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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): Mikučionienė, Romutė;Bogužas, Vaclovas;Liaudanskienė, Inga;Sinkevičienė, Aušra;Valadkaitė, Rūta
Title: Soil Organic Matter under Different Soil 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. 370
Date: 2015
ISBN: 9788393409655
Abstract: Our investigation was aimed to assess impact of different intensity tillage systems, straw and green manure combinations on soil organic matter quantity and quality. The data based on long-term field experiment established since 1999 in the Experimental Station of the Aleksandras Stulginskis University, Kaunas district at 54°52'50 N latitude and 23°49'41 E longitude. The soil of the experiment site is Endohypogleyi-Eutnc Planosol. The obtained results after 14 years from the beginning of field experiment indicated a positive effect on soil organic carbon (SOC) in plots where straw were incorporation or minimized tillage. Significantly highest amount of SOC (2.39 %) was obtained in topsoil layer (0-10 cm depth) after straw chopped and spread at harvesting. In comparison, the lowest content of SOC (2.13 %) was found in soil where straw was removed. The mobile humus susbstances depends on tillage practise, straw and green manure management and were different among treatment. Analysing the straw effect on the content of mobile humus susbstances in toplayer (0-20 cm) the higher amount (7.52 C g kg" i mobile humus substances was found on treatment with straw. Tillage systems had no significant effect on mobile humic acids but tended to increase SOM quality. Mobile humic acids in treatments with conventional ploughing, shallow ploughing, shallow loosening without straw amounted 35.5-37.7 % or with straw - 42.3- 43.6 % from total amount of labile humus substances. The different tillage systems had positive impact on soil organic carbon poc.; in 0-10 cm soil layer. The shallow loosening (32.7 Mg ha"1), green manure incorporation (35.9 Mg ha"1) and no-tillage (35.9 Mg ha"1) significantly increased poo J to compare with conventional deep ploughing (25.5 Mg ha"1). Shallow ploughing and shallow loosening have no effect
Affiliation(s): Lietuvos agrarinių ir miškų mokslų centro filialas Žemdirbystės institutas
Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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