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All Journal Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Journal of Tropical Soils Jurnal Agro Teknologi Tropika JUPIIS: Jurnal Pendidikan Ilmu-ilmu Sosial Jurnal Online Mahasiswa (JOM) Bidang Pertanian JURNAL AGROTEKNOLOGI Jurnal Solum Jurnal Agroekoteknologi Jurnal Ilmiah Pertanian Wikrama Parahita : Jurnal Pengabdian Masyarakat J-MAS (Jurnal Manajemen dan Sains) JURNAL PHOTON Jurnal Hilirisasi IPTEKS (JHI) Buletin Ilmiah Nagari Membangun Jurnal Agronomi Tanaman Tropika (JUATIKA) Akta Agrosia ZIRAA'AH MAJALAH ILMIAH PERTANIAN Unri Conference Series: Community Engagement Devotion: Journal of Research and Community Service Journal of Community Engagement Research for Sustainability Innovative: Journal Of Social Science Research AGRIC Dinamika Pertanian Agriculture and Biological Technology

Nelvia Nelvia

Universitas Riau

Author-ID : 3232170

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Nursing Physics Public Health Social Sciences Veterinary Other

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RESPON PADI GOGO (Oryza sativa L.) TERHADAP PEMBERIAN SILIKAT DAN PUPUK FOSFAT PADA TANAH ULTISOL ZULPUTRA ZULPUTRA; WAWAN WAWAN; NELVIA NELVIA
Jurnal Agroteknologi Vol 4, No 2 (2014): Februari 2014
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v4i2.1130

The research aims to study the response of upland rice on the application of silicates and phosphate fertilizer on Ultisol. The study was conducted in land Ultisol in Pematang Berangan Village, Rokan Hulu Regency, Riau Province. Research in the form of experimental factorial completely randomized design consisting of two factors. The first factor is silicate consists of four levels (0, 50, 75, and 100 kg SiO2/ha), while the second factor that phosphate fertilizer consists of four levels (0, 36, 54, and 72 kg P2O5/ha), each combination was repeated three times. The results showed that application of silicates and phosphates increase the growth and yield of upland rice. The application of 100 kg SiO2 and 36 kg P2O5 per hectare increasing of the percentage of grain pithy and weight of dry grain per square meter, about 21% and 117% respectively compared to without silicates and phosphates.

PERTUMBUHAN PADI GOGO PADA MEDIUM ULTISOL DENGAN APLIKASI BIOCHAR DAN ASAP CAIR John Ivan Ndruru; Nelvia Nelvia; Adiwirman Adiwirman
Jurnal Agroteknologi Vol 9, No 1 (2018): Agustus 2018
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v9i1.3736

Penelitian ini telah dilakukan di rumah kaca fakultas pertanian univeristas riau, dalam bentuk RAL Faktorial. Faktor Pertama yaitu biochar dosis 10 ton/ha yang terdiri dari 4 taraf yaitu tanpa biochar, biochar sekam padi, biochar tempurung kelapa, dan campuran biocha sekam padi dan tempurung kelapa. Faktor kedua yaitu asap cair yang terdiri dari 3 taraf yaitu tanpa asap cair, asap cair sekam padi, asap cair tempurung kelapa. Hasil penelitian menunjukkan bahwa biochar berpengaruh terhadap tinggi tanaman, jumlah anakan maximum dan produktif bobot kering jeramai dan mempercepat umur keluar malai. asap cair dapat meningkatkan tinggi tanaman, bobot kering jerami dan mempercepat umur keluar malai. Interaksi keduanya berpengaruh terhadap tiinggi tanaman, anakan produktif bobot kering jerami dan mempercepat umur keluar malai dibandingkan tanpa perlakuan (kontrol)

ISOLASI DAN UJI POTENSI BAKTERI DIAZOTROF NON SIMBIOTIK ASAL TANAH KEBUN KELAPA SAWIT DENGAN APLIKASI TANDAN KOSONG DAN LIMBAH CAIR PABRIK KELAPA SAWIT Huryatul Islam; Nelvia Nelvia; Delita Zul
Jurnal Agroteknologi Vol 9, No 2 (2019): Februari 2019
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v9i2.4508

This study aimed was to isolate non-symbiotic N-fixation bacteria from oil palm plantations fertilized with empty fruit bunch (EFB) and palm oil mill effluent (POME) and to analyze their potency. The soil samples were taken by purposive sampling method from 4 different treatments are mixed application (EFB + POME), EFB application, POME application and without application (C), and each location was taken 3 times. Isolation of non-symbiotic N-fixation bacteria was perfomed by using NFb and Ashby's media. The parameters observed were bacterial cells number, number of isolates and their potency. The cells number of non-symbiotic N fixation bacteria at the application sites Mixed> POME application> EFB application> C. A total of 18 isolates were isolated and potentially as a nitrogen fixing bacteria characterized by the ability of isolates to change the color of the NFb medium from green to blue and form pellicle. The highest potential isolates are NFBC232, NFBK21, and NFBC33.

Pengaruh Pemberian Pupuk Hayati dan Pupuk N, P, K Terhadap Pertumbuhan dan Produksi Tanaman Bawang Merah (Allium ascalonicum L.) Muhammad Ma'ruf; Nelvia Nelvia; Fetmi Silvina
Jurnal Agroteknologi Vol 10, No 1 (2019): Agustus 2019
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v10i1.5628

The research aims to study the effect of the application ultra gen biofertilizer and N, P, K fertilizer on the growth and production of onion (Allium ascalonicum L.). The research was conducted at Agricultural Faculty Experimental Unit, University of Riau, Pekanbaru. The research in form factorial experimentally 5x3 arranged in a completely randomized design. The first factor was ultra gen biofertilizer consists of 5 levels (without, 50, 100, 150 and 200 l.ha-1). The second factor was a N, P, K fertilizer consists of 3 levels (without, 100 kg N + 45 kg P2O5 + 37,5 kg K2O and 200 kg N + 90 kg P2O5 + 75 kg K2O.ha-1), each combination was repeated 3 times. The parameters observed were number of bulb per clump, circumference of bulb, weight of bulb fresh per clump, weight of bulb fresh per plot and weight of bulb consumption per plot. The application of ultra gen biofertilizer doses of 100 l.ha-1and N, P, K fertilizer 100 kg N + 45 kg P2O5 + 37,5 kg K2O.ha-1 increased weight of bulb fresh per clump, weight of bulb fresh per plot and weight of bulb consumption per plot significantly compared to another combination, but not significantly on number of bulb per clump and circumference of bulb.

PENGARUH BIOCHAR DAN PUPUK HIJAU Calopogonium mucunoides TERHADAP PERTUMBUHAN DAN HASIL KEDELAI (Glycine max L. Merril) SERTA MAKROFAUNA TANAH DI GAWANGAN TANAMAN KELAPA SAWIT Windy Natasha Putri; Nelvia Nelvia; Idwar Idwar
Jurnal Agroteknologi Vol 10, No 2 (2020): Februari 2020
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v10i2.6829

Oil palm plantations in Riau are very extensive and developed on marginal land. The utilization of oil palm plant for soybean cultivation is an alternative to increasing soybean production in Riau, because soybeans are classified as plants that tolerant to shade. The research aimed to study the interaction of biochar and Calopogonium mucunoides green fertilizer on growth and yield of soybeans and diversity of soil macrofauna in inter-rows of oil palm plant. The research was conducted in Pekanbaru, carried out in 7-year-old oil palm plant and soil science laboratory of the Faculty of Agriculture, University of Riau from April-August 2018. The research was done experimentally in a 3x3 factorial form using a completely randomized design (CRD). The first factor is biochar from coconut shell consists of 3 levels (0, 2,5 and 5 ton.ha-1). The second factor is Calopogonium mucunoides green fertilizer consists of 3 levels (0, 2,5 and 5 ton.ha-1). The parameters observed were plant height, pods per plant, percentage of pithy pods, seeds per plant, seed weight per plot, weight of 100 seeds, population density and relative density of soil macrofauna, and diversity index of soil macrofauna. The results showed 2,5 ton.ha-1 biochar followed by 2,5 ton.ha-1 Calopogonium mucunoides green fertilizer increased the number of pods per plant compared to controls. The total individuals and population of soil macrofauna increased at 5 ton.ha-1 biochar followed by 5 ton.ha-1 Calopogonium mucunoides green fertilizer with the family that was often found, namely Scarabaeidae. The diversity index of soil macrofauna is low.

HUBUNGAN PERBEDAAN TINGGI MUKA AIR TERHADAP KADAR Cu DAN Zn DAUN SERTA PERTUMBUHAN TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq.) DI LAHAN GAMBUT Eko Jaya Siallagan; Wawan Wawan; Nelvia Nelvia
Jurnal Solum Vol 18, No 1 (2021)
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Peatland is an important natural resource for human life because it can be used as growth of oil palm plantation. The growth of oil palm plantations in peatlands is strongly influenced by peat water management. This study aims to study the relationship of different water levels to the content of leaf Cu and Zn nutrients and the growth of oil palm plants (Elaeis guineensis Jacq.) in the peatlands. This research has been carried out on peatland areas in oil palm plantations of PT. Jatimjaya Perkasa Sei Bangko, Kubu District, Rokan Hilir Regency, Riau Province. Analysis of soil samples and plants samples has been carried out at the Soil Laboratory, Faculty of Agriculture, Universitas Riau, Pekanbaru. The research was conducted in December 2017 to January 2018. This research was conducted using a survey method, the determination of the location of the study using a purposive sampling method, determination of sampling location is determined by stratified sampling method, where the strata in this study are grouped according to different peat water levels namely water level < 40 cm , 40 - 60 cm, and > 60 cm with oil palm plants at the same age which is six years and the piezometer has been installed properly. The parameters that observed in this study were soil pH, availability of Cu and Zn nutrient, total soil-K, content of Cu, Zn and K leaves and growth of oil palm plants which included plant height, midrib length and leaflet. The observed data were analyzed for variance and tested further by DNMRT at the level of 5%, analyzed by regression to see the relationship between water level and parameters. The results showed that peatland with water level of 40 - 60 cm had a soil pH, K-total soil, Cu leaves, Zn leaves, midrib length and the highest oil palm plantations compared to peat land with a groundwater level < 40 cm and > 60 cm, and has a different length of leaflets.Key words : Cu and Zn nutrient, Oil palm plantation, Peatlands, Water Level.

SIFAT KIMIA TANAH DAN POPULASI KUMBANG TANDUK (Oryctes rhinoceros L.) STADIA PRADEWASA PADA BERBAGAI KEDALAMAN PENEMPATAN TANDAN KOSONG KELAPA SAWIT Hafiz Fauzana; Ayubi Alfasiri; Nelvia Nelvia
Jurnal Solum Vol 16, No 1 (2019): JURNAL SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Oil palm is a very significant industrial plant in producing vegetable oils that require high levels of nutrients in its cultivation. Cultivation of oil palm yield can produce industrial waste, the oil palm empty trunks (TKKS) which have the potential to supply nutrients to oil palm land. The placement of empty trunks at various depths is expected can give effect to the population of Oryctes rhinoceros L pre-adult stage and chemical soil properties. This research was conducted on oil palm plantation in PT. Perkebunan Nusantara V Sei Galuh Tapung, Kampar, Riau from July to October 2017. The aim of this research is to examine the effect of empty trunks placement against the Oryctes rhinoceros L population development and chemical soil properties. This research was done using a randomized experiment design complete with the treatment of the depth empty trunks placement (placement of oil palm empty trunks on the ground at the depth of 10 cm, 20 cm, and 30 cm) which is repeated four times. The observed parameters include the population of infestation of Oryctes rhinoceros L (population of eggs, larvae and pupae) and soil chemical properties (soil pH, C-organic, N-total, P-total and K-total). The results showed that empty trunks placed below the surface at various depths affected the Oryctes rhinoceros L population. Placement of TKKS depth in the soil cannot be infested by Oryctes rhinoceros L. Placement of empty trunks at the depth of the soil tends to increase pH (from very acidic categories to acidic categories) and total K (from the low category to very high category), is not effected on C-organic and N-total and can reduce P-total (from the very high category to the high category) if compared to the placement of empty trunks on the ground.Key words : Chemical Soil properties, Oryctes rhinoceros L., Oil palm Empty trunks, Soil depth

ISOLASI DAN UJI POTENSI BAKTERI NITRIFIKASI ASAL TANAH KEBUN KELAPA SAWIT DENGAN APLIKASI TANDAN KOSONG DAN LIMBAH CAIR PABRIK KELAPA SAWIT Huryatul Islam; Nelvia Nelvia; Delita Zul
Jurnal Solum Vol 18, No 1 (2021)
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

This study aimed was to isolate nitrifiying bacteria from oil palm plantations fertilized with empty fruit bunch (EFB) and palm oil mill effluent (POME) and to analyze their potency. The soil samples were sampled from private oil palm plantations by purposive sampling method are mixed application (EFB + POME), EFB application, POME application and without application (C), and each location was taken 3 times. Isolation of nitrifiying bacteria was perfomed by using Nitrosomonas sp. and Nitrobacter sp. spesific media. The parameters observed were bacterial cells number, number of isolates and their potency. The results showed cells number of nitrifiying bacteria range 8.0 – 11.40 x 105cfu g-1 soil. A total of 18 isolates were isolated and potentially oxidized ammonium and nitrate. The best potential of bacteria in oxidizing ammonium at a concentration of 500 ppm (NH4)2SO4 was isolate NSC34 (3.4 ppm), and isolate with the best potential to produce nitrate at a concentration of 500 ppm (NH4)2SO4 were isolate of NBC225 (26.1 ppm). The most optimal activity of isolate bacteria to nitrifiying occurred at a concentration of 500 ppm (NH4)2SO4 and at 4 days incubation time.Key words : Nitrifiying bacteria, palm oil empty fruit bunch, palm oil mill effluent

APLIKASI KOMPOS TANDAN KOSONG KELAPA SAWIT DAN PUPUK NPKMg TERHADAP SIFAT KIMIA TANAH ULTISOL DAN KADAR HARA DAUN KELAPA SAWIT (Elaeis guineensis Jacq) Ahmad Syukri; Nelvia Nelvia; Adiwirman Adiwirman
Jurnal Solum Vol 16, No 2 (2019): JURNAL SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Low productivity of oil palm in Ultisol need to resolve by utilizing appropriate input and efficient soil management. Utilization of organic waste materials such as oil palm empty bunches (OPEB) is one of way for that. This research was conducted in Kuantan Singingi, Riau from September 2017 to February 2018. The aim of this research is to having dose of OPEB compost and NPKMg fertilizer that can optimize the value of soil chemical characters and nutrient content in leaves. The study determined the effect of composite oil palm empty bunches with cow manure (2:1(w/w)) and NPKMg (13:6:27:4) fertilizer. The study used a completely randomized design consisting of 6 levels :{(2,25 kg NPKMg), (10 kg OPEB compost + 1,75 kg NPKMg), (20 kg OPEBcompost + 1,5 kg NPKMg), (30 kg OPEBcompost+ 1,25 kg NPKMg), (40 kg OPEBcompost + 1,00 kg NPKMg), (50 kg OPEB compost) per tree}, each treatment was repeated 3 times. Parameters measured include soil chemical characters and nutrient content in leaves. The results of study showed, aplication 50 kg per tree TKKS compost was able to increase soil pH. Aplications (2.25 kg NPKMg, 50 kg TKKS compost, 20 kg compost TKKS + 1.50 kg NPKMg and 30 kg compost TKKS + 1.25 kg NPKMg) per tree can increase base saturation. Each treatment application for fertilization has been tested, given the same effect in all soil chemical characters tested beside pH and KB, and same effect in all leaf nutrient contents tested beside Zn.Key words : Palm Oil, Compost, OilPalmEmptyBunches, NPKMg

PERTUMBUHAN PADI GOGO DI MEDIUM ULTISOL DENGAN PEMBERIAN CAMPURAN FOSFAT ALAM DAN COCOPEAT PADA DUA KONDISI KADAR AIR Pedri Antoro; Nelvia Nelvia
Jurnal Solum Vol 15, No 2 (2018): JURNAL SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

The main problem of upland rice cultivation in Ultisol are fixation of P, solubility and saturation of Al are the height and water content is low. The research aim to study the effect of interaction of application of mixture of cocopeat with rock phosphate (RP) on growth of upland rice in Ultisols medium at two water content condition. The research was conducted at the Green House of the Faculty of Agriculture, University of Riau, Pekanbaru from February to July 2017. This research in form factorial experiment was arranged in a completely randomized design. The first factor was mixture of RP with cocopeat consist of 7 levels (0, 30, 45 and 60 kg P2O5/ha each dose + cocopeat dose 10 tons/ha and 30, 45 and 60 kg P2O5/ha without cocopeat). The second factor was water content consists of 2 levels (field capacity and 25% under field capacity), each combination repeated 3 times. The results show the application of rock phosphate dose of 30 kg P2O5/ha + 10 tons cocopeat/ha or without cocopeat increased the growth of upland rice include plant high, number of maximum tiller and productive tiller and dry weight of straw compared to without RP both on the field capacity and 25% below field capacity condition, the increasing of RP dose to 45-60 kg P2O5/ha tended to increase each parameter.Key words : rock phosphate, water content, cocopeat, upland rice.

Co-Authors ', Islan ', Rosmimi , Deviona, , Adiwirman Adiwirman Adiwirman Adiwirman Adiwirman Adiwirman, Adiwirman Ahmad Syukri Al Ichsan Amri Al Ikhsan Amri Al Ikhsan Amri Al Ikhsan Amri Alfian Alfian Anis Tatik Maryani Anna Fithra Rahimmi Anthony Hamzah Anwar, Nadia Rahmi AR, Arman Effendi Arif Fashli Hakiki Arif Fashli Hakiki Armaini Armaini Armaini Armaini Arman Effendi Arman Effendi AR Arnis En Yulia ARNIS EN YULIA Asman Sarif Daulay Atang Sutandi Athifah Faradilla Sandy Atria Deamalda Tarigan Ayubi Alfasiri Azrida Syamsi Besri Nasrul Chairul, Chairul Delita Zul Demson Saputra Tambunan Desita Salbiah Diantika Elena Sitompul Eka Saputra Eko Jaya Siallagan Eko Kurniawan El Sahira, Resi Elisa Ester Sirait Erawati, Netti Erlida Ariani Erlida Ariani Erlida Ariani Faisal, RE Fauzan Abadi Fetmi Silvina Fifi Puspita Fifi Puspita Fifi Puspita Fitri Yeni Fitria Darpis Fitriana, Melani Friska Anggreani Silalahi Gunawan Tabrani Hafiz Fauzana Hamid, Imam Ramadhan Hartika Febiani Huryatul Islam Huryatul Islam Idwar Idwar, , Idwar, Idwar Irfandri Irfandri Irfandri Irfandri Irfandri Irfandri, Irfandri Islan Islan Isnaini Isnaini Iswandi Anas JANRICO VALENTINO SEMBIRING Joehandra Joehandra John Ivan Ndruru Join Sinaga Juniadi Naibaho Kamarlin Pinem Kevin Mardiyan khusnul khotimah Kortima, Eka Lubis, Nursiani Mahmudin Mahmudin, Mahmudin Marlina Marlina Martin Donal Wido Siregar, Martin Donal Wido Maysarah Maysarah Mochammad Imron Awalludin Mora, Sofyan Enda Muhammad Ali Muhammad Ma'ruf Munal Riadi, Munal Murniati Murniati Mutiara Putri, Mutiara Nofripa Herlina Noviria, Ade Nurbaiti Nurbaiti Nurul Huda Sholikhatul Khusna Pajri Ananta Yudha Pedri Antoro Putri Intan Permata Sari Putri, Afra Fadhila Rahayu, Vinna Sartika Rahmadini, Aulia Rahmi Yulia Rai Edgar Gusti Raihan Daffansyah Sinaga Ricky Saputra Sinaga Rini Rini Riska Pebrianti Riska Pebrianti Rita Kurnia Rizky Ramadhoni Rizky Ramadhoni Rosmimi Rosmimi Rovanty Frizdew Rusli Rustam Rusli Rustam RUSLI RUSTAM Salman Marzuki Samsudin Samsudin SIZIKO ANDRI SUKEMI INDRA SAPUTRA Sumiati Sumiati Susilawati Susilawati Susilawati Susilawati Susilawati, Susilawati Syakira Nada Khairunnisa Syarifah Sari Annisa Tengku Yulia Ispi Adwa Vema Rohmawati Khasanah Veranika Veranika Veronica, Stevany Wardati Wardati Wardati, Wardati Wawan Wawan Wawan Wawan Windy Natasha Putri Winri, Desra Yayan Setiawan Yeni Hartati Yetti Elfina Yetti Elfina Yobi, Afrila Yoggie Prathama Yondra Yondra Yuliyatun Yuliyatun, Yuliyatun Yunandra Yunel Venita Zulfatri, Zulfatri Zulham Zulham Zulputra Zulputra ZULPUTRA ZULPUTRA

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