14. Influence of short crop rotations and fertilizer system on weed infestation of crops of sugar beet

https://doi.org/10.31073/agrovisnyk201606-14
Torlina O. M.
Pages: 68-71.

Full article: 
Abstract
The purpose. To determine influence of links of short crop rotations and fertilizer system on formation of weed infestation of crops of sugar beet. Methods. Long stationary experiment. Account of weeds in sowings of sugar beet was carried out in frames (1,25 m x 0,20 m = 0,25 m2) which were superimposed on diagonal of a plot in 4 places. Species composition of weeds was determined during mass shoots of plants of sugar beet by means of V.P. Stupakova manual. Results. Influence of links of short crop rotations and fertilizer system in sowings of sugar beet upon quantitative change of species composition of weeds is studied. At use in crop rotation with short rotation of a field with bare fallow purification of sowings of sugar beet is observed. Conclusions. For a zone of insufficient humidification in Forest-steppe the most efficient short crop rotation in control of weed infestation of crops of sugar beet is grain-tilling one: 1) bare fallow, 2) winter wheat, 3) sugar beet, 4) barley. The factor of bare fallow considerably reduced aggregate number of weeds in sowings of beet sugar.


Key words: weeds, sugar beet, fertilizer system, link of crop rotation, typical weakly alkaline black earth.



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