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http://dx.doi.org/10.5333/KGFS.2003.23.2.071

Effects of Nitrogen Application Rate on Growth Characters, and Feed Value in Jeju Italian Millet  

조남기 (제주대학교 아열대농업동물과학연구소)
강영길 (제주대학교 아열대농업동물과학연구소)
송창길 (제주대학교 아열대농업동물과학연구소)
고동환 (제주대학교 아열대농업동물과학연구소)
조영일 (서울대학교)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.23, no.2, 2003 , pp. 71-76 More about this Journal
Abstract
In order to determine the influence of nitrogen on agronomic characters, forage yield and quality, Jeju Italian millet(Setaria italica Beauvis) was grown on the volcanic ash soil at the Experimental Farm of Cheju national university under the six levels of nitrogen rates (0, 50, 100, 150, 200, 250kg/ha) from May 1, 2000 to August 25, 2000. Days to heading was delayed 92∼98 days as nitrogen rate increased. Plant height was 96cm at 0kg N/ha. as N rate increased, grew gradually, was 134cm at 200kg N/ha, 135cm at 250kg N/ha, and was not significantly affected between the two plots. Fresh forage, dry matter, crude protein and TDN yield increased 18.88∼42.82MT/ha, 8.45 ∼12.25MT/ha, 0.76∼1.59MT/ha and 4.32∼6.79MT/ha, respectively, as the increasing of N rate, but were not significant between 200kg N/ha and 250kg N/ha. As N rate increased, crude protein, crude fat, NFE and TDN content increased 9.0∼13.0%, 1.4∼1.7%, 9% and 51.1∼55.5%, respectively, but crude ash and crude fiber content decreased 8.7∼8.2% and 34.9∼30.2%, respectively.
Keywords
Jeju Italian millet; Nitrogen application rate; Growth characters; Feed value;
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