The study was conducted on winter date (15th of Febraury), during 2015 and
2016 seasons, to study the effect of spraying calcium chloride CaCl2
concentrations (2, 4, and 6%), on the manufacture traits assigned in randomized
completely block design (RCBD) with four replicates.
In this study, the virulence of six isolates of nematode
Heterodera schachtii Shmidt which had isolated from fields in
Syrian Governorates (Homs, Hamah, Idlib, Aleppo, Der-Azzoor and
Arraqqa), was compared on sugar beet in a greenhouse pot
experi
ment. Final populations of the nematode were calculated, RF
(Reproduction factor) of the nematode were calculated for every
isolate.
The study has shown that the apparent bulk density of soil increases with the increase
of compression and moisture during press. The maximum rate of increase in depth was 0 –
20 cm that amounted 0.38g/cm3 at compression by 257.44-kilopascal and moi
sture
average at compression by 19.03% (equal to 60% of the field capacity average of the soil)
in comparison with the non-existence of compression. In addition, the size of the pores
bigger than 50 microns decreased at the same above compression and above moisture in
depth of zero – 20 cm by 20.20%. The size of pores bigger than 10 microns decreased by
20.65% in comparison with the non-existence of compression. While it was noted that the
the maximum loss of root yield that amounted 17.52%, at compression by 257.44
kilopascal, and moisture 19.03%.
تضمنت هذه الدراسة واقع تسويق محصول الشوندر السكري في سورية بشكل عام , وفي منطقة الغاب بشكل خاص .
نفذت التجربة الحقلية في مركز البحوث العلمية الزراعية بالرقة خلال الموسمين الزراعيين 2011-2012 و 2012- 2013.
أثر بعض العوامل الزراعية في مكافحة مرض عفن الجذور والتاج الرايزوكتوني في الشوندر السكري تحت ظروف محافظة دير الزور
The research was carried out at Agricultural Scientific Research Center of Hama
in tow season 2010/2011. Aiming to evaluate the effect of nitrogen fertilization and
planting date on some Productive and Technological characters of sugar beet Mono
g
erm(Simper cultivar) and Multi germ (HM10 cultivar). Results showed an effect of
fertilization on productive and technological characters of sugar beet. Increasing the rate of
nitrogen fertilizer to 250kg N.ha¹ caused a significant increase in root yield and actual
sugar yield (12.88 , 12.15 ton . ha¹) respectively, but it badly affected the sugar content in
the roots, juice polarity and juice purity (14.68, 15.95, 80.45%) respectively. Mono germ
Simper was found significantly superior compared to Multi germ HM10 in root yield, Brix,
root sugar content and juice polarity. Results showed that planting date 1/11 was found
significantly superior compared to dates 1/10, 15/10 for root yield, Brix, juice purity,
actual sugar yield. In conclusion, Simper (Mono germ) was suitable in planting date 1/11 at
nitrogen level of (200-250kg N.ha¹).
This research was carried out at the Agricultural Scientific Research Center in AL-Gab during 2009-2010 and 2010-2011 seasons in fall. The experiment was laid according to split plot design with three replicates, to study the effect of potassium fert
ilization on the technological and productive properties of two varieties of sugar beet (Suprima, D.S. 9004) in AL-Gab area. Four levels of potassium fertilization (0-120-170-220 kg K2O/h) were used. The results showed that the addition of potassium fertilization significantly improved the qualitative and quantitative properties of sugar beet. The higher sucrose (%), yield of root (ton/h) and white sucrose (ton/h) were at the potassium level 170 Kg K2O/h which reached 16.18%, 83.02 ton/h and 11.65 ton/h respectively.
دراسة تأثير تعديل عمق أخذ عينة التربة للتوصية السمادية بالآزوت لتقدير معدلات التسميد الآزوتي في انتاجية محصول الشوندر السكري ونوعيته
دراسة بعض التغيرات في الصفات الإنتاجية والنوعية لصنفين من الشوندر السكري (Beta vulgaris L) ما بعد الحصاد في العروة الصيفية مقارنة بالعروة الخريفية في دير الزور
