1Laboratory of Saharan Bioressources, University of Kasdi Merbah Ouargla, P.O. Box: 511. 30, 000, Algeria
2Laboratory of Control of water in agriculture, ENSA, Algiers 16, 000, Algeria
3Laboratoire de recherche sur la phoeniciculture, University of Kasdi Merbah Ouargla, P.O. Box: 511. 30, 000, Algeria
*Corresponding Author: N. Boukhalfa-Deraoui, Laboratory of Saharan Bioressources, University of Kasdi Merbah Ouargla, P.O. Box: 511. 30, 000, Algeria. Email: boukhalfan2005@yahoo.fr
Online published on 29 February, 2020.
Three field experiments (2008 to 2011) were conducted to evaluate the ability of winter wheat (Triticum durum Desf. var. Carioca) to utilize and acquire soil phosphorus and nitrogen under different sources of phosphate fertilizers (Fosfactyl, Single super phosphate and Mono-ammonium-phosphate) and rates of applications (30, 60, 90 and 120 kg Pha-1) with a fixed level of nitrogen fertilization. Results revealed a significant effect of P rates on phosphorus use efficiency (PUE) and nitrogen use efficiency (NUE); however, P sources fertilizer had non-significant effect in all three cropping seasons. PUE and NUE decreased markedly with increasing P supply that did not result in an improvement of P and N uptake. Grain protein content was significantly influenced by phosphorus fertilization in 2008–09. The best values were obtained by Single super phosphate and P rate 60 kg ha-1.
Arid area, Durum wheat, Grain protein, NUE, Phosphorus fertilization, PUE
