Pengaruh Tepung Cangkang Kepiting Terhadap pH Tanah dan Al-dd Pada Tanah Ultisol
Effect of Crab Shell Powder on Soil pH and Al-dd on Ultsiol
DOI:
https://doi.org/10.32734/joa.v5i1.2335Keywords:
al-dd, c-organik, ph tanah, p tersedia, tepung cangkang kepiting, ultisolAbstract
Penelitian ini dilakukan di Laboratorium Kimia dan Kesuburan Tanah Fakultas Pertanian, Universitas Sumatera Utara, Medan pada bulan Maret 2016 sampai Mei 2016. Penelitian ini bertujuan untuk menetapkan masa inkubasi dan menentukan dosis terbaik pemberian tepung cangkang kepiting untuk meningkatkan pH tanah dan penjerapan aluminium dalam meningkatkan P tersedia tanah pada tanah Ultisol. Penelitian ini menggunakan Rancangan Acak Kelompok Non Faktorial dengan 3 ulangan. Faktor perlakuan dosis tepung cangkang kepiting dengan 8 perlakuan (0 ; 0,58 ; 1,08 ; 1,62 ; 2,16 ; 2,70 ; 3,24 dan 3,78 ton/ha). Hasil penelitian ini menunjukkan bahwa masa inkubasi berbeda nyata terhadap perubahan pH tanah dan Aldd tanah Ultisol dengan pemberian tepung cangkang kepiting pada 2 minggu masa inkubasi. Dosis pemberian tepung cangkang terbaik terhadap pH tanah, Aldd dan P tersedia tanah (3,24 ton/ha). Pemberian tepung cangkang kepiting tidak berpengaruh terhadap C – organik tanah Ultisol.
This research was conducted at the Laboratory of Chemistry and Soil Fertility Faculty of Agriculture, University of North Sumatra, Medan in March 2016 to May 2016. This research aims to establish the incubation period and determine the best dosage application crab’s shell powder to increase the soil pH and aluminum adsorption in increasing available soil P on Ultisol. This research used non factorial randomized block design with three replications. Factor dosage ofcrab’s shell powder with eight treatments (0; 0.58; 1.08; 1.62; 2.16; 2.70; 3.24 and 3.78 tonnes/ha). The results of this researchhas shown that the incubation periods was significantly different inexchanging soil pH and AlddUltisol with application crab’s shell powder at 2 weeks of incubation. The best dosage of crab shell powder on soil pH, Aldd and soil available P (3.24 tonnes/ha). Application crab shell powder add C - organic soil although not significantly different at Ultisol.
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