عناصر مشابهة

• Studies on the Symbiotic Nitrogen Fixation by Root-Nodule Bacteria of Lentil Plants (Lens Esculenta)
  بواسطة: Iskandar, Mohamed Hussien Mohamed منشور: (1990)
• MicroBiological Studies on Nitrogen Mineralization in different Soils
  بواسطة: Abdel-Fattah, Hassan Ibrahim منشور: (1990)
• Studies on Enzyme Production by Some Microorganisms
  بواسطة: Ibrahim, Walaa Yaheia Mortada منشور: (1991)
• Studies on Microbial Lipases
  بواسطة: El Makhzangy, Attia Mohamed Attia منشور: (1989)
• Studies on intercropped corn
  بواسطة: Sarhan, Ali Abd Alazeim Ahmed منشور: (1990)