The project was conducted at the research farm of FarmahiniPayam Noor University in 1390.The project was conducted in most randomized complete block with four replications of 8 plots. The treatments consisted of spraying elements like: zinc, iron, manganese, iron,
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The project was conducted at the research farm of FarmahiniPayam Noor University in 1390.The project was conducted in most randomized complete block with four replications of 8 plots. The treatments consisted of spraying elements like: zinc, iron, manganese, iron, manganese, zinc and iron, zinc, manganese, iron, zinc, manganese andtreating control. Fertilizers in a concentrations of 5 per1000 insulphate form were sprayed. Spraying was carried out in two stages, jointing and tassel emergence. The results showed that the effect of treatment on the characteristics of ash, fiber, protein, nitrogen, phosphorus, potassium, iron, zinc and manganese were significant. The usage ofIron, zinc and manganese leads to decreased fiber and phosphorus and nitrogen and potassium concentrations in forage sorghum. Also there is a negative relationship Between concentrations of Fe, Zn and Mn in plants.use one of them cause a decrease in density of other's.
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