利用合成土壤添加物防治百合白絹病之研究
Other Title
Studies on Control of Lily Southern Blight by Application of Soil Amendments
Journal
中華農業研究
Journal Volume
41
Journal Issue
3
Pages
280-294
Date Issued
1992-09-08
Date
1992-09-08
Author(s)
Abstract
百合白絹病菌(Sclerotium rolfsii Sacc.)為兼性寄生的土媒病原真菌，具有強腐生能力，藥劑防治效果不佳。以土壤平板測試十六種化合物對本菌菌核發芽之影響，發現土壤添加1%(w/w)的各種化合物中，以含氮化合物最具抑制效果，其中含氮量500ppm之尿素和碳酸氫銨可完全抑制菌核的發芽和腐生活力。Sixteen inorganic salts were, respectivity, amended inot soil to study their inhibition to sclerotial germination of Sclerotium rolfsii. It showed that the percentage of sclerotial germination was decreased after nitrogenous compounds being amended to soil at 1% (w/w) rate. Among those nitrogenous compounds, urea and ammonium bicarbonate at 500 ppm of the nitrogen level could not only completely inhibit the germination, but also suppress the saprophytic activity in soil. Meanwhile, urea at the same rate could effectively decrease the disease severity.
Subjects
百合
白絹病
尿素
有機質
土壤添加物
Lily
Sclerotium rolfsii Sacc.
Soil amendment
Urea
Organic matter
Publisher
農業試驗所
Type
journal article
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