عناصر مشابهة

• The Effect of Inorganic and Organic Nitrogen Sources and Their Combination on Growth and Metabolism of Vesicularia dubyana
  بواسطة: Al Ghamdi, Abd Allah Ahmed منشور: (2003)
• Effect Of Coating Some Nitrogen Fertilizers On Its Availability To Plants
  بواسطة: Abd Alaziz, Abd Alaziz Ibrahim منشور: (1984)
• Effect of plant density and nitrogen fertilizer on the yield of marjoram (Origanum syriacum l.) under field conditions
  بواسطة: Al Kiyyam, Mua'd Abd Allatif Dhiab منشور: (2004)
• Effect of Plant Density and Nitrogen Fertilization on Safflower
  بواسطة: Khalil, Abd Alghany Abd Almoety Mansour منشور: (1988)
• Effect of soil pH on phytoavailability of nitrogen in biotechnology by-products and animal manures
  بواسطة: Al Romian, Fahad Mohamad منشور: (1999)