인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
피인용 0
초록·키워드
Optimizing the application of N fertilization and proper N management is an important factor for biomass production systems. However, recent increases in N fertilizer cost and the negative environmental impacts of chemical fertilizers have prompted the use of legumes as a source of N in sustainable biomass production systems. Overall objects for this study were to determine 1) if different urea nitrogen rates, planting spacing and growth years affected prairie cordgrass biomass (Spartina pectinata Link.) yield and yield components in prairie cordgrass monoculture, and fertilizer N replacement value (FNRV) of kura clover (Trifolium ambiguum Bieb.) in prairie cordgrass and kura clover mixture compared to monoculture prairie; 2) examine how kura clover and different urea N rates, plant spacing and growth years affected mineral compositions, cell wall composition, and theoretical ethanol yield (TEY) of prairie cordgrass/kura clover mixtures and prairie cordgrass monocultures; 3) determine kura clover root exudate flavonoids composition and role of flavonoids in kura clover nodule development. Yields varied by location and ranged from 6.4 to 16.6 Mg ha<SUP>-1</SUP>. Urea N treatments, year, spacing and a year x spacing interaction affected prairie cordgrass production at all locations. Yield of prairie cordgrass with 0 N was equal to or less than the yield of prairie cordgrass grown with kura clover at all locations the first two years after establishment; however, there was a N value associated with prairie cordgrass grown with kura clover in the third year. FNRV of kura clover ranged from 25 to 82 Kg N ha<SUP>-1</SUP> in the third year. Nitrogen application significantly affected mineral composition, cell wall composition and TEY at most locations. Prairie cordgrass and kura clover mixtures had less desirable mineral concentrations, cell wall compositions and theoretical ethanol yield than prairie cordgrass monocultures. Variability in TEY ha<SUP>-1</SUP> was much greater than TEY Mg<SUP>-1</SUP>.
본문·목차
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최근 본 자료 전체보기
UCI(KEPA) : I410-ECN-0101-2016-521-002214012
