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Performance of overwinter cover crops in coastal Lebanon
المؤلفون المشاركون
Muawwad, A.
Ata Allah, T.
Rouphael, S.
Mjallal, M.
Tuma, E.
Hajj, A. K.
al-Hajj, S.
المصدر
العدد
المجلد 20، العدد 1 (30 يونيو/حزيران 2019)، ص ص. 89-103، 15ص.
الناشر
تاريخ النشر
2019-06-30
دولة النشر
لبنان
عدد الصفحات
15
التخصصات الرئيسية
الملخص EN
The effect of the cover crops, narbon vetch (Vicia narbonensis), oat (Avena sativa), forage radish (Raphanus sativus), on weed suppression and soil nitrogen was studied in field conditions overwinter.
The impact of their residues on the productivity of a subsequent corn crop was followed in the summer of the same year.
Between mid-November and March oat produced, on a dry weight basis, 915 g m-2 against 402 g m-2 for narbon vetch and 292 g m-2 for radish.
Consequently, weeds were suppressed best in the presence of oat.
Narbon vetch was less effective than radish in controlling weeds, as it was slower to get established.
In terms of mineral nitrogen, soils occupied by radish (13.1 mg kg'1 soil) presented smaller concentrations of ammonium-N than those by vetch (18.7 mg kg'1 soil) and the control (19.7 mg kg'1 soil).
Following the overwinter cover crops, plots were split into one half where roots only were incorporated, and another half receiving whole plants.
Residues of whole plants promoted higher production of corn in the booting and flowering stages, as compared to roots only.
At the 50% dough stage, the highest dry matter yield was 7.6 Mg ha'1 after narbon vetch.
Corn yield was the smallest after oat, due to N immobilization.
This was demonstrated, using the litter bag technique, when oat residues (15.6 g N kg-1) lost 31% of their N against 66% for radish residues (21.1 g N kg-1).
For an effective control of weeds and nutrient recycling a cover crop, such as oat, is most efficient.
In this case, the succeeding summer crop needs to receive some extra nitrogen.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Rouphael, S.& Muawwad, A.& Mjallal, M.& Tuma, E.& al-Hajj, S.& Hajj, A. K.…[et al.]. 2019. Performance of overwinter cover crops in coastal Lebanon. Lebanese Science Journal،Vol. 20, no. 1, pp.89-103.
https://search.emarefa.net/detail/BIM-891744
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Rouphael, S.…[et al.]. Performance of overwinter cover crops in coastal Lebanon. Lebanese Science Journal Vol. 20, no. 1 (2019), pp.89-103.
https://search.emarefa.net/detail/BIM-891744
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Rouphael, S.& Muawwad, A.& Mjallal, M.& Tuma, E.& al-Hajj, S.& Hajj, A. K.…[et al.]. Performance of overwinter cover crops in coastal Lebanon. Lebanese Science Journal. 2019. Vol. 20, no. 1, pp.89-103.
https://search.emarefa.net/detail/BIM-891744
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 101-103
رقم السجل
BIM-891744
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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