Aplikasi Berbagai Bahan Organik dan Lama Inkubasi Terhadap Perubahan Beberapa Sifat Kimia Tanah Ultisol
Application of Various Organic Matter and Incubation Period to change some Chemical Properties of Ultisol Soil
DOI:
https://doi.org/10.32734/ja.v6i1.2558Keywords:
Incubation, Organic matter, Total-P, Ultisol, Bahan organik, Inkubasi, P-totalAbstract
The objective of this study is to determine the effect of some organic matter and incubation period
on the pH, C-organic, total-P, total -N and K-exchange on Ultisol. This research conducted in Soil
Science Laboratory, Faculty of Agriculture, University of North Sumatra. This study used
completely randomized design which consist of two factors with three replications. Factor I: organic
matter (B) ie : B0 (without organic matter), B1 (compost of Tithonia diversifolia 10g/pot), B2
(compost of durian skin 10g/pot), B3 (compost of oil palm empty f ruit bunch 10g/pot), B4 (chicken
manure 10g/pot), B5 (compost of Tithonia diversifolia 5g/pot + chicken manure 5g/pot), (compost
of durian skin 5g/pot + chicken manure 5g/pot), B7 (compost of oil palm empty fruit bunch 5g/pot +
chicken manure 5g/pot) and factor II : the incubation period (I), ie : I1 (three weeks incubation), I2
(four weeks incubat ion). The results showed that application compost of durian skin, Tithonia
diversifolia, and compost of oil palm empty fruit bunch significantly increased soil pH, C-organic,
total -P, total-N and K-exchange. The combination between compost of durian skin and chicken
manure significantly increased Ultisol soil pH.
Penelitian ini bertujuan untuk mengetahui pengaruh pemberian beberapa sumber bahan organik dan masa inkubasi terhadap pH, C-organik, N-total, P-total dan K-dd pada tanah Ultisol. Penelitian ini dilakukan di Laboratorium Ilmu Tanah, Fakultas Pertanian, Universitas Sumatera Utara. Rancangan yang digunakan pada penelitian ini adalah Rancangan Acak Lengkap Faktorial yang terdiri dari 2 faktor dengan 3 ulangan. Faktor I : bahan organik (B) yaitu : B0 (tanpa bahan organik), B1 (kompos Tithonia diversifolia 10g/pot), B2 (kompos kulit durian 10g/pot), B3 (kompos Tandan Kosong Kelapa Sawit/TKKS 10g/pot), B4 (pupuk kandang ayam 10g/pot), B5 (kompos Tithonia diversifolia 5g/pot + pupuk kandang ayam 5g/pot), (kompos kulit durian 5g/pot + pupuk kandang ayam 5g/pot), B7 (kompos TKKS 5g/pot + pupuk kandang ayam 5g/pot) dan Faktor II ialah lama inkubasi (I) yaitu : I1 (inkubasi 3 minggu) , I2 (inkubasi 4 minggu). Hasil penelitian menunjukkan aplikasi kompos kulit durian, Tithonia diversifolia dan tandan kosong kelapa sawit nyata meningkatkan pH tanah, C-organik, N-total, P-total dan K-dd tanah Ultisol . Kombinasi antara kompos kulit durian dengan pupuk kandang ayam nyata meningkatkan pH tanah Ultisol.
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