Renewable mixed hydrogels based on polysaccharide and protein for release of agrochemicals and soil conditioning

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F21%3A63545018" target="_blank" >RIV/70883521:28610/21:63545018 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2071-1050/13/18/10439" target="_blank" >https://www.mdpi.com/2071-1050/13/18/10439</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/su131810439" target="_blank" >10.3390/su131810439</a>

Result language

angličtina

Original language name

Renewable mixed hydrogels based on polysaccharide and protein for release of agrochemicals and soil conditioning

Original language description

The study deals with the combination of biopolymers to develop hydrogels intended for agriculture application. The aim is to propose a renewable and eco-compatible solution to enhance agrochemicals and water efficiency and contribute to maintaining soil fertility. We developed a set of hydrogels based on casein and chitosan for water retention and release of agrochemicals, in particular nitrogen fertilizer urea. The weight ratio of biopolymers, from 0.5 to 2, was investigated to understand the influence of their content on the morphology, swelling, swelling-drying cycles, and water retention in soil. The average content of urea in the hydrogels was 30% of the total weight, and up to 80% was released in the soil in 50 days. The biodegradation of the hydrogels in soil has been investigated by the burial method and monitoring the release of CO2 . Results demonstrated that by increasing the content of chitosan, the biodegradation time is prolonged up to 20% in 90 days. The obtained results support the ultimate purpose of the work that the combination of two biopolymers at proper weight ratio could be a valid alternative of the marketed hydrogels with the final goal to promote soil fertility and water retention and prolong biodegradation. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10404 - Polymer science

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Sustainability

ISSN

2071-1050

e-ISSN

—

Volume of the periodical

13

Issue of the periodical within the volume

18

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

—

UT code for WoS article

000699893800001

EID of the result in the Scopus database

—