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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 Jurnal Agrotek Tropika J-MAS (Jurnal Manajemen dan Sains) JURNAL PHOTON Jurnal Hilirisasi IPTEKS (JHI) Buletin Ilmiah Nagari Membangun Jurnal Agronomi Tanaman Tropika (JUATIKA) Jurnal Agrotek Lestari 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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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.

PENGARUH CAMPURAN COCOPEAT DAN ROCK PHOSPHATE TERHADAP PERTUMBUHAN DAN HASIL TIGA VARIETAS PADI GOGO (Oryza sativa L.) PADA MEDIUM ULTISOL Rahmi Yulia; Nelvia Nelvia; Erlida Ariani
Jurnal Solum Vol 15, No 1 (2018): JURNAL SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

The research aims to study the effect of mixture of cocopeat and rock phosphate on growth and yield of three varieties of upland rice in Ultisols medium. The research was conducted at the Green House of the Faculty of Agriculture, University of Riau, Pekanbaru from March to August 2017. The research used Split Plot Design. The main plot were upland rice consist of three varieties (Situ Bagendit, Situ Patenggang and Inpago 8). The subplots were mixture of cocopeat 10 t ha-1 with rock phosphate (RP) doses 0, 30, 45, and 60 P2O5 kg ha-1. The parameters observed were plant height, number of maximum tillers and productive tillers, panicle length, flowering age, number of grain panicle-1, weight of dry milled grain and weight of 1000 grain. The results showed that the application of mixture of cocopeat doses 10 t ha-1 and RP doses 30 – 60 P2O5 kg ha-1 have effect to plant height, panicle length, and weight 1000 grain for Situ Bagendit, Situ Patenggang and Inpago 8 compare to without RP, but tended increase number of maximum and productive tillers and decrease flowering age. The application cocopeat doses 10 t ha-1 and RP doses 30 P2O5 kg ha-1 increased number of filled grain panicle-1 and weight of dry milled grain on three varieties, weight of dry milled grain Situ Patenggang > Inpago 8 > Situ Bagendit on each doses of RP and have number of productive tillers of these varieties 1,5 – 2 is greater than its descriptions.Keywords : rock phosphate, ultisol, upland rice

APLIKASI LIMBAH CAIR PABRIK KELAPA SAWIT DENGAN METODA BIOPORI TERHADAP PERTUMBUHAN TANAMAN KELAPA SAWIT (ELAEIS GUINEENSIS JACQ.) BELUM MENGHASILKAN Demson Saputra Tambunan; Nelvia Nelvia; Al Ichsan Amri
Jurnal Solum Vol 16, No 1 (2019): JURNAL SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

The wider the area of oil palm plantations in Indonesia, the more palm oil mills will process more oil palm fruit bunches and produce waste one of them is liquid waste. The amount of liquid waste that is more and more if not treated properly will cause environmental pollution. The research aim to study the effect of liquid waste of oil palm factory (LWOPF) with biopori method to the growth of immature oil palm plant. The experiment was conducted in oil palm plantation of Agricultural Faculty of Riau University from May to July 2017. The experiment was arrange drandomized complete design consisting of 13 treatments (without LWOPF; 5; 7.5 and 10 liters LWOPFeachapplied in 1, 2, 3 and 4 biopore/plants), each repeated three times.The parameters observed were plant height, number of midrib, length of midrib, number of leaves, width and length of leaves. The results showed that the application ofLWOPF dose 7.5 liters applied in 4 biopore holes / plants increased addition the number of midrib and the leaves, the width and length of the leaves compared to without LWOPF and the highest than another treatment, but the addition of plant high increased at doses 7.5 liters in 3 biopore/plant and highest than another treatment.Key words : Liquid Wastes of Oil Palm Factory, Biopore Holes, Oil Palm Plants

PEMBERIAN AMELIORAN DAN ISOLAT BAKTERI FIKSASI NITROGEN NON SIMBIOTIK (FNNS) UNTUK MENINGKATKAN PERTUMBUHAN DAN SERAPAN N TANAMAN PADI GOGO (Oryza sativa L.) PADA MEDIUM ULTISOL Yoggie Prathama; Nelvia Nelvia; Al Ikhsan Amri
Jurnal Solum Vol 15, No 2 (2018): JURNAL SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

The need of rice as the staple food of the people of Indonesia has a deficit every year. Upland rice cultivation in dry land such as Ultisols became one of the alternatives to meeting the needs of rice. However, productivity of crop in Ultisols is low because of some problems of acidity and nutrients deficiency. It is necessary input such as ameliorants like biochar cocopeat of oil palm empty bunch compost (OPEBC) and the use of bacterial non-symbiotic nitrogen fixation (NSNF) to fix the problems. The research aims to study the effect of application of ameliorant and suspensions of bacterial isolates of NSNF on growth and N uptake by upland rice in Ultisols medium. The research was conducted at the Green House of the Faculty of Agriculture, University of Riau, Pekanbaru from Mei to September 2017. The research in form factorial experiment was arranged a completely randomized design (CRD). The first factor were ameliorant, consists of six type (biochar, cocopeat, OPEBC, biochar+cocopeat, biochar+OPEBC, each doses 50 g polybag-1 and without ameliorant as a control). The second factor were suspensions of bacterial isolates of NSNF, consists of three levels (10 and 20 ml polybag-1 and without bacterial isolates as a control). The parameters observed were plant height, number of tillers, weight of dry shoot and roots, N uptake by shoot and roots. The results show that the application of ameliorant (biochar, cocopeat, OPEBC, biochar + cocopeat, biochar + OPEBC), each doses of 50 g polybag-1 and suspensions of bacterial isolates of NSNF doses of 0, 10 and 20 ml polybag-1 increased plant height, number of tillers, weight of dry shoot and N uptake by shoot compared to control and the application of without ameliorant with suspension of bacterial isolates of NSNF doses of 0, 10 and 20 ml polybag-1.Key words : biochar, cocopeat, palm oil empty bunch, upland rice, ultisol

PERTUMBUHAN DAN HASIL TANAMAN KEDELAI (Glycine max L.) TERHADAP PEMBERIAN VERMIKOMPOS DAN BIOCHAR DI TANAH ULTISOL Elisa Ester Sirait; Nelvia Nelvia; Hafiz Fauzana
Jurnal Solum Vol 17, No 2 (2020)
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

The use of organic matter in agricultural production is important in increasing crop production, especially in Ultisols. This study aimed to study the interaction between vermicompost and biochar on the growth and yield of soybean (Glycine max L.) in Ultisols. The research was carried out in the experimental station of the Faculty of Agriculture, Riau University, Bina Widya Tampan campus, Pekanbaru from July - September 2018. The research used factorial design form in a completely randomized design. The first factor is vermicompost which consists of 4 levels (doses of 0, 25, 50 and 75 g of polybag-1) while the second factor is biochar consisting of 4 levels (doses of 0, 25, 50 and 75 g of polybag-1) for each combination repeated 4 times. The parameters observed were the number of effective roots, proportion of effective nodules, plant height, number of primary branches, age of plants, age of harvest, proportion of well-fused pods, number of seeds, seed weight and weight of 100 seeds. The results showed that the interaction of vermicompost at a dose of 25 g.polybag-1 following a dose of 50 g.polybag-1 biochar increased the number of effective root nodules, the proportion of effective root nodules, the number of primary branches, the proportion of pithy pods, and accelerated plant age and soybean plant age compared without treatment but not significantly compared to other combinations.Key words : Soybean, vermicompost, biochar

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 Annisa, Syarifah Sari Anthony Hamzah Anwar, Nadia Rahmi AR, Arman Effendi Arif Fashli Hakiki Armaini Armaini Armaini, Armaini Arman Effendi ARNIS EN YULIA Arnis En Yulia Asman Sarif Daulay Atang Sutandi Atria Deamalda Tarigan Ayubi Alfasiri Azrida Syamsi Besri Nasrul Chairul Chairul Chairul, Chairul Delita Zul Demson Saputra Tambunan Desita Salbiah Eka Saputra Eko Jaya Siallagan Eko Kurniawan El Sahira, Resi Elisa Ester Sirait Erawati, Netti Erlida Ariani Erlida Ariani Faisal, RE Fauzan Abadi Febiani, Hartika Fetmi Silvina Fifi Puspita Fifi Puspita Fifi Puspita Firlana Firlana Fitri Yeni Fitria Darpis Fitriana, Melani Friska Anggreani Silalahi Gunawan Tabrani Hafiz Fauzana Hakiki, Arif Fashli Hamid, Imam Ramadhan Huryatul Islam Huryatul Islam 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 Khairunnisa, Syakira Nada khusnul khotimah Kortima, Eka Kumbara Lubis, Nursiani Mahmudin Mahmudin, Mahmudin Mardiyan, Kevin Marlina Marlina Martin Donal Wido Siregar, Martin Donal Wido Marzuki, Salman 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 Nurul Huda Sholikhatul Khusna Nurwijayanti Pajri Ananta Yudha Pebrianti, Riska Pedri Antoro Putri Intan Permata Sari Putri, Afra Fadhila Rahayu, Vinna Sartika Rahimmi, Anna Fithra Rahmadini, Aulia Rahmi Yulia Rai Edgar Gusti Ramadhoni, Rizky Ricky Saputra Sinaga Rini Rini Riska Pebrianti Rita Kurnia Rizky Ramadhoni Rosmimi Rosmimi Rovanty Frizdew Rusli Rustam RUSLI RUSTAM Rusli Rustam Samsudin Samsudin Sandy, Athifah Faradilla Sinaga, Raihan Daffansyah Sitompul, Diantika Elena SIZIKO ANDRI SUKEMI INDRA SAPUTRA Sumiati Sumiati Susilawati Susilawati Susilawati, Susilawati 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, Yayan 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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