沖積土壌におけるアスパラガスの連作障害に対するアレロパシーの関与(栽培管理・作型)

Translated title of the contribution: Participation of Allelopathy in Injury due to Continuous Cropping of Asparagus (Asparagus officinalis L.) in Alluvial Soil(Crop Production & Cropping Type)

元木 悟, 西原 英治, 北澤 裕明, 平舘 俊太郎, 篠原 温

Research output: Contribution to journalArticle

Abstract

Replanting of asparagus (Asparagus officinalis L.) often results in lower yields and extensive damage of young plants. One of the causes is considered allelopathy. In this study, we examined the participation of allelopathy on injury by continuous cropping of asparagus in alluvial soil. The presence of strong allelochemical substances, which have the growth-inhibitory activity, was detected by bioassay of rhizosphere soil around asparagus. This growth-inhibitory activity was not attributed to salt accumulation, pH fluctuation, or inorganic nutrient imbalance in the rhizosphere soil. Asparagus foliage incorporated into the soil did not demonstrate a close relation to the growth inhibition or decreased yield of asparagus. However, strong growth-inhibitory activity was demonstrated in the storage roots of asparagus. It is assumed that an allelochemical is exuded from the storage roots and is one of the causes of unsuccessful continuous cropping of asparagus.
Translated title of the contributionParticipation of Allelopathy in Injury due to Continuous Cropping of Asparagus (Asparagus officinalis L.) in Alluvial Soil(Crop Production & Cropping Type)
Original languageJapanese
Pages (from-to)431-436
Number of pages6
Journal園芸学研究
Volume5
Issue number4
Publication statusPublished - Dec 15 2006

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