R&D result detail

Original Title

Composite materials for controlled release of mineral nutrients and humic substances for agricultural application

English Title

Composite materials for controlled release of mineral nutrients and humic substances for agricultural application

Type

WoS Article

Original Abstract

Controlled-release fertilizers based on superabsorbents containing lignohumate and conventional mineral fertilizer (NPK) were prepared. Their water absorption was supported by the presence of lignohumate (LH) and suppressed by the presence of NPK. The release of mineral nutrients was prolonged up to four weeks in the case of increased content of NPK. The addition of LH had negligible influence on the release of P and N. The release of LH was partially suppressed by the higher content of NPK. The release of nutrients from all used samples was connected with the strong increase in conductivity and weak increase in pH values. The application of superabsorbents supported growth of corn. The length of roots was probably more influenced by better water management, while the growth of above-ground plant was more affected by release of nutrients.

English abstract

Controlled-release fertilizers based on superabsorbents containing lignohumate and conventional mineral fertilizer (NPK) were prepared. Their water absorption was supported by the presence of lignohumate (LH) and suppressed by the presence of NPK. The release of mineral nutrients was prolonged up to four weeks in the case of increased content of NPK. The addition of LH had negligible influence on the release of P and N. The release of LH was partially suppressed by the higher content of NPK. The release of nutrients from all used samples was connected with the strong increase in conductivity and weak increase in pH values. The application of superabsorbents supported growth of corn. The length of roots was probably more influenced by better water management, while the growth of above-ground plant was more affected by release of nutrients.

Keywords

fertilizer; lignohumate; release; superabsorbent; swelling

Key words in English

fertilizer; lignohumate; release; superabsorbent; swelling

Authors

KRATOCHVÍLOVÁ, R.; SEDLÁČEK, P.; POŘÍZKA, J.; KLUČÁKOVÁ, M.

RIV year

2022

Released

18.06.2020

Publisher

WILEY

Location

HOBOKEN

ISBN

1475-2743

Periodical

SOIL USE AND MANAGEMENT

Volume

37

Number

3

State

United Kingdom of Great Britain and Northern Ireland

Pages from

460

Pages to

467

Pages count

8

URL

https://onlinelibrary.wiley.com/doi/abs/10.1111/sum.12613

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@article{BUT164322,
  author="Romana {Kratochvílová} and Petr {Sedláček} and Jaromír {Pořízka} and Martina {Klučáková}",
  title="Composite materials for controlled release of mineral nutrients and humic substances for agricultural application",
  journal="SOIL USE AND MANAGEMENT",
  year="2020",
  volume="37",
  number="3",
  pages="460--467",
  doi="10.1111/sum.12613",
  issn="0266-0032",
  url="https://onlinelibrary.wiley.com/doi/abs/10.1111/sum.12613"
}