Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/88933
Type of publication: Straipsnis konferencijos medžiagoje kitose duomenų bazėse / Article in conference proceedings in other databases (P1c)
Field of Science: Agronomija / Agronomy (A001)
Author(s): Jankauskienė, Zofija;Gruzdevienė, Elvyra;Burbulis, Natalija;Maumevičius, Ernestas;Layko, Iryna M
Title: Investigation of hemp (Cannabis sativa L.) crop weediness
Is part of: Environment. Technology. Resources : Proceedings of the 10th International Scientific and Practical Conference. Rezekne : Rezekne Higher Education Institution, Vol. 2 (2015)
Extent: p. 120-123
Date: 2015
Keywords: Cannabis sativa L;Crop density;Seed rate;Variety;Weediness
Abstract: The investigation of hemp crop weediness was carried out at the Upytė Experimental Station of the Lithuanian Research Centre for Agriculture and Forestry in 2014. Bi-factorial trial was carried out: Factor A – variety (A1 – USO 31; A2 – Bialobrzeskie); Factor B – sowing rate (B1 – 45 kg ha-1; B2 – 70 kg ha-1). Data showed that seed rate had a significant influence on crop density at full hemp emergence as well as at harvesting time. Rainy vegetation period was favourable not only for hemp growing, but for weeds as well. Crop density (resulted by seed rate) had a significant influence on crop weediness – significantly more weeds (in average 166 plants m-2) were found in the plots with seed rate of 45 kg ha-1, consequently at lower crop density, and under 140 weed plants m-2 were found in the plots with seed rate of 70 kg ha-1, consequently at higher crop density. Hemp crop weediness at harvesting time was much lower than that at the beginning of vegetation; reduction of weediness over the vegetation period was close to 87-90 percent
Internet: http://journals.ru.lv/index.php/ETR/article/view/272/667
Affiliation(s): Lietuvos agrarinių ir miškų mokslų centro filialas Upytės bandymų stotis
Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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