耐倒伏性ダイズ品種「タチナガハ」の耕うん同時畝立て狭畦栽培による生育，収量および抑草効果への影響

日本作物学会紀事

服部 誠¹  細川 寿²  藤田 与一³  樋口 泰浩³  南雲 芳文³ 

[1] 新潟県十日町地域振興局;農研機構中央農業総合研究センター;新潟県農業総合研究所作物研究センター

关键词: Intertillage and ridging;    中耕培土;    Lodging resistance;    耐倒伏性;    Relative PAR;    相対PAR;    Ridge-making and narrow row culture;    畝立て狭畦栽培;    Spraying Herbicide;    除草剤散布;    Tachinagaha;    タチナガハ;    Weed control;    抑草効果;   

DOI  :  10.1626/jcs.83.216

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The ridge-making narrow row culture was conducted in Niigata Prefecture using soybean cultivar “Tachinagaha” which has strong lodging resistance. We investigated the growth and yield of soybeans, and the degree of weed emergence. In the narrow row culture, the main stem length at maturity was relatively long as compared with that in ridge-making culture (conventional culture), but lodging was slight. The yield was almost the same as that in the conventional culture and 100 seeds weight was heavier. Relative photosynthetically active radiation under the soybean canopy in narrow row culture was 10％ or less, and the weed growth was suppressed from about 50 days after planting. This indicated that soybeans covered the row space at an early stage. By spraying herbicide one month after planting, the weed emergence could be controlled below the level in conventional culture with inter-tillage and ridging. Thus, it is considered that sufficient weed control can be achieved in ridge-making narrow row culture (of “Tachinagaha”) by spraying herbicide once from 10 to 30 days after planting when the weeds begin to emerge. As a result, labor for weeding can be saved compared with the conventional culture. This cultivation may promote stable production of soybean with high quality especially in large-scale soybean fields.

【 授权许可】

Unknown