Fertilizer trials on barley in northern Syria [Hordeum vulgare]
1993
Wahbi, A. | Jones, M.J. (ICARDA, Aleppo (Syria)) | Jabbour, E. | El-Hajj, K. | Safee, A. (Ministry of Agriculture and Agrarian Reform, Damascus (Syria). Soils Directorate)
Seventy-five trials conducted over 4 years on farmers' fields in northern Syria indicated widespread barley responses to N and P fertilizer. Responses to P were most frequent in drier areas, while responses to N became larger and more frequent with increasing rainfall. Responses were influenced by the nature of the previous crop and by soil available N and P status at planting time
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