عناصر مشابهة

• Tillage practices, frequency of nitrogen fertillizer application and crop rotation as they affect soil moisture storage and yields
  بواسطة: Al Turshan, Mohammed Abd Elfattah منشور: (1991)
• Effect of giberellic acid and thiourea on dormancy period and yield of five potato cultivars,
  بواسطة: Al Fayyad, Musa منشور: (1988)
• Effect Of Herbicides And Nitrogen Fertilization Treatments On Wheat
  بواسطة: Hashem, Halim Hassan Ahmed منشور: (1993)
• Lentil residue and nitrogen application effects on suceeding barely crop
  بواسطة: Nanish, Nidal M. A. H. منشور: (1989)
• The Fertilizing Value For Some Organic Manures
  بواسطة: Zedain, Mohammed Ebrahim Al Sayed منشور: (1982)