Paper Information

Journal:   IRANIAN JOURNAL OF PLANT PATHOLOGY   December 2001 , Volume 37 , Number 3-4; Page(s) 209 To 220.
 
Paper: 

EFFECT OF THREE SOIL TILLAGE INTENSITIES ON THE ACTIVITY OF MYCORRHIZAL FUNGI IN TWO SOILS IN SWITZERLAND

 
 
Author(s):  MEHR AVARAN H.*
 
* Department of Plant Protection, Callege of Agriculture, Urmia University, Orumiyeh Iran
 
Abstract: 

This investigation was carried out in Switzerland, in two locations, Hausweid with sandy loam soil and Langwiese with clay loam soil. At these two locations an experiment has been in progress since 1987 to study the effects of tillage practices on agricultural crops. The crop rotation has been winter wheat, maize, winter wheat and rape seed. During 1996 when corn was planted, effects of 3 tillage treatments (plow, chizel and no-till) on the activities of AM mycorrhizae at the two locations and with four replications at each location were studied. Root and leaf samples were taken at different dates and degree of root colonization by mycorrhizal fungi and leaf concentration of elements were measured. Maize roots in no-till fields were colonized by AM fungi much earlier in the season and much more during the whole season. Maize leaves in the no-till plots contained higher concentrations of P, Cu and Zn and less Mn as compared with plants in the plowed fields.

 
Keyword(s): ARBUSCULAR MYCORRHIZAE, TILLAGE, MAIZE, HIGH PHOSPHATE SOILS, ABSORPTION OF P, CU AND ZN
 
References: 
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