期刊
JOURNAL OF PHYTOPATHOLOGY-PHYTOPATHOLOGISCHE ZEITSCHRIFT
卷 149, 期 11-12, 页码 679-683出版社
BLACKWELL VERLAG GMBH
DOI: 10.1046/j.1439-0434.2001.00693.x
关键词
potato scab; Streptomyces spp.; S. scabies; Tasmanian ferrosol soils; soil pH; exchangable cations
Scab conduciveness of 35 Tasmanian ferrosol soils, used for potato cropping, was compared in a glasshouse trial. Linear regressions showed no association between scab incidence and any of 12 individual soil chemical properties. However, using contingency tables, threshold levels were found for pH and exchangeable cations below which scab disease was less likely. The observed pH threshold in the range 5.0-5.2 was in accordance with similar findings from elsewhere and indicates the robustness of this threshold over a range of soil types and pathogen species. Scab was not observed on potatoes grown in soil with combined exchangeable Ca. Mg and K at 12 cmol(c)/kg or less. A strong correlation between soil pH and these exchangeable cations, particularly calcium. was found.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据