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Type of publication: conference paper
Type of publication (PDB): Tezės kituose recenzuojamuose leidiniuose / Theses in other peer-reviewed publications (T1e)
Field of Science: Agronomija / Agronomy (A001)
Author(s): Butkevičienė, Lina;Bogužas, Vaclovas;Steponavičienė, Vaida;Kerdokas, Tadas
Title: The influence of biological preparations and their mixtures on soil properties in winter wheat
Is part of: AgroEco 2020 : 3rd International scientific virtual conference : Agroecosystem sustainability : links between carbon sequestration in soils, food security and climate change, Vytautas Magnus University Agriculture Academy, Lithuania, 2–3 December, 2020 : programme and abstracts. [Akademija] : Vytautas Magnus University.Agriculture Academy, 2020
Extent: p. 64
Date: 2020
Keywords: Biological preparations;Winter wheat;No till;Disk harrowing
ISBN: 9786094674662
Abstract: Intensive tillage and the use of chemicals unbalance natural biological processes in the soil. There is a lack of knowledge about the patterns of decomposition of organic matter and the possibilities of reducing soil degradation. A two – factor field experiment in 2017/2019 was carried out at the Vytautas Magnus University Experimental Station on the winter wheat 'Sailor' crop test fields. Biological preparations and their mixtures was applied using different tillage technologies. The aim: influence of biological products on organic carbon content and CO2 emissions from soil by comparing the performance of different formulations using zero tillage and disk harrow technologies. Soil organic carbon was not significantly influenced by the tillage technology, but the use of biological preparations and their mixtures increased the organic carbon content of the soil better than the use of nitrogen to stimulate straw mineralization. Organic carbon content was significantly better compared to compensatory nitrogen in the use of a mixture of biological preparations R+P (15.6%), R+A (13.6%), P+A (8.4%) and a mixture of all three preparations (25.0%). In the early spring vegetation, in no-till crop fields, CO2 emissions ranged from 2.82 to 3.77 CO2 efflux. Disk harrowing, after application of preparations, had a slight 3.4% effect on bigger CO2 emissions. A bigger CO2 emission was determined by spraying crops with a combination of R+P+A. CO2 emission release became more active in the middle of vegetation, more intensive processes were noticed in no-till background when P and A preparations were used alone. Organic carbon in the soil increased more with the use of biological agents than with the release of compensatory nitrogen. At the start of vegetation, CO2 emissions were increased by the use of the mixtures of biological preparations. In the middle of the vegetation, the release of CO2 emissions was activated by using [...]
Affiliation(s): Agronomijos fakultetas
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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