Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Rumiko Kodashima"'
Publikováno v:
Horticultural Research (Japan). 9:311-317
岩手県の黒ボク土地帯でのホウレンソウ栽培土壌における可給態窒素量の推定法として0.4 M硫酸抽出法を採用し，抽出液の280 nmにおける吸光度と抽出窒素量との関係を検証したところ，
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ee6d24968f25634d11094439b857e58
https://doi.org/10.2503/hrj.9.311
https://doi.org/10.2503/hrj.9.311
Autor:
Junko Kasuga, Shingo Matsumoto, Mari Hirata, Nobuhisa Koga, Noriharu Ae, Rumiko Kodashima, Yohichi Koyama, Katsumasa Iijima
Publikováno v:
Biology and Fertility of Soils. 45:107-111
Phosphate buffer-extractable organic nitrogen (PEON), which can be extracted from soil with a 67-mM neutral phosphate buffer solution, is considered to be a major source of mineralizable nitrogen (N) that is ubiquitous in soil. We have developed a We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da256ce10d609137de167555459f7381
https://doi.org/10.1007/s00374-008-0325-z
https://doi.org/10.1007/s00374-008-0325-z
Autor:
Masaaki Hiraka, Noriharu Ae, Rumiko Kodashima, Shingo Matsumoto, Masaki Takahashi, Tsuyoshi Ono
Publikováno v:
Horticultural Research (Japan). 5:389-395
岩手県の主要品目であるホウレンソウを対象に1998年から2001年まで，県内で産出するオガクズ牛ふんたい肥の連用試験を行い，年間2～4作のホウレンソウを作付けして，生育，窒素吸収反
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd04e3001f71cb17b572266f3f03e799
https://doi.org/10.2503/hrj.5.389
https://doi.org/10.2503/hrj.5.389
Publikováno v:
Soil Science and Plant Nutrition. 52:134-134
(pp. 833–841) In order to learn the status of available soil nitrogen (N), two sequential extraction methods (A and B) were tested. Proposed methods are as follows. (A) Extraction with water, KCl, acetic acid, 1/15 M phosphate buffer, sulfuric acid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12592cf512c063ba9b16d06e9ed27163
https://doi.org/10.1111/j.1747-0765.2006.t01-5-.x
https://doi.org/10.1111/j.1747-0765.2006.t01-5-.x
Autor:
Shingo Matsumoto, Noriharu Ae, Yohichi Koyama, Katsumasa Iijima, Rumiko Kodashima, Mari Hirata, Junko Kasuga, Nobuhisa Koga
Publikováno v:
Biology & Fertility of Soils; Oct2008, Vol. 45 Issue 1, p107-111, 5p