Main Article Content
Abstract
Peningkatan kebutuhan pokok masyarakat mendorong konversi lahan pertanian menjadi kawasan permukiman, sehingga mengurangi area produksi pangan. Kondisi ini menuntut inovasi teknologi budidaya untuk meningkatkan efisiensi pemupukan dan produktivitas tanaman pada lahan yang semakin terbatas. Penelitian ini bertujuan mengkaji karakteristik zeolit alam Ende yang diaktivasi secara fisika dan kimia menggunakan larutan NaOH pada konsentrasi 1M, 3M, dan 5M sebagai carrier pupuk lepas lambat, serta menganalisis pengaruhnya terhadap produktivitas tanaman kangkung darat. Metode penelitian menggunakan pendekatan kuantitatif model eksperimen dengan analisis MANOVA (Multivariate Analysis of Variance) untuk melihat perbedaan antarperlakuan secara simultan. Hasil penelitian menunjukkan bahwa media tanam berbasis zeolit teraktivasi memberikan peningkatan pertumbuhan dan produktivitas kangkung darat yang signifikan dibandingkan kontrol tanpa zeolit. Aktivasi menggunakan larutan basa terbukti dapat meningkatkan kapasitas tukar ion zeolit sehingga mampu melepaskan nutrisi secara bertahap sesuai kebutuhan tanaman. Temuan ini mengindikasikan bahwa modifikasi zeolit alam Ende berpotensi menjadi teknologi pemupukan ramah lingkungan yang efektif untuk sistem budidaya hortikultura, sekaligus mendukung keberlanjutan pertanian di tengah keterbatasan lahan.
Keywords
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Copyright (c) 2025 Sanherip Laalobang, Gregorio Antonny Bani, Arnoldus Laka Atson, Mario Donald Bani

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References
- Abdelwahab, O., & Thabet, W. M. (2023). Natural zeolites and zeolite composites for heavy metal removal from contaminated water and their applications in aquaculture Systems: A review. Egyptian Journal of Aquatic Research, 49(4), 431–443. https://doi.org/10.1016/j.ejar.2023.11.004
- Al Muttaqii, M. (2021). Pengaruh Variasi Konsentrasi NaOH Pada Zeolit Alam Lampung Terhadap Produk Silika. Jurnal Riset Teknologi Industri, 15(2), 393. https://doi.org/10.26578/jrti.v15i2.6950
- Amin, M., & Djabri, M. Al. (2017). Pengaruh Pemberian Zeolit dan Pupuk Kandang Sapi terhadap Pertumbuhan dan Hasil Bawang Merah di Kabupaten Brebes. Prosiding Seminar Nasional, (1979), 361–371.
- An Naafi, A. N., Tjahjanto, R. T., & Prananto, Y. P. (2023). Effect of NaOH Concentration Toward the Characteristics of Activated Natural Zeolite from Blitar – East Java. Jurnal Kimia Sains Dan Aplikasi, 26(2), 50–56. https://doi.org/10.14710/jksa.26.2.50-56
- Azhari, N. J., Mardiana, S., & Kadja, G. T. M. (2023). ZSM-48 zeolites with controllable mesopore formation: synthesis, characterization, and catalytic performance. Chemical Engineering Journal Advances, 16(July), 100533. https://doi.org/10.1016/j.ceja.2023.100533
- Azurianti, A., Wulansari, R., Athallah, F. N. F., & Prijono, S. (2022). The Relation Study of Soil Nutrient to Productivity of productive Tea Plants in Pagar Alam Tea Plantation, South Sumatra. Jurnal Tanah Dan Sumberdaya Lahan, 9(1), 153–161. https://doi.org/10.21776/ub.jtsl.2022.009.1.17
- Bani, G. A. (2022). PEMANFAATAN ZEOLIT ALAM ENDE UNTUK MENINGKATKAN KADAR HARA PUPUK ORGANIK. Jurnal JAPPRI, 4(2), 28–45. https://doi.org/https://doi.org/10.55542/jappri.v4i2.361
- Cruz, T. J. T., Melo, M. I. S., & Pergher, S. (2020). Optimization of parameters and methodology for the synthesis of LTA-type zeolite using light coal ash. Applied Sciences (Switzerland), 10(20), 1–11. https://doi.org/10.3390/app10207332
- Gaol, S. K. L., Hanum, H., & Sitanggang, G. (2014). Pemberian zeolit dan pupuk kalium untuk meningkatkan ketersediaan hara K dan pertumbuhan kedelai di Entisol. Jurnal Online Agroteknologi, 2(3), 1151–1159.
- Ginting, A. B., Siti, A., Noviarty, Yanlinastuti, Nugroho, A., & Boybul. (2021). Natural zeolite as a replacement for resin in the cation exchange process of cesium on post-irradiated nuclear fuel. Nukleonika, 66(1), 11–19. https://doi.org/10.2478/nuka-2021-0002
- Harahap, B. H., Abidin, H. Z., Utoyo, H., Djumhana, D., & Yuniarni, R. (2015). Prospect of Mineral Deposits in the Central Flores Island, Eastern Indonesia Prospek Cebakan Mineral Di Pulau Flores Bagian Tengah, Indonesia Timur. Jurnal Geologi Dan Sumberdaya Mineral, 16(1), 1–13.
- Hertati, L., & Ifansyah, H. (2022). Pengaruh Pemberian Zeolit Alam Teraktivasi terhadap Sifat Kimia Tanah Podsolik. Acta Solum, 1(November), 21–27.
- Jarosz, R., Szerement, J., Gondek, K., & Mierzwa-Hersztek, M. (2022). The use of zeolites as an addition to fertilisers – A review. CATENA, 213, 106125. https://doi.org/https://doi.org/10.1016/j.catena.2022.106125
- Kurniasari, L., Djaeni, M., & Purbasari, A. (2011). Aktivasi Zeolit Alam Sebagai Adsorben Pada Alat Pengering Bersuhu Rendah. Reaktor, 13(3), 178. https://doi.org/10.14710/reaktor.13.3.178-184
- Legese, W., M. Taddesse, A., Kibret, K., & Wogi, L. (2024). Effects of natural and modified zeolite based composite fertilizers on slow release and nutrient use efficiency. Heliyon, 10(3), e25524. https://doi.org/10.1016/j.heliyon.2024.e25524
- Lestariningsih, D., & Kurniawan, T. (2023). Transformation of Natural Zeolites by the Fusion-Hydrothermal Method for Ammonium Adsorption. World Chemical Engineering Journal, 7(1), 1–5.
- Li, J., Gao, M., Yan, W., & Yu, J. (2022). Regulation of the Si/Al ratios and Al distributions of zeolites and their impact on properties. Chemical Science, 14(8), 1935–1959. https://doi.org/10.1039/d2sc06010h
- Mamytbekov, G. K., Anatol, D., & Milts, O. S. (2024). Polymer – Zeolite Composites : Synthesis , Characterization and Application.
- Mondal, M., Biswas, B., Garai, S., Sarkar, S., Banerjee, H., Brahmachari, K., … Hossain, A. (2021). Zeolites Enhance Soil Health, Crop Productivity and Environmental Safety. Agronomy, 11(448), 1–29.
- Narka, I. W., Kusmawati, T., & Merit, I. N. (2017). Penerapan kombinasi pupuk organik dan pupuk kimia untuk memperbaiki kualitas tanah sawah di subak tibubiyu kecamatan kerambitan kabupaten tabanan. Buletin Udayana Mengabdi, 16(3), 238–243.
- Narulita, A. F., Widodo, R. A., & Afany, M. R. (2023). Effects of Bokashi Fertilizer and Zeolite as Soil Conditioners for the Availability of Nitrogen of Regosol Soil. Jurnal Tanah Dan Sumberdaya Lahan, 10(2), 245–253. https://doi.org/10.21776/ub.jtsl.2023.010.2.08
- Neolaka, Y. A. B., Lawa, Y., Naat, J., Riwu, A. A. P., Mango, A. W., Darmokoesoemo, H., … Kusuma, H. S. (2022). Efficiency of activated natural zeolite-based magnetic composite (ANZ-Fe3O4) as a novel adsorbent for removal of Cr(VI) from wastewater. Journal of Materials Research and Technology, 18, 2896–2909. https://doi.org/10.1016/j.jmrt.2022.03.153
- Prihatin, R. B. (2016). Alih Fungsi Lahan Di Perkotaan (Studi Kasus Di Kota Bandung Dan Yogyakarta). Jurnal Aspirasi, 6(2), 105–118. https://doi.org/10.22212/aspirasi.v6i2.507
- Rahmadani, S., Nurrochmad, F., & Sujono, J. (2020). Analisis Sistem Pemberian Air Terhadap Tanah Sawah Berbahan Organik. Jurnal Pendidikan Teknik Bangunan Dan Sipil, 6(2), 66–75.
- Rajiman, R., Yekti, A., & Munambar, S. (2021). the Effect of Zeolite Dose on the Characteristics of Soil and Red Chili Yields in Sub-Optimal Lands of Coastal. Jurnal Penelitian Pertanian Terapan, 21(2), 99–107. https://doi.org/10.25181/jppt.v21i2.2009
- Riyadh, M. I. (2015). Analysis of Farmers Term of Trade of Crops Commodities in North Sumatra. Jurnal Ekonomi & Kebijakan Publik, 6(1), 17–32.
- Roidah, I. S. (2013). Manfaat Penggunaan Pupuk Organik Untuk Kesuburan Tanah. 1(1).
- Rosadi, A. H. Y. (2015). Kebijakan Pemupukan Berimbang untuk Meningkatkan Ketersediaan Pangan Nasional. Pangan, 24(1), 8.
- Sazali, N., Harun, Z., & Sazali, N. (2024). Effectiveness of Zeolite [LTA] amendment in improving the growth of cherry tomato (Solanum lycopersicum) and its physicochemical properties of soil. Journal of the Australian Ceramic Society. https://doi.org/10.1007/s41779-024-01105-8
- Senila, M., & Cadar, O. (2024). Modification of natural zeolites and their applications for heavy metal removal from polluted environments: Challenges, recent advances, and perspectives. Heliyon, 10(3), e25303. https://doi.org/10.1016/j.heliyon.2024.e25303
- Soltanian, S., Lee, C. L., & Lam, S. S. (2020). A review on the role of hierarchical zeolites in the production of transportation fuels through catalytic fast pyrolysis of biomass. Biofuel Research Journal, 7(3), 1217–1234. https://doi.org/10.18331/BRJ2020.7.3.5
- Sudirja, R., Rosniawaty, S., Setiawan, A., & Yunianto, R. I. (2016). Pengaruh Formula Pupuk Urea-Zeolit-Arangaktif terhadap pH, N-total, KTK tanah dan Residu Pb pada Tanah Tercemar Limbah Industri. SoilREns, 14(1), 16–22. https://doi.org/10.24198/soilrens.v14i1.9270
- Sufriadin, Fuad Bawazir, Sri Widodo, M. H. (2022). Utilization of Solid Waste PT Semen Bosowa as Zeolite for Industrial Waste Water in South Sulawesi Utilization of Solid Waste PT Semen Bosowa as Zeolite for Industrial Waste Water in South Sulawesi. Jurnal Geomine, 10(3), 270–279. https://doi.org/10.1088/1755-1315/1117/1/012048
- Tanwongwan, W., Chollacoop, N., Faungnawakij, K., Assabumrungrat, S., Nakhanivej, P., & Eiad-ua, A. (2023). Peningkatan rasio Si/Al mengakibatkan ikatan kimia silanol (Si-O) lebih pendek daripada ikatan kimia alumina (Al-O), sehingga akan terjadi peningkatan luas permukaan dan ukuran saluran pori-pori zeolit. Heliyon, 9(8), e18772. https://doi.org/10.1016/j.heliyon.2023.e18772
- Van Vreeswijk, S. H., & Weckhuysen, B. M. (2022). Emerging analytical methods to characterize zeolite-based materials. National Science Review, 9(9), 047. https://doi.org/10.1093/nsr/nwac047
- Vasconcelos, A. A., Len, T., de Oliveira, A. de N., Costa, A. A. F. da, Souza, A. R. da S., Costa, C. E. F. da, … Nascimento, L. A. S. do. (2023). Zeolites: A Theoretical and Practical Approach with Uses in (Bio)Chemical Processes. Applied Sciences (Switzerland), 13(3). https://doi.org/10.3390/app13031897
- Wahyunto, & Dariah, A. (2014). Degradasi Lahan di Indonesia: Kondisi Existing, Karakteristik, dan Penyeragaman Definisi Mendukung Gerakan Menuju Satu Peta. Jurnal Sumberdaya Lahan, 8(2), 81–93. https://doi.org/10.2018/jsdl.v8i2.6470
- Yuniarti, A., Solihin, E., & Arief Putri, A. T. (2020). Aplikasi pupuk organik dan N, P, K terhadap pH tanah, P-tersedia, serapan P, dan hasil padi hitam (Oryza sativa L.) pada inceptisol. Kultivasi, 19(1), 1040. https://doi.org/10.24198/kultivasi.v19i1.24563
- Yusmayani, M. (2019). Analisis Kadar Nitrogen Pada Pupuk Urea, Pupuk Cair Dan Pupuk Kompos Dengan Metode Kjeldahl. Amina, 1(1), 28–34. https://doi.org/10.22373/amina.v1i1.11
- Zaharah, T. A., Aprilianti, W., & Wahyuni, N. (2023). Adsorpsi Ion Besi Pada Lindi Menggunakan Zeolit Alam Teraktivasi Asam Klorida (HCl). Jurnal Teknologi Lingkungan Lahan Basah, 11(2), 571. https://doi.org/10.26418/jtllb.v11i2.66164
- Zainuddin., Z., & Jufri, Y. (2019). Evaluasi Ketersediaan Unsur Hara Fosfor (P) pada Lahan Sawah Intensif Kecamatan Sukamakmur Kabupaten Aceh Besar. JURNAL ILMIAH MAHASISWA PERTANIAN, 4(November), 603–609.
References
Abdelwahab, O., & Thabet, W. M. (2023). Natural zeolites and zeolite composites for heavy metal removal from contaminated water and their applications in aquaculture Systems: A review. Egyptian Journal of Aquatic Research, 49(4), 431–443. https://doi.org/10.1016/j.ejar.2023.11.004
Al Muttaqii, M. (2021). Pengaruh Variasi Konsentrasi NaOH Pada Zeolit Alam Lampung Terhadap Produk Silika. Jurnal Riset Teknologi Industri, 15(2), 393. https://doi.org/10.26578/jrti.v15i2.6950
Amin, M., & Djabri, M. Al. (2017). Pengaruh Pemberian Zeolit dan Pupuk Kandang Sapi terhadap Pertumbuhan dan Hasil Bawang Merah di Kabupaten Brebes. Prosiding Seminar Nasional, (1979), 361–371.
An Naafi, A. N., Tjahjanto, R. T., & Prananto, Y. P. (2023). Effect of NaOH Concentration Toward the Characteristics of Activated Natural Zeolite from Blitar – East Java. Jurnal Kimia Sains Dan Aplikasi, 26(2), 50–56. https://doi.org/10.14710/jksa.26.2.50-56
Azhari, N. J., Mardiana, S., & Kadja, G. T. M. (2023). ZSM-48 zeolites with controllable mesopore formation: synthesis, characterization, and catalytic performance. Chemical Engineering Journal Advances, 16(July), 100533. https://doi.org/10.1016/j.ceja.2023.100533
Azurianti, A., Wulansari, R., Athallah, F. N. F., & Prijono, S. (2022). The Relation Study of Soil Nutrient to Productivity of productive Tea Plants in Pagar Alam Tea Plantation, South Sumatra. Jurnal Tanah Dan Sumberdaya Lahan, 9(1), 153–161. https://doi.org/10.21776/ub.jtsl.2022.009.1.17
Bani, G. A. (2022). PEMANFAATAN ZEOLIT ALAM ENDE UNTUK MENINGKATKAN KADAR HARA PUPUK ORGANIK. Jurnal JAPPRI, 4(2), 28–45. https://doi.org/https://doi.org/10.55542/jappri.v4i2.361
Cruz, T. J. T., Melo, M. I. S., & Pergher, S. (2020). Optimization of parameters and methodology for the synthesis of LTA-type zeolite using light coal ash. Applied Sciences (Switzerland), 10(20), 1–11. https://doi.org/10.3390/app10207332
Gaol, S. K. L., Hanum, H., & Sitanggang, G. (2014). Pemberian zeolit dan pupuk kalium untuk meningkatkan ketersediaan hara K dan pertumbuhan kedelai di Entisol. Jurnal Online Agroteknologi, 2(3), 1151–1159.
Ginting, A. B., Siti, A., Noviarty, Yanlinastuti, Nugroho, A., & Boybul. (2021). Natural zeolite as a replacement for resin in the cation exchange process of cesium on post-irradiated nuclear fuel. Nukleonika, 66(1), 11–19. https://doi.org/10.2478/nuka-2021-0002
Harahap, B. H., Abidin, H. Z., Utoyo, H., Djumhana, D., & Yuniarni, R. (2015). Prospect of Mineral Deposits in the Central Flores Island, Eastern Indonesia Prospek Cebakan Mineral Di Pulau Flores Bagian Tengah, Indonesia Timur. Jurnal Geologi Dan Sumberdaya Mineral, 16(1), 1–13.
Hertati, L., & Ifansyah, H. (2022). Pengaruh Pemberian Zeolit Alam Teraktivasi terhadap Sifat Kimia Tanah Podsolik. Acta Solum, 1(November), 21–27.
Jarosz, R., Szerement, J., Gondek, K., & Mierzwa-Hersztek, M. (2022). The use of zeolites as an addition to fertilisers – A review. CATENA, 213, 106125. https://doi.org/https://doi.org/10.1016/j.catena.2022.106125
Kurniasari, L., Djaeni, M., & Purbasari, A. (2011). Aktivasi Zeolit Alam Sebagai Adsorben Pada Alat Pengering Bersuhu Rendah. Reaktor, 13(3), 178. https://doi.org/10.14710/reaktor.13.3.178-184
Legese, W., M. Taddesse, A., Kibret, K., & Wogi, L. (2024). Effects of natural and modified zeolite based composite fertilizers on slow release and nutrient use efficiency. Heliyon, 10(3), e25524. https://doi.org/10.1016/j.heliyon.2024.e25524
Lestariningsih, D., & Kurniawan, T. (2023). Transformation of Natural Zeolites by the Fusion-Hydrothermal Method for Ammonium Adsorption. World Chemical Engineering Journal, 7(1), 1–5.
Li, J., Gao, M., Yan, W., & Yu, J. (2022). Regulation of the Si/Al ratios and Al distributions of zeolites and their impact on properties. Chemical Science, 14(8), 1935–1959. https://doi.org/10.1039/d2sc06010h
Mamytbekov, G. K., Anatol, D., & Milts, O. S. (2024). Polymer – Zeolite Composites : Synthesis , Characterization and Application.
Mondal, M., Biswas, B., Garai, S., Sarkar, S., Banerjee, H., Brahmachari, K., … Hossain, A. (2021). Zeolites Enhance Soil Health, Crop Productivity and Environmental Safety. Agronomy, 11(448), 1–29.
Narka, I. W., Kusmawati, T., & Merit, I. N. (2017). Penerapan kombinasi pupuk organik dan pupuk kimia untuk memperbaiki kualitas tanah sawah di subak tibubiyu kecamatan kerambitan kabupaten tabanan. Buletin Udayana Mengabdi, 16(3), 238–243.
Narulita, A. F., Widodo, R. A., & Afany, M. R. (2023). Effects of Bokashi Fertilizer and Zeolite as Soil Conditioners for the Availability of Nitrogen of Regosol Soil. Jurnal Tanah Dan Sumberdaya Lahan, 10(2), 245–253. https://doi.org/10.21776/ub.jtsl.2023.010.2.08
Neolaka, Y. A. B., Lawa, Y., Naat, J., Riwu, A. A. P., Mango, A. W., Darmokoesoemo, H., … Kusuma, H. S. (2022). Efficiency of activated natural zeolite-based magnetic composite (ANZ-Fe3O4) as a novel adsorbent for removal of Cr(VI) from wastewater. Journal of Materials Research and Technology, 18, 2896–2909. https://doi.org/10.1016/j.jmrt.2022.03.153
Prihatin, R. B. (2016). Alih Fungsi Lahan Di Perkotaan (Studi Kasus Di Kota Bandung Dan Yogyakarta). Jurnal Aspirasi, 6(2), 105–118. https://doi.org/10.22212/aspirasi.v6i2.507
Rahmadani, S., Nurrochmad, F., & Sujono, J. (2020). Analisis Sistem Pemberian Air Terhadap Tanah Sawah Berbahan Organik. Jurnal Pendidikan Teknik Bangunan Dan Sipil, 6(2), 66–75.
Rajiman, R., Yekti, A., & Munambar, S. (2021). the Effect of Zeolite Dose on the Characteristics of Soil and Red Chili Yields in Sub-Optimal Lands of Coastal. Jurnal Penelitian Pertanian Terapan, 21(2), 99–107. https://doi.org/10.25181/jppt.v21i2.2009
Riyadh, M. I. (2015). Analysis of Farmers Term of Trade of Crops Commodities in North Sumatra. Jurnal Ekonomi & Kebijakan Publik, 6(1), 17–32.
Roidah, I. S. (2013). Manfaat Penggunaan Pupuk Organik Untuk Kesuburan Tanah. 1(1).
Rosadi, A. H. Y. (2015). Kebijakan Pemupukan Berimbang untuk Meningkatkan Ketersediaan Pangan Nasional. Pangan, 24(1), 8.
Sazali, N., Harun, Z., & Sazali, N. (2024). Effectiveness of Zeolite [LTA] amendment in improving the growth of cherry tomato (Solanum lycopersicum) and its physicochemical properties of soil. Journal of the Australian Ceramic Society. https://doi.org/10.1007/s41779-024-01105-8
Senila, M., & Cadar, O. (2024). Modification of natural zeolites and their applications for heavy metal removal from polluted environments: Challenges, recent advances, and perspectives. Heliyon, 10(3), e25303. https://doi.org/10.1016/j.heliyon.2024.e25303
Soltanian, S., Lee, C. L., & Lam, S. S. (2020). A review on the role of hierarchical zeolites in the production of transportation fuels through catalytic fast pyrolysis of biomass. Biofuel Research Journal, 7(3), 1217–1234. https://doi.org/10.18331/BRJ2020.7.3.5
Sudirja, R., Rosniawaty, S., Setiawan, A., & Yunianto, R. I. (2016). Pengaruh Formula Pupuk Urea-Zeolit-Arangaktif terhadap pH, N-total, KTK tanah dan Residu Pb pada Tanah Tercemar Limbah Industri. SoilREns, 14(1), 16–22. https://doi.org/10.24198/soilrens.v14i1.9270
Sufriadin, Fuad Bawazir, Sri Widodo, M. H. (2022). Utilization of Solid Waste PT Semen Bosowa as Zeolite for Industrial Waste Water in South Sulawesi Utilization of Solid Waste PT Semen Bosowa as Zeolite for Industrial Waste Water in South Sulawesi. Jurnal Geomine, 10(3), 270–279. https://doi.org/10.1088/1755-1315/1117/1/012048
Tanwongwan, W., Chollacoop, N., Faungnawakij, K., Assabumrungrat, S., Nakhanivej, P., & Eiad-ua, A. (2023). Peningkatan rasio Si/Al mengakibatkan ikatan kimia silanol (Si-O) lebih pendek daripada ikatan kimia alumina (Al-O), sehingga akan terjadi peningkatan luas permukaan dan ukuran saluran pori-pori zeolit. Heliyon, 9(8), e18772. https://doi.org/10.1016/j.heliyon.2023.e18772
Van Vreeswijk, S. H., & Weckhuysen, B. M. (2022). Emerging analytical methods to characterize zeolite-based materials. National Science Review, 9(9), 047. https://doi.org/10.1093/nsr/nwac047
Vasconcelos, A. A., Len, T., de Oliveira, A. de N., Costa, A. A. F. da, Souza, A. R. da S., Costa, C. E. F. da, … Nascimento, L. A. S. do. (2023). Zeolites: A Theoretical and Practical Approach with Uses in (Bio)Chemical Processes. Applied Sciences (Switzerland), 13(3). https://doi.org/10.3390/app13031897
Wahyunto, & Dariah, A. (2014). Degradasi Lahan di Indonesia: Kondisi Existing, Karakteristik, dan Penyeragaman Definisi Mendukung Gerakan Menuju Satu Peta. Jurnal Sumberdaya Lahan, 8(2), 81–93. https://doi.org/10.2018/jsdl.v8i2.6470
Yuniarti, A., Solihin, E., & Arief Putri, A. T. (2020). Aplikasi pupuk organik dan N, P, K terhadap pH tanah, P-tersedia, serapan P, dan hasil padi hitam (Oryza sativa L.) pada inceptisol. Kultivasi, 19(1), 1040. https://doi.org/10.24198/kultivasi.v19i1.24563
Yusmayani, M. (2019). Analisis Kadar Nitrogen Pada Pupuk Urea, Pupuk Cair Dan Pupuk Kompos Dengan Metode Kjeldahl. Amina, 1(1), 28–34. https://doi.org/10.22373/amina.v1i1.11
Zaharah, T. A., Aprilianti, W., & Wahyuni, N. (2023). Adsorpsi Ion Besi Pada Lindi Menggunakan Zeolit Alam Teraktivasi Asam Klorida (HCl). Jurnal Teknologi Lingkungan Lahan Basah, 11(2), 571. https://doi.org/10.26418/jtllb.v11i2.66164
Zainuddin., Z., & Jufri, Y. (2019). Evaluasi Ketersediaan Unsur Hara Fosfor (P) pada Lahan Sawah Intensif Kecamatan Sukamakmur Kabupaten Aceh Besar. JURNAL ILMIAH MAHASISWA PERTANIAN, 4(November), 603–609.
