Sewage sludge compost long-term experiment

This experiment has been added by the GLTEN Curators using existing published sources.
Local identifier
Hungary, Nyíregyháza
Years operational
2006—
Objective
The experiment was established to study the effects of regular application of sewage sludge compost on acidic sandy soil.
Description
The 0, 9, 18 and 27 t/ha doses of sewage sludge compost are studied in a small plot (12 m x 19 m) experiment. The compost was designed for sandy soil with co-composting of organic matter (sewage sludge and straw) and minerals (zeolite and bentonite). The experiment was set up in five, not-randomized blocks with three test plants in all-year crop rotations.
Data Access Statement
Other
Data license
Don't know
Data policy
Don't know
Organization
University of Debrecen, IAREF, Research Institute of Nyíregyháza
field part
People
Dr. Marianna Makádi
principal investigator
University of Debrecen
Institutes for Agricultural Research and Educational Farm, Research Institute of Nyíregyháza
Dr. Tibor József Aranyos
experiment manager
University of Debrecen, IAREF, Research Institute of Nyíregyháza

Site: Sewage sludge compost experiment

Type
research station field
Location
Nyíregyháza
Szabolcs-Szatmár-Bereg county
Hungary
Geographic location
47.988273, 21.70362
© OpenStreetMap contributors
Elevation
106 Metres
Visits permitted?
Yes
Visiting arrangements
Visits are possible for professionals after arrangement by email.
History
The 1.4 hectares of the experiment has been used for crop production more than 100 years. Soil pH was acidic (about pH(KCl) 4), humus content was low (about 0.8%).
Management
Soil is conventionally managed in terms of weed and pest management while chemical fertilizers are not used. The applied sewage sludge compost was planned for acidic sandy soils with straw, bentonite and zeolite addition to the sewage sludge in the course of composting process. Test plants are sawn in crop rotation. 2003-2017 maize, green pea and triticale were used, while from 2018 maize, hairy vetch with rye and rye are sawn yearly. Treatments are 0, 9, 18 and 27 t/ha sewage sludge compost ploughed into the soil in the autumn of every third year.
Soil type
arenosol
Soil description
Dystric Lamellic Arenosol (WRB)
Soil properties
VariableDepthValue (range)UnitsRef yearEstimated?Baseline?
pH (KCl)0 – 30 Centimetres5.8 (4.8 – 6.5) 2012
Humus content0 – 30 Centimetres0.8 (0.63 – 0.91) %2012
AL-P2O50 – 30 Centimetres202 (96 – 319) milligram per kilogram2012
AL-K2O0 – 30 Centimetres134 (126 – 148) milligram per kilogram2012
Climatic type
warm continental / mediterranean climate
Climate properties
VariableTime periodValue (range)Units
Mean annual temperature10 degree Celsius
Mean annual precipitation560 millimeter

Design period:

Design description
Not randomized blocks in five replications.
Number of plots
4
Number of subplots
12
Number of replicates
5
Number of harvests per year
1
Crops
CropYears grown
maize
triticale
cow peas
rye
hairy vetch
Crop Rotations
First period  2006—2017
  • 1
    maize
  • 2
    cow peas
  • 3
    triticale
Recent period  2019—
  • 1
    maize
  • 2
    rye
    hairy vetch
  • 3
    rye
Factor
Factor name
Factor levels
sewage sludge compost exposure
sewage sludge compost: 40% sludge; 25% straw; 30% rhyolite; 5% betionite
control exposure  (0 t/ha)
2006—
Applied to crop: All crops
Application frequency: every third year
Application method: mouldboard plough
SSC1  (9 t/ha)
2006—
Applied to crop: All crops
Application frequency: every third year
Application method: mouldboard plough
Chemical form: aerobic compost
SSC2  (18 t/ha)
2006—
Applied to crop: All crops
Application frequency: every third year
Application method: mouldboard plough
Chemical form: aerobic compost
SSC3  (27 t/ha)
2006—
Applied to crop: All crops
Application frequency: every third year
Application method: mouldboard plough
Chemical form: aerobic compost
Measurements
VariableMaterialUnitsFrequencyScaleComment
soil pHSoilannually
humus contentSoil%annually
AL-P2O5Soilmg/kgannually
AL-K2OSoilmg/kgannually
plant available MgSoilmg/kgannually
plant available NaSoilmg/kgannually
plant available ZnSoilmg/kgannually
plant available CuSoilmg/kgannually
plant available MnSoilmg/kgannually
toxic elementsNot specifiedmg/kgannuallyMeasured in soil and plant samples from 2007 to 2017 .
PLFASoilnanomol per gramPLFAs were measured only in 2013
crop yieldAll cropst/haannually

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