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Jurnal Solum

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Published by Universitas Andalas

ISSN : 18297994 EISSN : 02560835 DOI : https://doi.org/10.2057/jsolum

Core Subject : Agriculture, Social,

Agriculture, Biological Sciences & Forestry Environmental Science

Focuses and scopes of Jurnal Solum is to publishes all aspects in the original research of soil science or review covering: Soil physic and soil conservation, Soil mineralogy, Soil chemistry and soil fertility, Soil biology and soil biochemical, Soil genesis and classification, Land survey and land evaluation, Land development and management environmental.

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Tanah

Articles 173 Documents

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EFEKTIVITAS BERBAGAI FUNGI MIKORIZA ARBUSKULAR INDIGENUS TERHADAP SERAPAN HARA P DAN PERTUMBUHAN TANAMAN JARAK PAGAR (Jatropha curcas L.) Muzakkir Muzakkir; Eti Farda Husin; Agustian Agustian; Auzar Syarif
Jurnal Solum Vol 7, No 2 (2010): JURNAL SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Utilization of arbuscular mycorrhizae fungi (FMA) is an alternative way to improve soil fertility. Therefore, it must be developed by studying deeply the effectivity of the FMA. This is important due to either its ability to associate with almost all of vegetation family in terrestrial ecosystems or its ability to increase plant growth rate, seedlings quality, and crop yield, especially on critical land. A research about effectivity of variously indigenous arbuscular mycorrhizae fungi on P-sorption and Jatropha growth was conducted at laboratorium and glasshouse Agriculture Faculty, Andalas University. This research was aimed to gain the most effective isolate of arbuscular mycorrhizae fungi on growth of and P-sorption by Jatropha (Jatropha curcas L.) plant on critical land. Single isolat such as Glomus sp2, Acaulospora sp1, Gigaspora sp1, and compound isolate M7 (Glomus sp2,+ Acaulospora sp1 + Gigaspora sp1) significantly affected plant height, canopy dry matter, infection percentage and intensity, and P-sorption. M7 Compound isolate was the most effective innoculum. By this isolate, height of Jatropha seedlings was 27.5 cm, canopy dry matter 5.9 g, infection percentage 78.5%, infection intensity was 49.1, and P-sorption by canopy was 1.6 g for each seedling. Keywords: Effectiveness of FMA

INKUBASI TITONIA PADA TANAH SAWAH TERHADAP ASAM-ASAM ORGANIK Gusnidar Gusnidar; Nurhajati Hakim; Teguh Budi Prasetyo
Jurnal Solum Vol 7, No 1 (2010): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

The research about “Incubation of titonia for organic acid production in rice field” has been conducted in soil laboratory Agriculture Collage Andalas University Padang, since January to August 2005. The objective of this research was to determine the best method of using titonia to produce organic acids in rice field. The research had 2 factors, 3 series of titonia application and 5 levels of titonia dossages with 3 replications. The series are: A1 = Titonia was mixed with soil and then, the soil was directly flooded; A2 = Titonia was mixed with soil and then, let them stay on soil surface for 3 weeks before being flooded; A3 = Titonia was mixed with soil and then, the soil was moistened until field capacity for 3 weeks before being flooded. The second factor was titonia dossages (0,000; 1,250; 2,500; 3,750; 5,000 g dry weight of titonia per kg soil). The result showed that organic acids of the soil had been changed as a consequence of titonia application and the incubation with soil. The highest organic acid production was found at combination of titonia incubation with soil at field capacity for 3 weeks, that was malat acid (184-489 mgl-1). The others detected were citrate, tartarate, malate, and benzoat acids, butt fenolate acids was not detected. Keywords: incubation, organic acids, rice field, titonia.

AKTIFITAS PEMUPUKAN FOSFOR (P) PADA LAHAN SAWAH DENGAN KANDUNGAN P-SEDANG Yulinar Zubaidah; Rafli Munir
Jurnal Solum Vol 4, No 1 (2007): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

This experiment was conducted at famer’s field in Kasang, Padang Pariaman Regency from July to November 2000. The experiment was designed in a randomized block design (RBD) with the treatment was five levels of SP36 fertilizer ( 0, 50, 75, 100, and 125 Kg/ha) and P starter (20 kg SP36/ha) with three replications. The results showed that the plant height was not affected by application of P fertilizer. Increasing P application tended to increase yield of rice. Application of 125 Kg SP36/ha gave the highest grain yield 7,6 ton/ha.Keywords: Soil P-Status, Rice field, P-fertilizer

PENGARUH PEMBERIAN KOMPOS SAMPAH KOTA DAN UREA, TSP, KCL PADA REGOSOL TERHADAP SERAPAN HARA N, P, K, TANAMAN SELADA ( Lactuca sativa L ) Asmar Asmar; Irwan Darfis
Jurnal Solum Vol 6, No 1 (2009): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

A research about Effect of compost as well as Urea, TSP, and KCl fertilizer application in Regosol on nutrient N, P, K uptake by lettuce (Lactuca sativa, L), had been conducted from April to November 2008 in Glasshouse, agriculture Faculty Andalas University Padang. The objective of the research was to determine the effects of organic fertilizer (compost of market waste) appication and the best NPK fertilizer dossages on soil chemical properties of Regosol planted by lettuce. This research was a pot trial by using factorial design which was allocated as completely randomized in Glasshouse. There were two factors, 4 x 4 treatments tested in this experiment, with 3 replications. The first factor was dossage of compost {K0 = Without compost, K1 = 2,5 ton/ha (10 g/pot), K2 = 5 ton/ha (20 g/pot), K3 = 10 ton/ha (40 g/pot)} and the second factor was NPK dossage (P0 = Without NPK, P1 = 25 % NPK recommendation, P2 = 50 % NPK recommendation, P3 = 100 % NPK recommendation). The data of this research were tested by using F-test at 5% level, and then continued by using HSD test. The results showed that application of 10 ton compost / ha could gave the highest pH value, total N, available P, CEC, Ca-exch, Mg-exch, K-exch, and Na-exch, but decreased Org-C of the soil. In general, the best interaction of both treatments was found under combination of 5 ton compost/ha and 25% NPK recommendation for plant growth, plant dry matter, and NPK uptake by plants. Based on the research conducted, it was suggested that the best input for lettuce grown on Regosol was combination between 5 ton compost/ha and 25% NPK recommendation for the plants.Key Words: Compost, Regosol, Lettuce

Respon Tanaman Padi (Oryza sativa L.) Kabir 07 Terhadap Pupuk Organik Cair Crocober Plus Khusus Kota Padang dengan Iklim Af Jamilah Jamilah; Ben Kurniawan; Welly Herman
Jurnal Solum Vol 14, No 1 (2017): JURNAL SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/js.14.1.18-27.2017

Tujuan penelitian adalah mendapatkan konsentrasi terendah Pupuk organik cair Crocober Plus (POC CP) dalam menghasilkan pertumbuhan dan hasil padi (Oryza sativa L.) yang optimal sesuai dengan iklim agroklimat setempat. Percobaan dilaksanakan sejak Oktober 2016 hingga Maret 2017 di Kelurahan Lubuk Minturun, Kecamatan Koto Tangah Padang. Bahan yang dibutuhkan adalah padi Varietas Kabir, Pupuk buatan Urea, Zwavelzur Ammonia (ZA), SP-36 dan KCl, POC CP asal Fakultas Pertanian, ajir tonggak kayu, waring sungkup. Percobaan disusun dalam Rancangan Acak Lengkap, dengan 6 konsentrasi pemberian Pupuk organik Cair Crocober Plus(CP) (v/v) dengan air, yaitu; 0 ml L-1 (F0); 25 ml L-1 (F1), 50 ml L-1 (F2), 75 ml L-1 (F3), 100 ml L-1 (F4); 125 ml L-1 (F5), dan 3 ulangan. Bibit padi ditanam dengan jarak tanam 25 x 25 cm, dan ukuran plot 2 x 2 m. Data yang diperoleh dianalisis menggunakan analysis of variance (ANOVA) taraf nyata 5%. Jika perlakuan berpengaruh nyata dilanjutkan dengan uji BNT taraf nyata 5%. Parameter yang diamati antara lain; tinggi tanaman, jumlah anakan maksimum dan produktif, umur berbunga, panen, panjang malai, jumlah gabah per malai, bobot 1000 biji, berat gabah kering giling per hektar, persentase gabah hampa dan indek panen. Hasil percobaan membuktikan bahwa Pemberian 50 ml L-1 pupuk Organik Cair Crocober plus yang diberikan setiap 2 minggu sekali sejak 2 minggu pindah tanam hingga fase pengisian gabah mampu meningkatkan pertumbuhan dan hasil padi varietas Kabir. Hasil padi tertinggi mencapai 6,34 ton ha-1 gabah kering giling, dengan indek panen mencapai 0,53. Hasil ini masih rendah, berkisar 50% dari kemampuan padi Kabir 07 yang ditanam di Kawasan Aceh atau Jawa Tengah.

KERAGAMAN BAKTERI PENAMBAT N PADA RHIZOSFIR TITONIA (Tithonia diversifolia) YANG TUMBUH PADA TANAH MASAM ULTISOL Agustian Agustian; Rimadhani Syafei; Lusi Maira
Jurnal Solum Vol 9, No 2 (2012): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Research on biodiversity of N-fix bacteria was performed on rhizosphere of Tithonia diversifolia grown at acid soil Ultisol. This study aimed to determine the biodiversity and populations of N-fix bacteria along with the growth rate of Tithonia and characterized the bacterial isolates obtained from the rhizosphere of this plant. Soil rhizosphere samples were taken from rhizospheres of Tithonia with different criteria of stem diameter i.e Ø <3 cm, and 3 to 6 cm that grown at Faculty of Agriculture Andalas University experimental station.From these results it can be concluded that the diverse and larger population were found in Tithonia with 3 to 6 cm stem diameter an average of 19.7 x 103 cfu per g of soil. N-fix bacterial isolates obtained have a round, slimy, slippery and convex colonies and gram variable. Based on the color of their colonies, N-fix bacterial isolates obtained were classified into 3 groups with the following characteristics: (1) white milk isolates (A1ps, a2ps, B3ps), flourescent white and yellow, have flagella and produce auxin, (2) yellow isolate (B2K and B3K), with yellow flourescent, have flagella and produce auxin, and (3) the clear isolates that could separated into two groups i.e the flourescent group and produce auxin and has flagella isolates (A2b, A3b, and B2b) and non flourescent group, no flagella and does not produce auxin isolates (B1b, B3B). The optimum growth conditions for the all isolates were pH media nearly 7 with 35o C incubation temperature. The translucent isolates (A3b and B3B) have a optimum range pH from 4.36 to 6.17, while isolates with a yellow colonies (B2K) has a range of incubation temperature 25oC to 35oC. However, from the characterization performed could not permit to specify the isolates obtained into species.Key words : Biodiversity, N-fix bacteria, rhizosphere, Tithonia diversifolia

PENGARUH PEMBERIAN ABU SEKAM SEBAGAI SUMBER SILIKA (SI) BAGI PERTUMBUHAN DAN PRODUKSI TANAMAN PADI (Oriza sativa l.) Teguh Budi Prasetyo; Irwan Darfis; Rahmi Fitri
Jurnal Solum Vol 5, No 1 (2008): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

This research was conducted in greenhouse at Agriculture Faculty of Andalas University from August 2006 to February 2007. The objective of the research was to study the effect of fly ash as silicon (Si) resource for plant growth and rice production. The experiment was designed on Completely Randomized Block Design in four treatments and three replicates. The treatments consisted of without fly ash, 1400 kg/ha, 2800 kg/ha and 5600 kg/ha fly ash. The results showed that fly ash could increase available fosfor, silica, cations and reduce Aluminium of the soil. Fly ash could also increase production and absorbtion of fosfor and plant silicon.Key words : Fly ash, silicon, and rice production

efek Residu Pengapuran dan Pupuk Kandang Terhadap basa-basa dapat ditukarkan pada ultisol dan Hasil Kedelai Yunus Yunus
Jurnal Solum Vol 3, No 1 (2006): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

This research was aimed to study liming residual effect and manure to exchangeable bases at Ultisols and soybean yield. The research was conducted from March until July 2005 in the Experimental Station Faculty of Agriculture, University of Jambi. The experiment was in factorial design which was arranged within randomized block design (RBD). The treatment consisted 2 factors, the first was manure residue (b) : b0 = 0 ton/ha, b1 = 10 ton ton/ha, b2 = 20 ton/ha, the second factor was lime residue (c) : c0 = 0,0 x exch-Al, c1 = 1,0 x exch-Al, c2 = 2,0 x exch-Al. The result indicated that there was an interaction between manure and lime residue to exch-Ca and -Al, base saturation, and Al saturation. Meanwhile, prominent factor from manure residue could improve soybean yield. Key Words: Al-saturation, Soybean yield, liming

PENGARUH PEMBERIAN BAHAN HUMAT DARI EKSTRAK BATUBARA MUDA (Subbituminus) DAN PUPUK P TERHADAP SIFAT KIMIA ULTISOL SERTA PRODUKSI TANAMAN JAGUNG (Zea mays L.) Herviyanti Herviyanti; Fachri Ahmad; Riza Sofiyani; Darmawan Darmawan; Gusnidar Gusnidar; Amrizal Saidi
Jurnal Solum Vol 9, No 1 (2012): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

The purpose of this research is to study interaction of humic substances extracted from subbituminus coal with P fertilizer on the chemical properties of Ultisol and crop production of corn (Zea mays L.). The experiment was designed in completely randomized design having 2 factors (4 x 4) with 3 replications. The first factor was dose of humic substances (A) which consists of 4 levels (A1 = 0 ppm, A2 = 400 ppm, A3 = 800 ppm, and A4 = 1200 ppm). The second factor was level of fertilizer P (B) (B1 = 100% recommendation, B2 = 75% recommendation, B3 = 50% recommendation, and B4 = 25%). The result showed that : 1) There is no interaction between humic substances and P fertilizer on the chemical nature of Ultisol and crop production of corn (Zea mays L.) 2) Use of humic substance for 800 ppm with some level of P fertilizer could improve some chemical properties of Ultisol such as decreased in content of Al-exch by 0,38 me/100 g soil, increased in P-available by 22,16 ppm, CEC by 8,42 me/100 g soil and P nutrient by 0,10 %, as well as corn yield by 25,67 g/pot compared to soil without humic substances 3) The use of SP-36 for 50 % with some level of humic substances increased in plant height by 26,58 cm, P nutrient by 0,11 %, and the use of 75 % SP-36 increased corn yield by 5,84 g/pot compared to 25% of P recommended.Keywords : humic subtances, subbituminus coal, P fertilizer.

RESPON PERTUMBUHAN Tithonia diversifolia TERHADAP INOKULASI CENDAWAN MIKORIZA ARBUSKULA (CMA) Agustian Agustian; Mutia Faiza; Lusi Maira
Jurnal Solum Vol 8, No 2 (2011): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

The success of symbiotic arbuscular mycorrhizal fungi (AMF) in plants was determined by three main factors namely by edaphic factors (environment), genetic and physiological plants and fungi. In this study AMF inoculations were attempted in Tithonia (Tithonia diversifolia) which is known as Mexican sunflower that is often used as a source of green manure. The purpose of this study was to find out AMF species that has the highest physiological compatibility with Tithonia and to study the effects of AMF species on Tithonia growth. Experimental design used in this study was Completely Randomized Design (CRD) with 5 treatments and 3 replications. The data were statistically analyzed the variance, if the value of F-calculated was larger than that of F-table, then the analyses were continued using DNMRT at 5% level of significance. The treatment given were: without AMF, giving inoculant Glomus manihottis, Glomus etunicatum, Gigaspora margarita and a mixture of AMF. The number of spores that are given at each treatment was 100 spores / pot. From this study it could be concluded that Tithonia species could be infected by the inoculated AMF. AMF infection had not yet demonstrated beneficial effects for Tithonia although the frequency of infection and the number of spores on rhizosphere were also high. Inoculation of G., Glomus manihottis, G. etunicatum, and a mixture of AMF did not have a significant influence on plant height, stem and leaf dry weight, fresh and dry weight of roots. Response of Tithonia growth were shown only on the fresh weight of stems and leaves that are found with the inoculation of G. margarita.Keywords: arbuscular mycorrhiza, growth, innoculation, Tithonia diversifolia,

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