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Register a new userEffect of different levels of organic fertilizer and deficit irrigation on the morphological development and the productivity of lettuce
تأثير مستويات مختلفة من التسميد العضوي و الري الناقص في التطور المورفولوجي و إنتاجية نبات الخس.
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Tishreen University ورقة بحثية
Publication date
2018
fields
Rural Engineering
and research's language is
العربية
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أجريت تجربة حقلية في محطة بحوث حوط التابعة لمركز البحوث العلمية الزراعية في محافظة السويداء – الهيئة العامة للبحوث العلمية الزراعية خلال الموسم الزراعي 2016-2015 لدراسة أثر مستويات مختلفة من الري الناقص مع مستويات تسميد مختلفة من كومبوست قمامة المدن في بعض الخواص المورفولوجية و إنتاجية نبات الخس, و مقارنتها بالسماد المعدني شائع الاستخدام, صممت التجربة كقطع منشقة بثلاث مستويات للري ينشق عن كل منها أربع معاملات تسميد بالإضافة للشاهد غير المعامل و بثلاثة مكررات لكل منها. درس البحث ارتفاع النبات (H) و عدد أوراقه (N) و المساحة الورقية للورقة الواحدة LAL و للنبات الكامل LAP و مؤشر المساحة الورقية LAI, بالإضافة للوزن الرطب لرأس الخس و الإنتاجية الكلية للمساحة المزروعة. و تشير نتائج تفاعل معاملات الري و التسميد إلى الأثر الإيجابي الواضح للإضافات العضوية على المؤشرات الإنتاجية و فعالية تطبيق تقنية الري الناقص, و إلى تفوق المعاملة T11 تفوقاً معنوياً في كل المؤشرات المُقاسة على باقي المعاملات بزيادة في الغلة النهائية بلغت %169 مقارنة بالمعاملة T15 و %428 مقارنة بالمعاملة T35. كما تشير النتائج لإمكانية التوفير بنسبة %25 من كمية مياه الري المستهلكة باستخدام كومبوست قمامة المدن بدلاً عن السماد المعدني, و تبيّن أن الخليط العضوي المعدني حقق غلة أفضل بنسب بلغت (53 – 44 - 29) % مقارنة بالسماد المعدني المفرد في مستويات الري الثلاث المدروسة (T3 – T2- T1) على التوالي. تمنح هذه النتائج المزارع خيارات واسعة ينتقي منها ما يناسب المتاح لديه من مستلزمات الإنتاج, و فكرة واضحة عن الغلة المتوقعة بحسب المعاملة المختارة.
A field experiment was carried out in Hout research station- Agriculture research center in Swaida – General Commission For Scientific Research Agricultural during the growing season of 2015-2016 to study the effect of different levels of deficit irrigation with different levels of town refuse compost (TRC)on some morphological parameters and the productivity of lettuce and compare it with the common mineral fertilizers. The experiment was designed as a split block design with three levels of irrigation, each level has four fertilizing treatments and control with three replicates. The research has studied the plant height (H), the number of its leaves (N) ,the leaf area (LAL), the plant's leaves area (LAP), the leaves area index (LAI), in addition to the lettuce head's fresh weight and the total productivity of the planted area. The irrigation and fertilizing interaction results indicate to the obvious positive effect of the organic additions on the productivity parameters and the efficiency of deficit irrigation, and the significant superiority of T11 treatment in all of the measured parameters in compare with the other treatments with an increased final yield of %169 comparing with T15 and % 428 comparing with T35. The results also indicate to the possibility of saving %25 of the consumed amount of irrigation water by using TRC instead of mineral fertilizer , and reveal that the organicmineral combination achieved a better yield with percentages of ( 29- 44 – 53 )% comparing with single mineral fertilizer in the three studied irrigation levels (T1-T2-T3) respectively. These results give the farmer a wide range of possibilities to choose what suits his available productivity needs , and a clear idea about the expected yield according to the chosen treatment.
References used
AGGELIDES, S. M. and LONDRA, P.A. Effect of compost produced from town waste and sewage sludge on the physical properties of a loamy and a clay soil. Bioresource . Technology. Vol. 71 , 2000, 253-259
ALLEN, R., PEREIRA, L., RAES, D and SMITH, M. Crop evapotranspiration guidlines for computing crop water requierments .Irrigation and Drainage papper 56. Food and Agric. Organization of the united nations. Rome .Italy.12, 1998, 176
CELIK, I., ORTAS, I., and KILIC, S. Effects of compost mycorrhiza manure and fertilizer on some physical properties of a chromoxeret soil. Soil and Tillage research .Vol, 78, 2004 ,59-67
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The experiment carried out in the agricultural Center (Boqa) of Tishreen University,
in the province of Lattakia, during the agricultural season (2014), in order to study the
effect of different types (cattle, sheep, poultry) and rates (0, 15.30 to
n/ha) of the compost
on durum wheat (Doma1). It farmed on (11.23.2014), according to complete system of
randomized sectors (27 bis).The compost was added within the lines of Agriculture
(10/06/2014). The results showed a response to the average of all the studied traits (plant
density (plant/m2), plant height (cm), the length of awn (cm), grains/spike weight (g), the
weight of 1000 grains (g)) positively organic fertilizing. While no significant differences
were recorded in the averages of the traits studied (plant density (plant/m2), plant height
(cm), the length of awn (cm), grains/spike weight (g), 1000 grains weight (g)) under the
manure type. In the case of overlap between the type and the rate of organic manure, it has
recorded a significant and high differences between the treatments. The treatment (30
ton/ha-1 poultry) was the most influential of all the studied traits. It gave the following
results: plant density (331.70 plants/m2), plant height (95.85cm), the length of awn (16.24
cm), grains/spike weight (1.66 g), 1000 grains weight (49.57 g).
This study was carried out in the nursery gardens of Tishreen University in the
early spring period in 2014, to study the effect of different levels of dry organic manure in
the growth and productivity of potato plants (class Spunta), in randomized
complete
design, study included six treatments: control ( cow organic manure amount of 4 kg/m2)
and five treatment with five levels of dry organic manure (100-150-200-250-300 g/m2)
.The results showed an increase in stem height, number of stem, foliage area, production
and percent of standard tubers by adding dry organic manure at level of 250 g/m2 while
Treatment with 300g/m2 contributed an increase of folige area, height of plant and stem
number while causing reduced plant production,tuber average weight and production of
standard tubers.The result showed also no significant differences between the control and
the treatment of 250 g/m2dry organic manure in each of the folige area, production and
standard tubers
This study was conducted in Abu-Jarash farm at the Faculty of Agriculture,
Damascus University during the main season 2013 to evaluate the effect of soil
solarization and organic fertilization treatments on the productivity of some
maize genotypes
(Basel 1, Basel 2, Ghouta 1, Ghouta 82 and Local White). The
experiment was laid out according to split-split plot design with three
replications. The statistical analysis results clearly indicated to the existence of
variability in the response of studied maize genotypes to soil solarization and
organic fertilization treatments. The genotype Ghouta 82 surpassed in the traits
of plant height, leaf area index, 100-kernel weight and grain yield (150.25 cm,
2.84, 28.10 g and 7.99 ton.ha-1) respectively, as compared to other studied
genotypes and was closely followed by the genotype Basel 2 which recorded the
highest number of rows per ear (13.83 row/ear). Soil solarization for 45 days
before sowing and applying organic manures at the rate of 20 ton.ha-1
encouraged the traits of plant height, leaf area index, number of rows and
grains per ear, 100-kernel weight which was reflected on grain yield. Therefore
we can grow variety Ghouta 82 or hybrid Basel 2 to get higher yield of maize.
Predicting crop yield response to irrigation level is increasingly important to
optimize irrigation under limited available water and for enhancing
sustainability and profitable production. This study was carried out to evaluate
the performance of
CropWat model in predicting deficit irrigation effect on
cotton crop, and to explore some alternatives for cotton irrigation. Crop yield
and water use data were collected from a 3-yr (2007-2009) field experiment to
assess the response of drip-irrigated cotton to deficit irrigation (DI).
The experiment was carried out at the end of April during 2013 In Abi-
Jarash farm, Faculty of Agriculture, Damascus University in order to
determine the influence of organic fertilization on the growth and yield of Snap
bean. The snap bean ”Tema”
Phaseolus Varity, and organic fertilizer” Humax”
with two methods (root application and foliar spry) and two concentrations (2
and 4 g/L) were used. The organic fertilizer was used after two weeks of
germination and then two weeks between treatment and another and the
experiment was laid according to simple randomized block design. Results
showed that organic fertilizer caused an increase of plants growth and yield,
and the foliar spray method showed significant superiority (p<0.05) to some of
the studied parameter such as plant dry weight (6.89 g), leaf area (4595.44 cm2),
leaf area index (2.55), number of clusters (15.3 cluster/ plant), number of pods
(29.6 pod/plant), plant yield (156.9 g/plant), compared to the root applied
method. Results also showed no significant effect for the fertilizer
concentration.
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