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논문 기본 정보

자료유형
학술저널
저자정보
Wang, Xin-Lei (Department of Animal Science, Institute of Agriculture Science and Technology, College of Agriculture & Life Science, Chonnam National University) Park, Sang-Hyun (Department of Animal Science, Institute of Agriculture Science and Technology, College of Agriculture & Life Science, Chonnam National University) Lee, Bok-Rye (Department of Animal Science, Institute of Agriculture Science and Technology, College of Agriculture & Life Science, Chonnam National University) Jeong, Kwang-Hwa (National Institute of Animal Science, Rural Development Administration) Kim, Tae-Hwan (Department of Animal Science, Institute of Agriculture Science and Technology, College of Agriculture & Life Science, Chonnam National University)
저널정보
한국초지조사료학회 한국초지조사료학회지 한국초지조사료학회지 제38권 제3호
발행연도
2018.1
수록면
196 - 201 (6page)

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Soil is the main nitrogen (N) provider for plants but N in soil is not all available to advanced plants. Mineralization is a critical biological process for transferring organic N to inorganic N that can be used by plants directly. To investigate the effect of different levels of soil temperature and water content to soil mineralization, a field experiment was established on three different sites (A, B and C). We measured soil temperature, moisture and electrical conductivity once daily after swine slurry application. Average soil moisture and temperature in site A is the highest among three sites (40.9% and $9.7^{\circ}C$, respectively). Following is in site C (37.3% and $9.6^{\circ}C$) and the lowest is in site B (28.0% and $9.0^{\circ}C$). Ammonium N (NH4+-N) and nitrate N (NO3--N) were determined on the first and fifth day after treatment. Compared with site B and C, site A always had the highest soil total N content (1.54 g N kg-1 on day one; 1.22 g N kg-1 on day five) and highest NO3-- N content (93.18 mg N kg-1 on day one; 16.22 mg N kg-1 on day five) and a significant decrease on day five. Content of NH4+-N in site B and C reduced while in site A, it increased by 6.7%. Results revealed that net N mineralization positively correlated with soil temperature (P<0.5, $r=0.675^*$) and moisture (P<0.01, $r=0.770^{**}$), suggesting that to some extent, higher soil moisture and temperature contribute more to inorganic N that can be used by plants.

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