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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): Grigaliūnaitė, Sandra
Contributor(s): Sinkevičienė, Aušra
Title: Žemės dirbimo įtaka dirvos bendrajam poringumui kukurūzų pasėlyje
Other Title: The influence of soil tillage on total porosity in maze crop soil
Is part of: Jaunasis mokslininkas 2016 [elektroninis išteklius] : studentų mokslinės konferencijos pranešimų rinkinys, 2016 m. balandžio 14 d. / Aleksandro Stulginskio universitetas. Agronomijos fakultetas. Akademija, 2016
Extent: p. 19-22
Date: 2016
Abstract: Soil porosity – one of the main indicators characterizing soil. Often not hard part of soil, but the soil porosity due to it’s suitability to grow agricultural plants. Soil porosity – soil in the volume of voids (%), per unit volume of soil. Soil voids may be filled by water or air. Solid fraction of soil distribution determine it’sporosity (Danielson, Sutherland, 1986). Analysis target: to determine the influence of soil tillage reduced of the soil general porosity. The soil has formed in the region of bottom moraine or bottom glacial formations, covered by glacial lacustrine sediments.The soil of the experimental field is Endohypogleyic-Eutric Planosol–PLe-gln-w (Buivydaitė ir kt., 2001). The field experiment was set up in 1988 in the then Lithuanian Academy of Agriculture’s Experimental Station. Prof. dr. A. Stancevičius was the initiator and leader of the experiment. At that time the experiment was conducted in the six-course crop rotation. Since 2001, the experiment has been modified by assoc. prof. dr. V. Bogužas by introducing direct drilling treatment and four-course crop rotation. The experiment is being continued. Primary soil tillage methods investigated: 1. Conventional ploughing at 23–25 cm depth (CP) (control treatment); 2. Shallow ploughing at 12–15 cm depth (SP); 3. Deep cultivation at 23–25 cm depth (DC); 4. Shallow cultivation at 12–15 cm depth (SC); 5. Not tilled soil (direct sowing) (NT). Crop rotation in the experiment: 1) spring rape ; 2) winter wheat ; 3) maize; 4) spring barley. The experiment involved 4 replications. Each crop was cultivated in 20 plots. The initial size of plots was 126 m 2 (14 x 9 m), and the size of record plots was 70 m 2 (10 x 7 m). The plots of the experimental treatments were laid out in a randomised order
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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