Influence of Phosphorus Fertilizers Application on Phosphorus use Efficiency and Grain Protein of Winter Wheat in Alkaline-Calcareous Soil, Southern Algeria

Abstract

hree 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.

The Effect of Renewable Phosphorus Biofertilizers on Selected Wheat Grain Quality Parameters

“…This finding indicates that neither the form of P carrier nor the dose of P played a significant role in the development of these grain quality characteristics. The studies by Gaj et al [62] and Boukhalfa-Deraoui et al [63] found no significant difference in grain protein content as a function of P source used. Similarly, Wołoszyk et al [64] observed no effect of different waste-derived soil amendments on test weight, protein content, and Zeleny test.…”

“…The lack of response of technological properties of the grain, particularly protein, gluten, and starch content, to an increase in P dosage may be explained by the findings of Agapie and Bostan [66], which suggest that unilaterally applied P does not significantly affect the studied qualitative parameters, but is used as a support for N. Furthermore, the results of the present study are consistent with the findings of Eppendorfer [67] that P affects the amino acid composition of wheat grain only indirectly through its effects on N concentration. Boukhalfa-Deraoui et al [63] reported that the P application rates (30, 60, 90 and 120 kg P ha −1 ) were not significant for the protein content of the wheat grain when the N fertilization level was fixed. In the present study, the N rate was the same for all plots within each experiment, including those with no P treatments.…”

“…Jordan-Meille et al [72] reported non-significant effects of P treatments (no P; 25-100 kg P ha −1 y −1 ) on the concentration of some macronutrients, micronutrients, and trace elements in wheat grain (long-term experiment). On the other hand, positive responses of protein content [63,[73][74][75], hectoliter (test) weight [75,76], gluten content [75] to P application compared to no P treatments have been reported by other authors, with no differences between P rates in some cases [73,74]. In other studies conducted under different environmental conditions, the application of external P was observed to have varying effects on the amino acid [77][78][79][80] and elemental content [81,82] of wheat grain.…”