Soil Amendment with a Lignite-Derived Humic Substance Affects Soil Properties and Biomass Maize Yield

A two-year pot experiment was set up to determine the ability of Actosol (Act) to improve soil properties and maize yields. The Act effects were compared to those of manure, nitrogen/phosphorus/potassium (NPK) and an additive-free control (Ctr). After years 1 and 2, the pH, sorption properties, tota...

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Bibliographic Details
Published in:Sustainability 2023-01, Vol.15 (3), p.2304
Main Authors: Solek-Podwika, Katarzyna, Ciarkowska, Krystyna, Filipek-Mazur, Barbara
Format: Article
Language:English
Subjects:
Additives
Agricultural production
Bioavailability
Biomass
Cation exchange
Cation exchanging
Corn
Crop yield
Crop yields
Environmental aspects
Experiments
Humic acid
Humic acids
Humic substances
Lignite
Nitrogen
Organic matter
Organic soils
Phosphorus
Potassium
Refuse and refuse disposal
Soil amendment
Soil amendments
Soil improvement
Soil organic matter
Soil properties
Soil quality
Soil research
Soil types
Statistics
Sustainability
Waste disposal
Wheat
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Summary:A two-year pot experiment was set up to determine the ability of Actosol (Act) to improve soil properties and maize yields. The Act effects were compared to those of manure, nitrogen/phosphorus/potassium (NPK) and an additive-free control (Ctr). After years 1 and 2, the pH, sorption properties, total carbon (TC), total N (TN), available P and K contents, dehydrogenase activity (DHA), residuum (Re) and humic acids (HAs) were measured in coarse- and medium-textured soils. Maize yield, N, P and K were also quantified. The plant element uptake and soil quality index (SQI) were calculated. In both soil types, the Act increased the DHA, cation exchange capacity, bioavailable K, P, TC, TN, C HAs and C Re in the soils compared to the Ctr. The maize yield, K and P contents and their uptake by the maize increased in both soil types after Act application. The SQI increased by >50% with a single dose (Act1), almost doubling with a double dose (Act2) compared to the Ctr. With Act1 and Act2, the P and K uptake increased several-fold. The soil properties and maize yield after using Act demonstrated its utility in improving soil organic matter and maize growth and in disposing of waste.
ISSN:2071-1050
2071-1050
DOI:10.3390/su15032304