واكنش مورفولوژيكي و عملكرد ذرت نسبت به تركيبات شيميايي آهن و مس

Reaction of morphologically and yield of corn to Fe and Cu

Thi s experiment was co nducted in research station of Yaso uj Azad Unive rsity in a fac torial experiment based on rand omi zed complete block de sign with four replications. Each replication consi sted of 12 treatments in four fertilizery level s including 2.5 per thousand of Fe-sulfate soluti on . 2.5 per thousand of Cu-sulfate solution in three stages of growth (4, 8& 12 leaves). During the experiment. the height of plant. leaf area index , time of tassel appearance, number of rows in cob, number of gra ins in row , weight of thousand grain s, yields in area unit , harvest inde x and the rate of grain protein were assessed. Thi s study showed that using spraying had significant differences in different growthstages except in the factors like plant height. time of tassel appearance and weight of thousands grain. Also using all microelement treatments had significan t effects to the lev el of I%. The most grain yield was in eight- leaf-stage with 11.05 ton/ha and after that four- and twelve-leaf- stages were in the second level. In case of using spraying treatments, the best results were related to 2.5 per thousand of Fe-sulfate solution and the least were related to control and 2.5 per thou sand of Cu-sulfatesolution. In evaluating the interaction between treatments, the best yield was related to 2.5 per thousand of Fe-sulfate solution in eight -leaf- stage and the least related to 2.5 per thou sand ofCu-sulfate solution and control. In the end , spraying of2.5 per thousand of Fe-sulfate solution in eight- leaf- stage without using Cu-sulfate, in man y cases dedicated the best results to itsel f. Thi s formulation can be used for increasing yield , enhan cing the products and removing food deficiencies.