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Type of publication: Tezės kituose recenzuojamuose leidiniuose / Theses in other peer-reviewed publications (T1e)
Field of Science: Agronomija / Agronomy (A001)
Author(s): Steponavičienė, Vaida;Bogužas, Vaclovas;Sinkevičienė, Aušra;Skinulienė, Lina;Sinkevičius, Alfredas
Title: Long-term impact of reduced intensity tillage systems, straw and green manure combinations on soil physical properties
Is part of: Soil – Source of Life : 30th Congress of the Soil Science Society of Poland, Lublin, 2-7 September 2019 : Book of Abstracts. Lublin, 2019
Extent: p. 270-270
Date: 2019
Keywords: Tillage intensity;Catch crop;Soil physical properties
ISBN: 9788375623109
Abstract: Since 1999, a long-term field experiment has been done at the Experimental Station of Magnus University Agriculture Academy (former Aleksandras Stulginskis University) at 5- 52* N latitude and 23°49'41 E longitude. The soil of the experiment site is Epieutric Endocalcar:. ! >I dogleyic Planosol (Endoclayic, Aric, Drainic, Humic, Episiltic) according to WRB (2014), text Jrefl 0-20 cm depth is silty medium loam (33.7% sand, 50.3% silt, 16.0% clay), at 20-40 cm depth Iky light loam (35.4% sand, 51.1% silt, 13.5% clay). The objective of our investigations was to asse>- fe long-term impact of reduced intensity tillage systems, straw and green manure combinations or. ^ot' physical properties. A short crop rotation was introduced: winter wheat, spring barley, spring rape. The results were -v tained in 2013-2015. According to two factor field experiment, the straw (factor A) was removed R) from one part of the experimental field and on the other part of the field all straw yield was chopped and spread (S) at harvesting. As a subplot 6 different tillage systems (factor B). The trials were replicated four times. The treatments were arranged using a split-plot design. The total size of each plot was 102 (6 x 17)m2 and net size was 30.0 (2.0 x 15) m2. The soil samples have been analysed in the Agro biological laboratory of Vytautas Magnus University Agriculture Academy. Long-term application of reduced tillage results in a significant increase in soil penetration and soil shear resistance. The lesser the tillage depth, the higher the soil penetration and soil shear resistance. The effect of plant residue spreading is lower. Long-term tillage of different intensities and plan: residue spreading as well as catch crop cultivation for green manure did not have significant effect on soil structure. [...]
Affiliation(s): Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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