B. HAKYEMEZ H, KAVDIR Y. Effects of Some Forage Crops and Mixture on Sunflower Yield and Soil Nitrogen Content. ajc [Internet]. 2010 Mar. 30 [cited 2024 Nov. 29];20(3):2251-6. Available from: https://asianpubs.org/index.php/ajchem/article/view/19237