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Register a new userEconometric Analysis For Cost of Production of Vegetables Grown Under Plastic Houses in Jordan Valley
دراسة التحليل القياسي لتكاليف إنتاج الخضر في البيوت البلاستيكية في مناطق الأغوار
1945
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هدف البحث إلى التعرف على كمية الإنتاج المثلى التي يتحقق عندها أعلى ربح ممكن من إنتاج الخضر المزروعة في البيوت البلاستيكية في مناطق الأغوار، و لتحقيق هذا الهدف تم استخدام أسلوب التحليل القياسي لدوال تكاليف إنتاج محاصيل الفاصوليا، الخيار، الفلفل الحار، الفلفل الحلو و البندورة في مناطق الدراسة و التي شملت دير علا، أغوار الكرك، الشونة الشمالية و الشونة الجنوبية. و قد تم اشتقاق دوال التكاليف المتوسطة و الحدية و من ثم دالة العرض لكل نوع من الخضروات التي شملتها الدراسة، حيث يستطيع المنتج تحديد الكمية المثلى من الإنتاج و التي يتحقق عندها أعلى ربح ممكن، و ذلك بمساواة التكاليف الحدية بسعر المنتج المتوقع، و كذلك تحديد نقطة التوقف عن الإنتاج إذا انخفض السعر عن حد معين و هو يمثل الحد الأدنى لمتوسط التكاليف المتغيرة.
The objective of the research aimes to estimate the optimum amount of output to produce from vegetables grown under plastic houses. The vegetables include tomatoes, green beans, cucumber, hot pepper, and sweet pepper in the Jordan Valley regions, However, cost function analysis was used in this research, average variable cost and marginal cost are derived from total cost function for each crop in each region. The optimum amount of out put to produce can be determined by equating marginal cost with price of product. The break even can be estimate by equating the price of product with the minimum average variable cost.
References used
التاجي، نبيل . ١٩٧٨ . الزراعة المحمية، مديرية البحث والإرشاد الزراعي، وزارة الزراعة، عمان، الأردن.
الحنيطي، دوخي. ١٩٩٤ . تحديد النمط المحصولي الأمثل لمزارع البيوت البلاستيكية في ثلاث مناطق زراعية مختلفة في الأردن، رسالة ماجستير، الجامعة الأردنية.
السويطي وآخرون، ١٩٨٥ . مشروع تطوير بيانات تكاليف الإنتاج للدول العربية، الخرطوم، تشرين أول.
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The research aimed to recognize the optimal level of Inputs used for
vegetables grown under plastic houses in highlands. These vegetables included
cucumber in first and second sowing, green beans, and sweet pepper. To realize
this objective, produ
ction function analysis was used for representative sample
of farmers in the area.
The research aimed to estimate the total cost, medium and marginal
cost, volumes and economic optimization production of rain feed lentil in the
first zone of Aleppo governorate using econometric models. Linear regression
analysis of a single equa
tion was applied to explain the relationship between
amount of production as an independent variable and the value of production
costs as the dependent variable.
The main objective of this study was to describe economic and econometric
analysis of cost functions of rain-feed barley production in the northern region
from Syria and determine the economically efficient size and the profitmaximizing
size, Prim
ary data collected in (2010) through research interviews
with farmers were used. Farms in the rainfed areas in. the northern region
were divided according to stabilization zones (1, 2, 3 and 4), Through the
descriptive economic analysis of costs of production of Farms in the rainfed
areas in the northern region were divided according to stabilization zones (1, 2,
3 and 4), Through the descriptive economic analysis of costs of production of
Barley, it was shown that the highest average cost of production of one dunum
in the northern region was 1859.3 sp. in zone (1) and the lowest average cost of
production of one dunum was 1694.5 sp. in zone (4), From the analysis of costs
and returns, the results indicated that the highest net return (profit) in the
northern region was 650.43 sp./dunum in zone (1), and the lowest net return
(profit) was 395.2 sp./dunum. in zone (3) Also, the results of the descriptive
economic analysis indicated that the lowest average cost of production of 1 kg
of barley was 8.3 sp. in zone (1 and 2), and the highest average cost of
production of 1 kg of oil was 9.3 sp. in zone (4), Using the econometric models
of cost functions, the economically efficient size and the profit-maximizing size
were computed and determined for each zone, indicating that farmers'
practices were too far from these sizes based on the econometric analysis;
namely the economically efficient size and the profit-maximizing size. Also the
results indicated that the economically efficient acreage size was 35.8 dunum in
zone (4), which was less than the actual area of this region.
Root rot is considered one of the serious widely spread tomato diseases in
plastic houses culture of Syria. Soil solarization, using transparent polyethylene
(PE) covering, was applied during July and August (١٩٩٤-١٩٩٦) in Tartoos
governorate for
controlling soilborne pathogenic fungi. Results indicated that,
native fungal populations in covered moist soil supplied with or without sulfur
were significantly reduced in comparison with the uncovered treatment.
The research was conducted in plastic green house for the 2013-2014, in Alqangerh
village, about 5 Km from the city of latakia, in order to study the effect of spraying the
leaves with some humic compounds and amino acids on growth and production o
f hybrids
of cucumber (Novo,Dorruk).
Spraying leaves with three organic fertilizers are (Huzone, Mol mixs), and two boats
Dbalin and Amino vega (an amino acid).
The results showed that all treatments of leaves spraying with organic fertilizer geve
better resultus with significant differences than the control treatment in all the studied traits
of both hybrids: (stem length, number of branches/plant, number of leaves/plant, leave area
cm2, the number of flowers on the stem, number of fruits on the stem, number of floral
branches, number of fruits on the branches).The treatment of spraying achieved with
mixture of humic compounds and amino acids increase with significant differences in both
the number of leaves/plant, number of branches/plant, the plant's stem length and number
of fruit on the stem in the hybrid Novo. while the treatment of spraying achieved of hiozon
increase with significant differences the number of branches/plant, the number flowers on
the branches and number of fruits on the branches was in the hybrid Dorok. As for the
early production and total production, the treatment of spraying with mixture of humic
compounds and amino acids with significant differences on other transaction when both
hybrids Novo and Dorruk amounted, respectivety (5 ، 4,1 kg/m2 ; 16 ، 14,8 kg/m2 ).
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