cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Dermiyati
Contact Email
dermiyati.1963@fp.unila.ac.id
Phone
+62721781822
Journal Mail Official
j.tnhtrop@gmail.com
Editorial Address
Faculty of Agriculture, University of Lampung, Jl. Sumantri Brojonegoro No. 1, Bandarlampung 35145, Indonesia
Location
Kota bandar lampung,
Lampung
INDONESIA
Journal of Tropical Soils
Published by Universitas Lampung
ISSN : 0852257X     EISSN : 20866682     DOI : http://dx.doi.org/10.5400/jts.v25i1
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Journal of Tropical Soils (JTS) publishes all aspects in the original research of soil science (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), and related subjects in which using soil from tropical areas.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Konservasi Alam dan Lahan
Articles 812 Documents
 74   75   76   77   78 
The Effect of Rice Husk Biochar and Cow Manure on Some Soil Characteristics, N and P Uptake and Plant Growth of Soybean in Alfisol Supriyadi, Slamet; Widjajani, Bakti Wisnu; Murniyanto, Eko
JOURNAL OF TROPICAL SOILS Vol. 27 No. 2: May 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i2.59-66

Abstract

The effect of biochar on dryland in Madura has not been fully assessed. The objective of this study was to investigate the effect of biochar and animal manure on some soil characteristics, namely water content at field capacity, CEC, N total, available P, and N and P absorption, and plant growth of soybean in Alfisol. The research was arranged on a Randomized Completely Block Design (RCBD) with four replications. Rice husk biochar was mixed with cow manure and applied at the range of 2.5 - 10 Mg ha-1. The result showed that biochar (2.5 Mg ha-1) and cow manure (7.5 Mg ha-1) improved soil characteristics, plant growth, and soybean yield by 22%. Cow manure in this study would function as a source of nutrients while rice husk biochar acted as storage of nutrients that were then released slowly to soil solution for plant uptake. It was concluded that the mixture of 2.5 Mg rice husk biochar ha-1 and 7.5 Mg cow manure ha-1 could be the best combination of soil amendments to apply in an Alfisol in Madura.
Soil Chemical Properties and Agronomic Response of Sugarcane (Saccharum officinarum L.) Affected by Long Term No-Tillage Practice and Bagasse Mulch Application Zaqyah, Irene; Niswati, Ainin; Evizal, Rusdi; Utomo, Muhajir
JOURNAL OF TROPICAL SOILS Vol. 27 No. 2: May 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i2.67-77

Abstract

Intensive tillage will continuously reduce soil quality, characterized by decreased soil organic-C. Low soil organic-C indicates the disturbance of soil fertility. More conservative soil management experiments have been done for seven years to restore the soil quality for sugarcane (Saccharum officinarum L.) productivity. This research aimed to study the effect of the tillage system, bagasse mulch, and their interactions on soil chemical properties and sugarcane agronomic response. The research was conducted on a Split Plot of five groups. The main plot was the tillage system consisting of intensive tillage and no-tillage, while the subplot was the bagasse mulch consisting of bagasse mulch and no-bagasse mulch. This study found that in sugarcane cultivation, no-tillage system was beneficial for soil P-available, sugarcane length, and sugarcane ripening; bagasse mulch was beneficial for soil organic-C and also soil P-available. The no-tillage system to increase P-available can be combined with bagasse mulch or no-bagasse mulch, but the no-tillage system combined with no-bagasse mulch increases the percentage of gap in sugarcane cultivation.
Application of Biocom-Phosphate Solubilizing Fungi and Coal Fly-Ash to Increase P-Availability of Peat Soil in Kalimantan Ichriani, Gusti Irya; Ifansyah, Hairil; Maulana, Agus; Fauwziah, Ema Rizki; Syifa, Muhammad; Lautt, Bambang Supriyono; Jaya, Adi; Chusnul Chotimah, Hastin Ernawati Nur; Pasaribu, Wiranda
JOURNAL OF TROPICAL SOILS Vol. 27 No. 3: September 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i3.111-119

Abstract

The peatlands have the potential to support food security efforts. However, there is have constraints on soil fertility, especially the P nutrients availability. The biotechnology approach, the application of ameliorant (biochar-compost carrier medium (biocom)) enriched with phosphate solubilizing fungi (PSF) and coal fly ash (CFA), was expected to increase the P-availability in peat soils. The research aimed to study the application of biocom enriched with PSF and CFA to increase soil P-availability and plant P-uptake. The study was conducted using peat soil media with the formulation of CFA and biocom enriched with PSF and CFA as treatments. The treatment effect was observed through soil P available and plant P uptake of maize. The results showed PSF application was inconsistent in improving P available in peat soils in Kalimantan. In Central Kalimantan, Biocom + PSF was able to increase P available in peat soils by up to 406.18% (A. oryzae-Tb7) and 353.44% (N. fischeri-Tm8). However, in South Kalimantan P available in peat soil was only 8.04% (A. oryzae-Tb7) and 12.86% (N. fischeri-Tm8). The CFA+ (biocom+PSF) formulation increased P available in Central Kalimantan peat soils, but it was different from South Kalimantan peat soils. The application of biocom+PSF and CFA has not been able to increase the P uptake of maize plant in peatlands of South Kalimantan.
Effect of Mulch and Strengthened Terrace Strips on Erosion, Sediment Enrichment Ratio, and Nutrient Loss Through Erosion Suyana, Jaka; Nugraheni, Nugraheni
JOURNAL OF TROPICAL SOILS Vol. 27 No. 3: September 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i3.133-145

Abstract

Mulching technology is accessible to farmers and can also reduce soil erosion and nutrient loss through erosion. This research aimed to observe the effectiveness of the combination treatment of strengthened terrace strips and maize stalk mulch on runoff, erosion, sediment enrichment ratio (SER), and nutrient loss through erosion. The experiment was conducted on upland farming on Andisol at the end of the rainy season. The erosion plot experiment was arranged in a Randomized Block Design (RBD) with the treatment of 4 doses of maize stalks mulch (0, 4, 8, and 12 Mg ha-1) and three types of strengthened terrace strips (Jali, Vetiver, and Kalanjana grass) put in groups/blocks, giving 12 experiments. The combination treatment of maize stalk mulch and strengthened terrace strips has not significantly reduced runoff and soil loss. The treatment mulch dose of 12 Mg  ha-1 reduced runoff and soil loss by 9.9% and 21.9% compared to without mulch. The application of maize stalks mulch tends to reduce the sediment concentration and the number of nutrients (N and Organic C) lost through erosion but increases the nutrient concentration in sediments (SER value).
Land Suitability Evaluation on Pepper Plant in Bireuen Regency, Aceh Province yusra, yusra yusra; Muliana, Muliana; Khusrizal, Khusrizal; Aryani, Dewi Sartika
JOURNAL OF TROPICAL SOILS Vol. 27 No. 3: September 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i3.147-156

Abstract

Pepper plant development requires data and information on land potential and land suitability class assessment based on the physical and chemical properties criteria so that the land can be productive. The study aimed to determine the land suitability class for pepper plants in Bireuen Regency. The research was conducted in Bireuen Regency. The unit land map (Satuan Peta Lahan, SPL) resulting from the overlay of the slope map, land use map, and soil type map was used in this study. The method used is a survey method with a land unit approach consisting of four stages: (1) preparation stage, (2) preliminary survey, (3) main survey, and (4) presentation of results. The results showed that the land had good to poor drainage, soil depth >75 cm, flat to steep slopes, mild to very heavy erosion hazard, dusty clay texture, low to high cation exchange capacity (CEC), slightly acidic to slightly alkaline pH, low organic C, Base Saturation (BS) is low to high, N total is low to very low, P2O5 is very low, and K2O is very low. Land suitability class for pepper plants in Bireuen Regency includes marginal suitability (S3) with limiting factors in the form of drainage, texture, CEC, BS, N-total, P2O5, K2O, slope, and erosion hazard. Improvements include making rorak, planting contours, drainage systems, applying manure or compost, and planting cover crops.
The Behavior of Ammonium Exchange (Q/I) in Soil, Nitrogen and Carbon Uptake, and Mung Beans (Vigna radiata L.) Yields as Affected by Tillage and Fertilization at the Sixth Planting Period in Ultisol Soil Aini, Septi Nurul; Nurtyas, Omita Mega; Lumbanraja, Jamalam; Salam, Abdul Kadir
JOURNAL OF TROPICAL SOILS Vol. 27 No. 3: September 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i3.121-131

Abstract

Ultisol soil has a low organic matter content, CEC, and pH, causing an insufficient buffering capacity for N nutrients, especially NH4+. The objective of this study was to determine the effect of tillage and fertilization on the quantity and intensity (Q/I) of Ammonium (CRNH40, PBCNH4+, NH40, KG) in the soil, plant N and C uptake, and mung bean yields at the sixth growing season in ultisols. This study was arranged in a 2 × 2 factorial in a Randomized Block Design (RBD). The first factor was the tillage system (T), namely minimum tillage (T0) and intensive tillage (T1). The second factor was the fertilization (P), namely without fertilizer application (P0), and with fertilizer application (NPK 200 kg ha-1 + 1 Mg ha-1 chicken manure) (P1). Each treatment was replicated four times. The results showed that the application of NPK fertilizer significantly affected the mung bean yield, mung bean plant Nitrogen and Carbon uptake at harvest time. While, the intensive tillage had a very significant effect on increasing the N uptake compared to the minimum tillage. Minimum tillage and fertilization increased Q/I parameters (PBCNH4+, KG, CRNH40, and NH40). The parameter of Q/I (CRNH40) was significantly correlated with mung bean plant N and C uptake. PBCNH4+ and KG were significantly correlated with mung bean yields.
An Analyze of Urban Temperature Using Energy Balance Algorithm for Land (SEBAL) in Yogyakarta City Arif, Nursida; Nayan, Nasir
JOURNAL OF TROPICAL SOILS Vol. 28 No. 1: January 2023
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2023.v28i1.31-38

Abstract

This study examines the Land Surface Temperature (LST) using the Surface Energy Balance Algorithm for Land (SEBAL) model in Yogyakarta. SEBAL is relied upon for its accurate LST predictions because it takes into account the influence of vegetation and soil. This study identified LST in various land cover/land use (LULC) types extracted from Landsat 8 remote sensing images recorded in April 2019 (wet day) and June 2019 (dry day). The LULC classification results in the study area show that built-up land is the dominant land use, with 93.30% of the total area, and the rest is non-developed land (vegetation, open land, and water body). The average LST value on a wet day is 26.79 °C, while on a dry day, it is 30°C. The highest temperature occurs on the dry day, 35.17 °C, and the lowest on the wet day, which is 13.63°C. The correlation between LST and LULC shows the same pattern on the two different days, in which the value of vegetation temperature is lower than that of open and developed land. This research proves that vegetation influences a decrease in land surface temperature. Judging from the dominant land use being the built-up area in Yogyakarta, urban planners need to consider increasing green open spaces.
Performance The Red Onion (Allium ascalonicum L.) by Husk Charcoal and Fertilizer K Application Rakhmiati, Rakhmiati; Handayani, Etik Puji; Jamaludin, Jamaludin; Sitompul, Raffel Jubili
JOURNAL OF TROPICAL SOILS Vol. 28 No. 2: May 2023
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2023.v28i2.71-77

Abstract

The cultivation of Red Onions (Allium ascalonicum, L.) in paddy fields needs to be investigated further because paddy fields have constraints on the soil physical and chemical properties, such as soil structure, drainage, pH, and nutrient availability. The application of husk charcoal and K fertilizer is expected to increase the productivity of Red Onions, so it is necessary to study the appropriate dose. The research aimed to determine the effect of the interaction between the application of husk charcoal and KCl fertilizer and the influence of each factor on the growth and yield of Red Onions. The results showed that rice husk charcoal treatment at a dose of 20 Mg ha-1 was effective in increasing the growth and yield of Red Onions compared to rice husk charcoal at a dose of 10 Mg ha-1 and 0 Mg ha-1 (control), as evidenced by the variable shallot plant height, number of leaves, number of tubers per clump, wet tuber weight per clump, and tuber dry weight per clump. KCl fertilizer treatments at doses of 100 kg ha-1, 200 kg ha-1, and 300 kg ha-1 did not significantly affect to growth and yield of Red Onions. There was not interaction between the rice husk charcoal and KCl fertilizer treatments.
Soil Organisms Activities in Red Onion Cultivation with Application of Plant Extract Suspension and Compost Rani, Icha Deska; Dermiyati, Dermiyati; Suharjo, Radix; Niswati, Ainin; Pangaribuan, Darwin Hasibaran
JOURNAL OF TROPICAL SOILS Vol. 27 No. 2: May 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i2.89-98

Abstract

Agro-industrial waste such as banana weevil, pineapple rhizome, and empty fruit bunches of oil palm has not been utilized properly, even though the waste can be processed into liquid organic fertilizer after extracting the beneficial microorganisms contained in it. This research aimed to observe and study soil organisms’ activity after applying plant extract suspensions and compost types. The research was conducted at the Integrated Field Laboratory and Soil Science Laboratory, Faculty of Agriculture, University of Lampung. The treatments were designed in a 3 × 3 factorial design in a Randomized Block Design with three replications. The first factor was the plant suspension extracts derived from banana weevil, pineapple rhizome, and oil palm empty fruit bunches, while the second factor was the compost in the form of solid compost and liquid compost. The results showed the activity of soil organisms in the form of respiration, soil microbial carbon biomass, soil microbial population, and mesofauna population, which was applied to a suspension of plant extracts from pineapple rhizome, given the highest yield. Furthermore, the bacterial phosphate dissolution index and the diversity of soil mesofauna applied to liquid compost were higher than those of solid compost or without compost. There was no interaction between the application of plant extract suspension and the compost types on the soil organism’s activity.
Study of Coffee Crops Development in Rantau Pulut Village, Seruyan Regency Central Kalimantan Wahdah, Rabiatul; Taher, Ratnah; Syarbini, Muhammad; Wilda, Kamilia; Haris, Abdul
JOURNAL OF TROPICAL SOILS Vol. 28 No. 1: January 2023
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2023.v28i1.23-29

Abstract

Coffee is one of Indonesia’s most prominent agricultural commodities; various coffee plants are produced with the best results from the west to the east of Indonesia. Indonesia’s climate and geographical location are suitable for cultivating the coffee plant. This study aims to determine the level of land suitability and the limiting factors for the development of coffee plants, as well as provide direction/recommendations in the development of coffee plants in Rantau Pulut Village, Seruyan Regency, Central Kalimantan. Land suitability has the potential to be increased from S2 to S1 by managing the limiting factors for the number of dry months and rainfall, SB (Saturated Base), pH, P2O5, and K2O so that the potential land suitability for the study area is S2r. The method used in this study is a qualitative descriptive survey method with a matching system, namely matching land quality/land characteristics with land use requirements for agricultural commodities to be developed. The result of the actual land suitability analysis of Rantau Pulut Village for developing robusta coffee plants is S3fn

Page 76 of 82 | Total Record : 812

 74   75   76   77   78 

Filter by Year

2008 2025


Reset
Filter By Issues
All Issue Vol 30, No 3: September 2025 (in Progress) Vol. 30 No. 3: September 2025 (in Progress) Vol 30, No 2: May 2025 Vol. 30 No. 2: May 2025 Vol 30, No 1: January 2025 Vol. 30 No. 1: January 2025 Vol. 29 No. 3: September 2024 Vol 29, No 3: September 2024 Vol. 29 No. 2: May 2024 Vol 29, No 2: May 2024 Vol 29, No 1: January 2024 Vol. 29 No. 1: January 2024 Vol 28, No 3: September 2023 Vol. 28 No. 3: September 2023 Vol. 28 No. 2: May 2023 Vol 28, No 2: May 2023 Vol. 28 No. 1: January 2023 Vol 28, No 1: January 2023 Vol 27, No 3: September 2022 Vol. 27 No. 3: September 2022 Vol 27, No 2: May 2022 Vol. 27 No. 2: May 2022 Vol 27, No 1: January 2022 Vol. 27 No. 1: January 2022 Vol. 26 No. 3: September 2021 Vol 26, No 3: September 2021 Vol 26, No 2: May 2021 Vol. 26 No. 2: May 2021 Vol. 26 No. 1: January 2021 Vol 26, No 1: January 2021 Vol. 25 No. 3: September 2020 Vol 25, No 3: September 2020 Vol. 25 No. 2: May 2020 Vol 25, No 2: May 2020 Vol. 25 No. 1: January 2020 Vol 25, No 1: January 2020 Vol 24, No 3: September 2019 Vol. 24 No. 3: September 2019 Vol 24, No 2: May 2019 Vol. 24 No. 2: May 2019 Vol. 24 No. 1: January 2019 Vol 24, No 1: January 2019 Vol. 23 No. 3: September 2018 Vol 23, No 3: September 2018 Vol. 23 No. 2: May 2018 Vol 23, No 2: May 2018 Vol. 23 No. 1: January 2018 Vol 23, No 1: January 2018 Vol 22, No 3: September 2017 Vol. 22 No. 3: September 2017 Vol. 22 No. 2: May 2017 Vol 22, No 2: May 2017 Vol 22, No 1: January 2017 Vol. 22 No. 1: January 2017 Vol 21, No 3: September 2016 Vol. 21 No. 3: September 2016 Vol. 21 No. 2: May 2016 Vol 21, No 2: May 2016 Vol 21, No 1: January 2016 Vol. 21 No. 1: January 2016 Vol 20, No 3: September 2015 Vol. 20 No. 3: September 2015 Vol. 20 No. 2: May 2015 Vol 20, No 2: May 2015 Vol. 20 No. 1: January 2015 Vol 20, No 1: January 2015 Vol. 19 No. 3: September 2014 Vol 19, No 3: September 2014 Vol 19, No 2: May 2014 Vol. 19 No. 2: May 2014 Vol 19, No 1: January 2014 Vol. 19 No. 1: January 2014 Vol. 18 No. 3: September 2013 Vol 18, No 3: September 2013 Vol 18, No 2: May 2013 Vol. 18 No. 2: May 2013 Vol 18, No 1: January 2013 Vol. 18 No. 1: January 2013 Vol. 17 No. 3: September 2012 Vol 17, No 3: September 2012 Vol 17, No 2: May 2012 Vol. 17 No. 2: May 2012 Vol. 17 No. 1: Januari 2012 Vol 17, No 1: Januari 2012 Vol 16, No 3: September 2011 Vol. 16 No. 3: September 2011 Vol. 16 No. 2: May 2011 Vol 16, No 2: May 2011 Vol. 16 No. 1: January 2011 Vol 16, No 1: January 2011 Vol. 15 No. 3: September 2010 Vol 15, No 3: September 2010 Vol. 15 No. 2: May 2010 Vol 15, No 2: May 2010 Vol. 15 No. 1: January 2010 Vol 15, No 1: January 2010 Vol 14, No 3: September 2009 Vol. 14 No. 3: September 2009 Vol. 14 No. 2: May 2009 Vol 14, No 2: May 2009 Vol 14, No 1: January 2009 Vol. 14 No. 1: January 2009 Vol 13, No 3: September 2008 Vol. 13 No. 3: September 2008 Vol. 13 No. 2: May 2008 Vol 13, No 2: May 2008 Vol 13, No 1: January 2008 Vol. 13 No. 1: January 2008 More Issue