Evaluation of soil aggregate stability and infiltration rate in long-term field trials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F18%3A00004960" target="_blank" >RIV/00027006:_____/18:00004960 - 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

Evaluation of soil aggregate stability and infiltration rate in long-term field trials

Original language description

Soil aggregate stability (SAS) belongs among the most important parameters determining the quality of soil. The aim of this work is evaluate the relation between SAS, hydrophysical properties of soil and infiltration rate in a long-term experiment at three experimental stations of Crop Research Institute in the Czech Republic. Stability of soil aggregates (SAS), hydrophysical soil properties and rate of infiltration were investigated in the long-term trial established in 1956 at sites Ivanovice (altitude 225 m, mean temperature 9,2 °C, rainfall 548 mm, silty loam chernozem), Čáslav (altitude 263 m, mean temperature 8,9 °C, rainfall 555 mm, silty loam phaeozem) and Lukavec (altitude 610 m, mean temperature 7,3 °C, rainfall 683 mm, sandy loam-loam cambisol). Variants with different fertilization (without fertilization, fertilization with manure, fertilization with manure and mineral fertilization) were evaluated. Significant impact of fertilisation on SAS was found. The lowest SAS was at plots with manure and mineral fertilization (19.8%) compared with plots without fertilization (23.1%) and plots with manure fertilization (22.2%). Significant differences were recorded in infiltration rate. Two-times higher infiltration was observed at fertilized plots (45 mm hour -1) compared to unfertilized plots (24 mm hour -1). However the range of infiltration rates was wide (43-71 mm hour -1) at plots fertilized by manure. Hydrophysical soil properties were more favourable at fertilized plots (total porosity 48.6%) than unfertilized plots (47.3%). The lowest soil porosity (46.2%) and the highest bulk density (1.4 g cm-3) were recorded at Čáslav, which corresponded with the lowest SAS (14.8 %). Although locality Čáslav and Ivanovice had the same soil texture, SAS (21.3%) and soil porosity (50.2%) were higher at Ivanovice.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

40101 - Agriculture

Project

<a href="/en/project/QK1810186" target="_blank" >QK1810186: Agrotechnical measures for improvement of soil structure stability and rainwater infiltration</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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