Necessity of protection of willow against weeds

Abstract

The purpose. To determine features of processes of contamination of young plantings of willow and factors of negative influence of weeds on growth and development of seedlings. Methods. Small-plot field researches. Account and observation according to requirements of the Technique of carrying out tests and application of pesticides [10]. Results. The greatest mass of weeds during vegetative periods was fixed on 10.08 and made in average 3548,2 g/m2. The greatest share of mass of weeds made: white goosefoot –418,1 g/m2 (11,8%), black nightshade – 404,8 (11,4), grey bristlegrass – 378,3 (10,7), chicken millet – 327,4 (9,2), field mustard – 315,2 g/m2 (8,9%), etc. Conclusions. Application of consecutive sprayings with selective to culture herbicides or use of the combined systems which include methods of power shielding, actions of soil preparations and mechanical monitoring of sprouts of weeds during 50 — 60 days of vegetation is necessary for effective protection of plantings of willow.