関東地域の有機栽培に適したダイズ品種の特性および栽培体系

日本作物学会紀事

田澤 純子¹  三浦 重典¹ 

[1] 農研機構中央農業総合研究センター

关键词: 開花期;    晩生;    晩播;    有機栽培;    播種期;    ダイズ;    Flowering time;    Late maturity;    Late sowing;    Organic cultivation;    Sowing time;    Soybean;   

DOI  :  10.1626/jcs.85.23

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The establishment of organic soybean cultivating systems is important for expansion of organic soybean fields in Japan. Field experiments for organic soybean cultivation were conducted for 3 years in the Kanto Area, in the eastern part of Japan. The characteristics of the soybean cultivars and sowing time were investigated under organic and conventional conditions. The yield of the late maturing cultivar, ‘Fukuyutaka’ was higher than that of the early maturing cultivar ‘Tachinagaha’ in the organic field. The yield under organic conditions was lower than in conventional conditions mainly due to damage by sap-sucking stinkbugs. However, the damage decreased with the delay in flowering time in both early and late mature cultivars. A correlation between the flowering time and yield indicated that the yield in organic conditions was highest when the flowering time was mid-August in Tachinagaha and early- to mid-August in Fukuyutaka. Late maturing cultivars sown before early or mid-July gave a yield of more than 200 g m-2. These findings indicated that early maturing cultivars should be sown around middle July, which is later than in conventional conditions, and late maturing cultivars should be sown before early or middle July in organic soybean production.

【 授权许可】

Unknown