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All Journal Agrikultura Journal of Tropical Soils Agriprima : Journal of Applied Agricultural Sciences SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Agrotek Tropika Agritrop : Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science) J-ADIMAS (Jurnal Pengabdian kepada Masyarakat) ZIRAA'AH MAJALAH ILMIAH PERTANIAN Journal of Applied Agricultural Science and Technology Jalujur: Jurnal Pengabdian Masyarakat
Abduh, Andin Muhammad
Program Studi Ilmu Tanah, Fakultas Pertanian, Universitas Lambung Mangkurat
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing Public Health Social Sciences Other

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A Circular Bioresource Approach: Converting Water Hyacinth into Compost for Improved Soil Fertility and Yam Production in Tropical Wetlands Sari, Nukhak Nufita; Abduh, Andin Muhammad; Mulyawan, Ronny; Ellya, Hikma; Apriani, Rila Rahma; Nurlaila, Nurlaila; Masganti, Masganti; Yusran, Fadly Hairannoor
Jurnal Agrikultura Vol 37, No 1 (2026): April, 2026
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v37i1.67916

Abstract

Tropical wetland ecosystems face challenges due to acidic soils, poor drainage, and fluctuating water levels, limiting soil fertility and agricultural productivity. However, the abundant biomass of water hyacinth (Eichhornia crassipes) offers a potential in-situ organic resource that can be recycled through composting, supporting a circular nutrient approach by returning nutrients from aquatic environments to agricultural soils. The objective of this research was to evaluate the effects of composted water hyacinth on soil chemical properties and crop performance of the Alabio water yam (Dioscorea alata L.) grown in tropical freshwater swamps. Water hyacinth compost with a C/N ratio of 15.55 and enriched with essential nutrients was applied at three rates: 30, 35, and 40 ton/ha, using a randomized block design. Soil chemical properties and tuber yield were analyzed by ANOVA and LSD tests, and regression analysis was performed to identify the key factors influencing yield.  The compost significantly improved soil total-N, total-P, and available-P, while increasing soil organic-C and cation-exchange capacity. The highest tuber yield, 7.4 kg/m², was obtained at the 40 ton/ha compost rate, representing a 21% increase compared with the lowest rate. Regression analysis (R² = 0.904) confirmed that soil available phosphorus was the primary determinant of yield improvement. This research provides empirical evidence that water hyacinth compost amendment can simultaneously enhance soil fertility and yam yield in tropical wetland systems.
Perubahan Fraksi Kalium Tanah Sulfat Masam melalui Strategi Pengelolaan Air dan Substitusi Parsial NPK dengan Decanter solid Karisma Tia Krisba; Nukhak Nufita Sari; Andin Muhammad Abduh; Ronny Mulyawan
Agriprima : Journal of Applied Agricultural Sciences Vol 10 No 2 (2026): SEPTEMBER
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/agriprima.v10i2.818

Abstract

Peningkatan luas perkebunan kelapa sawit di Indonesia dapat meningkatkan volume limbah industri. Salah satu limbah yang dihasilkan adalah decanter solid, yang dapat menurunkan kualitas lingkungan. Disisi lain, decanter solid mengandung kalium (K), sehingga dapat dimanfaatkan sebagai pembenah tanah organik. Limbah ini dapat memperbaiki  lahan sulfat masam yang memiliki permasalahan seperti rendahnya ketersediaan dan efisiensi serapan hara. Unsur seperti K tidak tersedia akibat proses oksidasi-reduksi dan relatif mudah tercuci akibat KTK yang rendah. Tujuan penelitian ini untuk mengetahui pengaruh aplikasi decanter solid terhadap fraksi K pada tanah sulfat masam dengan teknik penggenangan, serta mengetahui efektivitasnya decanter solid dalam mensubstitusi NPK anorganik. Penelitian ini menggunakan rancangan acak lengkap (RAL), dua faktor yaitu pemupukan NPK dengan kombinasi decanter solid dan perbedaan penggenangan. Parameter tanah yang dianalisis K-tersedia menggunakan ekstrak NH4OAc pH 7 (1N), K-total menggunakan ekstrak HCl 25%, dan Serapan-K. Hasil penelitian mengindikasikan bahwa dinamika K pada tanah sulfat masam lebih ditentukan oleh input bahan organik dibandingkan kondisi hidrologi semata. Penggenangan tidak secara langsung memodifikasi fraksi K, namun berperan dalam mengubah respons tanaman terhadap K yang tersedia. Aplikasi decanter solid secara konsisten meningkatkan cadangan K tanah, khususnya pada fraksi K-total, yang mencerminkan perbaikan status hara jangka menengah. Lebih lanjut, respons serapan K menunjukkan adanya efek sinergis antara tingkat substitusi decanter solid dan kondisi penggenangan, yang mengindikasikan bahwa efisiensi pemanfaatan K tidak hanya bergantung pada ketersediaannya di tanah, tetapi juga pada interaksi proses biogeokimia yang dikendalikan oleh kondisi air.
Co-Authors Abdul Haris Aminuyati Andreani, Muhammad Angrela, Puput Anna Hairani Apriani, Rila R. Apriani, Rila Rahma Budiardi, Didi Ellya, Hikma Fadly Hairannoor Yusran Finastoari, Meldy Hairil Ifansyah Ismuhajaroh, Bhakti Nur Karisma Tia Krisba Latifah, Elok Nor M. Yogi Riyantama Isjoni Masganti Masganti Masganti Masganti Masganti Masganti Muhammad Rayhan Ghiffari Muhammad Saleh Mulyawan, Ronny Nurlaila Nurlaila Nurlaila Rila Rahma Apriani Rizqiana, Sista Ronny Mulyawan Rusmila Agustina Sabil, Muhammad Adma Saidy, Akhmad R. Sari, Nukhak Nufita Sari, Nukhak Nufitas Wahida Annisa Wahida Annisa