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All Journal Agrovigor: Jurnal Agroekoteknologi AGRIVITA, Journal of Agricultural Science Jurnal Agroekoteknologi Aceh Journal of Animal Science JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Jurnal Hilirisasi IPTEKS (JHI) Seminar Nasional Lahan Suboptimal Jurnal Agrotek Lestari Jurnal Agroplasma Jurnal Abdi Insani SELODANG MAYANG Jurnal Agro Indragiri Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Andalasian International Journal of Agricultural and Natural Sciences Journal of Science and Technology Jurnal Riset Perkebunan (JRP) Journal of Applied Agricultural Science and Technology Andalasian International Journal of Entomology Buletin Dharmas Andalas Agricultural Revolution Journal
Zahlul Ikhsan
Department Of Agroecotechnology, Agriculture Faculty, Universitas Andalas, West Sumatra, Indonesia
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Journal : Agricultural Revolution Journal

 1 
Dynamics of Phosphorus Sorption and Desorption in Ultisols Ameliorated with Humic Substances from Potential Ameliorants Amsar Maulana; Dewi Rezki; Irwan Darfis; Zahlul Ikhsan; Herviyanti Herviyanti
Agricultural Revolution Journal Vol. 1 No. 2 (2025): Agricultural Revolution Journal
Publisher : CIB Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64570/agrivolution.v1i2.32

Abstract

Ultisols have a very high P sorption capacity, which limits the availability of P to plants. Therefore, it is necessary to understand the P sorption-desorption mechanism after humic substances (HS) amelioration to improve fertilizer efficiency and land productivity. This study has examined the complexity of phosphorus fixation and the potential of HS in modifying the surface charge of Ultisols. This study used the batch equilibrium method and the Freundlich and Langmuir isotherm model approaches. Meanwhile, the surface charge characteristics of Ultisols, amended with humic substances (HS) from various potential ameliorants (control, HS-chicken manure, HS-black soldier fly, HS-wet decanter solid, and HS-peat), were evaluated using a completely randomized design with three replications. The HS from potential ameliorants significantly increases pH, PZC, electrical conductivity (EC), mineral and organic matter composition, CEC, and reduces potential redox (Eh), thereby increasing the soil's negative charge and buffering capacity. The HS—wet decanter solid and chicken manure were most effective, as they were proven to remove Al-exchange to unmeasurable levels through strong complexation between Al³⁺ and carboxylate and phenolic groups. The HS—wet decanter solid and chicken manure also drastically reduce P sorption and increase desorption through ligand competition and blocking of Al/Fe reactive sites, which resulted in increased P availability up to >600 mg kg-1 P2O5 at a concentration of 1000 mg L-1 P or 2290 mg kg⁻¹ P₂O₅ or 6.37g SP-36 per liter or 6.37 kg SP-36 per hectare for an application volume of 1,000 liters per hectare.
Co-Authors . Reflinaldon Adam Jorli Wong Adam Jorli Wong administrator admin Alfala Hakiki Alvin Niqmatull Akbar Amsar Maulana Anwar, Aswaldi Ardi Ardi Astuti Kurnianingsih Aulia Oktavia Aulia Oktavia Aulia Oktavia Aulia Oktavia Azahar, Nuráin Dandy Ahamefula Osibe Darfis, Irwan Dede Suhendra Delci Ariani Jasrani Deni Andisca Deni Andisca Dewi Rezki Dewi, Yulia Duma Putri Tama Edwin Edwin Edwin Edwin Edwin Edwin Eka Candra Lina Ekon Noper Nandes Elfi Yenny Yusuf Erise Anggraini Erise Anggraini, Erise Fadilla Ratib Fitri Yeni, Fitri Hakiki, Alfala Halimatus Syahdia Hasibuan Hasmiandy Hamid Herviyanti Herviyanti Hidrayani Hidrayani Hidrayani Hidrayani Hidrayani Hidrayani Hidrayani Indra Dwipa Intan Sari Intan Sari Irwin Mirza Umami Karjunita, Nike Kurniawati, Sholih Lailatun Najmi Marlin Sefrila Meisilva Erona Sitepu Mohd Zainudin, Nur Ain Izzati Moustafa Mohamed Sabry Bakry Muhammad Al-Ikhlas Muhammad Parikesit Wisnubroto Munzir Busniah Najmi, Lailatun Nofialdi, Nofialdi Nofrita Sandi Nordin, Nor Aisyah NOVRI NELLY Nurbailis Nurwijayanti Oktavia, Aulia Pradetia, Pradetia Purnama Devi Purnama Devi Putri, Nurweni Ratib, Fadilla Reflin Reflin Reza Tania Rina, Iswan Riyanti, Tia Ellisa Rizky Nanda Meilia Rosli , Muhamad Najmi Haikal Roza Yunita Rusdimansyah Rusdimansyah Rusdimansyah Safitri, Aisyah Sahra Wardi Salleh, Suhaida Schmidt, Stefan Sholih Kurniawati Sholih Kurniawati Sianturi, Willy Friddo Simbiring, Riki Suranta Sinaga, Tessia Masnita Siska Efendi Siti Hartati Yusida Saragih Siti Hilalliyah Sri Heriza Sri Wahyuni Stefan Schmidt Suryadi Suryadi Sutini Sutini Syahputri, Rispiza Tama, Duma Putri Tasari, Nurmelia Tata Sadori Teddy Alfandi Teddy Alfandi Tuty Hardianti UJANG KHAIRUL Varella Zahra Wan Ahmad Kamal, Wan Halimah As-Sa’adiah Willy Friddo Sianturi Winarto Winarto Winda Purnama Sari Wulan Kumala Sari Yaherwandi Yudi Triyanto Yulia Dewi Yulistriani, Yulistriani Yunisman Yunisman, Yunisman Yusniwati Yusniwati Yusof, Mohd Termizi Zahra, Varella Zinatal Hayati