Publication detail

Slow-release nitrogen fertilizers with biodegradable poly(3-hydroxybutyrate) coating

KROBOT, Š. KONTÁROVÁ, S. PŘIKRYL, R.

Original Title

Slow-release nitrogen fertilizers with biodegradable poly(3-hydroxybutyrate) coating

Type

abstract

Language

English

Original Abstract

Fertilizers are crucial in meeting the increasing demand for food in agriculture. However, excessive concentrations and uncontrolled leaching of nutrients contribute to environmental pollution by increasing reactive, unassimilated nitrogen levels. This study explores the formulation and characteristics of slow-release fertilizers coated with fully biodegradable poly(3-hydroxybutyrate), offering a gradual nitrogen release without soil pollution. Calcium ammonium nitrate, a nitrogen fertilizer, was combined with selected filler materials (poly(3-hydroxybutyrate), struvite, dried biomass) and pelletized. These pellets were then coated with a solution of poly(3-hydroxybutyrate) in dioxolane, forming a thin, high-quality polymer coating. Testing revealed that some coated pellets retained excellent resistance even after 76 days submerged in water, with only 20% of the ammonium nitrate released. Pot experiments conducted in Mitscherlich vegetation vessels assessed the impact of these coated fertilizers on maize growth and soil nitrogen release dynamics. Results demonstrated that utilizing these coated fertilizers effectively supplies maize plants with necessary nutrients while ensuring the poly(3-hydroxybutyrate) coating does not impede maize growth.

Keywords

Slow-release fertilizers, polyhydroxyalkanoates, poly(3-hydroxybutyrate), coating, nitrogen-based fertilizers

Authors

KROBOT, Š.; KONTÁROVÁ, S.; PŘIKRYL, R.

Released

5. 9. 2024

Location

Ostřihom, Maďarsko

Pages from

109

Pages to

109

Pages count

1

URL

https://www.bipoco.hu/programme/

BibTex

@misc{BUT190120,
  author="Štěpán {Krobot} and Soňa {Kontárová} and Radek {Přikryl}",
  title="Slow-release nitrogen fertilizers with biodegradable poly(3-hydroxybutyrate) coating",
  year="2024",
  pages="109--109",
  address="Ostřihom, Maďarsko",
  url="https://www.bipoco.hu/programme/",
  note="abstract"
}