Systematic literature review on slow/ controlled release fertilizers (SCRF) material:  fabrication methods, characteristics, nutrient release, and crop yield effects

Suci Setia Crise Manullang; Fitri Khoerunnisa

doi:10.29303/aca.v9i1.283

Authors

Suci Setia Crise Manullang Universitas Pendidikan Indonesia
Fitri Khoerunnisa

DOI:

https://doi.org/10.29303/aca.v9i1.283

Keywords:

Slow/Controlled Release Fertilizers, Fabrication Methods, Material Characteristic, Nutrient Release, Crop Yield

Abstract

Slow/controlled-release fertilizers (SCRF) are increasingly adopted to improve nutrient-use efficiency and reduce environmental losses amid fertilizer price volatility and sustainability demands. This systematic literature review synthesizes recent SCRF evidence by linking fabrication methods, material characteristics, nutrient release behavior, and agronomic outcomes. A structured search was conducted in ScienceDirect for open-access English research articles published between 2021–2025, focusing on urea-based SCRF that reported material composition/characterization, nutrient release profiles, soil indicators, and/or crop productivity. Thirty-eight studies met the inclusion criteria. The SCRFs were grouped into five material classes: synthetic polymers, natural/biobased polymers, biochar-based composites, inorganic minerals, and inhibitor/multifunctional systems. Fabrication was dominated by coating/encapsulation and blending to form core–shell granules (common in synthetic polymers), while polymerization, cross-linking, and casting frequently produced hydrogels or porous 3D networks (typical of biopolymers). Across studies, surface chemistry (hydrophobic versus hydrophilic functional groups) and coating integrity governed water ingress and release mechanisms (diffusion-barrier release versus swelling/degradation-assisted release), yet mechanical and swelling reporting remained inconsistent. Overall, SCRF improved crop yields relative to conventional fertilizers, with reported gains ranging from 1.47% to over 100% depending on material type, crop, and trial conditions. Key trade-offs persist between long-duration release precision, cost, and biodegradability, and cross-study comparison is limited by non-uniform biodegradation tests. Several papers assessed nitrogen-use efficiency and soil indicators (e.g., leaching or gaseous losses), but protocols and reporting units varied. Incorporating inhibitors or mineral fillers can further extend release, yet may increase persistence risks and complicate environmental fate assessment. Future work should standardize performance metrics and develop hybrid designs that balance release control, durability, and environmental fate.

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References

Weiner, M., Moakes, S., Raya-sereno, M. D., & Cooper, J. (2024). Legume-based crop rotations as a strategy to mitigate fluctuations in fertilizer prices ? A case study on bread wheat genotypes in northern Spain using life cycle and economic assessment. European Journal of Agronomy, 159(July), 127267. https://doi.org/10.1016/j.eja.2024.127267

Gmitrowicz-iwan, J., Pranagal, J., & Smal, H. (2023). Improving acidic sandy soil properties for plant growth with dam reservoir sediments in the face of soaring fertiliser prices. Soil & Tillage Research, 234. https://doi.org/10.1016/j.still.2023.105843

Willwerth, H. S., Khaemba, C. N., Serra, T., Michelson, H. C., Rutsaert, P., & Donovan, J. (2025). Global shocks and local sellers : Kenyan fertilizer markets ’ response to the fuel-fertilizer-food price crisis ☆. Food Policy, 133, 102889. https://doi.org/10.1016/j.foodpol.2025.102889

Assefa, T. W., Berhane, G., Abate, G. T., & Abay, K. A. (2025). Fertilizer demand and profitability amid global fuel-food-fertilizer crisis : Food Policy, 133, 102785. https://doi.org/10.1016/j.foodpol.2024.102785

Liu, M., Geng, D., Wu, L., Min, L., & Wang, S. (2025). The impact of agricultural land use change on water and nitrate fluxes in the deep vadose zone , the North China Plain. Journal of Hydrology: Regional Studies, 62, 102914. https://doi.org/10.1016/j.ejrh.2025.102914

Prayitno, G., Dinanti, D., Ihsansi, I., & Tjachja, A. (2021). Place attachment and agricultural land conversion for sustainable agriculture in Indonesia. Heliyon, 7, e07546. https://doi.org/10.1016/j.heliyon.2021.e07546

L. Afifah and N. W. Saputro, Strategi Hijau : Petunjuk Praktis Pengendalian Hama Terpadu Padi Bio-Intensif untuk Pertanian Berkelanjutan. Sumedang: Unpad Press, 2024.

Sihag, R. (2024). Maximizing Fertilizer Use Efficiency : Innovative Strategies. July.

Huang, Y., Lee, Y., & Fan, C. (2025). Innovative fertilization strategies for in-situ pollution control and carbon negativity enhancement in agriculture. Agricultural Water Management, 307, 109270. https://doi.org/10.1016/j.agwat.2024.109270

Wu, P., Huang, H., Wu, Q., Liu, F., Ren, L., Zhang, Z., Liu, B., Zhang, P., Jia, Z., & Gao, Z. (2024). Field Crops Research Innovative fertilizer management system maintains higher maize productivity with lower environmental costs in the Loess Plateau region of China. 315(April). https://doi.org/10.1016/j.fcr.2024.109471

Ramesh, K., & Raghavan, V. (2025). Biochar/bentonite composite beads for controlled nitrogen release and reduced environmental impact: From banana waste to sustainable food security. Results in Surfaces and Interfaces, 19, 100500. https://doi.org/https://doi.org/10.1016/j.rsurfi.2025.100500

Liao, J., Lin, Y., Xu, M., Luo, Z., Jiang, G., Chen, F., Li, H., & Yang, L. (2024a). Preparation of hydrophobic hard gelatin capsules for slow-release fertilizers. Polymer Testing, 134, 108427. https://doi.org/10.1016/j.polymertesting.2024.108427

Ren, W., Li, X., Liu, T., Chen, N., Xin, M., Qi, Q., & Liu, B. (2025). Controlled-release fertilizer improved sunflower yield and nitrogen use efficiency by promoting root growth and water and nitrogen capacity. Industrial Crops and Products, 226, 120671. https://doi.org/https://doi.org/10.1016/j.indcrop.2025.120671

Chen, L., Huang, X., Sun, S., Zhuo, Y., Li, C., & Sun, C. (2025b). An effective biochar-based slow-release fertilizer for promoting the formation of bioavailable P-phase and the slow-release performance of nutrients by the addition of attapulgite. Journal of Environmental Chemical Engineering, 118240.

Rojas, N., Gonz, M., Mu, S., Naser, K., Hirzel, J., & Seguel, A. (2025). Biochar-based controlled-release ammonium phosphate fertilizer : Synthesis and impact on soil nutrient dynamics , wheat growth , and yield under controlled conditions. 39. https://doi.org/10.1016/j.eti.2025.104269

Wasie, Y., Periyasamy, S., & Tesfaye, M. (2025). South African Journal of Chemical Engineering Lactic acid oligomer grafted gum acacia encapsulated controlled release nitrogen fertilizer for crops improvements and greener soil sustainability. South African Journal of Chemical Engineering, 53, 158–175. https://doi.org/10.1016/j.sajce.2025.04.017

Anteneh, Y. W., Kumar, S., & Tesfaye, M. (2025). Lactic Acid Oligomer Grafted Gum Acacia Encapsulated Controlled Release Nitrogen Fertilizer for Crops Improvements and Greener Soil Sustainability. South African Journal of Chemical Engineering, 53. https://doi.org/https://doi.org/10.1016/j.sajce.2025.04.017

Ren, W., Li, X., Liu, T., Chen, N., Xin, M., Qi, Q., & Liu, B. (2025). Controlled-release fertilizer improved sunflower yield and nitrogen use efficiency by promoting root growth and water and nitrogen capacity. Industrial Crops and Products, 226, 120671. https://doi.org/https://doi.org/10.1016/j.indcrop.2025.120671

Umar, W., Balogh, J., Hameed, M. K., Ayub, M. A., Anwaar, M. H., Czinkota, I., & Gulyás, M. (2023). Reduction of nitrous oxide emission by using stearic acid combined zinc coated urea in silty clay and sandy loam soils under bare and planted conditions. Heliyon, 9(12). https://doi.org/https://doi.org/10.1016/j.heliyon.2023.e22578

Dong, Y., Hu, Y., Song, X., Guo, S., Ma, Y., Hou, P., Wang, H., & Wang, J. (2025). Slow-release fertilizers mitigate brackish water stress in rice: Boosting yield and nitrogen use efficiency in saline soils. Agricultural Water Management, 319, 109790. https://doi.org/https://doi.org/10.1016/j.agwat.2025.109790

Rojas, N., Gonz, M., Mu, S., Naser, K., Hirzel, J., & Seguel, A. (2025). Biochar-based controlled-release ammonium phosphate fertilizer : Synthesis and impact on soil nutrient dynamics , wheat growth , and yield under controlled conditions. 39. https://doi.org/10.1016/j.eti.2025.104269

Li, R., Tang, J., Wang, Y., Wang, C., Lian, S., Huang, J., Kang, Y., Yang, Y., Mao, K., Liu, Y., Wang, B., & Liu, P. (2025). Preparation and application of nano-copper modified castor oil-based polyurethane controlled release coated urea. Industrial Crops & Products, 235, 121774. https://doi.org/10.1016/j.indcrop.2025.121774

Arjun, M. S., Haripriya, S., Vishnu, R., Santhoshkumar, A. V, & Anish, M. C. (2025). Multi-functional hydrogels for sustainable agriculture: Controlled fertilizer release, pollution control, and drought resilience. Next Sustainability, 6. https://doi.org/https://doi.org/10.1016/j.nxsust.2025.100191

Jiang, S., Duan, Q., Ma, L., Song, Y., Xie, H., Liu, H., Chen, L., & Yu, L. (2024). Preparation and characterization of slow-release fertilizer through coating acrylate epoxidized soybean oil. Environmental Technology & Innovation, 34, 103626. https://doi.org/https://doi.org/10.1016/j.eti.2024.103626

Wang, Y., Hua, Y., Mei, L., Meng, Y., Guo, Y., Cai, J., Huang, M., Zhong, Y., Wang, X., & Jiang, D. (2025). The combined application strategy of controlled-release fertilizers can balance the yield and quality of soft wheat while meeting its nutrient requirements. Journal of Integrative Agriculture. https://doi.org/https://doi.org/10.1016/j.jia.2025.02.038

Chen, L., Huang, X., Sun, S., Zhuo, Y., Li, C., & Sun, C. (2025a). An effective biochar-based slow-release fertilizer for promoting the formation of bioavailable P-phase and the slow-release performance of nutrients by the addition of attapulgite. Journal of Environmental Chemical Engineering, 13. https://doi.org/https://doi.org/10.1016/j.jece.2025.118240

Wang, Y., Hua, Y., Mei, L., Meng, Y., Guo, Y., Cai, J., Huang, M., Zhong, Y., Wang, X., & Jiang, D. (2025). The combined application strategy of controlled-release fertilizers can balance the yield and quality of soft wheat while meeting its nutrient requirements. Journal of Integrative Agriculture. https://doi.org/https://doi.org/10.1016/j.jia.2025.02.038.

Wang, Y., Sun, J., Gao, S., He, B., Wu, Z., He, W., Tao, W., Tang, X., Geng, Z., & Li, W. (2025). Single-time fertilization of controlled release blended fertilizer optimizes soil nitrogen distribution and root characteristics to increase conventional japonica rice (Oryza sativa L.) grain yield and nitrogen use efficiency. Journal of Integrative Agriculture. https://doi.org/https://doi.org/10.1016/j.jia.2025.02.034

Shan, P., Liu, H., Li, D., Zhou, R., Huang, S., Cai, P., Wang, Z., Lu, Y., Li, Z., & Li, Z. (2021). Thiol-ene Click Chemistry Using Triethylamine Gas as a Promoter to Make Coated Slow-release Fertilizer. Chemical Engineering Journal Advances, 8, 100189. https://doi.org/https://doi.org/10.1016/j.ceja.2021.100189

Lu, K., Abouzeid, R., Wu, Q., Chen, Q., & Liu, S. (2024). Hydrogel nanocomposite based slow-release urea fertilizer: formulation, structure, and release behavior. Giant, 18, 100270. https://doi.org/https://doi.org/10.1016/j.giant.2024.100270

Dun, C., Wang, R., Mi, K., Zhang, Y., Zhang, H., Cui, P., Guo, Y., Lu, H., & Zhang, H. (2024). One-time application of controlled-release bulk blending fertilizer enhances yield, quality and photosynthetic efficiency in late japonica rice. Journal of Integrative Agriculture, 23(11), 3672–3691. https://doi.org/https://doi.org/10.1016/j.jia.2023.10.007

Smolander, A., Martikainen, P. J., & Henttonen, H. M. (2022). Half-a-century effects of a slow-release nitrogen fertilizer, ureaformaldehyde, on stand growth and soil processes in a Scots pine stand. Forest Ecology and Management, 519, 120320. https://doi.org/https://doi.org/10.1016/j.foreco.2022.120320

Sofyane, A., Atlas, S., Lahcini, M., Vidović, E., Ameduri, B., & Raihane, M. (2024). Insights into hydrophobic (meth) acrylate polymers as coating for slow-release fertilizers to reduce nutrient leaching. Polymer Chemistry, 15(33), 3327–3340. https://doi.org/https://doi.org/10.1039/d4py00573b

Etminani-Esfahani, N., Rahmati, A., & Mansouri, O. (2025). Preparation of green hydrogel for slow-release urea and its positive effect on improving wheat yield under deficit irrigation conditions and remediation of soil. Industrial Crops and Products, 231, 121168. https://doi.org/https://doi.org/10.1016/j.indcrop.2025.121168

Wu, H., Cui, W., He, Y., Yu, J., Han, X., Peng, P., Huang, J., & He, J. (2025). Sustainable development of tannin-based slow-release nitrogen fertilizers from chestnut burrs: Synthesis, characterization and their effects on pakchoi growth. Industrial Crops and Products, 235, 121732. https://doi.org/https://doi.org/10.1016/j.indcrop.2025.121732

Khatun, M. R., Azad, M. A. K., & Mondal, M. I. H. (2025). Characterization and slow-release of urea fertilizer of hydrogel composites based on poly (vinyl alcohol)/sodium alginate/humic acid/citric acid. International Journal of Biological Macromolecules, 313, 144295. https://doi.org/https://doi.org/10.1016/j.ijbiomac.2025.144295

Jiang, S., Duan, Q., Ma, L., Song, Y., Xie, H., Liu, H., Chen, L., & Yu, L. (2024). Preparation and characterization of slow-release fertilizer through coating acrylate epoxidized soybean oil. Environmental Technology & Innovation, 34, 103626. https://doi.org/https://doi.org/10.1016/j.eti.2024.103626

Cahyaningrum, S. E., Lusiana, R. A., Natsir, T. A., Muhaimin, F. I., Wardana, A. P., Purnamasari, A. P., & Misran, M. Bin. (2024). Synthesis and characterization of chitosan-modified membrane for urea slow-release fertilizers. Heliyon, 10(15). https://doi.org/https://doi.org/10.1016/j.heliyon.2024.e34981

Zafar, N., Niazi, M. B. K., Sher, F., Khalid, U., Jahan, Z., Shah, G. A., & Zia, M. (2021). Starch and polyvinyl alcohol encapsulated biodegradable nanocomposites for environment friendly slow release of urea fertilizer. Chemical Engineering Journal Advances, 7, 100123. https://doi.org/https://doi.org/10.1016/j.ceja.2021.100123

Wei, Q., Zhang, L., Chen, J., Tong, Z., Zhou, X., Shao, L., Wu, Z., Zhan, P., Wang, F., & Liu, N. (2021). Solvent-free coating of crosslinked and hydrophobic lignin-based biocomposite for slow-release fertilizer. Polymer Testing, 102, 107335. https://doi.org/https://doi.org/10.1016/j.polymertesting.2021.107335

Nandal, K., Vaid, V., Saini, P., Sharma, R. K., Joshi, V., Jindal, R., & Mittal, H. (2025). Synthesis and characterization of κ-carrageenan and guar gum-based hydrogels for controlled release fertilizers: Optimization, release kinetics, and agricultural impact. Industrial Crops and Products, 225, 120587. https://doi.org/https://doi.org/10.1016/j.indcrop.2025.120587

Cancellier, E. L., Degryse, F., da Silva, R. C., Baird, R., Guelfi, D., & McLaughlin, M. J. (2025). Bio-based polyurethane coatings for controlled-release phosphorus fertilizers: Synthesis, characterization and effect on P use efficiency. Science of The Total Environment, 1000. https://doi.org/https://doi.org/10.1016/j.scitotenv.2025.180403

He, C., Huang, Y., Shao, Q., Kong, F., Zheng, D., & Qiu, X. (2025). Lignin-based ternary composite hydrogel for slow-release of fertilizer and soil water retention. International Journal of Biological Macromolecules, 296, 139679. https://doi.org/https://doi.org/10.1016/j.ijbiomac.2025.139679

Guo, R., Gong, W., Qi, S., Xu, J., Shang, Z., & Joseph, S. (2025). Biochar-based urea enhances nitrogen use efficiency and mitigates nitrogen leaching in greenhouse vegetable production. Environmental Technology & Innovation, 38, 104104. https://doi.org/https://doi.org/10.1016/j.eti.2025.104104

Cheng, J., Sun, Q., & Liu, L. (2025). Modified biochar-immobilized Bacillus spp. for the release of nutrients and its response to soil microbial community activity and structure. Industrial Crops and Products, 225, 120466. https://doi.org/https://doi.org/10.1016/j.indcrop.2025.120466

Zhao, C., Xu, J., Bi, H., Shang, Y., & Shao, Q. (2023). A slow-release fertilizer of urea prepared via biochar-coating with nano-SiO2-starch-polyvinyl alcohol: Formulation and release simulation. Environmental Technology & Innovation, 32, 103264. https://doi.org/https://doi.org/10.1016/j.eti.2023.103264

Chen, L., Huang, X., Sun, S., Zhuo, Y., Li, C., & Sun, C. (2025a). An effective biochar-based slow-release fertilizer for promoting the formation of bioavailable P-phase and the slow-release performance of nutrients by the addition of attapulgite. Journal of Environmental Chemical Engineering, 13. https://doi.org/https://doi.org/10.1016/j.jece.2025.118240

Zhao, X., Lu, J., Jiang, S., Fu, C., Li, Y., Xiang, H., Lu, R., Zhu, J., & Yu, B. (2025). Enhancing slow-release performance of biochar-based fertilizers with kaolinite-infused polyvinyl alcohol/starch coating: From fertilizer development to field application. International Journal of Biological Macromolecules, 302, 140665. https://doi.org/https://doi.org/10.1016/j.ijbiomac.202

Villada, E., Velasquez, M., Gómez, A. M., Correa, J. D., Saldarriaga, J. F., López, J. E., & Tamayo, A. (2024). Combining anaerobic digestion slurry and different biochars to develop a biochar-based slow-release NPK fertilizer. Science of The Total Environment, 927, 171982. https://doi.org/https://doi.org/10.1016/j.scitotenv.2024.171982

Meier, S., de Souza Campos, P. M., Palma-Millanao, R., Rojas, N., González, M.-E., Muñoz, S., Ondrasek, G., Naser, K., Hirzel, J., & Seguel, A. (2025). Biochar-based controlled-release ammonium phosphate fertilizer: Synthesis and impact on soil nutrient dynamics, wheat growth, and yield under controlled conditions. Environmental Technology & Innovation, 39, 104269. https://doi.org/https://doi.org/10.1016/j.eti.2025.104269

Li, Y., Chi, D., Sun, Y., Wang, X., Tan, M., Guan, Y., Wu, Q., & Zhou, H. (2024). Synthesis of struvite-enriched slow-release fertilizer using magnesium-modified biochar: Desorption and leaching mechanisms. Science of The Total Environment, 926, 172172. https://doi.org/https://doi.org/10.1016/j.scitotenv.2024.172172

Griffiths, G., Czachor, M. M., Dimond, J., Laycock, C. J., & Guwy, A. J. (2024). Enhanced retention and clean dewatering of nutrients in a slow-release organic silicon fertilizer. Cell Reports Physical Science, 5(2). https://doi.org/https://doi.org/10.1016/j.xcrp.2024.101823

Wibisono, Y., Ummah, S. R., Hermanto, M. B., Djoyowasito, G., & Noviyanto, A. (2024). Slow-release hydroxyapatite fertilizer from crab shells waste for sustainable crop production. Results in Engineering, 21, 101781. https://doi.org/https://doi.org/10.1016/j.rineng.2024.101781

Wu, M., Cheng, Y., Dong, C., Zhao, X., Wang, Z., Xiang, H., Cai, Y., Li, Y., Fu, H., & Yu, B. (2025). Slow-release urea fertilizer with polymer and biochar-based organic coatings: Design, field trials and global economic implications. Industrial Crops and Products, 235, 121738. https://doi.org/https://doi.org/10.1016/j.indcrop.2025.121738

Wu, M., Lu, J., Zhang, Y., Ling, Z., Lu, R., Zhu, J., Li, Y., Cai, Y., Xiang, H., & Zhang, Z. (2025). Chitosan hydrogel membrane embedded by metal-modified biochars for slow-release fertilizers. International Journal of Biological Macromolecules, 306, 141296. https://doi.org/https://doi.org/10.1016/j.ijbiomac.2025.141296

Endo, A. (2024). Dune soil nitrogen leaching for Chinese-yam cultivation: Impact of microbe-decomposable slow-release fertilizer. Heliyon, 10(9). https://doi.org/https://doi.org/10.1016/j.heliyon.2024.e30545