The Preparation of Controlled Release Fertilizer Based on Gelatin Hydrogel Including Ammonium Nitrate and Investigation of its Influence on Vegetable Growth

Yıl 2018, Sayı: 2, 17 - 24, 19.08.2018

Mehlika Pulat Nese Yoltay Saglam

Öz

A controlled release
fertilizer (CRF) systems
based on gelatin hydrogel was prepared to improve
fertilizer use efficiency and minimize its negative impact on environment.  Gelatin hydrogel was synthesized by using
glutaraldehyde (GA) as crosslinker and its swelling/degradation behaviors were
investigated. Ammonium nitrate (AN) was loaded into the gelatin hydrogel and
its releasing was followed. Release of AN from gelatin beads versus time was
followed, and it is found that the release gently increased at first and then
complied between 40-50 h. The releasing date shows that the prepared AN/gelatin
hydrogel system could be named as a CRF. The efficiency of gelatin hydrogel
beads including AN were examined on the vegetable growing using cucumber seeds.
Plant growth and stem elongations measurements presents the formed hydrogel
beads could be successfully used as a CRF system. It
can be concluded that the CRF system produced in this study is much promising
in utilizing a natural resource like gelatin in the production of matrix
material, which could significantly reduce the production costs and offer a
quite environ­mental friendly alternative technique.

Anahtar Kelimeler

Gelatin, Controlled release fertilizer, Ammonium nitrate, Plant growth, STEM elongation

Kaynakça

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