Abstract
Peat soil amelioration has important role on improvement of soil peat fertility such as on increasing soil pH, reducing organic acid and toxic ions, and also increasing nutrients availability. Soil amelioration with polyvalent cations (Fe Al Cu Zn) namely slag, lateritic soils, and river mud are effectively reducing harmful effect of phenolic acid. The objectives of the study were to determine the effect of soil amelioration on peat soil chemical properties, optimum temperature amelioran tras and dolomite to increase Si concentration in peat soil, also to determine the effect of soil amelioration on increasing crop productivity (both biomass and yield). The study was consisted of two sets of experiments, namely soil incubation in the laboratory and greenhouse experiment with 4 replications of CRD (complete randomized design) plot design. The result of the study showed that the application of slag and dolomite are significantly different to increase pH, base saturation, and (Ca, Mg) content, meanwhile slag application was more complex and stable on improving chemical properties of peat soil. Slag was also improving pH, KB, and Ca, Fe content as well as silica and ash. Tras and dolomite burning were not significantly different on increasing silica in peat soil. Slag application was significantly increased both dried crop biomass and yield on rice. The best ameliorant was slag compared to tras, dolomite, and mixed tras dolomit with slag.Keywords: Ameliorant, organic acids, paddy, peat soil
Highlights
Response of Maize (Zea mays L.) Lamuru FM Variety with Fertilized N, P, and K in North Isimu Vertisols of Gorontalo Regency
difficult found by farmer
The objective of this research was to study the respons of N
Summary
Penelitian ini dilaksanakan sejak bulan Mei sampai Oktober 2006 di Desa Isimu Utara Kecamatan Tibawa Kabupaten Gorontalo. PG Gorontalo-Tolangohula dan analisis data di Laboratorium Fakultas Pertanian Universitas Negeri Gorontalo. Menurut Joseph (2005), famili tanah di lokasi penelitian adalah Udic Pellusterts, sangat halus, smektitik, isohipertermik yang berkembang dari bahan induk tonalit kapur. Mineral liat yang dominan pada tanah ini adalah smektit tanpa kaolinit dengan muatan tergantung pH rendah. Pada tanah berbahan induk tonalit kapur, nilai KTK pada pH 7,08 (KTK jumlah kation) melebihi KTK muatan permanen. Sifat ini terjadi karena pada pH yang lebih tinggi dari 6,5. Tingginya kejenuhan basa (KB) jumlah kation pada tanah berbahan induk tonalit kapur ini karena nilai EA (excangeable acidity) sangat rendah. Penelitian ini dirancang dengan menggunakan Rancangan Acak Kelompok (RAK) yang terdiri atas 5 (lima) perlakuan dan 3 (tiga) ulangan, sehingga memperoleh 15 (lima belas) satuan petak percobaan. Perlakuan dan takaran pupuk untuk penelitian lapangan
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
