Nitrogen Fixation and Utilization for Green Manure of Common Wild Legume Narrowleaf Vetch (Vicia angustifolia L.)

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
37-01-07.pdf313.47 KB

Narrowleaf vetch (Vicia angustifolia L.) (NLV) is a legume widely distributed in the Eurasian continent. Although commonly growing as a weed in cultivated areas, NLV could become a suitable species for cultivation as a green manure crop to increase the nitrogen content of soil. We examined NLV and a common green manure crop, Chinese milk vetch (Astragalus sinicus L.) (CMV), both in monocultures and in mixed cropping of the 2 species. The nitrogen-fixing activity and root nodule activity of the species were determined and the effects on the nitrogen (N) supply to soil were evaluated. CMV produced more plant N than NLV, largely as a response to better growth after the over-wintering period. The amount of atmospheric N fixed by NLV (4.3 g m-2) was only half of that fixed by CMV (8.6 g m-2). Nevertheless, the amount of N in NLV (up to 14 g m-2) was sufficient to supply the demand of the following crop. The mixed culture of CMV and NLV performed better than the monoculture. Since developing countries cannot afford to invest money on nitrogenous fertilizers or legume seeds, the use of the widely distributed NLV as a green manure might be effective and contribute to the sustainability of cropping systems.

作成者 CHO Young-Son MINETA Takuya HIDAKA Kazumasa

Chinese milk vetch (Astragalus sinicus L.)

公開者 Japan International Research Center for Agricultural Sciences
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
開始ページ 45
終了ページ 51
DOI 10.6090/jarq.37.45
権利 Japan International Research Center for Agricultural Sciences
言語 eng