9027: Nebenwirkungen auf den Fruchtansatz der Behandlungen von Schwefelkalk in die Blüte mit der Beregnung bzw. mit dem Sprüher [Thinning effect of lime sulphur applied during blossom with the overhead irrigation system in comparison to the sprayer]

Kelderer, Markus; Lardschneider, Ewald and Casera, Claudio (2006) Nebenwirkungen auf den Fruchtansatz der Behandlungen von Schwefelkalk in die Blüte mit der Beregnung bzw. mit dem Sprüher [Thinning effect of lime sulphur applied during blossom with the overhead irrigation system in comparison to the sprayer]. Poster presented at ecofruit - 12th International Conference on Cultivation Technique and Phytopathological Problems in Organic Fruit-Growing, Weinsberg/Germany, 31.1.-2.2.2006; Published in Boos, Markus, Eds. ecofruit - 12th International Conference on Cultivation Technique and Phytopathological Problems in Organic Fruit-Growing: Proceedings to the Conference from 31st January to 2nd February 2006 at Weinsberg/Germany, page pp. 234-238.

Summary

A large number of organic fruit-growers in South Tyrol regulate scab with scab stop treatments using the overhead irrigation system. They use mainly lime sulphur, because it is particularly suitable for scab stop treatments. Treatments during blossom can also thin the flowers. The aim of the field-trials was to understand if lime sulphur applied with the overhead irrigation system gives the same thinning effect like the normal application with the sprayer. The results from the 2 years of trials show that there is no significant difference between the two application systems. Other factors like the influence of the different climatic parameters in each year play a more important role.

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