Evaluation of the Effect of Amino Acids, Sulphur and Farmyard Manure Along with Phosphorus Fertilization on Wheat Production, Nutrient Status and Soil Properties

Two field experiments were conducted in the Field of Agricultural Farm of Sids Agricultural Research Station to evaluate the effect of phosphorus rates (0.0, 7.5 and 15 kg P2O5/fed) and some stimulators, i.e.; without, 2% foliar spraying of amino acids twice, 100 kg elemental sulphur and 10 ton FYM/fed) on growth (plant height and dry weight/plant), yield components (number of spikes/m2, number of grains/spike and 1000-grain weight), yields (grain and straw yields) and N, P and K concentrations and uptake in grains and straw as well as some soil properties after harvesting, i.e.; soil available N, P and K as well as pH, EC and soil organic matter. The results showed that increasing phosphorus rates increased plant height, dry weight/plant, number of spikes/m2, number of grains/spike, 1000-grain weight, grain and straw yields, nitrogen and phosphorus content in grains and straw, protein percentage in grains, and NPK uptake in grains and/or straw as well as soil available P in soil after harvesting. Applied amino acids, sulphur or FYM significantly increased all studied growth parameters, yield and its components and nutrient content and uptake in grains and straw over untreated control. FYM improved the N, P and K availability and soil pH and organic matter, while soil salinity was increased due to FYM application. However, sulphur improved soil available P and K and soil pH.