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Register a new userدور الترمس الأبيض Lupinus albus sp في تحسين استجابة غراس الزفير Citrus aurantium للصخر الفوسفاتي كرديف للتغذية الفوسفورية في الزراعة العضوية
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Tishreen University رسالة ماجستير
Publication date
2016
fields
Agricultural Engineering
and research's language is
العربية
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دور الترمس الأبيض Lupinus albus sp في تحسين استجابة غراس الزفير Citrus aurantium للصخر الفوسفاتي كرديف للتغذية الفوسفورية في الزراعة العضوية
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References used
تقرير مكتب الحمضيات حول الإنتاج النهائي للحمضيات في سوريا 2016 وزراة الزراعة والإصلاح الزراعي
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The objectives of this were to investigate the response of Lupinus albus sp. to
phosphate rock (PR) as a source of phosphorus (P) nutrition, and to study the role organic
acid (Citric and Malic) in phosphorus dissolution from PR. Tow experiments we
re
conducted: 1) A greenhouse pot experiment, in order to study the response of white lupin
to the application of PR and Triple super phosphate TSP at three application rates (100-
450-800 ppm). 2)- A laboratory experiment in order to study the role of Citric and Malic
acids concentration and initial pH in P- release from PR. The results showed that Lupinus
albus sp. was able to use PR for P-nutrition, and has a relative agronomic effectiveness of
61% when compared to TSP. The possible Exuded organic acids such as Citric and Malic
were responsible for PR dissolution due to tow mechanisms: 64% of PR dissolution was
due to pH decrease in the rhizosphere area, and 34% due to chelating of calcium cations.
PR dissolution was increased by the increase organic acid concentration, but decreased
when the initial pH value increased. Dissolution was always more pronounced with citric
than malic acid.
The research was carried out in the agricultural season 2016-2017 the village of
DweirRaslan Tartous governorate with three planting dates (20 November - 10 December -
1 January) and three densities (12 - 14 - 16 plants / m2) Where the planting tim
e was the
main pieces and the plant density occupied the dissecting pieces once to study the effect of
planting date and plant density on some morphological characteristics of white thermos
plant.
The results showed that dates of the early dates (November 20) were higher in plant height,
with an average of 64 cm and surface area of the paper surface at an average of 24.367
thousand. M 2 / ha and in shape of the length of the century with an average of 7.50 cm.
As for the plant density, the plants of density12 plants / m 2 in the height of plant exceeded
an average of 65.6 cm and length of the century with an average of 8.13 cm, while the
plants of density 16 plants / m 2 in the area of paper area average 24.213 thousand. M2 / ha
The experiment was conducted at the vegetable research farm, Depart.of
Hort. and Forst. Resea., Nenivah during the growing season of ١٩٩٤ and ١٩٩٥.
The objective of the research was to investigate the effect of plant spacing
(١٠, ٢٠, ٣٠ cm) and phosphorus fertilizer (٠, ٢٥, ٥٠, ٧٥ kg.P٢O٥/donum),on
yield and other related traits of Cowpeas.
A pot exrpriment was conducted in a greenhouse in Tishreen University. The
experiment included three soils differ in their chemical properties: 1) heavy clay red soil
rich in iron oxides; 2) a silty loam basiltic soil; 3) a heavet clay red soil ric
h in total
calcium carbonate (34.8 %). Treatments include application of different levels of triple
super phosphate (TSP, 46 % P2O5) ranged from 0, 20, 40, 60, 80, 100, 150, to 200 mg P/kg
soil. Pots were sowned with maize (2 plants/pot) and grown for 48 days. At harvest, plant
were hatvested before flowering by cutting shoots and extracting roots which were oven
dried and weight were recorded prior to digestion and P determination in shoot and root
tissues. Samples of rhizosphere soils from each pot replicate were taken for P fractionation
and determination.
The response of maize to P application differs at period test according to soil type.
The increase in growth was linear with increasing P level of application in theheavy red
and calcareous red soils, while was polynomial in basilitic soil. The speed of growth
increase in response to P application was influenced by native available P in the soil prior
to application. The application of P led to linear increase in resin-P and MRP fraction in
the bicarbonate extract, but not the Po fraction of the bicarbonate extract. The quantities of
fixed applied P varied according to level of P application, the ratio of P uptake by maize
plants, and chemical properties of the soil type. The proportion of applied P that was fixed
increased linerarly with increasing level of P application. It constitutes 41.7,68.5 and66%
at level of P application (20 mg/kg soil), and decreasing to30.2, 41.9 and 59.1% at level of
P application (200 mg/kg soil) for red, basiltic, and calcerous red soils, respectively.
The experiment was performed at Agricultural Research Center in Jousiyet
Al-Kharab in Al-Qsair district, Homs governorate during the 2010-2011 season
to investigate the effect of planting depth and organic acids on saffron growth
and productivity.
Four treatments including amino acids, amino Humic,
mixture of them in addition to the control were applied. Each treatment was
comprised of three planting depths (10, 15 and 20 cm). Results showed that by
increasing planting depth up to 20 cm a significant reduction had resulted in
the percentage of rooted plants and number of shoots while there were no
significant differences between the two depths 10 vs. 15 cm. The number of
leaves and their length were not affected significantly with the increasing of
planting depths. The number of flower, wet and dry weights of the stigmas
were increased significantly with the increase of planting depth from 10 to
15 cm. The application of the humic acids had significant superiority overall
the other applications in rooted plant percentage, number of shoots, number of
flowers and the dry and wet weights of the stigmas, while the application of the
mixture came in the second rank in number of flowers and the dry and wet
weights of the stigmas. However, no significant differences were occurred
between the control and application of amino acids. The highest percentage of
rooted plants was observed in applying humic acids in all depths and the
percentage of rooted plants reached 100%. The highest number of flowers,
highest stigmas wet and dry weights were observed with the interaction
between applying humic acids at 15 cm depth. The highest number of shoots
and number of leaves appeared with the interaction between 20 cm depth and
humic acids treatment, the longist leaves were appeared with the interaction
between amino acids and 15 cm depth.
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