Effect of Magnesium and Phosphorus levels on Their Contents in Wheat Plant Triticum aestivum L.

Abstract

To know the effects of different levels application of magnesium and phosphorus fertilizers and their interaction on growth and yield of wheat in two different soils texture. The study included a biological experiment (planting in plastic pots) involved four magnesium levels: 0, 30, 60, and 90 Kg.ha-1;as magnesium sulfate , four levels of phosphorus: 0, 40, 80, and 160 Kg.ha-1; as triple superphosphate, and two different soils texture: clay loam (S1) and sand (S2), were used. The wheat cultivar was Ibaa99 and Complete Random Design was used including four levels of both magnesium and phosphorus and two soils with three replicates.The results were as the followings:Significantly, both Mg and P contents increased in straw and grain by increasing added Mg and their higher increment was at 90 Kg.mg ha-1 in which were 2.04 and 4.22 g.Kg-1 plant dry mass of P concentration and 4.23 and 2.65 g.Kg-1 plant dry mass of Mg concentration for straw and grain, respectively.So Both Mg and P contents had increased in straw and grains with increasing added P and the higher P absorption value was at 160 Kg P.ha-1 of 2.16 and 5.04 g.Kg-1 plant dry mass for P content and 3.97 and 2.52 g.Kg-1 plant dry mass for Mg content of straw and grains, respectively.