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Jurnal Solum
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 4 Documents
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Search results for , issue "Vol 18, No 1 (2021)" : 4 Documents clear
PENGARUH JENIS DAN CARA APLIKASI BAHAN ORGANIK TERHADAP HASIL PADI (ORYZA SATIVA L.) DI MEDIA TANAM GAMBUT Hapsoh Hapsoh; Isna Rahma Dini; Wawan Wawan; David Panusunan Natanael
Jurnal Solum Vol 18, No 1 (2021)
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (172.258 KB) | DOI: 10.25077/jsolum.18.1.1-11.2021

Abstract

This study aims to determine the types and ways of application of organic matter and the combination of both of the rice yields in peat growing media. This research has been carried out in the Experimental Garden of the Faculty of Agric ulture, Riau University, Campus Bina Widya Km 12.5, Simpang Baru Panam Sub-District, Tampan District, Pekanbaru, Riau. This research was carried out for 4 months, starting from May to August 2018. The research was conducted experimentally arranged according to a completely randomized design (CRD) factorial pattern consisting of 2 factors. Factor I: organic matter of plant waste (O), namely: O1 (125 g rice straw), O2 (125 g soybean litter), O3 (oil palm empty fruit bunches 125 g) and Fact II: how to apply organic material (C), namely: C1 (mixed) and C2 (spread). The results obtained were analyzed using variance analysis and continued with the double range duncan's new multiple range test (DNMRT) at 5% level. However, the type of organic rice paddy yields results in the weight of the milled dry grain which is 106.94 g-138.23 g, the weight of 1,000 grains that is 26.40 g-26.95 g and soybean litter on the percentage of rice grain grain 86.24 g-88.00 g. Giving application method in the distribution gives results on the weight of dry milled unhulled rice that is 125.21 g-126.02 g, the weight of 1,000 grains that is 26.65 g-26.79 g and the percentage of unhulled grain that is 86.76 g-87 , 74 g and the combination of the type of organic rice paddy and the application method in the distribution gives the results of the weight of the milled dry rice which is 102.94 g - 140.87 g, the weight of 1,000 items, which is between 26.29 g - 27.27 g and soybean litter organic material types and application method are mixed namely 84.94 g - 88.50 g.Key words : application method, rice plant, rice straw, soybean litter, TKKS.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (156.202 KB) | DOI: 10.25077/jsolum.18.1.12-22.2021

Abstract

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.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (240.77 KB) | DOI: 10.25077/jsolum.18.1.23-31.2021

Abstract

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
SIFAT FISIKOKIMIA LAHAN PERTANIAN MONOKULTUR PADA BEBERAPA KELAS LERENG DI DAERAH UTARA KAKI GUNUNG TALANG Junaidi Junaidi; Mimien Harianti; Oktanis Emalinda; Herviyanti Herviyanti; Azizah R
Jurnal Solum Vol 18, No 1 (2021)
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (276.922 KB) | DOI: 10.25077/jsolum.18.1.33-44.2021

Abstract

The area at the foot of Mount Talang is one of the areas that excellent in agriculture, especially the cultivation of horticultural crops. In the northern area with steep slope conditions, the local community applies an intensive monoculture cropping system, this will accelerate land degradation in the long term. This study aims to examine the physicochemical properties of monoculture agricultural land in the northern foothills of Mount Talang on several slopes. This research was conducted with a survey method, soil sampling was carried out by means of purposive random sampling, on monoculture agricultural land on slopes > 45%, 25-45%, 15-25%, and 8-15% and forest as control, at a depth of 0 -20cm and 20-40cm. The results showed that the soil texture that dominates at the forest and monoculture agricultural land are dusty loam. Soil water content increases with increasing soil layer depth, soil water content in monocultures 25-45% (73.72%) is the highest. Soil volume weight ranging from 0.4-0.6 g / cm3 has the same tendency at both soil depths. The total pore space of forest land and monoculture agricultural land is a large average of 75% with high criteria. The highest soil organic C content was found in monoculture agricultural land with a slope of >45%. The pH value of H2O for all land uses was 5.15-5.29 and the pH for KCl was 4.5-5.2 for acid criteria. The cation exchange capacity was above 40 me/100g (very high criteria), the total N content was 0.8-1.6% with very high criteria, too. Based on the researchs data, the physicochemical properties of monoculture agricultural land on several slope classes matched the physiochemical conditions of the forest. The potential for land degradation is still minimal even though it is on the upper slopes of the foot of Mount Talang. However, monoculture farming while maintaining soil organic matter content must remain a priority for agricultural land management in this area.Key words: monoculture land, forest, slope, North area of foot Mount Talang

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