国立研究開発法人 国際農林水産業研究センター | JIRCAS

Effects of Different Kinds of Fertilizer and Application Methods on δ<SUP>15</SUP>N Values of Tomato

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

Effects of different kinds of fertilizer and application methods on tomato yields and inorganic nutrient contents were investigated. The contribution of nitrogen usage to tomato production for each fertilizer application was also estimated by the stable isotope ratio of nitrogen. LSR (low sulfate slow-release fertilizer, LSR plot), daily application of liquid OK-F-1 fertilizer (OK-F-1 plot) and PEL (manure pellet fertilizer, PEL plot) yielded most among the eight different treatments. Fruit quality as measured by nitrogen content (related to amino acid content) was higher in the OK-F-1 treatment. In the conventional fertilization of mixing fertilizer in soil, roots absorbed soil nitrogen which affected the δ15N values of fruits, while in the daily application of liquid fertilizer (fertigation) there was little observed influence of soil nitrogen on the δ15N values of the upper parts of tomato. These results suggested that fertigation is an effective fertilization method which preserved soil nitrogen.

刊行年月2007-07-01
作成者NAKANO AkimasaUEHARA Yoichi
著者キーワード

organic products

quality

stable isotope

公開者Japan International Research Center for Agricultural Sciences
データ作成日2007-07-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
41
3
開始ページ219
終了ページ226
DOI10.6090/jarq.41.219
権利Japan International Research Center for Agricultural Sciences
言語eng