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논문 기본 정보

자료유형
학술저널
저자정보
조익환 (대구대학교 농과대학) 이주삼 (연세대학교 문리대학) 안종호 (연세대학교 문리대학)
저널정보
한국초지조사료학회 한국초지조사료학회지 한국초지조사료학회지 제14권 제4호
발행연도
1994.1
수록면
257 - 263 (7page)

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초록· 키워드

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The experiment was canied out to investigate the effects of cutting frequencies (3, 4 and 5 cuts per year) in relation to fertilization of mineral nitrogen on crude protein yield and the contents of crude protein and acid detergent fibre in orchardgms(Dacty1is glomerata L.). Tne results are as follows : 1. The content of crude protein increased according to the increase in cutting frequency and showed the highest in the 1st cut in all treatments. At 4 and 5 cutting frequencies per year, the content of crude protein increased in a large extent according to the increased fertilization of mineral nitrogen. However at 3 cutting frequency, the content of cmde protein appeared higher for no application of mineral nitrogen than for the treatments with fertilization. 2. 'Ihe content of acid detergent fibre(ADF) was considerably reduced at 4 and 5 cutting frequencies and in all treatments, the lowest were recorded in the 1st cut or in the last cut. At 3, 4 and 5 cutting frequencies, the highest ADF were shown in the 2nd cut, 3rd cut and 3rd cut respectively. However, the general trend was that the content of ADF was greatly reduced according to increased level of mineral nitrogen fertilization. 3. The yeild of cmde protein was the highest at 5 cutting frequency(l.2 ton DMIha) and it indicated that the yield of cmde protein increased in accordance to the increase in fertilization of mineral nitrogen and cutting frequency. 4. In all treatments, positive correlation(p<0.001) between the yeilds of crude protein and annual dry matter yield appeared. Negative correIation(p<O.Ol) was recorded between the contents of crude protein and ADF at 4 and 5 cutting frequencies. Between the content of ADF and annual dry matter yield at 4 cutting frequency and between the content of cmde protein and annual dry matter yield at 5 cutting Erequency, positive and negative correlation(p< 0.05) respectively were record.

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