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Jurnal Solum
Published by Universitas Andalas
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Core Subject : Agriculture,
Jurnal Solum adalah jurnal ilmiah yang diterbitkan dua kali setahun pada bulan Januari dan Juni oleh Jurusan Tanah Fakultas Pertanian Universitas Andalas Padang. Jurnal ini merupakan media komunikasi dan publikasi hasil penelitian, opini ilmiah dan ulasan (review) dalam bidang ilmu tanah, pemanfaatan dan pegelolaan lahan dan lingkungan serta hubungan dan masalah antara tanah dan tanaman. JOURNAL OF SOIL and LAND UTILIZATION MANAGEMENT
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Articles 131 Documents
TITONIA DAN JERAMI PADI YANG DIKOMPOSKAN TERHADAP CIRI KIMIA TANAH DAN PRODUKSI JAGUNG PADA ULTISOL Gusnidar, Gusnidar; Fitri, Annisa; Yasin, Syafrimen
Jurnal Solum Vol 16, No 1 (2019): JURNAL SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jsolum.16.1.11-18.2019

Abstract

Ultisol is broad suboptimal soils, need to be developed to increase for foods and animal feeds, but properties of physics and chemistry by the soils bad. This research was aimed to studied the influence of compost derived from titonia plus rice straw in improving chemical properties of Ultisol and corn production. This researh was conducted in glasshouse and Soil Laboratory of Agriculture Faculty, Andalas University, Padang, West Sumatra, Indonesia from January to July 2017. The experiment consisted of 5 treatments (0.00; 2.50; 5.00;7.50; 10.00 tonha-1. with 3 replications. Soil data resulted were compared to the soil criteria, while corn data were statistically analyzed the variance and continued using DNMRT at 0.05 level of significance, if F-calculated > F-table. The results of research showed that optimum dosage for repaired chemical properties of 7,50 tonha-1. It dosage soil pH 6,18 unit; available P by 17,64ppm; CEC by 18,38cmol(kg)-1; organic-C by 1,27%, total-N by 0,23%; K-exch. by 0,49cmol(kg)-1; Ca-exch. by 2,63  cmol(kg)-1; Mg-exch. by 0,57cmol(kg)-1 dan Na-exch. by 0,39cmol(kg)-1, with dry weight of seed by 85,48gpot-1; dry weight of straw by 75,84gpot-1 and dry weight of 100 seed by 25,50g. Key words : Compost derived from titonia plus rice straw, corn, Ultisol.
EFFECT OF L-TRP ON PERFORMANCE OF IAA PRODUCING RHIZOBACTERIA ON GROWTH OF SWEETPOTATO (IPOMOEA BATATAS L.) Maira, Lusi
Jurnal Solum Vol 1, No 1 (2004): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/js.1.1.26-36.2004

Abstract

Penelitian tentang penambahan L-Triptophan (TRP) pada rhizobakteri penghasil IAA terhadap tanaman ubi jalar yang merupakan percobaan pot bertujuan untuk melihat pengaruh dari L-TRP dan inokulasi isolat rhizobakteri pada pertumbuhan dan hasil ubi jalar, populasi bakteri dan jamur tanah serta kandungan nutrien pada tanah pasir bekas galian tambang timah di Malaysia. Penelitian ini merupakan percobaan pot yang disusun secara Acak lengkap (RAL) yang menggunakan tiga isolat rhizobakteri penghasil IAA yang juga berasal dari perakaran ubi jalar. Dari penelitian ini didapati bahwa isolat rhizobakteri SPR 66 mampu meningkatkan berat kering bahagian atas, kandungan klorofil dan jumlah luas daun, sedangkan isolat SPR 100 mempengaruhi berat kering dan volume akar, pembentukan ubi, kandungan nutrien tanaman dan nutrien tanah. Pemberian L-TRP kepada semua isolat terpilih cendrung meningkatkan pembesaran dan hasil tanaman ubi jalar. Peningkatan ini berkaitan dengan peningkatan keadaan kimia dan aktivitas mikroorganisme di dalam tanah.
KESESUAIAN LAHAN DAN POTENSI PRODUKSI TANAMAN GAMBIR DI KABUPATEN PESISIR SELATAN SUMATERA BARAT Juniarti, J; Yuzirwan, Y; Fiantis, Dian
Jurnal Solum Vol 1, No 1 (2004): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/js.1.1.37-46.2004

Abstract

The land suitability study for gambir crop (Uncaria gambir, Roxb) in the buffer zone of the National Park of Kerinci Seblat (Taman Nasional Kerinci Seblat) at Salido Saribulan, sub district IV Jurai, Pesisir Selatan was investigated. The objective of this study was to estimate the land suitability for gambir in Salido Saribulan. The soils were sampled in composite ways for analyses in laboratory. The results showed that according to climatic and physical land condition, the studied area was considered as class S1 (highly suitable). However, based on land suitability class, it was grouped as S3f (marginally suitable with some constraints in the availability of soil nutrients). We suggested that to increase gambir production in the studied area can be done by adding some fertilizers both organic and inorganic ones.
CHARACTERISTICS OF MECHANICALLY FRACTIONATED AGGREGATES OF TWO CONTRASTING SOILS Yulnafatmaawita, Ita
Jurnal Solum Vol 1, No 1 (2004): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/js.1.1.1-8.2004

Abstract

Tillage often decreases physical condition of agricultural land, especially aggregate degradation which causes land and environmental quality decreased. As aggregates disperse into single particles, chemical properties of the soil could change. The objective of this research was to study whether or not mechanical fractionation causes soil dispersion indicating by different chemical properties. Aggregates of two soils, Vertisol and Oxisol, were degraded by using puddler at 3 different energy rates (40, 60, and 150 J kg-1 soil minute-1) and then were separated into 3 different sizes (2000-20, 20-2, <2 um). Therefore, each soil sample would have 15 soil separates at different energy and aggregate size. The result showed that aggregate fractionation especially the fraction size, in general, affected EC, ESP, and CEC but not pH of both soils. The pattern of EC and CEC values seemed to be equal, the highest values were found at the smallest aggregate size (< 2 um). The CEC values of Oxisols did not affected by fractionation, while CEC values of Vertisols increased by decreasing aggregate size, and decreased by increasing energy applied. This indicated that Vertisol is easier to disperse than Oxisol.
PEMBENTUKAN ASAM HUMAT DAN FULVAT SELAMA PEMBUATAN KOMPOS JERAMI PADI Agustian, A
Jurnal Solum Vol 1, No 1 (2004): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/js.1.1.9-14.2004

Abstract

Production of humic substances during the composting of organic matter becomes one criterion of compost quality. The objectives of this study were to measure and quantify the amounts of humic substances produced during the composting of rice straw by commercial decomposer, Effective Microorganism 4 (EM4). The experiment was carried out by using twenty kilograms of rice straw with C/N ratio 105 and containing 32.28% of cellulose and 4.48% lignin. The treatment essayed was the quantity EM4 applied i.e 10, 20, 30 ml and without inoculation as control. Experimental design used was Completely Randomized Design with three replications. Parameters observed are C/N ratio, humic acid, fulvic acid, and humification ratio. The results clearly showed that the increase of EM4 applied was closely related with the sum of humic substances, humic acid, and fulvic acid produced. The significance results were observed after 60 days applying compost with 30 ml EM4. It could be concluded that the quantity of EM4 applied to determine the rate of compost maturity as indicated by the value of humification ratio, was significantly different. On the other hand, the low contents of lignin in rice straw might also determine humic and fulvic acid formation.
KURVA SORPSI FOSFAT MENURUT LANGMUIR DAN FREUNDLICH SEBAGAI PENDUGA KEBUTUHAN PUPUK FOSFAT PADA ANDISOLS SUMATERA BARAT Fiantis, Dian
Jurnal Solum Vol 1, No 1 (2004): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/js.1.1.15-25.2004

Abstract

Andisols are among the most productive soils in the world, but these soils also strongly retained phosphate. The high capacity for phosphate sorption in Andisols is due to their high content of active Al and Fe compounds. The objectives of this study were to assess the effect of soil properties on P sorption, buffer capacities and requirements of some benchmark soil profiles in Mt. Marapi and Mt. Pasaman. The P sorption characteristics of Andisols from West Sumatra were described using Langmuir and Freundlich equations. The P sorption maximum in Mt. Pasaman soils was higher than in Mt. Marapi soils. The most important soil properties affecting P sorption and buffer capacities were oxalate Si and Fe, Al (Sio Feo and Alo), dithionite Al (Ald), pyrophosphate Al (Alp), which explained 89% of the variance in sorption maxima and 83% of P buffering indices. Allophane, Alo and Ald were positively correlated with P sorption maximum. Contrary to general assumption that organic matter had an inverse relation with P sorption maxima, in this study, however, there was no trend observed between P sorption maxima and organic carbon. Organic C has poor relationship with this parameter. Andisols from Mt. Marapi and Mt. Pasaman need P input between 320 to 7,800 mg P kg-1 to maintain the P level in soil solution at 0.2 mg kg-1.
SIFAT KIMIA TANAH DAN POPULASI KUMBANG TANDUK (Oryctes rhinoceros L.) STADIA PRADEWASA PADA BERBAGAI KEDALAMAN PENEMPATAN TANDAN KOSONG KELAPA SAWIT Fauzana, Hafiz; Alfasiri, Ayubi; Nelvia, Nelvia
Jurnal Solum Vol 16, No 1 (2019): JURNAL SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jsolum.16.1.1-10.2019

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jsolum.16.1.19-28.2019

Abstract

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
PEMANFAATAN ABU JENJANG KELAPA SAWIT SEBAGAI SUMBER K PADA TANAH GAMBUT DAN PENGARUHNYA TERHADAP PRODUKSI JAGUNG Prasetyo, Teguh Budi
Jurnal Solum Vol 6, No 2 (2009): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/js.6.2.95-100.2009

Abstract

This research was conducted in Green House at Agriculture Faculty of Andalas University from September 2000 to Maret 2001.  The objective of the research was to study of  the ash of oil palm stem as K source and to determine optimum level to corn production on peat soils.  The experiment was designed on Complete Randomized Design with 9 treatments and 3 replications.  The treatments consisted of without oil palm ash, 100, 200, 400, 600, 800 kg/ha and 100, 200 kg KCl/ha.  The result showed that application of the ash of oil palm can increase  pH and K  soil content.  The highest pH and K soil content was obtained with 1000 kg ash/ha namely 5,56 and 5,28 me/100 g. Application 400kg ash/ha can substitute 200 kg KCl/ha.  The highest corn yield was obtained with application  800kg ash/ha but not significantly with application 400 and 600 kg/haKey words:  ash, K resource, corn production
PERANAN TIGA SUMBER MULSA TERHADAP BEBERAPA SIFAT FISIKA ULTISOL DAN HASIL JAGUNG SEMI (Zea mays L)” Asmar, Asmar; Adrinal, Adrinal
Jurnal Solum Vol 3, No 2 (2006): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/js.3.2.65-74.2006

Abstract

A research about the role of three sources of mulch on soil physical properties of Ultisol and yield of baby corn was conducted on experimental farm, Faculty of Agriculture, Andalas University and at soil laboratory of Andalas University and University of Jambi.  The research was aimed to evaluate three mulch sources (paddy straw, coconut fibre, and used paper) on several soil physical properties of Ultisols and babby corn yield. The results showed that mulch applied did not affect babby corn yield and soil physical properties of Ultisol except on plant available water.  In addition, paddy straw mulch gave better effect to soil physical properties of Ultisols and babby corn yield compared to the others.Key Words: Mulch, paddy straw, coconut fibre, used paper, Ultisols

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