Badania wpływu herbicydów doglebowych na wzrost okulantów wiśni odmiany Łutówka [Influence of herbicides on growth of one-year-old trees of sour cherry cv. Łutówka]

Abstract

The studies performed in 1997–1999 have shown that herbicides such as Azotop 50 (simazine, 6-chloro-N, N-diethyl-1,3,5-triazine-2,4-diamine) in the dose lkg ha^-1 or Afalon 50 WP (linuron, N'-(3,4-dichlorophenyl)N-methoxy-N-methylurea) in dose 1,5 kg ha^-1 or its mixture with Dual 960 EC (metolachlor, 2-chloro-N(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl) acetamide) in dose 1,5 l ha^-1 applied in early spring significantly decreased number of weeds in nursery of sourcherry trees cv. Lutówka budded on Prunus mahaleb L rootstocks as compared with mechanical weed control. Both, Azotop 50 and Azotop 50 in mixture with Dual 960 EC eliminated weeds for the longer period than Afalon 50 WP and Afalon 50 WP with Dual 960 EC. Herbicides did not affect tree trunk diameter (at 30 cm from the ground level), the number and total length of shoots of one-year-old sour cherry trees in comparison with mechanical control of weeds.