Action of Tank-Mix Herbicide Application and Foliar Fertilizer in Poppy

The main goal of this study was to compare a degree of damage of poppy after herbicide application with or without foliar fertilizer (in tank-mix). Registered herbicides Callisto 480 SC + Atplus 463 and Lentipur 500 FW were used in field trial. Some variants include combinations of these herbicides with fertilizer MKH 18. The damage of photosynthesis apparatus was measured using device PS1 meter. The results showed, that tank-mix combination of herbicides and fertilizer increased phytotoxic effect on poppy plants. The highest values of PS1 meter were obtained 5-8 after treatment. Application of foliar fertilizer in mixture with herbicides influenced yield of poppy seeds. Tank-mix application of Callisto 480 SC + Atplus 463 and fertilizer MKH 18 reduced yield to 0.57 t. ha(-1) in comparison with solo application of Callisto 480 SC + Atplus 463 (0.81 t. ha(-1)). Different effect had herbicide Lentipur 500 FW which in combination with MKH 18 fertilizer increased yield (1.25 t. ha(-1)) in comparison with solo application (1.03 t. ha(-1)). These results showed that adding of liquid fertilizer MKH 18 can have positive or negative effect on yield depending on herbicide.