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All Journal Jurnal Ilmu Pertanian Indonesia Journal of Tropical Soils Biotropika Planta Tropika BERITA BIOLOGI JURNAL BIOLOGI INDONESIA Biosaintifika: Journal of Biology & Biology Education
Sarjiya Antonius
Pusat Penelitian Biologi, Lembaga Ilmu Pengetahuan Indonesia, Cibinong
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology

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Journal : BERITA BIOLOGI

 1 
PEMANFAATAN INOKULAN MIKROBA SEBAGAI PENGKAYA KOMPOS PADA BUDIDAYA SAYURAN [Microbial inoculants for compost enrichment on vegetables cultivation] Antonius, Sarjiya; Rahmansyah, Maman; Muslichah, Dwi Agustiyani
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (788.864 KB) | DOI: 10.14203/beritabiologi.v14i3.1824

Abstract

 Microbial existence is due to mineralize organic compound in soil and caused nutrients availability to the plants. In this study, some of microbial inoculants consist of a). Phosphate soluble bacteria (Pseudomonas sp.) collected from soils that intensively utilized agrochemical in its agriculture activities; b). Nitrogen - fixing bacteria Rhizobium leguminosarum; and c) Trichoderma sp. and Aspergillus sp.as organic degradation fungi were used for compost enrichment.These inoculants formulation were utilized to carrots (Daucus carota L.), broccoli (Brassica oleracea L.) and maize (Zea mays L.) cultivation in upland area, Cisarua, Bogor, West Java. This study was aimed to assess inoculants response to enrich fully mature and half ripe compost. Crops response to the inoculation treatment was varied among these commodities. In general, the response of plants with the use of compost enriched biofertilizer was positive, with an increase in yield of about 15- 30% for carrots, broccoli around 65- 90% and about 10% of corn crops. The significant increase in crops production as impact of organic fertilizier application indicated that C organic content of the organic farm of Cimelati and Agato were defisit.
FISIOLOGI PERTUMBUHAN, POTENSI AKTIFITAS PRODUKSI N2O DAN GEN FUNGSIONAL PENYANDINYA PADA BEBERAPA ISOLAT BAKTERI DENITRIFIKASI Agustiyani, Dwi; Laili, Nur; Antonius, Sarjiya
BERITA BIOLOGI Vol 17, No 2 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4963.084 KB) | DOI: 10.14203/beritabiologi.v17i1.2340

Abstract

Physiological characters of four denitrifying bacteria (Bacillus sp. CPNS, Bacillus thuringiensis UPT1, Brevundimonas diminuta EA1 and Bacillus sp. UPSB) were studied based on the growth ability on various nitrate concentrations and the production of N2O gas. The characters of denitrifying bacteria were also evaluated through the existence of functional genes nirS and nosZ, encoding the nitrite reduction and nitrous oxide reduction enzymes which have important role on denitrification processes. The study showed that Bacillus sp. UPSB and Bacillus sp. CPNS isolates have a linear growth with the increasing concentration of KNO3. The N2O gas production of Bacillus sp. UPSB isolate was relatively high, about 70 ?/l, Bacillus sp. CPNS isolate was 25?/l, while the Bacillus thuringiensis UPT1 isolate was 5 ?/l and Brevundimonas diminuta EA1 isolate was 8 ?/l. It was also indicated that both Bacillus sp. UPSB and Bacillus sp. CPNS had high deninitrification activities. It was confirmed that all isolates were contained functional gen of nirS and nosZ.
Co-Authors Akib, Muhammad Akhsan Andi Salamah Dewi, Tirta Kumala DEWI, TIRTA KUMALA Dori Kusuma Jaya Dwi Agustiyani Entis Sutisna Gunawan Djajakirana Jamhari Jamhari Lekatompessy, Sylvia J. R. Maman Rahmansyah Muslichah, Dwi Agustiyani Novik Nurhidayat Nur Laili RAHAYU WIDYASTUTI Rumella Simarmata, Rumella Sahputra, Rozy Dwi Sahputra, Rozy Dwi Solly Aryza Sukmadewi, Desak Ketut Tristiana Syatrawati Taufiq Hidayat Tiwit Widowati, Tiwit Tutik Kuswinanti Yulia Nuraini