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Type of publication: Straipsnis nerecenzuojamoje Lietuvos konferencijos medžiagoje / Article in non-peer-reviewed Lithuanian conference proceedings (P2c)
Field of Science: Agronomija / Agronomy (A001)
Author(s): Giriūnaitė, Lina
Contributor(s): Jodaugienė, Darija
Title: Skirtingų agrotechninių priemonių poveikis žieminių kviečių agrocenozei
Other Title: Impact of different agrotechnical means on the agrocenosis of winter wheat
Is part of: Jaunasis mokslininkas 2017: studentų mokslinės konferencijos pranešimų rinkinys / Aleksandro Stulginskio universitetas. Agronomijos fakultetas. Akademija,, 2017
Extent: p. 19-22
Date: 2017
Abstract: The research on the impact of different agrotechnical means on the agrocenosis of winter wheat was carried out during 2015-2016 at the farm of the Farmer Kristina KAZLAUSKAITE located in Azuvadziai Village, Regional Municipality of Skapiskis, Kupiskis District, Lithuania. During the experiment, the Calcari Epihypogleyic Luvisol - LVg-p-w-cc, field soil was used, i.e. sandy loam on clay loam of medium weight. The 'Legenda' winter species of common wheat (Triticum aestivum L.) was chosen for the experiment. Variants of field experiment: I. Factor A - Organic+ pellets of bird droppings: 1. Not fertilized; 2. Fertilized (1 t ha"1); II. Factor B - fertilizing time: 1. Autumn; 2. Spring. III. Factor C - crop harrowing: 1. Not harrowed; 2. Harrowed once; 3. Harrowed twice. During the research, the crop thickness (units in m"1) of the winter wheat was evaluated: in spring before the 1s t harrowing (in the tillering stage), before the 2n d harrowing, after the 2n d harrowing and before harvesting (in the milky ripeness stage). The number of short-lived and perennial weeds (units in m"1) was evaluated before the harvesting of winter wheat. The yield of the winter wheat was calculated by the harvest of standard moisture and 100 per cent purity t ha"1. The density of the crop of winter wheat increased by 4.1-12.1 per cent after the fertilization with Organic+ organic fertilizers. Prior to harrowing, the density of the crop was higher in the fields fertilized in autumn; however, after harrowing, denser crop was established in the fields fertilized in spring. The harrowing of the crops did not essentially change the density of winter wheat. Fertilization with Organic+ organic fertilizers had no essential influence on the quantity of short-lived and perennial weeds before the harvesting of winter wheat; however, fertilization in autumn doubled the number of perennial weeds
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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