Professional paper

Become the impact foliar fertilizers on the efficiency of fungicides protection of potato early blight (Alternaria solani)

Milorad Šubić ; Savjetodavna služba, Podružnica Međimurske županije, Čakovec

Abstract

Based on the obtained results it can be concluded that contact active fungicide substances from the group of dithiocarbamates (propineb, methiram) can significantly improve the efficiency of potato early blight (Alternaria solani) by adding biofertilizers and/or certain foliar mineral nutrients. This proved particularly effective in seasons with extreme high summer air temperatures. With the application should begin preventive, after we record the conditions for the initial development of the disease and before any "heat shock" for potato crops. When we use for potato early blight very effective group of strobilurin fungicides (azoxystrobin), adding biofertilizers not significantly increased efficiency. The total number of planned treatment most affected by the length of the growing season potato varieties, and the cultivation of sensitive varieties whose development until mid- August should be done 4-5 oriented applications with an average spacing of 15 days. It is better planned dose biofertilizers applied repeatedly in small quantities.

Keywords

potato; organic biostimulator; early blight; Alternaria solani

Hrčak ID:

169186

URI

https://hrcak.srce.hr/169186

Publication date:

1.4.2014.

Article data in other languages: croatian

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