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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): Mikučionienė, Romutė;Feiza, Virginijus;Feizienė, Dalia;Sinkevičienė, Aušra;Bogužas, Vaclovas;Putramentaitė, Agnė;Steponavičienė, Vaida
Title: Soil Water Capacity, Pore-size Distribution and CO2 E-fflux in Cambisol and Planosol after Long-term No-till Management
Is part of: MATERIAŁY 29. Kongresu Polskiego Towarzystwa Gleboznawczego: Zasoby glebowe a zrównoważony rozwój Wrocław, 31.08-03.09.2015 = PROCEEDINGS of the 29th Congress of the Polish Society of Soil Science : Soil Resources and Sustainable Development Wrocław, 31.08-03.09.2015 Wrocław, 2015
Extent: p. 371
Date: 2015
ISBN: 9788393409655
Abstract: Little is known about effects of modern soil management practices, especially no-till, on soil physical state, soil pore size distribution and soil water capacity after long-time of successive application on different soil types. The investigations were performed in 2014 on the basis of long-term (since 1999) field experiments on sandy loam textured soil at the Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry (Cambisol), and on silt loam at the Experimental Station of the Aleksandras Stulginskis University {Planosol). The goals of this investigations were a) to compare soil water capacity, soil pore-size distribution and CO2 e-fflux in Cambisol and Planosol, b) to evaluate the effect of long-term no-tillage application in combination with and without residues management on hydro-physical properties of soils with different genesis and c) to assess the suitability of such management practice for practical use. Regarding different soils genesis, the lower bulk density and higher total porosity were registered within 0-20 cm depth in Planosol than in Cambisol, while Cambisol was better aerated than Planosol due to a greater space of macropores. A risk of waterlogging condition may occur in Planosol due to a greater share of meso-and microporosity within 5-35 cm soil depth, compared to Cambisol. No-tillage application with crop residue returning was more suitable on Cambisol than on Planosol. This soil management system increased volumetric water content in the soil and CO2 e-fflux. No-tillage with residue removal on Cambisol conditioned soil CO2 e-fflux increase when volumetric-soil water content ranged from 0.159 to 0.196 m3 m"3. When soil water content increased up to 0.220-0.250 m3 m"3, the e-fflux peak was reached at which the further C02 e-fflux sloped down. On Planosol, the soil C02 e-fflux peak ranges were lower, i.e. approximately 0.170-0.200 m3 m"3
Affiliation(s): Lietuvos agrarinių ir miškų mokslų centro Žemdirbystės institutas
Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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