Effect of combined application of chemical and biological phosphorus and nitrogen fertilizers on yield and yield components of wheat
mahsa karimi
1
(
Department of agronomy, Ahvaz branch, Islamic Azad university, Iran
)
seyed keyvan marashi
2
(
Agronomy Department, Islamic Azad university, Ahvaz branch, Iran
)
Keywords: Grain yield, Wheat, Bio fertilizers, chemical fertilizers,
Abstract :
This experiment was conducted based on as factorial in a randomized randomized block design with 3 replications. The experiment was conducted with two factors, The first factor included four levels of phosphorus fertilizer : 1- 100% triple super phosphate. 2- 70% of triple super phosphate and the remainder through bio-fertilizer phosphate fertilizer2. 3- 40% of triple super phosphate and the remainder through bio-fertilizer phosphate fertilizer2. 4- 100% bio-fertilizer phosphate fertilizer2. The second factor included Three levels of nitrogen fertilizer: 1- 100% of urea. 2- 70% urea and the remainder through Azetobacter. 3- 40% urea and the remainder through Azetobacter. Results showed that the the maximum seed yield obtained in 70% of triple super phosphate and the remainder through bio-fertilizer phosphate fertilizer2 and 70% urea and the remainder through Azetobacter with (6740.13 kg/ha), minimum seed yield obtained in 100% bio-fertilizer phosphate fertilizer2 and 100% of urea with (3481.72 kg/ha). According to the conclusion the application of 70% of triple super phosphate and the remainder through bio-fertilizer phosphate fertilizer2 and 70% urea and the remainder through Azetobacter increases yield and yield components and in the region recommended.
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