율무의 사료가치에 관한 연구 2 질소의 시비수준이 율무의 청예수량과 조성분 함량에 미치는 영향 = Studies on the Feeding Values of Coix lacryma L . 2 . Effect of the fertilization level of nitrogen on the green yield and chemical composition of Coix lacryma L .

다국어 초록 (Multilingual Abstract)

To investigate the effect of the fertilization level of nitrogen on the grass height, green yield and chemical composition of Coix lacryma L., this experiment was carried out. The results obtained were as follow; 1. Grass height was 82-90㎝, 185-196㎝ and 186-201㎝ in the 2nd months and 3rd months after seeding and heading stage, respectively. Generally, the grass height increased as the fertilization level of nitrogen was increased. According to the cutting stage, grass height in the 3rd months after seeding and heading stage was higher (p$lt;0.05) than that in the 2nd cutting stage. 2. Green yield per 10 a. was 955-1835㎏, 3325-4608㎏ and 3815-5223㎏ in the 2nd months and 3rd months after seeding and heading stage, respectively. Green yield was greatly (p$lt;0.01) increased as the fertilization level of nitrogen was increased. According to the cutting stage, green yield in the 3rd months after seeding and heading stage was significantly (p$lt;0.01) higher than that in the 2nd months after seeding. 3. In the chemical composition on the dried basis, crude protein was 7.03-16.30% and the crude protein increased as the fertilization level of nitrogen was increased. According to cutting stage, the content of crude protein in the 3rd moths after seeding was lower than that in the 2nd months after seeding. The content of crude fiber was 26.42-37.21% and the crude fiber was not affected by the fertilization level of nitrogen. According to the cutting stage, the content of crude fiber in the 3rd months after seeding was 10% higher than that in the 2nd months after seeding. On the green basis, the content of crude protein was 1.76-3.10% and the crude protein was not affected by the fertilization level of nitrogen. According to the cutting stage, the content of crude protein in the 3rd months after seeding was lower than that in the 2nd months after seeding. The content of crude fiber was 5.02-8.93% and the crude fiber was not affected by the fertilization level of nitrogen.