تمت الدراسة بسيدي المصري بوزارة الزراعة طرابلس في منطقة بها أشجار الصنوبر وأخري خالية من الأشجار وذلك لمعرفة تأثير الأشجار على خصوبة التربة والتغيرات التي تطرأ فيها arabic 157 English 0
عبدالله القدافي بعيو بيت المال(1-2010)

في الدراسة تم التعرف على مختلف الأنواع النباتية الموجودة بالمرعي وتحديد الأنواع السائدة منها ومعرفة مدى أهميتها
د. عبدالله القدافي بيت المال, (10-2010)

The present study was conducted to figure out the effect of some mineral and biofertilizers on nutritional value of Acacia saligna seedlings. This study was carried for 14 months at the nursery of Forestry and Wood Technology Department, Faculty of Agriculture, Alexandria University-Egypt. Three commercial mineral fertilizers were used in this study: Urea, Calcium superphosphate, and Potassium sulphate as a source of nitrogen, phosphorus, and potassium (NPK). In this study, six levels of mineral fertilization treatments were used [F0-F5]. The results of this study showed that Acacia saligna seedlings treated with F2& F3 fertilizers recorded the highest value of crude protein, whereas, treatment with F2 fertilizer showed the highest value of crude fat. In addition to that, the lowest content of crude fat was found in the seedlings of Acacia saligna treated with F5 (halexbiofertilizer). Seedlings treated with F4 fertilizer showed no significant difference in content of crude protein from that treated with F5fertilizer. i.e., the crude protein and crude fat were found to respond to mineral fertilizers, whereas, crude fiber and total ash are not effected by adding fertilizers.
Abduraof Mustafa Omar Alosif(4-2021)