Sustainable coating material based on chitosan-clay composite and paraffin wax for slow-release DAP fertilizer

Assimi, Taha El; Lakbita, Omar; Meziane, Abdellatif El; Khouloud, Mehdi; Dahchour, Abdelmalek; Beniazza, Rédouane; Boulif, Rachid; Raihane, Mustapha; Lahcini, Mohammed

doi:10.1016/j.ijbiomac.2020.06.074

Cited by 76 publications

(30 citation statements)

References 53 publications

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“…In the pattern of SRF2, a shift in the basalt diffraction peak from 29.3 to 29.4 was observed but became weaker. This might be due to high compatibility between the blended paper, HPMC that led to the insertion of paper into HPMC layers which occurred as a result of cationic exchange between hydrogen bond and COO [ 44 ]. This slight change indicates that urea was absorbed into the HPMC-blended paper matrix, which slowed the release of the nutrient.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Slow-Release Fertilizer Hydrogel Based on Hydroxy Propyl Methyl Cellulose, Polyvinyl Alcohol, Glycerol and Blended Paper

Kareem

Dere

Gungula

et al. 2021

Gels

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In this study, biodegradable slow-release fertilizer (SRF) hydrogels were synthesized from hydroxyl propyl methyl cellulose (HPMC), polyvinyl alcohol (PVA), glycerol and urea (SRF1) and HPMC, PVA, glycerol, urea and blended paper (SRF2). The fertilizer hydrogels were characterized by SEM, XRD and FTIR. The swelling capacity of the hydrogels in both distilled and tap water as well as their water retention capacity in sandy soil were evaluated. The hydrogels had good swelling capacity with maximum swelling ratio of 17.2 g/g and 15.6 g/g for SRF1 and SRF2 in distilled, and 14.4 g/g and 15.2 g/g in tap water, respectively. The water retention capacity of the hydrogels in sandy soil exhibited higher water retention when compared with soil without the (SRFs). The soil with the hydrogels was found to have higher water retention than the soil without the hydrogels. The slow-release profile of the hydrogels was also evaluated. The result suggested that the prepared fertilizer hydrogels has a good controlled release capacity. The blended paper component in SRF2 was observed to aid effective release of urea, with about 87.01% release in soil at 44 days compared to the pure urea which was about 97% release within 4 days. The addition of blended paper as a second layer matrix was found to help improve the release properties of the fertilizer. The swelling kinetic of the hydrogel followed Schott’s second order model. The release kinetics of urea in water was best described by Kormeye Peppas, suggesting urea release to be by diffusion via the pores and channels of the SRF, which can be controlled by changing the swelling of the SRF. However, the release mechanism in soil is best described by first order kinetic model, suggesting that the release rate in soil is depended on concentration and probably on diffusion rate via the pores and channels of the SRF.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Slow-Release Fertilizer Hydrogel Based on Hydroxy Propyl Methyl Cellulose, Polyvinyl Alcohol, Glycerol and Blended Paper

Kareem

Dere

Gungula

et al. 2021

Gels

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“…Double coated diammonium phosphates fertilizer with chitosan-clay composites as inner coating and paraffin wax as an outer coating significantly delayed dissolution of P compared to uncoated DAP. The biodegradation study of composite material in soil and the biochemical oxygen demand tests revealed that the coating system proposed could be considered as a carbon source for microorganisms after the fertilization process, which confirms its sustainability [27].…”

Section: Zeolite Based Materials and Othersmentioning

confidence: 55%

“…Being degradable in soil and environment-friendly, could be especially useful in agricultural and horticultural applications. In another experiment [27] prepared a chitosan coated DAP fertilizer through double coating approach. In this formulation DAP fertilizer was coated with chitosan clay complex as inner coating and paraffin wax as outer coating significantly reduce the dissolution of P when compared to the uncoated DAP.…”

Section: Polymer Coated Ureamentioning

confidence: 99%

Controlled Release of Nutrients for Soil Productivity- A Review

Rehana

Gladis

Joseph

2022

CJAST

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The nutrient release from conventional chemical fertilizers to the soil are lost continuously through leaching, runoff, volatilisation, denitrification etc and also most of the time they do not satisfy the plant requirements without the continuous application. These issues have caused economic loss as well as environmental pollution due to hazardous emissions and water eutrophication. Controlled release of nutrients through the application of slow/controlled release fertilizers and nanofertilizers are possible solutions, which provides their nutrients according to the requirement of crops. Release of nutrients from controlled release fertilizers are delayed by means of coating the soluble fertilizer core with porous semipermeable membrane. A variety of coating materials are developed for the preparation of controlled release fertilizers. The longevity of controlled release fertilizers (CRFs) depends upon the thickness of coating, temperature and moisture content. Nano technology is an emerging field, which also produce nanofertilizers based on CRFs are used for the increment of active fertilizer material in the field, as they present large surface area for the release of required nutrients to the plant in a controlled manner. Controlled release of nutrients has profound influence on soil properties and yield parameters of crops. The use of controlled release fertilizers (CRFs) starts to evolve as a promising direction offering an excellent means to improve management of nutrient application and by this reducing significantly environmental threats while maintaining high crop yields of good quality. Controlled release fertilizers allow the release of nutrients to be better matched with the life cycle of the plant.

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“…The results of biodegradation in different soils showed that the sandy soil was the most promising . CS-based EEFs were evaluated by different methodologies in order to measure the efficiency of biodegradation. , This shows a tendency of the scientific community to evaluate the behavior of the EEFs matrix after application. On the basis of the obtained results and the previously published studies, it is possible to approve the biodegradation of CS and CMC in soil.…”

Section: Resultsmentioning

confidence: 99%

Biodegradable Enhanced Efficiency Fertilizer Based on Biopolymers/Zeolites Films’ Assembly

Pereira

Fernandes

Souza

et al. 2021

ACS Agric. Sci. Technol.

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Enhanced efficiency fertilizers (EEFs) have gained ground in the fertilizer trade. However, most of the EEFs marketed are not biodegradable. Therefore, it is necessary to produce EEFs that biodegrade in the soil. In this work, we developed EEFs based on chitosan, carboxymethyl cellulose, and zeolite as support for macro and micronutrients. Zeolite enriched with fertilizer was added to the carboxymethyl cellulose to obtain mono and multielement casting films. Sequentially, for the first time reported in the literature, EEFs were produced from multilayer films by overlapping and hot-pressing. The release of ions, in water and soil, and the biodegradation of the prepared materials and the Basacote were evaluated. The developed EEFs showed similar macro and micronutrient release in water and soil compared with the Basacote, but the developed EEFs showed higher biodegradation. Therefore, we propose a new EEF with efficient results of release in soil, biodegradability, low cost, and easy preparation.

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Sustainable coating material based on chitosan-clay composite and paraffin wax for slow-release DAP fertilizer

Cited by 76 publications

References 53 publications

Synthesis and Characterization of Slow-Release Fertilizer Hydrogel Based on Hydroxy Propyl Methyl Cellulose, Polyvinyl Alcohol, Glycerol and Blended Paper

Synthesis and Characterization of Slow-Release Fertilizer Hydrogel Based on Hydroxy Propyl Methyl Cellulose, Polyvinyl Alcohol, Glycerol and Blended Paper

Controlled Release of Nutrients for Soil Productivity- A Review

Biodegradable Enhanced Efficiency Fertilizer Based on Biopolymers/Zeolites Films’ Assembly

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