1. 2. 2009. 7. 28 (2m/ m 2 ) 5 g n 10 1000 ppm 5n 30n 120 .... 2. 2009. 7. 28 (2m/ m 2 ) 5 g n 10...

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Page 1: 1. 2. 2009. 7. 28 (2m/ m 2 ) 5 g N 10 1000 ppm 5N 30N 120 .... 2. 2009. 7. 28 (2m/ m 2 ) 5 g N 10 1000 ppm 5N 30N 120 ) 60 120 (B) 0 10 20 30 60 120 ikJï(pprn) 1200 1000 800 600 400