Nelvia Nelvia
Program Studi Magister Ilmu Pertanian, Fakultas Pertanian, Universitas Riau

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Phytoremediation with Acasia (Acasia crassicarpa) on peat soil using fly ash and dreg as ameliorants Rejeki, Yayuk Sri; ', Nelvia; ', Saryono
Indonesian Journal of Environmental Science and Technology Vol 1, No 1 (2014)
Publisher : Universitas Riau

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Abstract

Utilization of fly ash and dreg on peat soil to improve soil fertility is potential because there are largeamount of fly ash and dreg as well as the existence of critical. This study was aimed to determine the effect of fly ash and dreg on the growth and the accumulation  of metals Ba, Cd, Cr, Ni, Pb, and Se of Acacia crassicarpa and its absorption  efficiency in the peat soil. The results showed that the addition of fly ash and dreg with dif­ ferent doses and different  harvesting  time influenced  on the growth and the accumulation  of heavy metals in Acacia crassicarpa. The results of the study also indicated that there were differences in the absorption efficien­ cy of heavy metals by Acacia crassicarpa.Keywords: fly ash, dreg, metal accumulation, absorption efficiency, Acacia crassicarpa.
Utilization of Biochar Rice Husk and Straw to Increase Yield of Upland Rice (Oryza sativa L.) on Ultisol Medium Karunia Gea; Nelvia Nelvia; Adiwirman Adiwirman
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 2 No 2 (2020): Vol 2 No 2 (2020): July. Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (261.854 KB) | DOI: 10.36378/juatika.v2i2.374

Abstract

Beras merupakan bahan makanan pokok sebagian besar penduduk Indonesia dan mengalami defisit setiap tahun. Budidaya padi gogo di lahan marginal seperti Ultisol menjadi salah satu alternatif untuk memenuhi kebutuhan beras. Ultisol memiliki beberapa masalah dalam pengelolaannya seperti keasaman dan kekurangan nutrisi. Diperlukan input seperti sekam padi dan jerami padi berupa residu biochar dan asap cair untuk memperbaiki masalah. Penelitian ini bertujuan untuk mempelajari pengaruh aplikasi biochar, asap cair dan interaksi biochar dan asap cair terhadap pertumbuhan padi gogo di medium Ultisol. Penelitian ini dalam bentuk percobaan faktorial disusun dengan rancangan acak lengkap (RAL). Faktor pertama adalah residu biochar terdiri dari 4 taraf (0/tanpa biochar, 10 ton ha-1 sekam padi, 10 ton ha-1 jerami padi dan 5 ton ha-1 sekam padi + 5 ton ha-1 jerami padi). Faktor kedua adalah asap cair terdiri dari 3 taraf (0/tanpa asap cair, 0.5 ml L-1 sekam padi dan 0.5 ml L-1 jerami padi) masing-masing kombinasi diulang tiga kali. Hasil penelitian menunjukkan bahwa residu biochar sekam padi dan jerami padi masing-masing dosis 10 ton ha-1 meningkatkan tinggi tanaman, jumlah anakan maksimum, jumlah anakan produktif, umur keluar malai dan bobot kering jerami dibandingkan kontrol bahkan pada campuran keduanya (1:1) peningkatannya lebih tinggi. pemberian asap cair sekam padi dan jerami padi dosis 0.5 ml L-1 meningkatkan tinggi tanaman, jumlah anakan maksimum, jumlah anakan produktif, umur keluar malai, bobot kering jerami dibandingkan kontrol. Interaksi campuran residu biochar (sekam padi dan jerami padi) dosis 10 ton ha-1 (1:1) dan asap cair 0.5 ml L-1 (sekam padi dan jerami padi) meningkatkan tinggi tanaman, jumlah anakan maksimum, jumlah anakan produktif, umur keluar malai dan bobot kering jerami dibandingkan kontrol.
PENGARUH PEMBERIAN PUPUK KALIUM DAN CAMPURAN KOMPOS TANDAN KOSONG KELAPA SAWIT DENGAN ABU BOILER TERHADAP PERTUMBUHAN DAN HASIL TANAMAN BAWANG MERAH (Allium asacalonicum L.) DIAN FIKRI ALFIAN; NELVIA NELVIA; HUSNA YETTI
Jurnal Agroteknologi Vol 5, No 2 (2015): Februari 2015
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v5i2.1348

Abstract

The research aims to study the interaction of several doses of potassium fertilizer and compost mixture of oil palm empty fruit bunches with boiler ash on growth and yield of onion. The research has been carried out experimentally in the form of Randomized Completely Design Factorial 3 × 4. The first factor is the potassium fertilizer consist of three levels and the second factor is the compost mixture of oil palm empty fruit bunches with boiler ash consist of four levels. Observation made were plants height, number of tubers, diameter of tubers and fresh weight of tuber per clumps sample and yield of tubers per plot. Data analyzed by ANOVA and further tested using by Duncan`s New Multiple Range Test (DNMRT) at the level of 5%. The results showed the application of  potassium fertilizer and compost mixture of oil palm empty fruit bunches with boiler ash significantly affect on the diameter of tuber per clump samples and yield of tubers per plot but not significant for other observations. Application of 60 kg K2O/ha with a mixture of compost oil palm empty fruit bunches and boiler ash 7,5 + 0,25 tons/ha a good dose of the growth and yield of onion.
RESPONS FISIOLOGI, PERTUMBUHAN, PRODUKSI DAN SERAPAN P BAWANG MERAH (Allium ascalonicum L.) TERHADAP PEMBERIAN TRICHOKOMPOS TANDAN KOSONG KELAPA SAWIT (TKKS) TERFORMULASI DAN PUPUK P DI LAHAN GAMBUT ZALDI ARMAN; NELVIA NELVIA; ARMAINI ARMAINI
Jurnal Agroteknologi Vol 6, No 2 (2016): Februari 2016
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v6i2.2236

Abstract

The study aims to determine the effect of formulated PEFB trichokompos and P fertilizers  on growth, physiology, production and P uptake of onion in peatlands. This research used experimental factorial randomized completely block design and three replications. Trichokompos PEFB formulated as the first factor is composed of four levels (0, 5, 10 and 15 ton ha-1) and P fertilizers as the second factor consists of four levels (0, 120, 180 and 240 kg ha-1 P₂O5). Parameters measured were chlorophyll content, photosynthesis rate, stomataH2Oconductivity , the concentration of CO2 in the cell, transpiration rate, plant height, number of tillers, number of tubers per hill, the diameter of the bulbs, fresh weight of tuber per hill, plant dry weight and P uptake. The results showed trichokompos PEFB formulated 15 ton ha-1 can increase the response of onion production as tuber diameter and fresh weight per hill and P uptake response respectively by 25.58%, 74.92% and 76.39%. While the physiological responses seen to decrease thestomatal H2O conductivity and transpiration rate of respectively 21.43% and 28.79% compared with no PEFB formulatedtrichokompos. Provision of fertilizer P 120 P2O5 ha-1 can improve physiological responses such as H2O on stomatal conductivity, increased growth responses such as plant height, such as the production response tuber diameter and fresh weight per hill and P uptake response respectively by 7.69%, 22.25%, 26.23%, 56.21% and 44.26% compared with no fertilizer P. combination trichokompos PEFB formulated 15 ton ha-1 with manure P 120 P2O5 ha-1 is the best treatment combination, with the highest production response namely 7.65 g (1.91 ton ha-1) fresh weight per hill and increased 214.81% compared with no treatment trichokompos PEFB formulated and fertilizer P.
PENGARUH INOKULASI CAMPURAN ISOLAT BAKTERI PELARUT FOSFAT INDIGENUS RIAU TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN KEDELAI (Glycine max L. Merr) LUFITA NUR ALFIAH; DELITA ZUL; NELVIA NELVIA
Jurnal Agroteknologi Vol 7, No 1 (2016): Agustus 2016
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v7i1.2243

Abstract

At this time the oportunity increasing soybean production still open through optimize the fulfill of the nutrient of plants. Phosphorus is one of element nutrient essentiality macro those as very important to growth and development of plants. The existence it in land abundance, but the concentration P who are get reserve by plant is very low. At acid land P bunching aluminum (AI) and iron (Fe) meanwhile in land Alkhalin P bounded calsium (Ca). The increasing efesiency of supply fosfat at plant can effort with exploit microorganism soluble phosphate group. Test potential solubility P by BPF isolated from peat soil Biosphere Reserve Giam Siak Kecil Bukit Batu, Riau. Test was conducted and taken in semi-quantitative which able to dissolve Ca3 (PO4) 2, FePo4 and phosphate rock. However adaptability and potential dilution BPF origin peat soils of Riau indigenus inoculated soybean in mineral soil until now unknown. This research was conducted in order to determine the effect of inoculation BPF indigenus Riau toward growth and yield of soybean. The study was conducted in factorial experiment using completely randomized design (RAL Factorial), as the first factor is soil treatment consisting of two levels ie: T0: soil without sterilization, T1: sterilized soil. The second factor is the provision isolates BPF which consists of 4 levels, namely: B0: without inoculation, B1: 2 isolates BPF (BB_UB6 and BB_K9), B2: 3 isolates BPF (BB_UB6, BB_K9 and BB_K2), B3: 4 isolates BPF (BB_UB6, BB_K9, BB_K2, and BB_HS13). The results showed soil sterilization decrease the number of primary branch becomes 5.67 and 1.49 g dry weight of the plant. The fastest time of harvest occurs in plants without inoculation of sterile soil that is 78.78. The highest weight of 100 seeds produced by the plant without inoculation of sterile soil that is 13.17 g.