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Penurunan Logam Berat Timbal (Pb) pada Kolam Biofiltrasi Air Irigasi Dengan Menggunakan Tanaman Air (Aquatic Plant) Murdhiani, Murdhiani; Sabrina, T.; Sumono, Sumono
Jurnal Ilmu Pertanian KULTIVAR Vol 5, No 2 (2011)
Publisher : Jurnal Ilmu Pertanian KULTIVAR

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Abstract

Abstrak Penggunaan tanaman air dapat digunakan untuk mengurangi konsentrasi logam berat timbal di air irigasi. Tujuan penelitian ini adalah untuk mengetahui pengaruh tanaman eceng gondok, semanggi air dan Azolla serta pengaruh laju debit air irigasi dari kolam biofiltrasi dalam menurunkan konsentrasi logam berat timbal (Pb) dalam air irigasi. Metoda penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL)  dengan 2 (dua) faktor dengan 3 (tiga) ulangan. Faktor pertama adalah debit air kolam biofiltrasi yaitu 0.6 l/det/ha (0.3 ml/det/m2), 1.1 l/det/ha (0.55 ml/det/m2), 1.6 l/det/ha (0.8 ml/det/m2). Faktor kedua adalah jenis tanaman  yaitu tanpa tanaman (kontrol), tanaman eceng gondok, tanaman semanggi air, dan tanaman Azolla. Hasil penelitian menunjukkan bahwa penggunaan tanaman air eceng gondok, semanggi air dan Azolla memberi pengaruh terhadap penurunan konsentrasi logam berat timbal (Pb) di air dan tanah. Tanaman Azolla, tanaman air yang paling berpotensi digunakan dalam menurunkan konsentrasi logam berat timbal (Pb) di air irigasi. Debit yang lebih efektif menurunkan logam berat timbal (Pb) pada debit 0.3 ml/det/m2, namun pada debit 0.8 ml/det/m2 adalah perlakuan debit yang besar dan tanaman Azolla juga mampu menurunkan konsentrasi logam berat timbal (Pb) di air irigasi. Kata kunci: timbal, air irigasi, tanaman air
Perbaikan Sifat Tanah Kebun Kakao pada Berbagai Kemiringan Lahan dengan Menggunakan Teknik Biopori dan Mulsa Vertikal Maharany, Rina; Rauf, Abdul; Sabrina, T.
Jurnal Ilmu Pertanian KULTIVAR Vol 5, No 2 (2011)
Publisher : Jurnal Ilmu Pertanian KULTIVAR

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Abstract

Pengelolaan limbah tanaman kakao masih belum ditangani dengan tepat, salah satu upaya pengelolaan yang tepat dalam pengelolaan serasah kakao adalah dengan membenamkannya ke dalam tanah agar terjadi percepatan pelapukan (secara biopori dan mulsa vertikal) dan memberikan kontribusi terhadap perbaikan dan kesuburan sifat tanah. Tujuan penelitian ini adalah untuk mengevaluasi teknik yang paling tepat dilakukan dalam penempatan serasah kakao terhadap perbaikan sifat tanah di kebun kakao, dan untuk mengevaluasi pengaruh kemiringan lahan terhadap sifat tanah di perkebunan kakao, untuk mengevaluasi interaksi antara penempatan serasah kakao dan kemiringan lahan terhadap sifat tanah di perkebunan kakao. Metoda penelitian yang digunakan adalah Rancangan Petak Berjalur (Strip Plot Design) dengan 3 (kali) ulangan. Faktor pertama adalah kemiringan lahan yaitu lahan datar, lahan landai dan lahan miring. Faktor kedua adalah penempatan serasah kakao yaitu tanpa pemberian mulsa (kontrol), penempatan serasah secara biopori, dan penempatan serasah secara mulsa vertikal. Hasil penelitian menunjukkan bahwa perlakuan penempatan serasah kakao berpengaruh nyata terhadap perbaikan sifat tanah dikebun kakao terutama penempatan serasah kakao secara mulsa vertikal. Perlakuan kemiringan lahan berpengaruh nyata terhadap sifat tanah kebun kakao, yang lebih baik adalah pada kemiringan lahan datar. Interaksi antara perlakuan penempatan serasah kakao dan kemiringan lahan berpengaruh nyata terhadap perbaikan sifat fisik, sifat kimia, dan sifat biologi tanah di kebun kakao. Kata kunci: biopori, mulsa vertikal, sifat fisik, kimia, biologi tanah
PENGARUH WAKTU PEMBERIAN DAN KOMPOSISI COMPOST TEA TANDAN KOSONG KELAPA SAWIT DIPERKAYA Azotobacter TERHADAP PRODUKSI SAWI Munthe, Jannerson; Masrul, Erwin; Sabrina, T.
AGROEKOTEKNOLOGI Vol 2, No 2 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

The demand on organic agriculture products are increasingly with the increasing awareness onhealthy and nutritious foods, and also on protecting environment. In addition, the increasingdemand on organic food caused increasing the demand on organic fertilizers. Compost tea is analternative source of nutrients for plant in order to reduce chemical fertilizers. The aim of this studywas to determine the effect of compost tea application time and composition enriched oil palmempty fruit bunches Azotobacter in increasing the production of mustard. The study used arandomized block design (RBD) factorial consist of 2 factors and 3 replications. The first factor wasthe application time consist of 2 treatments (3 days and 6 days) and the second factor was thecompost tea formula consists of 5 treatments (150 g oil-palm empty fruit bunch compost+ 5000 mLof water, 150 g oil-palm empty fruit bunch compost + 1500 mL of coconut water + 3500 mL ofwater with 2% molasse, 300 g oil-palm empty fruit bunch compost + 3000 mL of coconut water +2000 mL of water with 2% molasse, 150 g oil-palm empty fruit bunch compost + water + 1500mL of coconut water +3500 mL water with 4% molasse and 300 g oil-palm empty fruit bunchcompost + 3000 mL of coconut water + 2000 mL water with molasse 4%). Results showed that theformulation compost tea 300 g oil-palm empty fruit bunch compost with 3000 mL coconut water +2000 mL water + 4% molasse gave the highest mustard production (based on wet weight), dryweight, plant height, leaf width and N uptake by plant and the chlorophyll content in mustard leaf.The best of application time was 6 days which gave the highest yield based on the wet weight, dryweight, plant height, leaf width, and N uptake by mustard. The certain formula of compost tea didnot had to be aplied on certain interval, either every 3 day nor 6 day.Keywords: Oil-Palm Empty Fruit Bunch Compost, compost tea, mustard, coconut water, molasse
POTENSI BERBAGAI TANAMAN SEBAGAI INANG INOKULUM MIKORIZA ARBUSKULAR DAN EFEKNYA TERHADAP PERTUMBUHAN TANAMAN JAGUNG DAN KEDELAI DI TANAH ULTISOL Hasibuan, Doli Saputra; Sabrina, T.; Lubis, Alida
AGROEKOTEKNOLOGI Vol 2, No 2 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

The objective of this research would be to examine the micorrhyze inoculum quality of severaltypes of hosts using ultisol as growing medium on maize and soybean growth. The research hasbeen conducted in greenhouse and laboratory of Biotechnology of Soil, Faculty of Agriculture,North Sumatera University. To achieve this objective, a non-factorial group random sampling hasbeen used through some treatments: J J (maize was applied with mycorrhyze inoculum of maize), DJ (maize was apolied with mycorrhyze inoculum of soybeans), S J (maize was applied withmycorrhyze inoculum of setaria grass), T J (maize was appolied with mycorrhyze inoculum ofgroundnuts), J D (soybean was applied with mycorrhyze inoculum of maize), D D (soybean wasapplied with mycorrhyze inoculum of soybeans), S D (soybean was applied with mycorrhyzeinoculum of setaria grass), T D (soybean was applied with myzoerhyze inoculum of groundnuts).The result of research indicated that application of myzorrhyze inoculum of maize, soybean,groundnut and setaria grass to maize and soybean plants has not significant effect of increassing theheight of plants, wet weight of shoot, dry weight of shoot, wet weight of root, degree of rootinfection, uptakes of N and P in plants of maize and soybean plants.Keywords: host, mycorrhyze inocolum, maize, soybean, groundnut, and setaria grass
PEMANFAATAN JAMUR PELARUT FOSFAT DAN MIKORIZA UNTUK MENINGKATKAN KETERSEDIAAN DAN SERAPAN P TANAMAN JAGUNG PADA TANAH ALKALIN Nasution, Rizky Mardiana; Sabrina, T.; Fauzi, Fauzi
AGROEKOTEKNOLOGI Vol 2, No 3 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

P availability in soil is often be the limiting factor on plant growth and production. Phosphatesolubilizing organism is one of alternative to solve this problem. The aim of this study was todetermine the effect of phosphate solubilizing fungi and mycorrhizae and their interaction toincrease P availability and P absorption by Maize on Alkaline Soil . This research was conducted inthe green house, Soil Biology laboratory and Chemical and Soil Fertility Laboratory of FakultasPertanian USU in March-August 2013, used Randomized Block Design (RBD) factorial consistingof 2 factors and 4 replications. The first factor was phosphate solubilizing fungi inoculationconsisting of 2 treatments (with and without inoculation) and the second factor was mycorrhizaeapplication consisting of 3 treatments (0, 10, 20 g/polybag). Parameters observed were soil pH,P-availability, C-organic, plant height, stem diameter, shoot dry weight, root weight, P-absorption,100 seeds dry weight, mycorrhizae infection and phosphate solubilizing fungi population. Theresult showed that phosphate solubilizing fungi inoculation significantly affected phosphatesolubilizing fungi population and not affected others parameters, however it increased plant growthand production. Mycorrhizae application decreased soil pH, stem diameter, and increasedmycorrhizae infection significantly. Mycorrhizae application dose of 10 g mycorrhizae resulted thehighest plant height, shoot dry weight, highest P-absorbtion, 100 seeds dry weight but decreasedC-organic and P availability.Keywords: phosphate solubilizing fungi, mycorrhizae, alkaline soil, maize
PENGARUH PEMBERIAN LIMBAH CAIR INDUSTRI TEMPE DAN MIKORIZA TERHADAP KETERSEDIAAN HARA N DAN P SERTA PRODUKSI JAGUNG (Zea mays L.) PADA TANAH INCEPTISOL Hapiza, Muhammad Riza; Sabrina, T.; Marbun, Posma
AGROEKOTEKNOLOGI Vol 2, No 3 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

Tempe industry liquid waste contains several nutrients that can be absorbed by plant roots.Application of mycorrhiza with tempe industry liquid waste to maize simultaneously planted onInceptisol is expected to increase nitrogen and phosphate available. The aim of this study was toexamine the best concentration of tempe industry liquid waste and mycorrhiza dosage in increasingN and P availability in Inceptisol soil and maize producion. The experiment was conducted in theexperimental fields of the Faculty of Agriculture USU ( ± 25 m asl) from March - July 2013 andusing a randomized block design (RBD) with 2 factors and 3 replications. The first factor wasconcentration of liquid tempe industry waste (0, 20, 40 and 60 mL of tempe industry liquid wastetempe/100 mL of water) and the second factor was mycorrhiza dosage (0, 10 and 20gmycorrhiza/plant). The results showed that the tempe industry liquid waste increased the root dryweight of maize significantly. Application mycorrhiza affected the concentration of N on leafsignificantly. The tempe industry liquid waste and mycorrhiza and its interaction were notsignificant effect on the parameters of the soil pH, C-organic, total-N soil, uptake of N, P-available,the concentration of P on leaf, uptake of P, population of microorganisms,degree of mycorrhizainfection, canopy dry weight of maize, weight of cobs, plant height and stem diameter. The bestconcentration of tempe industry liquid waste was 60% which increased the cob weight of themaize 1.15 to 1.25 times higher than the weight of cobs on the others concentration of tempeindustry liquid waste or without application of tempe industry liquid waste.Keywords : tempe industry liquid waste, mycorrhiza, the availability of N , the availability of P, theproduction of corn .
PENGEMBANGAN UJI VISUAL SEDERHANA DARI KUALITAS BERBAGAI KOMPOS DAN PERBANDINGANNYA DENGAN UJI LABORATORIUM DAN UJI PERCOBAAN LAPANGAN Ibadillah, Syafitra; Sabrina, T.; Razali, Razali
AGROEKOTEKNOLOGI Vol 2, No 3 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

At the market, composts are sold varied in their quality. Some of them are originated fromforest floor and other are collected from burnt and half- decomposed municipal waste. Thereis no control for commercial compost by government, thus many of composts sell at marketare not registered. Buyers should able to detect the good and bad compost quality in thesimple ways. This present experiment was conduct to develop a new simple visual test todetect the good and bad compost quality and comparing test result with the test result oflaboratory analysis and field experiment. The composts used in this experiment were:vermicompost (made by researcher), 2 burnt municipal waste (burned by researcher) and 8commercial composts. Simple test consist of several parameters viz color, odor, react ofcompost when put into water, The compost laboratory analysis were: pH, carbon organic,total nitrogen, ratio, C/N, total microorganism number, water holding capacity, compostparticle size composition. The field experiment test was conducted in the screen house usingmustard as an indicator plant. The experiment design was randomized block with 12treatments (vermicompost as a control for good compost, 2 burnt municipal waste compostsas a control for bad compost, 8 commercial composts and without adding compost) and 3replications. The result showed that the color of burnt municipal waste composts weregrayish, while the color of vermicompost was dark brown. No Odor of burnt municipalwaste compost was founds, while the odor of vermicompost was humid odor. All of theburnt municipal waste composts were sinking into the bottom of glass when it puted intowater, and not for vermicompost. Almost all of compost solid from forest floor was floatingwhen puted into water. The laboratory analysis test showed the burnt municipal compostshad the lowest C organic, N total content, C/N, and total microorganism number, and had thehighest pH value compare to other composts. The tests showed that some of commercialcomposts quality were bad. Meanwhile, the result of field experiment test did not gave thesignificant effect on the growth and production of mustard (Brassica juncea) using good orbad compost quality compare to control (without adding compost). As conclusion, the badquality of compost especially the burnt municipal waste compost, and the forest floorcompost were able detect using simple test by putting it into water.Keywords : vermicompost, burnt municipal waste, commercial compost, simple test,laboratory test, field experiment test
Campuran Tulang Sapi Dengan Asam Organik Untuk Meningkatkan PTersedia dan Pertumbuhan Tanaman Jagung di Inceptisol Pratama, Andi; Mukhlis, Mukhlis; Sabrina, T.
AGROEKOTEKNOLOGI Vol 2, No 4 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

The research aimed to determine the effect of a mixture of cow bone ash with organic acids on Pavailable inceptisol soil and growth of maize (Zea mays L.). The research was conducted in thegreenhouse and analyzed in the laboratory of research and technology of Agriculture Faculty ofNorth Sumatera University of Medan from May-October 2013. The research design was nonfactorialrandomized block design consisting of 13 treatments with 3 replications that is: Control,T1K (cow bone ash 166.7 g), T1S1 (cow bone ash 166.7 g + citric acid 2% 500.1 mL), T1A1 (cowbone ash 166.7 g + acetic acid 2% 500.1 mL), T1L1 (cow bone ash 166.7 g + lactic acid 2%500.1mL), T2K (cow bone ash 333.4 g), T2S2 (cow bone ash 333.4 g + citric acid 2% 1000.2 mL),T2A2 (cow bone ash 333.4 g + acetic acid 2% 1000.2 mL), T2L2 (cow bone ash 333.4 g + lactic acid2% 1000.2 mL), T3K (cow bone ash 500.1 g), T3S3 (cow bone ash 500.1 g + citric acid 2% 1500.3mL), T3A3 (cow bone ash 500.1 g + acetic acid 2% 1500.3 mL), dan T3L3 (cow bone ash 500.1 g +lactic acid 2% 1500.3 mL).The result of research indicated that application of 500.1 g cow bone ash+ citric 1000.2 mL citric acid 2% was the highest increasing soil pH (6.78), P available (20 ppm),P-uptake of plants (0.26 g P/plant), plant shoot dry weight (51.66 g), plant root dry weight (14.23),and plant height (187.27 cm) compared with other treatments.Keywords: Cow Bone, Organic Acid, Phosphate, Inceptisol
PENGARUH PEMBERIAN MVA (MIKORIZA VESICULAR ARBUSKULAR) TERHADAP PERTUMBUHAN STUMP KARET KLON PB 260 (Hevea Brasiliensis Muell Arg.) DAN SERAPAN HARA PADA BERBAGAI KADAR AIR TANAH DI RUMAH KASA Sahar, Asmarlaili; Sabrina, T.; Hanafiah, Diana Sofia
Pertanian Tropik Vol 2, No 2 (2015)
Publisher : Pasca Sarjana FP USU

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Abstract

Mikoriza arbuskular merupakan jamur akar yang dapat meningkatkan ketahanan bibit yang diinfeksinya lebih baik dibandingkan dengan yang tidak terinfeksi jika ditanam ke lapang. Penelitian ini bertujuan untuk mempelajari pengaruh pemberian MVA (Mikoriza VesicularArbuskular) terhadap pertumbuhan stump karet Klon PB 260 (Hevea brasiliensis MUELL Arg.) dan serapan hara pada berbagai kadar air tanah di rumah kasa. Penelitian dilakukan pada akhir Maret 2014 dan selesai pada pertengahan Agustus 2014. Isolat MVA yang digunakan adalah Acaulospora sp 1, Acaulospora sp 2 dari hasil penelitian HB 2013 dan Glomus sp yang berasal dari koleksi Laboratorium Biologi Tanah FPUSU. Penelitian ini dilakukan di rumah kasa FP USU, dengan menggunakan rancangan petak terpisah. Sebagai petak utama adalah kadar air (100, 80 dan 60% kapasitas lapang). Sebagai anak petak adalah perlakuan MVA sebanyak 100g inokulum/polibeg yang terdiri dari tanpa inokulasi dan diinokulasi dengan berbagai isolat MVA. Setiap kombinasi perlakuan diulang empat kali. Variabel yang diamati meliputi pertumbuhan tanaman (pertambahan diameter batang) yang diamati setiap minggu, bobot kering tanaman, serapan hara N dan P, derajat infeksi akar pada akhir percobaan. Hasil penelitian ini menunjukkan bahwa penurunan kadar air tanah menurunkan serapan unsur hara N dan P oleh tanaman. Pada kondisi kadar air tanah 80% kapasitas lapang diperoleh pertambahan diameter batang, serta serapan hara N, P tertinggi pada tanaman yang diinolulasi dengan Acaulospora Sp1. Pada kondisi kadar air tanah 60% kapasitas lapang, pertambahan diameter batang tertinggi diperoleh pada tanaman yang diinokulasi dengan Glomus sp.
KARAKTERISTIK TANAH DAN PERBANDINGAN PRODUKSI KELAPA SAWIT (Elaeis guineensis Jacq.) DENGAN METODE TANAM LUBANG BESAR DAN PARIT DRAINASE 2:1 PADA LAHAN SPODOSOL DI KABUPATEN BARITO TIMUR PROPINSI KALIMANTAN TENGAH - INDONESIA Surianto, Surianto; Rauf, Abdul; Sabrina, T.; Sutarta, Edi Sigit
Pertanian Tropik Vol 2, No 2 (2015)
Publisher : Pasca Sarjana FP USU

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Abstract

Spodosol soil of Typic Placorthod sub-group of East Barito District is one of the problem soils with the presence of hardpan layer, low fertility, low water holding capacity, acid reaction and it is not suitable for oil palm cultivation without any properly specific management of land preparation and implemented best agronomic practices. A study was carried out to evaluate the soil characteristic of big hole (A profile) and non big hole (B profile) system and comparative oil palm productivity among two planting systems. This study was conducted in Spodosol soil at oil palm plantation (coordinate X = 0281843 and Y = 9764116), East Barito District, Central Kalimantan Province on February 2014, by surveying of placic and ortstein depth and observing soil texture and chemical properties of 2 (two) oil palms soil profiles that have been planted in five years. Big hole system of commercial oil palm field planting on Spodosol soil area was designed for the specific purpose of minimizing potential of negative effect of shallow effective planting depth for oil palms growing due to hardpan layer (placic and ortstein) presence as deep as 0.25 - 0.50 m. The big hole system is a planting hole type which was vertical-sided with 2.00 m x 1.50 m on top and bottom side and 3.00 m depth meanwhile the 2:1 drain was vertical-sided also with 1.50 m depth and 300 m length. Oil palm production was recorded from year of 2012 up to 2014. Results indicated that the fractions both big hole profile (A profile) and non big hole profile (B profile) were dominated by sands ranged from 60% to 92% and the highest sands content of non big hole soil profile were found in A and E horizons (92%). Better distribution of sand and clay fractions content in between layers of big hole soil profiles of A profile sample is more uniform compared to B profile sample. The mechanical holing and material mixing of soil materials of A soil profile among the upper and lower horizons i.e. A, E, B and C horizons before planting that resulted a better distribution of both soil texture (sands and clay) and chemical properties such as acidity value (pH), C-organic, N, C/N ratio, CEC, P-available and Exchangeable Bases. Investigation showed that exchangeable cations (Ca, Mg, K), were very low in soil layers (A profile) and horizons (B profile) investigated. The low exchangeable cations due to highly leached of bases to the lower layers and horizons. Besides, the palm which was planted on the big hole system showed good adaptation and responsed positively by growing well of tertiary and quaternary roots that the roots were penetrable in to deeper rooting zone as much as >1.00 m depth. The roots can grow well and penetrate much deeper in A profile compared to undisturbed hard pan layer (B profile). The FFB (fresh fruit bunches) production of non big hole block was higher than big hole block for the first three years of production. This might be due to the high variation of monthly rainfall in between years of observation from 2009 to 2014. Therefore, the hardness of placic and ortstein as unpenetrable agents by rootsJurnal Pertanian Tropik ISSN Online No : 2356-4725Vol.2, No.2. Agustus 2015. (19) : 148- 158149and water to prevent water loss and retain the water in the rhizosphere especially in the drier weather. In the high rainfall condition, the 2:1 drain to prevent water saturation in the oil palm rhizosphere by moving some water in to the drain. Meanwhile the disturbed soil horizon (big hole area) was drier than undisturbance immediately due to water removal to deeper layers. We concluded that both big hole and 2:1 drain are suitable technology for Spodosol soil land especially in preparing of palms planting to minimize negative effect of hardpan layer for oil palm growth.Key words : Spodosol, Typic Placorthod, big hole, drain, fresh fruit bunches, hardpan, placic, ortstein