Effects Of Different Fertilizers On Growth Of Acer Seedlings In Two Nurseries At Caspian Region Of Iran
2007
Rahmani., A., Member of Research Institute of Forest and Rangelands. | Khoshnevis., M., Member of Research Institute of Forest and Rangelands. | Nourshad., M., Expert of Afforestations and Parks Bureau of Chalus.
Two experiments were conducted to determine effects of N, P and manure fertilizers on growth of Acer velutinum in Shahrposht and Koloudeh nurseries (Chalus and Amol City).The seedlings were fertilized with Ammonium Sulfate, Triple Superphosphate and manure. The leveles of nitrogen applied were 0, 40 and 80 Kg/ha, the leveles of phosphat were 80 and 120 Kg/ha and the leveles of manure were 0 and 30 ton/ha. Data were collected from height and diameter of 15 seedlings and root measurment was done for three samples as well.Statistical Design of Factorial in Complete randomised blocks (CRB) with three replicates were used in each nursery. The basal- area of seedlings in Shahrposht nursery was significantly improved by nitrogen fertilizers. Seedling growth in Koloudeh nursery was improved significantly by manure fertilizers.Results clearly show difference between Kolodeh and Shahrposht nurseries in response to fertilizers.
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