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Type of publication: conference paper
Field of Science: Agronomija / Agronomy (A001)
Author(s): Kriaučiūnienė, Zita;Marcinkevičienė, Aušra;Velička, Rimantas;Mockevičienė, Rita;Kosteckas, Robertas;Butkevičienė, Lina Marija;Čekanauskas, Sigitas;Kosteckienė, Silvija
Title: Application of bio-preparations in organic spring rapeseed crop and the humus content effect on soil properties
Is part of: Agroecosystem Sustainability: Links between Carbon Sequestration in Soils, Food Security and Climate Change : International scientific conference : AgroEco2018 : Programme and abstracts. Akademija, 2018
Extent: p. 41-41
Date: 2018
Keywords: bio-preparations;humus;biological activity;soil enzymes;CO2 emission;earthworm
ISBN: 9786094491375
Abstract: Soil properties have been shown to be closely related to agricultural activities, various soil factors and climate. Scientists and farmers are looking for methods to sustain and increase soil fertility in order to achieve high and good quality agricultural production. The application of sustainable technologies and bio-preparations in agriculture could increase biological activity of the soil, which has been proved to be a powerful indicator of soil quality. Field experiments were carried out in 2014-2016, at the Experimental Station of Aleksandras Stulginskis University (54°53' N, 23°50' E), Kaunas District, Lithuania. The aim of the research was to estimate the effects of bio-preparations and the humus content on the soil biological activity by using non-chemical weed control methods (thermal, mechanical and self-regulation) in the organic spring rapeseed crop (Brassica napus L. spp. oleifera annua Metzg.) cultivated in soil with regular and thickened humus layers. Experiments showed that the activity of soil enzymes urease and saccharase, number and mass of earthworms, and CO2 emission from the soil depended on the meteorological conditions. In the soil of both humus layer types, the highest average number and mass of earthworms as well as the strongest activity of saccharase and urease were identified in the plots of self-regulation, compared with thermal and mechanical weed control. The positive effect of the bio-preparations on the abundance of earthworms and the activity of soil enzymes was established in the droughty year of 2015. The application of mechanical and thermal weed control methods without bio-preparations decreased CO2 emission from the soil, while their combination with bio-preparations increased it. [...]
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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