Phosphorus Availability and Balance with Long-Term Sewage Sludge and Nitrogen Fertilization in Chernozem Soil under Maize Monoculture

A continuous long-term field experiment with maize monoculture was conducted to evaluate the P availability and balance, DM yield, P uptake, and P sorption parameters in chernozem soil after 27 years. A total of 2 doses of nitrogen (120 and 240 kg ha ) were applied as mineral nitrogen (N and N ) and...

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Published inPlants (Basel) Vol. 13; no. 15; p. 2037
Main Authors Asrade, Dinkayehu Alamnie, Kulhánek, Martin, Balík, Jiří, Černý, Jindřich, Sedlář, Ondřej, Suran, Pavel
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 01.08.2024
Subjects
Agricultural production
Aluminum
Availability
Biomass energy
Corn
Crop diseases
Crop yield
dry matter yield
Experiments
Fertilization
Fertilizers
Hydroxyapatite
legacy P
Loam soils
maize
Monoculture
Nitrogen
Nutrients
P availability
P balance
Phosphorus
Precipitation
Sewage sludge
Sludge
Soils
Sorption
sorption parameters
Czech Republic
Germany
sorption parameters
P availability
legacy P
P balance
maize
dry matter yield
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Summary:A continuous long-term field experiment with maize monoculture was conducted to evaluate the P availability and balance, DM yield, P uptake, and P sorption parameters in chernozem soil after 27 years. A total of 2 doses of nitrogen (120 and 240 kg ha ) were applied as mineral nitrogen (N and N ) and sewage sludge (SS and SS ) and compared with unfertilized control (Con). The aboveground biomass (DM) yields significantly increased in the order of Con < SS < SS < N < N treatments and the maximum P uptake was recorded for both N and SS (25.1 kg P ha ) according to the nutrient application gradient. The N and N treatments positively influenced the DM yield but negatively influenced the P balance (-648 and -678 kg P ha 27 years ), gradually bringing a risk of P deficiency in the soil. On the other hand, applications of SS and SS positively influenced the P availability and pseudototal (P ) content in the soil, which resulted in a buildup of legacy P or an increase in P saturation greater than the environmental threshold value. Aluminum was found to be a major controlling sorption factor for P in our chernozem soil.
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ISSN:2223-7747
2223-7747
DOI:10.3390/plants13152037