ISSN:
1432-0789
Keywords:
Key words Hordeum vulgare
;
Agricultural ecosystem
;
Acidic soil
;
Soil infectivity
;
Endomycorrhizae
;
Reduced tillage
;
Rhizosphere
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Geosciences
,
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract The dynamics of mycorrhizae under disturbance created by crop production is not well understood. A 3-year experiment was undertaken on a nutrient-poor and acidic land that had last been cultivated in the early 1970s. We observed the effects of cropping spring barley (Hordeum vulgare L.) under four P-fertilizer levels and four levels of lime, in a minimum (rototillage), a reduced (chisel), or a conventional tillage system, on the mycorrhizal receptiveness of the host (maximum level of mycorrhizal colonization, as measured at harvest) and soil infectivity most probable number method. The host receptiveness decreased with time, while crop yields and soil infectivity increased simultaneously with time. Liming increased mycorrhizal colonization of barley roots and soil infectivity. P additions decreased root colonization but did not significantly affect the most probable number values. Slightly higher soil infectivity estimates were found under reduced tillage.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00335928
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