The content of mobile aluminium compounds depending on the long-term use of various fertilizing and liming systems of Albic Pantostagnic Luvisol
Laen...
Kuupäev
2023
Kättesaadav alates
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian University of Life Sciences
Abstrakt
Today, climate change is exacerbating the problems of efficient and environmentally
friendly use of acidic soils, which are widespread in Ukraine. At the same time, the role of mobile
aluminium compounds in acidity formation is also becoming increasingly important. In this
regard, chemical amelioration remains a primary and very important factor in the system of
resource-saving and environmentally friendly agricultural measures for the efficient and balanced
use of acidic soils. Therefore, the main objective of the research is to establish scientifically sound
doses of chemical ameliorant that reduce the content of mobile aluminium compounds and ensure
environmental safety and high productivity of agrocenoses on Albic Pantostagnic Luvisol. The
research was carried out in a long-term stationary experiment established in 1965 with different
doses of mineral fertilisers, manure and lime on an Albic Stagnic Luvisol. It was found that with
a prolonged application of mineral fertilisers and the use of this soil without fertilisers, the content
of mobile aluminium compounds at the end of the X rotation at pHKCl 4.20 and 4.42 was 68.4 and
58.5 mg kg-1 respectively. Under the organo-mineral and mineral fertilisation systems with
liming with 6.0 t ha-1 of CaCO3 calculated by hydrolytic acidity, the content of mobile aluminium
compounds decreased to 7.2 and 6.7 mg kg-1 of soil respectively. Under identical fertilisation
systems with a lime application by pH-buffering capacity (2.5 t ha-1 CaCO3), the content of
mobile aluminium compounds is 10.8–10.0 mg kg-1 soil.
Kirjeldus
Received: January 31st, 2023 ; Accepted: April 27th, 2023 ; Published: May 16th, 2023 ;
Correspondence: olifir.yura@gmail.com
Märksõnad
acidity, aluminium, Albic Pantostagnic Luvisol, fertilizers, liming, articles