervals 7
days × leveling by laser) through two seasons.
Syrian agricultural sector is one of the most sectors which contribute to the
national economy, because it provides employment for about 50% of the Syrian
labor force. In addition to secure food and clothing to the citizens and the raw
materials f
or the national downstream industries and reduces the trade deficit.
The cotton crop is the most important strategic crop and where 18% of the
workforce are employed there, starting from the process of agriculture until the
delivery of the product to the consumers. In addition to, it is an export crop
which includes raw cotton ginned, spun and woven garments worth tens
billions of Syrian pounds. The cultivation of cotton is one of the most important
irrigated crop in Syria and the relative importance in the Syrian agriculture,
For these reasons, the study includes many agricultural aspects - productivity
also it depends on official statistical data analyzed and discussed according to
the approved scientific basis for such these kinds of studies. The econometrics
showed that production and area of cotton was decreased when the cost was
increased in spite of there were increases in researches which are done in the
fields of cotton.
The research was carried out during 2009 – 2010 in Al – Hasaka – Amoda – to study the effect of cattle manure at the rate of 30 ton/h1, and four organic green fertilizers (Lentil, Vetch, Faba bean and Barely) on plant area and earliness properties of
cotton crop compared with chemical fertilizer 400 kg/h1 urea, 83 kg/h1 P2O5 and 25 kg/h1 K2O.The study showed that the cattle manure significantly increased (plant area, lower first fruiting branch, earliness of flowering and boll maturity) when compared with all studied fertilizers, the increase reached (190. 92 Cm2, 0.30 pod, 1.50 day and 0.90 day) respectively. When compared with chemical fertilizer, the legume green fertilizers (Lentil, Vetch and Faba bean) significantly increased the plant area when compared with the control. The legume green fertilizer (Lentil) significantly increased the earliness of flowering (2.73) day and boll maturity (2.21) day when compared with the green fertilizer (Barely). The chemical fertilizer did not significantly affect the earliness of flowering and boll maturity when compared with the legume green fertilizer (Lentil) during the two seasons.
A survey was conducted to determine the frequency and mean densities of
plant-parasitic nematodes associated with cotton crop (Gossypium hirsutum L.)
after the harvesting season 2008 in Syria. Results showed that twelve genera of
plant-parasitic n
ematodes were found associated with cotton crop roots. The
distribution of nematode genera varied between the Syrian governorates,
Pratylenchus spp., Meloidogyne spp. and Rotylenchulus infect most cotton fields
in all syrian governorates. The distribution was relatively uniform between the
governorates. They occurred in 80.7%, 46.6% and 32.95%, respectively, of
tested fields with an average density of 137.2, 59.6 and 574.3 juveniles/100 cm3
soil, respectively. meanwhile, the genus Tylenchorhynchus was found in central
region only. Rotylenchulus was more prevalent in the heavier soils, but
Meloidogyne. was not influenced by soil type. The other nematode genera
detected in this survey were less frequent, their frequency of occurrence were
for Hoplolaimus (19.3%), Scutellonema (31.8%), Tylenchorhynchus (31.8%),
Helicotylenchus (30.7%), Rotylenchus (36.4%), Tylenchus (18.2%), Xiphinema
(3.4%).
Monthly population fluctuations of plant parasitic nematode population
associated with root of cotton in central province fields in Syria were studied
over a 2-year period 2008-2009. In both years, the differences between monthly
samples were not
significant. Average of nematode population density in soil
decreased after sowing (May) and near the end of the season (at harvest) in
both years and in all of the central province fields, then the numbers of
nematode increased slowly again in June to reach a peak at mid-season (July).
Ghab region had the higher population density (1180.8 juveniles/100cm3 soil).
An increase in numbers of nematode in soil was accompanied with a decrease
in number in roots. Negative correlation was observed between average of the
initial population density and reproduction factor. Pratylenchus, Meloidogyne
incognita, Rotylenchulus, Tylenchorhynchus were dominant nematode species
in these fields. Also, the infestation of the first three nematode species was not
uniform.
In spite of an increase of farming experiance, producers are still facing
many obstacles which affect negatively on their final income.
It is clear from this study the decrease of productivity per unit area of wheat
and cotton crops and high produ
ction cost, caused decrease of the final income.
Most of the farmers, were not satisfied with cultivation of these crops, due to
increase of production cost, unsuitable price, lack of cultivation requirements
and the prices rising…..etc.
Also, the extension services offered to the farmers are poor and not at the
required level. That was the most important reason for the decrease of the
productivity. Consequently, it is possible to develop the agricultural activity by
improving the extension services and decreasing the prices of production
requirement and improving the selling prices. Therefore, it is necessary to
decrease the production costs of wheat and cotton crops, increase their
productivity, improve and activate the extension units work and spread
awareness and knowledge about modern methods of cultivation as well as ways
of decreasing the productivity costs, the factors which help to increase the
productivity from unit area, and acquainting the farmers to other crops, which
could be alternative crops in the future.
The Syrian Agricultural Sector plays an important role in the national
economy for the sector offers jop opportunities for about 50% of the total
Syrian Labor Forces. Furthermore, the sector Provides foods and clothes for
citizens, raw materials f
or national industry and ameliorates trade balance
deficit.
Cotton is considered one of the social and strategic crop because about 18%
of the total Syrian Labor Forces are engaged in cotton affairs starting from
plantation to consumers. Additionally, cotton is an exporting crop. In this
regard, cotton exporting goods include raw materials, delinted, weaving,
textiles and clothes with values of tenths of billions of Syrian Pounds annually.
- Cotton cultivation comprises about 20% of the annually irrigated areas,
and thus reflecting its relative importance of the Syrian Agriculture. Therefore,
our economical study on cotton includes several aspects such as agricultural,
productivity, trading, social and industrialization. The study is based on official
statistical data, which was been analyzed and discussed in according with
certified scientific principles for such studies.
