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Effects of Combined Micronutrient(Fe, Mn, Cu, Zn, Mo and B) Application on Forage Traits in Pure and Mixed Swards of Orchardgrass and White Clover III. Changes in the contents and yields of N-compounds(crude/pure protein and soluble N-compounds) in forage plants
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Orchardgrass 및 White Clover의 단파 및 혼파 재배에서 미량요소(Fe, Mn, Cu, Zn, Mo, B)의 조합시비가 목초의 특성에 미치는 영향 III. 목초 중 질소화합물(조/순단백질 및 수용성 질소화합물)의 함량 및 수량 변화

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Type
Academic journal
Author
정연규 (순천대학교 농업생명과학대학)
Journal
THE KOREAN SOCIETY OF GRASSLSND SCIENCE 한국초지조사료학회지 한국초지조사료학회지 제24권 제1호 KCI Accredited Journals
Published
2004.1
Pages
1 - 10 (10page)

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Effects of Combined Micronutrient(Fe, Mn, Cu, Zn, Mo and B) Application on Forage Traits in Pure and Mixed Swards of Orchardgrass and White Clover III. Changes in the contents and yields of N-compounds(crude/pure protein and soluble N-compounds) in forage plants
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This pot experiment was conducted to investigate the effects of combined micronutrient application($T_1$;control, $T_2$; Fe, $T_3$; Fe+Mn, $T_4$; Fe+Mn+Cu, $T_5$ ; Fe+Mn+Cu+Zn, $T_6$ ; Fe+Mn+Cu+Zn+Mo, $T_7$ ; Fe+Mn+Cu+Zn+Mo+B) on forage performance of pure and mixed cultures of orchardgrass and white clover. The third part was concerned with the changes in the contents and yields of N-compounds (crude/pure protein and soluble N-compounds) in forages. The results obtained are summarized as follows: 1. The contents of N-compounds(crude/pure protein and soluble N-compounds) were generally different according to the forage species, whether it was a pure or mixed culture, and additional fertilization, especially N. In orchardgrass, these contents were relatively low at the $T_3$ and $T_6$ in both pure and mixed cultures. In white clover, these contents were relatively decreased by the $T_1$, $T_3$, and $T_6$ in mixed culture. 2. The treatments influenced relatively more on the yields of crude/pure protein than on the dry matter yields of forages, and this tendency was more significant in white clover than in orchardgrass. 3. In white clover, the great differences in the yields of crude protein by the treatments occurred especially in mixed culture and at 5th cut without no additional fertilization. In white clover, the positive effects of optimum treatments on the yields of crude protein seemed to be decreased by the additional fertilization, especially N. In mixed culture, the favorable growth of white clover by the optimum treatments tended to be positively related to the favorable contents and yields of N-compounds. The changes in the yields of pure protein were similar to the tendency of crude protein

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