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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: Aplinkos inžinerija / Environmental engineering (T004)
Author(s): Pekarskas, Juozas;Gavenauskas, Algirdas;Jančius, Rūtenis
Title: The influence of liquid organic fertilizers forms on ecologically grown potatoes
Is part of: Agrosym 2018 [elektroninis išteklius] : IX International Scientific Agriculture Symposium, Jahorina, 4-7 October 2018, Bosnia and Herzegovina: book of abstracts / University of East Sarajevo [et al.]. East Sarajevo : Faculty of Agriculture, 2018
Extent: p. 740-740
Date: 2018
Keywords: potatoes;organic farming;liquid organic fertilizers;yield;chemical composition
ISBN: 9789997671851
Abstract: Investigation of the effect of liquid organic fertilizers on organically grown potatoes were carried out in light clay loam, shallow gleysol carbonaceous illimerised soils - Calc(ar) i-Epihypogleyic Luvisol - LVg-p-w-cc - at the experimental station of Aleksandras Stulginskis University in Lithuania in 2013-2014. The experiments were carried out with liquid organic fertilizers Biokal 1 and Fitokondi, in the manufacture of which herbal extracts were used; fertilizers Fertenat and Ruponis made from biohumus, and fertilizers Humistar rich in humic and fulvic acids. The forms of liquid organic fertilizers had an uneven influence on organic potatoes. The potatoes, which were sprayed with Biokal 1 fertilizer, total yield of potato tubers essentially increased by 0.89-1.47 t ha-1 or 5.34-9.14%, and marketable yield increased by 0.89-1.54 t ha-1 or 10.24-19.15% compared to spraying with fertilizers Fitokondi, Humistar, Fertenat and Ruponics, and no significant differences in the output of marketable yield were determined. Under the influence of Biokal 1, the content of dry matter in potato tubers compared to spraying with Ruponics and the starch content compared to spraying with Ruponics, Humistar and Fertenat substantially increased, and the content of nitrates in potato tubers significantly decreased compared to potato spraying with fertilizers Ruponics and Humistar. After spraying potatoes with fertilizer Biokal 1, the number of one-stem tubers compared to spraying with Humistar, Fertenat and Ruponics, substantially increased
Affiliation(s): Kauno statybos ir paslaugų mokymo centras
Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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