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http://dx.doi.org/10.5333/KGFS.2002.22.1.037

Studies on the Application Rate of Cattle Slurry and Urea N on Productivity of Silage Corn and Leaching of Nitrogen in Lysimeter  

육완방 (건국대학교 축산대학)
최기춘 (건국대학교 축산대학)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.22, no.1, 2002 , pp. 37-44 More about this Journal
Abstract
This study was conducted to investigate the effects of the application rate of cattle slury and urea N on productivity of corn and environmental pollution in com cultivation soil. The experiment was conformed in lysimeter which was constructed with 0.33m diameter and 1m height. This study was arranged in split plot design. Main plots were the application rate of mineral fertilizer, as urea, such as 0, 100 and 200kgN/ha and subplots were the application rate of cattle slurry, such as 0, 200 and 400kgN/ha. The results obtained were summarized as follows. 1. Dry matter yields of corn increased as the application rate of cattle slurry and urea increased. 2. Total nitrogen content of whole corn was increased as the application rate of cattle slurry and urea increased 3. The average nitrate content in leaching water by application rate of the slurry and urea N was 7.78$\mu\textrm{g}$/$m\ell$(ranged from 6.27 to 9.02$\mu\textrm{g}$/$m\ell$). Nitrate content was hardly influenced by application rates of the slurry and urea. However, nitrate content rises in proportion to a rise in precipitation.
Keywords
Animal Manure; Corn; Cattle slurry; Nitrate leaching; lysimeter;
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