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Effect of irrigation intervals and humic acid application on the chemical composition of blue panic plant (Panicum antidotale)

تأثير فترات الري وإضافة حمض الهيومك في التركيب الكيميائي لنبات البونيكام Panicum antidotale

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 Publication date 2020
and research's language is العربية
 Created by Shamra Editor




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The research was conducted at the Forestry Nursery of the Directorate of Agriculture in Deir Ezzor Governorate during the growing season of 2019. The objective of the study was to study the effect of humic acid application and different irrigation intervals on chemical composition of blue panic plant (Panicum antidotale). The experiment was implemented in a Randomized Complete Block Design (RCBD) by planting Panicum seeds in polyethylene bags filled with 2 soils to 1 sand mixture in four replicates. Whereas three irrigation intervals (7, 14, and 21 days) and two humic acid application treatments (control without addition and application of humic acid) were used. Fresh plant sample from each treatment was taken at each cut, and samples were dried at 70C until weight was stable. Chmeical compostion was conducted for the samples and dry matter %, crude protein %, crude fiber %, total carbohydrate %, and ether extract % were estimated according the the common methods. The results showed that the control treatment (irrigation every 7 days) was significantly superior to the two irrigation treatments every 14 days and 21 days in the percentage of soliable carbohydrates (42.09%). While, irrigation treatment every 14 days outperformed the other irrigation treatments and recorded the highest values of percentage of crude protein (17.07%) and the percentage of ether extract (2.73%). The irrigation treatment every 21 days gave the highest values of ash percentage (16.38%). No significant differences were recorded between the irrigation treatments for the percentage of dry matter and the percentage of crude fiber. The control treatment of humic acid outperformed the addition of humic acid interms of the percentage of crude fiber (CF), while the treatment of addition of humic acid outperformed the control in the percentages of crude protein (CP), ash and ether extract (EE). No significant differences were recorded between the application and control of humic acid treatments in dry matter % and the percentage of soluble carbohydrates. The effect of the interaction between irrigation intervals and the application of humic acid was significant for all the studied characteristics. The control treatment (irrigation every 7 days) with the addition of humic acid recorded the highest values for the percentage of soluble carbohydrates (42.92%). The irrigation treatment every 14 days with the addition of humic acid gave the highest values in the percentage of crude protein (17.81%), the percentage of ash (16.55%) and the percentage of extracted ether (2.81%). As for the irrigation treatment every 21 days with the addition of humic acid, had the highest values for the percentage of dry matter (96.25%)


Artificial intelligence review:
Research summary
تتناول هذه الدراسة تأثير فترات الري وإضافة حمض الهيومك على التركيب الكيميائي لنبات البونيكام (Panicum antidotale). نُفذت التجربة في مشتل الحراج بدير الزور، سوريا، خلال موسم 2019 باستخدام تصميم القطاعات العشوائية الكاملة (RCBD). زرعت بذور البونيكام في أكياس بولي إيثيلين مملوءة بخلطة ترابية مع الرمل بنسبة 1:2، واستخدمت ثلاث فترات ري (7، 14، 21 يوماً) ومعاملتين لإضافة حمض الهيومك (بدون إضافة، مع الإضافة بمعدل 4 ملليتر لكل لتر ماء). أظهرت النتائج أن معاملة الشاهد (الري كل 7 أيام) تفوقت معنوياً في نسبة الكربوهيدرات الذائبة (42.09%)، بينما تفوقت معاملة الري كل 14 يوماً في نسبة البروتين الخام (17.07%) والمستخلص الإيثيري (2.73%). أما معاملة الري كل 21 يوماً فقد أعطت أعلى القيم في نسبة الرماد (16.38%). لم تسجل فروق معنوية بين معاملات الري في نسبة المادة الجافة والألياف الخام. بالنسبة لإضافة حمض الهيومك، تفوقت معاملة عدم الإضافة في نسبة الألياف الخام، بينما تفوقت معاملة الإضافة في نسب البروتين الخام، الرماد، والمستخلص الإيثيري. لم تسجل فروق معنوية بين المعاملتين في نسبة المادة الجافة والكربوهيدرات الذائبة. أثر التفاعل الثنائي بين فترات الري وإضافة حمض الهيومك معنوياً في جميع الصفات المدروسة، حيث سجلت معاملة الشاهد مع إضافة حمض الهيومك أعلى القيم في نسبة الكربوهيدرات الذائبة (42.92%)، ومعاملة الري كل 14 يوماً مع إضافة حمض الهيومك أعلى القيم في نسب البروتين الخام (17.81%)، الرماد (16.55%)، والمستخلص الإيثيري (2.81%). بينما سجلت معاملة الري كل 21 يوماً مع إضافة حمض الهيومك أعلى القيم في نسبة المادة الجافة (96.25%).
Critical review
دراسة نقدية: تعتبر هذه الدراسة ذات أهمية كبيرة في مجال تحسين القيمة الغذائية لنباتات العلف في المناطق الجافة وشبه الجافة. ومع ذلك، هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الممكن توسيع نطاق التجربة لتشمل أنواع أخرى من الترب والمناطق الجغرافية المختلفة لضمان تعميم النتائج. ثانياً، لم تتناول الدراسة تأثير العوامل البيئية الأخرى مثل درجة الحرارة والرطوبة، والتي قد تؤثر على النتائج. أخيراً، كان من الممكن استخدام تقنيات تحليلية أكثر تقدماً للحصول على نتائج أكثر دقة وتفصيلية. على الرغم من هذه النقاط، فإن الدراسة تقدم مساهمة قيمة في فهم تأثير فترات الري وإضافة حمض الهيومك على التركيب الكيميائي لنبات البونيكام.
Questions related to the research
  1. ما هي فترات الري المستخدمة في الدراسة؟

    فترات الري المستخدمة في الدراسة هي 7، 14، و21 يوماً.

  2. ما هو تأثير إضافة حمض الهيومك على نسبة البروتين الخام في نبات البونيكام؟

    إضافة حمض الهيومك أدت إلى زيادة نسبة البروتين الخام في نبات البونيكام مقارنة بعدم الإضافة.

  3. ما هي أعلى نسبة للكربوهيدرات الذائبة وأي معاملة حققتها؟

    أعلى نسبة للكربوهيدرات الذائبة كانت 42.92% وحققتها معاملة الشاهد (الري كل 7 أيام) مع إضافة حمض الهيومك.

  4. هل كانت هناك فروق معنوية بين معاملات الري في نسبة المادة الجافة؟

    لم تسجل فروق معنوية بين معاملات الري في نسبة المادة الجافة.


References used
Phelps, B.(2000).Humic Acid Structure and Properties. Phelps Teknowledge. 29/12/1427.http://www.Pheplsteck.com
Saruhan, V.; A., Kusvuran and S., Babat (2011). The effect of different humic acid fertilization on yield and yield components performances of common millet (Panicum miliaceum L.). Sci Res Essays 6: 663–669
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