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All Journal Sodality: Jurnal Sosiologi Pedesaan Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Sainteks Ecotrophic, Journal of Environmental Science ILMU KELAUTAN: Indonesian Journal of Marine Sciences Agrikultura Microbiology Indonesia BIOTROPIA - The Southeast Asian Journal of Tropical Biology Journal of Tropical Soils Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati KOMUNITAS: INTERNATIONAL JOURNAL OF INDONESIAN SOCIETY AND CULTURE Jurnal Hortikultura Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) Journal of Degraded and Mining Lands Management Jurnal Agroekoteknologi Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) BERITA BIOLOGI Jurnal Penelitian Karet Jurnal Bioteknologi & Biosains Indonesia (JBBI) Jurnal Biodjati Jurnal Matematika Sains dan Teknologi Jurnal Penelitian Pertanian Tanaman Pangan Jurnal Kimia Terapan Indonesia Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Agrotech Journal of Tropical Crop Science BHUMI: Jurnal Agraria dan Pertanahan Menara Perkebunan JURNAL PANGAN Jurnal Tanah dan Iklim International Journal on Food, Agriculture and Natural Resources (IJFANRES) Makara Journal of Science
DWI ANDREAS SANTOSA
Department Of Soil Sciences And Land Resource, Faculty Of Agriculture, IPB University, IPB Darmaga Campus, Bogor 16680, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Social Sciences Veterinary Other

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Vegetative Growth Responses to Applications of Compost from Biomass of the Same and Different Crop Species and in Vitro Test of Self-DNA Effects Sari, Retno Purnama; Santosa, Dwi Andreas; Sudadi, Untung
International Journal on Food, Agriculture and Natural Resources Vol 6, No 4 (2025): IJ-FANRES
Publisher : Food, Agriculture and Natural Resources - NETWORKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46676/ij-fanres.v6i4.572

Abstract

Returning-back unharvested crop biomass into soil which is intended to maintain soil fertility status is now facing a challenge concerning self-DNA negative impacts related to the application of compost prepared from biomass of the same crop species at certain compost maturity stage. This study aimed at to evaluate the application effects of composts prepared from biomass of the same and different food crop species with different composting periods on the vegetative growth of rice, maize, and string beans and of DNA extracts from the applied composts on seed germination of the studied crops. The experiment applied CRD with 10 treatments [control, k (compost materials): rice (P), maize (J), and string beans (K) biomass, and composting periods: 0, 30, and 90 d]. DNA was isolated by the modified CTAB method. The results showed that application of mature compost supported the vegetative growth of the test crops, while kP30 and kJ30 treatments, stands respectively for the application of 30 days-composted rice and maize biomass, showed inhibitory effect to the vegetative growth of the same species (rice or maize compost applied to rice or maize cropping). However, in vitro self-DNA inhibition effect was inconsistent and therefore considered not occurred in this experiment.
LIPID PRODUCING MICROALGAE FROM SEVERAL ECOSYSTEMS IN WEST AND CENTRAL JAVA, INDONESIA DWI ANDREAS SANTOSA; SULASTRI
BIOTROPIA Vol. 17 No. 2 (2010): BIOTROPIA Vol. 17 No. 2 December 2010
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2010.17.2.79

Abstract

This study is aimed to get lipid producing microalgae as feedstock for biofuel production. The microalgae were isolated from 355 collected water samples which  represented many distinct ecosystems such as paddy fields, rivers, agricultural dams, ponds, swampy areas and unique ecosystem of volcano and mud-volcano craters in West- and Central Java, Indonesia. A total of  267 strains of microalgae were isolated from the samples of which  221 strains of them have capability to produce lipid. There were four promising strains that produce lipid between 14.7 – 45.7 percent dry weight in optimal condition that were identified as Chlamydomonas sp. KO-7267 and PK-7195, Chlorella sp. KS-7300 and Desmodesmus sp. BK-7291.   Keywords: microalgae, lipid, biofuel, Indonesian ecosystems
Application of Biological Nitrogen Fixation Cyanobacteria To Paddy Plant Cultivated Under Deep-Water Culture System Dian Hendrayanti; Iman Rusmana; Dwi Andreas Santosa; Hamim Hamim
Jurnal Biodjati Vol 5 No 2 (2020): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v5i2.8510

Abstract

 The Biological Nitrogen Fixing (BNF) cyanobacteria can reduce atmospheric nitrogen into ammonium. This ability makes BNF cyanobacteria a potential eco-friendly N-source for soil-planted pad-dy. Apart from a few success stories of BNF cyanobacteria applica-tion in the rice field, its role as an ammonium producer is still an open question. There is also a possibility that indeed cyanobacteria biomass which provides nitrogen through the biological decomposing process. This study aimed to analyze the influence of three strains BNF cyanobacteria on paddy grown in the Deep-Water Culture (DWC) hydroponic system. Yoshida Nutrient Solution was used as a growth medium with the application of 0, 45.7, and 91.4 gL-1 of ammonium nitrate (NH4NO3) with five replications. The result showed that inter-action between cyanobacteria and nitrogen significantly influenced the total nitrogen of paddy plant, but not the paddy plant height, the num-ber of tillers, and biomass. Cyanobacterial filaments were found most-ly attached to the paddy root rather than floated in the DWC system. Paddy treated with cyanobacteria had more lateral root than control. The result suggested that cyanobacteria support paddy growth indi-rectly through nitrogen deposition in plant tissue and root development. 
Co-Authors , Giyanto . Giyanto Abdul Hasyim Sodiq Abdul Munif Agus Purwito Aisamrotul Hasanah Aksarah Pas, Aris Amanda Kusuma Dewi Anas Miftah Fauzi Arum Asiyanti Suhastyo, Arum Asiyanti Arum Asriyanti Suhastyo Atang Sutandi Batara, Lily Noviani Bedah Rupaedah BIBIANA W LAY Bibiana W Lay Bibiana W Lay Chansyanah Diawati Dedeh H Arief Dedi Widayat Dian Hendrayanti Didiek Hadjar Goenadi Didy Sopandie Dwi Wulan Pujiriyani Endriatmo Soetarto F. Dian Lina Fahrizal Hazra Falih, Fairuz Annabil Fitriyani, Indri Hapsari Giyanto, Giyanto Gunawan Djajakirana Gustav Adolf Wattimena Hamim Hamim HANNA ARTUTI EKAMAWANTI Hari R Harlyadi Harpasis S. Sanusi Haryanti Haryanti Hazrah, Fahrizal I Dewa Ketut Sastrawidana Ilyas Jamil Iman Rusmana Indriyani, Yohanna Anisa Iskandar Iskandar Iswandi Anas Iswandi Anas Iswandi Anas Chaniago Iswandi Anas Chaniago, Iswandi Anas Ivanovich Agusta Juhari Juhari, Juhari Khoirunnisa, Nur Syafira Kukuh Murtilaksono Kurnia Dewi Sasmita Kusuma Handayani Laksmita Prima Santi Laksono Trisnantoro Maggy T Suhartono Memen Surahman Mieke Rochimi Setiawati Miftahudin Muchamad Yusron Muhammad Rivai Nasrul Harahap NISA RACHMANIA MUBARIK Noegroho Hadi Noor Fadiawati NUNI GOFAR Nurfadila, Uci Nursaadah . RAHAYU WIDYASTUTI Rani Nur Fitriani Remaja Sitepu Rustam, Rustam Ruyitno Ruyitno S Siswanto Sanjaya, Wilhelmus Terang Arga Sari, Retno Purnama Siswanto siswanto Slamet Susanto Sri Wilarso Budi Sudarsono Sukmadewi, Desak Ketut Tristiana SULASTRI Suryo Wiyono Susiyanti . Syaiful Anwar T W DARMONO Titik Tri Wahyuni Tommy Kurniawan Tri Prartono Trikoesoemaningtyas Tualar Slmarmata Umi Hidayati Umi Hidayati Untung Sudadi Wahono Sumaryono Widrializa, . Wilhelmus Terang Arga Sanjaya Wilhelmus Terang Arga Sanjaya YADI SETIADI Yeti Darmayati Yohanna Anisa Indriyani YULIN LESTARI Yuni Lisafitri, Yuni Yuyun Sumarni Zulfarina Zulfarina Zulfarina,