نفذ هذا البحث في أراضي مركز البحوث العلمية الزراعية بدير الزور في الموسمين الزراعيين 2005-2006 و 2006 - 2007 حيث استخدم في الزراعة بذار وحيد الجنين من الصنف غزيرة في العروة الصيفية
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References used
إحصائيات منظمة الزراعة والأغذية التابعة للأمم المتحدة FAO للعام 2205
It is well established that sugar content of sugar beet increases as the plant
reaches the biological maturity stage. This means that the sugar beet plant
must be left in the field to complete its growth. Farmers are usually concerned
with the hig
hest yield of sugar beet roots regardless of their content of sugar,
but sugar-processing companies are concerned mainly with the amount of
sugar extracted from a certain weight of roots, in addition to the purity of the
sugary juice.
Farmers normally receives the price of their sugar beat crop based on the
sugar content of the crop. Thus, in this type of farming, biological control is a
worldwide-procedure.
Biological maturity depends on ways of yield formation and a close control
of the mechanisms of forming yield components (no. of roots / unit area;
average root weigh; average sugar content) which require a detailed study of
the characters of the grown cultivar and the overall conditions of the growing
area.
Results showed that harvesting of sugar beet sown in fall season befor the
plant completes it’s growing cycle (in June) results in a big yield in addition to a
reduction in sugar content in the roots which inturn results in a big loss in the
national economy.
Results indicated that delaying date of harvest up to ١٨th of July markedly
increased root and sugar yield as well as sugar content in the beet roots.
Increasing nitrogen rate up to ٤٠٠ kg / ha resulted in a marked increase in root
and sugar yield / ha . On the other hand, sucrose content gradually decreased
with excess nitrogen. Higher plant density (more than ١٠٠,٠٠٠ plants /ha)
enforce for late harvesting in comparison with other densities for at least ١٠
days to obtain high yield of roots and sugar.
The aim of the research was to study the effect of five mowing dates (vegetative growth, beginning of flowering inflorescences, beginning of flowering, full flowering, and completion of vegetative growth at the beginning of September for plants that had previously been mowed), on some morphological, physiological, and productivity indicators of common thyme.
The study included the reality of marketing crop sugar beet in Syria in general, and
in al ghabb 's area , in particular, has shown results that the problems and difficulties of
marketing sugar beet back to the non-compliance of farmers date of Agr
iculture
appropriate and space devoted to the cultivation of the crop sugar beet and assessed by the
General Authority to manage and develop Al Ghabb's area, in addition to the failure of the
extension units in turn supply the deadline cards provide timely and sufficient quantities to
farmers as a result of the process control system of favoritism in the distribution of cards
supply extension units.
In addition to the low energy manufacturing to the sugar mill, and its inability to
absorb the quantities produced in excess of the agricultural plan, along with breakdowns
lab frequent result gave the mechanisms used in it, and the need for frequent maintenance,
and low efficiency of some sections of the lab, and the control system favoritism determine
the degree of sweetness, as shown by the results Search also "high production and
marketing costs for sugar beet crop and is higher than its price.