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All Journal Bionatura Journal of Tropical Soils Agrovigor: Jurnal Agroekoteknologi Naturalis : Jurnal Penelitian Pengelolaan Sumberdaya Alam dan Lingkungan Jurnal Ilmu-Ilmu Pertanian Indonesia Jurnal Solum TERRA : Journal of Land Restoration Martabe : Jurnal Pengabdian Kepada Masyarakat Akta Agrosia Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS PublikA, Jurnal Ilmu Administrasi Negara Jurnal Pengabdian kepada Masyarakat Dewantara
Bandi Hermawan
University Of Bengkulu
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Social Sciences Other

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Journal : Journal of Tropical Soils

 1 
Vermicompost Buffering Capacity to Reduce Acidification of Pb and Cd Contaminated Inceptisols and Entisols Zainal Muktamar; Bandi Hermawan; Wulandari Wulandari; Priyono Prawito; Sigit Sudjatmiko; Nanik Setyowati; Fahrurrozi Fahrurrozi; Mochammad Chozin
JOURNAL OF TROPICAL SOILS Vol 26, No 1: January 2021
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2021.v26i1.1-9

Abstract

Contamination of  heavy metals on the soil leads to an increase in its acidity. Vermicompost application is commonly used to improve the properties of soil. The study was carried out to determine the reduction of the acidity in Pb and Cd contaminated soils under the application of vermicompost. Two laboratory experiments were set using Completely Randomized Design (CRD) with two factors. The first factor was soil samples, vis Inceptisols, and Entisols, and the second factor was the rates of vermicompost, consisted of 0, 5, 10, 15 g kg-1. The treatment combination was repeated three times. The soils were pretreated with 10 mg kg-1 Pb or Cd using Pb(NO3)2 and Cd(NO3)2. Three hundred kg soil sample was incorporated with vermicompost and placed in a 500 ml plastic bottle. The mixtures were incubated for eight weeks, and the moisture of the soil was maintained at field capacity. The acidity and soil temperature were monitored every week. The study indicated that Pb contaminated soil acidity increased to the sixth week of the incubation and decreased afterward. However, the acidity of Cd contaminated soil was consistently increased during the incubation. Treatment of vermicompost significantly lowered the acidity of both Pb and Cd contaminated soils. Contaminated Entisols had a higher response to the application of vermicompost than that of Inceptisols. This finding is significant in assessing acidity risk and possible management intervention for Pb and Cd contaminated soils.
Changes in Soil Physical Properties Following Applications of Vermicompost Superimposed with Liquid Organic Fertilizer Bandi Hermawan; Zainal Muktamar; Fahrurrozi Fahrurrozi; Nanik Setyowati; Sigit Sujatmiko; Muhammad Chosin; Elsa Lolita Putri
JOURNAL OF TROPICAL SOILS Vol 29, No 2: May 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i2.107-113

Abstract

Soil properties play essential roles in transmitting and holding precipitation water; therefore, they determine the amount of plant-available water in the soil profile. The study aimed to compare the size distributions of Andept soil pores following four-year applications of vermicompost and liquid organic fertilizer (LOF). The experiment was done from 2016 to 2019. The five doses of vermicompost (5, 10, 15, 20, and 25 Mg ha-1) set as the main factor, supplemented with 0 and 100 percent concentrations of LOF as a sub-factor, were arranged in a split-plot design with three replicates. Results showed that adding LOF decreased slow-drainage pores significantly when combined with 10 Mg ha-1 of vermicompost. However, the pore changes by LOF were not significant when applied to other doses of vermicompost. Applying vermicompost and LOF lowered the slow-drainage pores by increasing soil organic carbon and reducing soil particle density. The findings suggest that vermicompost and LOF act as soil ameliorants to reduce water loss by drainage from soil profiles. The study highlights the importance of soil properties in determining plant-available water in the soil profile.
Vermicompost Buffering Capacity to Reduce Acidification of Pb and Cd Contaminated Inceptisols and Entisols Muktamar, Zainal; Hermawan, Bandi; Wulandari, Wulandari; Prawito, Priyono; Sudjatmiko, Sigit; Setyowati, Nanik; Fahrurrozi, Fahrurrozi; Chozin, Mochammad
JOURNAL OF TROPICAL SOILS Vol. 26 No. 1: January 2021
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2021.v26i1.1-9

Abstract

Contamination of  heavy metals on the soil leads to an increase in its acidity. Vermicompost application is commonly used to improve the properties of soil. The study was carried out to determine the reduction of the acidity in Pb and Cd contaminated soils under the application of vermicompost. Two laboratory experiments were set using Completely Randomized Design (CRD) with two factors. The first factor was soil samples, vis Inceptisols, and Entisols, and the second factor was the rates of vermicompost, consisted of 0, 5, 10, 15 g kg-1. The treatment combination was repeated three times. The soils were pretreated with 10 mg kg-1 Pb or Cd using Pb(NO3)2 and Cd(NO3)2. Three hundred kg soil sample was incorporated with vermicompost and placed in a 500 ml plastic bottle. The mixtures were incubated for eight weeks, and the moisture of the soil was maintained at field capacity. The acidity and soil temperature were monitored every week. The study indicated that Pb contaminated soil acidity increased to the sixth week of the incubation and decreased afterward. However, the acidity of Cd contaminated soil was consistently increased during the incubation. Treatment of vermicompost significantly lowered the acidity of both Pb and Cd contaminated soils. Contaminated Entisols had a higher response to the application of vermicompost than that of Inceptisols. This finding is significant in assessing acidity risk and possible management intervention for Pb and Cd contaminated soils.
Changes in Soil Physical Properties Following Applications of Vermicompost Superimposed with Liquid Organic Fertilizer Hermawan, Bandi; Muktamar, Zainal; Fahrurrozi, Fahrurrozi; Setyowati, Nanik; Sujatmiko, Sigit; Chosin, Muhammad; Putri, Elsa Lolita
JOURNAL OF TROPICAL SOILS Vol. 29 No. 2: May 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i2.107-113

Abstract

Soil properties play essential roles in transmitting and holding precipitation water; therefore, they determine the amount of plant-available water in the soil profile. The study aimed to compare the size distributions of Andept soil pores following four-year applications of vermicompost and liquid organic fertilizer (LOF). The experiment was done from 2016 to 2019. The five doses of vermicompost (5, 10, 15, 20, and 25 Mg ha-1) set as the main factor, supplemented with 0 and 100 percent concentrations of LOF as a sub-factor, were arranged in a split-plot design with three replicates. Results showed that adding LOF decreased slow-drainage pores significantly when combined with 10 Mg ha-1 of vermicompost. However, the pore changes by LOF were not significant when applied to other doses of vermicompost. Applying vermicompost and LOF lowered the slow-drainage pores by increasing soil organic carbon and reducing soil particle density. The findings suggest that vermicompost and LOF act as soil ameliorants to reduce water loss by drainage from soil profiles. The study highlights the importance of soil properties in determining plant-available water in the soil profile.
MODEL OF THE RELATIONSHIP BETWEEN SELECTED THE SOIL PHYSICAL PROPERTIES OF OIL PALM SOIL Hermawan, Bandi; Putri, Elsa Lolita; Utami, Wanda Afrilia; Prawito, Priyono
JOURNAL OF TROPICAL SOILS Vol. 31 No. 1: January 2026 (In Progress)
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts..v31i1.%p

Abstract

Soil, water, and plants are interrelated elements in agricultural production. An in-depth understanding of the characteristics and interactions of these three aspects is essential in effective agricultural system management. The study aims to examine the relationship of soil capacity to hold water to different levels of land slope and identify the physical characteristics of the soil that affect it. The research was conducted in a community oil palm plantation in Talang Tengah I Village, Pondok Kubang District, Central Bengkulu Regency, Bengkulu Province. The method used was a survey with purposive sampling at five different slope levels, namely flat (0-8%), sloping (8-15%), slightly steep (15-25%), steep (25-45%), and very steep (45-100%). The data was statistically analyzed using the Partial Least Squares Structural Equation Modelling (PLS-SEM) method with WarpPLS 7.0 software. The results showed that slope had a significant effect on various soil physical characteristics and soil water holding capacity. The steeper the slope, there is a decrease in soil permeability, total pore space, and C-Organic soil, and an increase in soil volume weight, which results in a decrease in soil water holding capacity. The resulting model shows the agreement in describing the relationship between variables, where slope affects organic matter, sand %, and permeability, and then volume weight affects total pore space and permeability, which in turn effects the soil’s capacity to hold water.
Co-Authors - Alnopri - Prasetyo AGUS SUSATYA Agustian, Indra Alnopri . Alnopri Alnopri, Alnopri Andreas Junico Marulitua Situmorang Bambang Gonggo Murcitro Bambang Sulistyo Bambang Sulistyo Benny Bayu Prabowo Bieng Brata Chosin, Muhammad Chozin, Mochammad Dedi Saputra Dian Sari Dismini Arti Dwi Anggraeni Dwi Wahyuni Ganefianti Elsa Lolita Putri Esi Asyani Listyowati Evira Khairunisa Putri Fahrurrozi Fahrurrozi Fahrurrozi Fahrurrozi Fahrurrozi, Fahrurrozi Faiz Barchia Gusmara, Herry Haryaningsih, Sri Hasanudin Hasanudin Hasaanudin Hasanudin Hasanudin Hata Dahlan Herman, Welly Heru Widiyono, Heru Herwan Herwan Hery Suhartoyo Hesti Pujiwati Hindarto, Kanang Setyo Idarman Tarmizi - Impetus Hasada Windu Sitorus Indra Agustian Indra Agustian Ingri Dayana Kartika Ningtias Lolita Putri, Elsa Lusi Afriana M Faiz Barchia M Mustopa Romdhon M. Faiz Barchia M. Faiz Barchia M. Faiz Barchia Maemunah Maemunah Merakati Handajaningsih Mochammad Chozin Movizar Apriandi Muhammad Chosin Muhammad Faiz Barchia, Muhammad Faiz Nanik Setyowati Nanik Setyowati Nanik Setyowati Nur Fitriani NUR FITRIANI Nurwanto, Ahmad Pajrina Pajrina Permata, Nathasya Vira Prawito, Priyono Priyono Prawito Priyono Prawito Putri, Elsa Lolita Raden Mohamad Herdian Bhakti Saryoto Saryoto Satria Putra Utama Sigit Sudjatmiko Sigit Sudjatmiko, Sigit Sigit Sujatmiko Suharyanto Sujatmiko, Sigit Sumardi Sumardi Teguh Adiprasetyo Teguh Adiprasetyo Teguh Adiprasetyo Utami, Wanda Afrilia Vinni Lovita Welly Herman Welly Herman Welly Herman Welly Herman Wendra Kesuma Wijaya Wulandari Wulandari Wulandari Wulandari Yudhi Harini Bertham Zainal Muktamar Zainal Muktamar Zainal Muktamar Zainal Muktamar