北陸地域の排水不良転換畑における排水改善処理が ダイズの乾物と子実生産に及ぼす影響

日本作物学会紀事

古畑 昌巳¹  大野 智史¹  足立 一日出¹ 

[1] 中央農業総合研究センター北陸研究センター

关键词: Drainage improvement;    排水改善;    Dry matter production;    乾物生産;    Enrei;    エンレイ;    Poor drainage field;    排水不良転換畑;    Ridge-making simultaneous sowing;    畝立て播種;    Root;    æ ¹;    Seed production;    子実生産;    Soybean;    ダイズ;   

DOI  :  10.1626/jcs.80.103

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

We grew soybean using ridge-cultivation in a poorly drained field in the Hokuriku region of Japan for 3 years after drainage-improvement treatment. The soil moisture content of the plow layer in the improved plot was equal to or less than that in a non-treated control plot. Ponding on the plow pan during the rainy season was improved for 1–2 years after the treatment, but not in the third year. Plants grown in the treated field had more pre-flowering branch nodes per plant, heavier dry weight of top, larger leaf area index, higher nitrogen uptake during the seed filling mid-stage of growth and higher root activity after flowering than the control plants. The yield was increased by drainage-improvement treatment in the year of low yield, but not in the three-year average.

【 授权许可】

Unknown