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Some Soil Factors Influencing the Density of Cereal Root Eelworm (Heterodera Avenae Woll.) Populations and Their Damage To the Oat Crop

Some Soil Factors Influencing the Density of Cereal Root Eelworm (Heterodera Avenae Woll.)... SOME SOIL FACTORS INFLUENCING THE DENSITY OF CEREAL ROOT EELWORM (HETERODERA AVENAE WOLL.) POPULATIONS AND THEIR DAMAGE TO THE OAT CROP BY J. H. FIDLER AND W. J. BEVAN National Agricultural Advisory Service, Lawnswood, Leeds, England In a survey of 32 oat fields infested with Heterodera avenae Woll. the soil factors affecting the success of the crop at various levels of eelworm density were examined. Of these, water holding capacity was found to be the most important, and after that the phosphorus status. Potassium and organic matter had little effect until they were very low, and pH had no noticeable affect. The proportion of the total soil volume with pore spaces between 30 and 100 µ in diameter was cal- culated for each soil and named the Available Pore Space (APS). Low figures for this appeared to have a limiting effect on the build up of cysts when many cereal crops were grown. In surveys of the incidence of Cereal root Eelworm (Heterodera ave/Me Woll. ) a general relationship between pest density and crop damage has been found, but the importance of other modifying soil factors has also been suggested. Southey (1956) reporting a national survey, said that http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Some Soil Factors Influencing the Density of Cereal Root Eelworm (Heterodera Avenae Woll.) Populations and Their Damage To the Oat Crop

Fidler, J.H.; Bevan, W.J.
Nematologica , Volume 9 (3): 9 – Jan 1, 1963
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529263X00962
Publisher site
See Article on Publisher Site

Abstract

SOME SOIL FACTORS INFLUENCING THE DENSITY OF CEREAL ROOT EELWORM (HETERODERA AVENAE WOLL.) POPULATIONS AND THEIR DAMAGE TO THE OAT CROP BY J. H. FIDLER AND W. J. BEVAN National Agricultural Advisory Service, Lawnswood, Leeds, England In a survey of 32 oat fields infested with Heterodera avenae Woll. the soil factors affecting the success of the crop at various levels of eelworm density were examined. Of these, water holding capacity was found to be the most important, and after that the phosphorus status. Potassium and organic matter had little effect until they were very low, and pH had no noticeable affect. The proportion of the total soil volume with pore spaces between 30 and 100 µ in diameter was cal- culated for each soil and named the Available Pore Space (APS). Low figures for this appeared to have a limiting effect on the build up of cysts when many cereal crops were grown. In surveys of the incidence of Cereal root Eelworm (Heterodera ave/Me Woll. ) a general relationship between pest density and crop damage has been found, but the importance of other modifying soil factors has also been suggested. Southey (1956) reporting a national survey, said that

Journal

Nematologica – Brill

Published: Jan 1, 1963

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