Effect of shallow tillage, moldboard plowing, straw management and compost addition on soil organic matter and nitrogen in a dryland barley/wheat-vetch rotationRolf Sommer, J. Diekmann, Man Singh et al.|Soil and Tillage Research|2011Cited by 86
Chapter 2 Nitrogen in Rainfed and Irrigated Cropping Systems in the Mediterranean RegionJohn Ryan, Ann McNeill, H. Ibrikçi et al.|Advances in agronomy|2009Cited by 74
Fertilizer Best Management Practices: A Perspective from the Dryland West Asia–North Africa RegionJohn Ryan, H. Ibrikçi, Rolf Sommer|Journal of Agronomy and Crop Science|2011Cited by 65
Micronutrient Constraints to Crop Production in the Middle East–West Asia RegionJohn Ryan, Emin Bülent Erenoğlu, H. Ibrikçi et al.|Advances in agronomy|2013Cited by 65
Significance of Phosphorus for Agriculture and the Environment in the West Asia and North Africa RegionJohn Ryan, Abdul Rashid, H. Ibrikçi et al.|Advances in agronomy|2012Cited by 57