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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F14%3A00003045" target="_blank" >RIV/00027006:_____/14:00003045 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

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

Original language 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 neg

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GD - Fertilization, irrigation, soil treatment

OECD FORD branch

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Project

<a href="/en/project/QI91C118" target="_blank" >QI91C118: Soil reserves of potassium in conditions of permanent negative nutrient balance in cereal agrosystems.</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Plant, Soil and Environment

ISSN

1214-1178

e-ISSN

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Volume of the periodical

60

Issue of the periodical within the volume

8

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

6

Pages from-to

358-363

UT code for WoS article

000341120700004

EID of the result in the Scopus database

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