圃場排水性の良否が北陸地域の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 of field;    圃場排水性;    Dry matter production;    乾物生産;    Enrei;    エンレイ;    Ridge-making simultaneous sowing;    畝立て播種;    Root;    æ ¹;    Seed production;    子実生産;    Soybean;    ダイズ;    Wet injury;    湿害;   

DOI  :  10.1626/jcs.80.65

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

In the Hokuriku district of Japan, there are many regions with gley soil that have inadequate drainage, leading to waterlogged conditions and significant plant damage. We grew soybean in ridge-cultivation systems for 3 years in fields with good and poor drainage. Yield was lower in the latter than in the former. The main factor for this outcome may be that soil moisture in the plow layer was higher in the poorly drained field. Plants grown in such a field have less nitrogen uptake, a smaller post-flowering leaf area index, reduced post-flowering root activity, reduced increase in dry weight of the top and root, fewer pre-flowering branch nodes per plant, and less flower buds and ripening pods per plant.

【 授权许可】

Unknown