THE EFFECT OF MICRO PARTICLE STEEL SLAG ON P-RETENTION AND PH ON ANDISOL
DOI:
https://doi.org/10.21831/jps.v24i2.20374Keywords:
Andisols, steel slag, micro particles, P retention, pHAbstract
This study was aimed at determining the effect of microparticles steel slag towards P retention, soil acidity in Andisol from Ciater, West Java. The research was conducted in November 2017 until January 2018. The andisol was taken from the PTPN XIII-Ciater Tea Plantation, Subang, while steel slag was obtained from PT. Krakatau Steel Indonesia. The study used a Completely Randomized Design consisting of 11 treatments and 3 replications so that the total of all treatments was 33 experimental polybags. The treatments given were 500 mesh steel slag and 1.7 µm steel slag. The incubation media were stored in the Soil Physics Laboratory of the Faculty of Agriculture at UNPAD for 2 months. The observed parameters were P retention analyzed by the Blakemore method and soil pH which was analyzed by the electrometry method. The results show that the steel slag microparticles significantly affected the reduction in P retention and increased pH in Andisols. The best dose for increasing the pH is 7%. Steel slag with a size of 1.7 µm is able to increase the pH from 4.53 to 7.99 after a two-month incubation.
PENGARUH PARTIKEL MIKRO TERAK BAJA TERHADAP RETENSI P DAN PH PADA ANDISOL
Penelitian ini bertujuan untuk mengetahui pengaruh pemberian partikel mikro terak baja terhadap retensi P, kemasaman tanah pada Andisol asal Ciater, Jawa Barat. Penelitian telah dilaksanakan pada bulan November 2017 sampai dengan Januari 2018. Andisol berasal dari Perkebunan Teh PTPN XIII-Ciater, Kabupaten Subang, sedangkan terak baja diperoleh dari PT. Krakatau Steel Indonesia. Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap yang terdiri dari 11 perlakuan dan 3 ulangan, sehingga total seluruh perlakuan adalah 33 polibeg percobaan. Perlakuan yang diberikan yaitu kontrol, terak baja ukuran 500 mesh dan terak baja ukuran 1,7 µm. Media inkubasi disimpan di Laboratorium Fisika Tanah Fakultas Pertanian UNPAD dan diinkubasikan selama 2 bulan.Parameter yang diamati adalah Retensi P dianalisis dengan metode Blakemore, dan pH tanah dianalisis dengan metode elektrometri.Hasil penelitian menunjukkan bahwa pemberian partikel mikro terak baja berpengaruh nyata terhadap penurunan retensi P dan peningkatan pH pada Andisol asal Ciater, Jawa Barat. Sedangkan dosis terbaik dalam meningkatkan pH yakni 7% terak baja dengan ukuran 1,7 µm mampu meningkatkan pH dari 4,53 menjadi 7,99 setelah dua bulan inkubasi.
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