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All Journal Matematika dan Sains Teori dan Penelitian Pendidikan Dasar
Yuni Sri Rahayu
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Decision Sciences, Operations Research & Management Education Mathematics

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EFEKTIVITAS BAKTERI PELARUT POSFAT Bacillus subtilis Indriani Agustin, ; Yuliani, ; Yuni Sri Rahayu,
Matematika dan Sains Vol 16, No 1 (2009)
Publisher : Matematika dan Sains

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Abstract

The aims of research were to study the enfluence adding of B. subtilis in various concentration to the phosfat concentration and TPH value on the mining land and to find the optimum concentration of B. subtilis. This research was experiment with completely randomized design using one treatment namely the concentration of B. subtilis with four replications. Data obtained were analyzed discriptively. The results of research showed that adding of B. subtilis in various concentration enfluence the increasing of phosfat concentration, decreasing of TPH value and C/N ratio on the mining land. The optimum concentration of B. subtilis was 109 cell/mL.9 cell/mL.
METODE BIOSTIMULASI KOMPOS KACANG TANAH UNTUK BIOREMIDIASI TANAH TERCEMAR MINYAK BUMI Prasetyo Handrianto, ; Yuni Sri Rahayu, ; Yuliani,
Matematika dan Sains Vol 18, No 1 (2011)
Publisher : Matematika dan Sains

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The aims of research are to find the effect of the peanut compost in decreasing TPH value of soil polluted petroleum and to know the optimal compost concentration to increase the N concentration. This research used the group randomized design with one treatment, namely concentration of peanut compost. Results of research showed that concentration of N, P, K elements in peanut compost were 1.15 %, 0.10 % and 0.73 %, respectively. The peanut compost with concentration of 385 g/kg soil, 500 g/kg soil, and 636 g/kg soil gave effect to decrease TPH value and to increase the N elements in soil polluted petroleum.
PENGEMBANGAN PERANGKAT PEMBELAJARAN TERPADU MODEL NETWORKED UNTUK SISWA SEKOLAH DASAR Elymius Limbong, ; Prabowo, ; Yuni Sri Rahayu,
Teori dan Penelitian Pendidikan Dasar Vol 2, No 1 (2013)
Publisher : Teori dan Penelitian Pendidikan Dasar

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Co-Authors Elymius Limbong Indriani Agustin Prabowo Prasetyo Handrianto Yuliani