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	1.	No cover image available The effect of increasing phosphours concentration in sand culture on nodulation, growth and biological nitrogen fixation by legumes [microform] / Said Abbas Mohammed El-Sayed. by El-Sayed, Said Abbas Mohammed Publication details: 1989 Dissertation note: Thesis (Ph.D.)--Alexandria University,1989. Other title: تأثير التركيزات المتزايدة من الفوسفور علي تكوين العقد والنمو والتثبيت الحيوي بواسطة البقولبات في بيئة رملية. Availability: Items available for loan: Main (1)Call number: THESIS S-8802. Place hold Add to cart (remove)
	2.	No cover image available Effect of salinity and alkalinity on nitrogen fixation by some leguminous crops [microform]/ Mohamed Saleh Khadr. by Khadr,Mohamed Saleh Publication details: 1969 Dissertation note: Thesis (M.S.)--Al-Azhar University,1969. Availability: Items available for loan: Main (1)Call number: THESIS S-2666. Place hold Add to cart (remove)

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