Влияние удобрений на развитие зоопланктона в выростных карповых прудах южного Урала

Abstract

Внесение в выростные пруды азотно-фосфорных удобрений (азота 3 мг/л, фосфора 0,2 мг/л) на видовом составе зоопланктона почти не отражается. Существенные изменения отмечены в количественных показателях: в удобряемых прудах они значительно выше.

By means of Coenological analysis, development of only one, typical for ponds, Zooplanktic complex (with Bosmina) is established. In the trial this complex was presented by four varieties, and those according to the entire environment factors complex were characterized by higher number of dominating species and highest significance indice value. The most effective doses of mineral fertilizers for the Southern part of the Chelyabinsk region are 3 mg/l of nitrogen and 0.2 mg/l phosphorus. This concentration contributed to the best zooplankton development.