Mohannad Al-Ghajar ^{(1) *}

• of Soil and Land Reclamation, Faculty of Agriculture, University of AL- Furat, Deir al- Ezzor,Syria .

(*Corresponding author: Dr. Mohannad Al-ghajar Email: mohanadghajar@ gmail.com

Received: 2/09/2020          Accepted: 19/10/2020

Abstract

Field experiment was conducted on wheat (Cham 6 variety) for the planting season 2018/2019 in a special field at the town of Safira –  Aleppo Governorate. To study and diagnosis the nutritional status of the wheat plant and Determination the data system Diagnosis and Recommendation Integrated (DRIS) system. The experiment consisted of 27 treatments with three levels of nitrogen (N0, N75, N150) kg/hec in the form of urea(N 46%) , phosphorus (P0, P40, P80) kg/hec in the form of( P2O5 45%) and potassium (K0, K20, K40) kg/hec in the form of( K2O 50%) and with three replications for each treatment. The results showed that there is a clear link between the DRIS system indicators and the physiological balance of the three elements (NPK) in grain on the one hand with the production quantity on the other, and the best balance of physiological (NPK ) was agreed with the treatment(N2P2K2) which gave (4525 kg /he), standard values of the wheat were determined according to the study of the ratios n /p , n/k and k/p  (15.01، 1.39، 10.76 ), C.V= )4.90 ، 4.05 ، 4.70 ) respectively.

Keywords: NPK, system diagnosis and recommendation integrated DRIS,wheat.
Full paper in Arabic: PDF