About: Long-term effect of low potassium fertilization on its soil fractions

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: Long-term effect of low potassium fertilization on its soil fractions Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In the Czech Republic, negative potassium (K) budget in agricultural soils is caused by non-fertilization by K and by a decline of manure application. We investigated soil available, fixed (acid-extractable, Kfix) and structural K pools in the field trial with graduated K application rate, established in 1972 at 8 sites of different climate and soils. The content of K-bearing minerals was evaluated on semi-quantitative scale by XRD diffraction. K-feldspars were a dominant source of structural K. Total soil K consisted of 1.7–7.1% of fixed K, which was in a positive relation to mixed-layer phyllosilicates. Differences in available K in treatments with K budget lower than –30 kg K/ha/year were small compared to those of fixed K. In control treatments, calculated average depletion of available K was –18 kg K/ha/year and the average depletion of fixed K was –12 kg K/ha/year; however at sites of higher altitude fixed K depletion prevailed. Fixed K accounted for 6–31% of the K budget. In negative K budget, monitoring of Kfix is advisable to avoid fertility loss of soil with low K supplying capacity. In the Czech Republic, negative potassium (K) budget in agricultural soils is caused by non-fertilization by K and by a decline of manure application. We investigated soil available, fixed (acid-extractable, Kfix) and structural K pools in the field trial with graduated K application rate, established in 1972 at 8 sites of different climate and soils. The content of K-bearing minerals was evaluated on semi-quantitative scale by XRD diffraction. K-feldspars were a dominant source of structural K. Total soil K consisted of 1.7–7.1% of fixed K, which was in a positive relation to mixed-layer phyllosilicates. Differences in available K in treatments with K budget lower than –30 kg K/ha/year were small compared to those of fixed K. In control treatments, calculated average depletion of available K was –18 kg K/ha/year and the average depletion of fixed K was –12 kg K/ha/year; however at sites of higher altitude fixed K depletion prevailed. Fixed K accounted for 6–31% of the K budget. In negative K budget, monitoring of Kfix is advisable to avoid fertility loss of soil with low K supplying capacity. (en)
Title	Long-term effect of low potassium fertilization on its soil fractions Long-term effect of low potassium fertilization on its soil fractions (en)
skos:prefLabel	Long-term effect of low potassium fertilization on its soil fractions Long-term effect of low potassium fertilization on its soil fractions (en)
skos:notation	RIV/00027006:_____/14:00003045!RIV15-MZE-00027006
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(QI91C118)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Madaras, Mikuláš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Výzkumný ústav rostlinné výroby, v.v.i.
http://linked.open...dnocenehoVysledku	26585
http://linked.open...ai/riv/idVysledku	RIV/00027006:_____/14:00003045
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	plant nutrition; soil mineralogy; X-ray diffraction; non-exchangeable potassium; long-term experiments (en)
http://linked.open.../riv/klicoveSlovo	non-exchangeable potassium soil mineralogy long-term experiments X-ray diffraction plant nutrition
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[712A28611AD8]
http://linked.open...i/riv/nazevZdroje	Plant, Soil and Environment
http://linked.open...in/vavai/riv/obor	GD
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Soil reserves of potassium in conditions of permanent negative nutrient balance in cereal agrosystems.
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	60
http://linked.open...iv/tvurceVysledku	Smatanová, M. Madaras, Mikuláš Koubová, M.
http://linked.open...ain/vavai/riv/wos	000341120700004
issn	1214-1178
number of pages	6 (xsd:int)

Faceted Search & Find service v1.16.118 as of Jun 21 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 67 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software