Agriculture and forestry

Peleh Lyudmila Victorivna – Candidate of Agricultural Sciences, Senior instructor of the department of agriculture, soil science and agrochemistry of the Vinnytsia National Agrarian University (21008, Vinnytsia, Solnychna St., 5 e-mail: gogoluda69@gmail.com

In the article are reflected results of study of character of forming of of weediness level sowing of a spring barley depending on the system of basic till of soil, taking into account the modern tendencies of minimalization of the systems of agriculture. It is well-proven that the amount of weeds depends on a method and depth of till. It is set that a level of impurit of control variant is very high is over 100 plants/m2, that underlines actuality of search for the terms of economy of optimal variant of cleanness of sowing of spring barley. Certainly, that character of forming of quantity of weeds has a certain shake character with their maximal quantity on beginning of vegetation of a spring barley and their least on the period of ripening of weeds. It contingently both reasons of direct influence on a height and development of the last at influence different systems of till and reasons of biological order, related to the biological cycle of development of certain biological groups of weeds.

It is well-proven that it is possible effectively to influence the change of method of basic till of soil and change of his depth and on the specific structure of impurit of weediness level crops of a spring barley, in particular to diminish the quantity of their long-term kinds and separate most harmful spring groups of weeds. It is marked that for the terms of zone of researches the greatest level of weediness cleanness of sowing of a spring barley is marked in the variant of application of the classic ploughing on a 20-22 cm for that the general level of weediness of sowing below, than in comparison with the variant of untilled control on 46,0-68,4 %.

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