Open AccessПОКАЗАТЕЛЬ ВОССТАНОВЛЕНИЯ БИОТИЧЕСКОГО ПОТЕНЦИАЛА АГРОЭКОСИСТЕМ ПРИ УМЕНЬШЕНИИ ПЕСТИЦИДНЫХ НАГРУЗОК
Author(s) -
A. M. Sumarokov,
О. В. Жуков
Publication year - 2013
Publication title -
bìologìčnij vìsnik melìtopolʹsʹkogo deržavnogo pedagogìčnogo universitetu ìmenì bogdana hmelʹnicʹkogo
Language(s) - English
Resource type - Journals
eISSN - 2226-9010
pISSN - 2225-5486
DOI - 10.15421/20133_43
Subject(s) - sativum , agriculture , steppe , biology , population , ecosystem , agronomy , pesticide , hordeum vulgare , european union , geography , ecology , poaceae , demography , sociology , business , economic policy
The research paper estimated the reaction of Herpetobiont adult beetles (Coleoptera) on the reducing of the pesticide load in the agro-ecosystems of the steppe zone of Ukraine. We choose the crops of Triticum vulgare Host., Hordeum sativum L., Pisum sativum L., Zea mays L., Helianthus annus L. and Medicago sativa L., being part of field rotation as test cultures. The main long-term constant observations were conducted on Sinelnikovо Selection and Experimental Station of the Institute of Grain Farming, National Academy of Agrarian Sciences (Ukraine), located in the Dnipropetrovsk region. Based on the comparative characteristics of two study periods, namely: 1st - the period of intensive use of pesticides (1983-1989) and 2nd - period of substantial (by 10-12 times) reduce of pesticide press in Ukraine (1999-2005) we succeed to show that during second period in the fields of agrosystems cultures there was significant increase in number of species of beetles, particularly zoophagous, and their abundance. The studies proved the ability of natural populations of predatory beetles to effectively control the population of harmful insect fauna in agricultural ecosystems at economically safe level without the use of pesticides. Keywords: agricultural ecosystems, integrated agricultural ecosystem, reducing of pesticide load, reaction of beetles, the steppe zone of Ukraine.