Improvement of Soybean Growth and Yield (Glycine max L.) by Inter-row Stripe Tillage in Upland Fields Converted from Paddy Fields

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
46-02-01.pdf491.19 KB

We adopted ‘inter-row strip tillage’ (IST), which involves conducting tillage between rows and sowing on no-tillage soil, to cultivate soybeans in upland fields converted from paddy fields (UFCP) and examined the effect on soil water content, growth and soybean yield. The three phase of no-tillage soil in IST differs from soil harrowed via conventional tillage, which shows lower solid and liquid phases. No-tillage soil in IST showed a larger water content under drought conditions and less fluctuation of the liquid phase between conditions of drought and excess moisture compared to those of harrowing soil in conventional tillage. The plants in IST had more root nodules and showed higher SPAD values. They were also longer, with more nodes on the main stem, and a larger dry weight at the flowering stage. The IST yield exceeded that in conventional tillage, due to the higher number of pods and 100-kernel-weight. The factors of superior growth and higher IST yield were attributed to the property of the no-tillage soil in IST, which alleviates the fluctuation of the soil water content in UFCP. The relationships between soil permeability and property remain to be evaluated, while there is also a need to improve the IST operational efficiency.

作成者 YOSHINAGA Satoshi


root nodule

soil moisture

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 115
終了ページ 121
DOI 10.6090/jarq.46.115
権利 Japan International Research Center for Agricultural Sciences
言語 eng