Investigating the Concentration of Micronutrients of two Wheat Cultivars by Integrated Application of Sulfur Granular Compost and Nitrogen Fertilizers

In order to study the effects of sulfur granular compost and nitrogen fertilizers on nutrient concentration of iron, zinc, manganese and copper in wheat shoots, with the aim of optimum using of chemical and organic fertilizers for achieving sustainable agriculture, were studied as completely randomized factorial design with treatments and four replicates at pot conditions in Gharakhil Agricultural Research Station. The first factor was consisted of three levels of nitrogen (zero, and mg/kg of soil) applied in the form of urea and the second factor was consisted of four levels of sulfur granular compost (zero, , and g/kg of soil) and the third factor (cultivars N and Darya ). As data showed, integrated use of organic fertilizers with nitrogen fertilizer (urea), Increased concentration of iron, zinc, manganese and copper in wheat compared to the control and the use of nitrogen and organic fertilizers alone. So, the combined application of mg/kg nitrogen along with g/kg of compost increased concentration of iron and manganese.

On the other hand, despite the increase in zinc and copper, the uptake of these two elements in plant were with Irregular changes. It seems, wheat was undergo interactions between the elements and compost by the possible presence of heavy metals and inhibition in biological processes. So, both cultivars showed a positive response to the combined application of nitrogen and compost fertilizers. N , however, was significantly superior to Darya.