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Journal : Journal of Tropical Soils

Rice Quality and Yield at Various Application Times of Organic Rice Management System Jauhari Syamsiyah; Dwi Priyo Ariyanto; Aktavia Herawati; Komariah Komariah; Sri Hartati; Fitri Nurbaiti
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.v28i1.9-15

Abstract

The higher national rice demand encourages various efforts to increase rice production. This increase in rice production occurs in line with increasing public awareness of healthy foods, especially organic rice. Rice field management with an organic system is expected to provide a higher yield and quality of rice. This study aims to determine the effect of the long-time application of an organic rice management system on rice yield and quality. Descriptive exploratory research is supported by laboratory analysis of samples of organic rice plants with three periods (10 years, 7 years, and 4 years), semi-organic and conventional. The parameters observed were dry harvested grain, dry milled grain, the weight of 1000 grains, unfilled grain, protein content, amylum, amylopectin, and reducing sugar. The most prolonged organic rice field management with the application of 10 years gives better results with a protein content of 6.14%, amylum 71.71%, and amylopectin 49.35%. While the application of organic farming for 7 years gives the highest rice yield, the difference is not confirmed with the application of organic 10 years, with the weight of dry grain harvest 10.44 Mg ha-1, dry milled grain 8.15 10.44 Mg ha-1, the weight of 1000 grains 24 g, and unfilled grain 3.8%.
Assessment of Land Characteristics and Suitability for Citrus Development in Dry Land Punung, Pacitan Regency Supriyadi Supriyadi; Rahayu Rahayu; Ganjar Herdiansyah; Aktavia Herawati; Dita Risky Novianti
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.v29i2.67-77

Abstract

One of the Indonesian provinces where the agricultural industry drives the economy is Punung, Pacitan, which has local conditions that are particularly suitable for producing citrus, giving this product the potential to continue to expand in popularity. Land evaluation tries to provide information on its potential for a particular purpose. This research was conducted to know land suitability classes, limiting factors, and improvement efforts that can be made. This research is exploratory descriptive with a variable approach through field survey and using a purposive random sampling method based on Land Mapping Units. Data analysis was carried out using the matching method between land characteristics and conditions for growing citrus, a statistical test by ANOVA (Analysis of Variance), and Duncan’s Multiple Range Test (DMRT) to find the factors that most determine land characteristics in Punung. The study results show that the actual land suitability class in Punung is marginally suitable. Improvements that can be made to increase the availability of nutrients in the soil in the form of available P2O5 with a low level of management is to apply P fertilization according to the needs of citrus. ANOVA results proved that the variety of soil types significantly influences some of the land characteristics.
Assessment of Andisol characteristics for the development of potato crops in Pangalengan Herdiansyah, Ganjar; Arifin, Mahfud; Suriadikusumah, Abraham; Herawati, Aktavia
JOURNAL OF TROPICAL SOILS Vol 30, No 1: January 2025
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2025.v30i1.45-52

Abstract

Pangalengan is a horticultural crop center area in Bandung Regency. The soil in this area consist of Andisol, which is developed from volcanic ash. One of the primary commodities in this area is potatoes. Intensive farming in Pangalengan is a problem that has an impact on soil and environmental conditions, thereby disrupting crop productivity. The research aimed to assess the characteristics of Andisols for the development of potato crop in Pangalengan. This research used qualitative, descriptive, and survey methods. The survey based on physiographic methods. Soil samples were taken purposively. The observations consisted of soil characteristics, erosion, soil fertility and land suitability. The research results show that the soil type is Typic Hapludans. Erosion is moderate (19.06-94.41 tons/ha/year) in SMU 1 and 2, high (311.22 tons/ha/year) in SMU 3 and very high (798.04 tons/ha/year) in SMU 4, soil fertility is low with land suitability for potato crop including marginally suitable (S3) and not suitable (N). Fertilization, especially P fertilizer and organic fertilizer as well as making bunds in the direction of the contour, are recommended for the development of potato crops in Pangalengan.
Changing of Sandy Soil Chemical Properties with Azolla microphylla and Quail Manure Syamsiah, Jauhari; Herawati, Aktavia; Mujiyo, Mujiyo; Widijanto, Hery; Pangastuti, Triyana Suryaning; Putri, Elvia Febriani
JOURNAL OF TROPICAL SOILS Vol 30, No 3: September 2025 (in Progress)
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2025.v30i3.%p

Abstract

Uncontrolled land conversion causes reduced land area for plant cultivation. The alternative used for rice cultivation is the marginal land such as sandy soil, however, several constraints led to very low productivity, so it needs proper management such as the addition of organic matter. The purpose of this study was to determine the changes in the chemical properties of sandy soil treated with Azolla microphylla and quail manure. The pot research was carried out in the Greenhouse of the Faculty of Agriculture, Universitas Sebelas Maret, with a factorial Completely Randomized Design (CRD) method, with 2 factors. Factor I was Azolla microphylla (A) (A0= 0, A1= 50, A2= 100, A3= 150 tons ha-1). Factor II was quail manure (Q) (Q0= 0, Q1= 20, Q2= 40 tons ha-1). Azolla microphylla and quail manure were incubated for 14 days under anaerobic conditions. The results showed that the application Azolla microphylla and quail manure increased chemical properties on sandy soil significantly. The addition of Azolla microphylla (100 tons ha-1) and quail manure (40 tons ha-1) increased the chemical properties of sandy soil such as cation exchange capacity (CEC), available-P, ammonium, available-K, available-Ca, electrical conductivity (EC) and redox potential (Eh).
Rice Quality and Yield at Various Application Times of Organic Rice Management System Syamsiyah, Jauhari; Ariyanto, Dwi Priyo; Herawati, Aktavia; Komariah, Komariah; Hartati, Sri; Nurbaiti, Fitri
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.v28i1.9-15

Abstract

The higher national rice demand encourages various efforts to increase rice production. This increase in rice production occurs in line with increasing public awareness of healthy foods, especially organic rice. Rice field management with an organic system is expected to provide a higher yield and quality of rice. This study aims to determine the effect of the long-time application of an organic rice management system on rice yield and quality. Descriptive exploratory research is supported by laboratory analysis of samples of organic rice plants with three periods (10 years, 7 years, and 4 years), semi-organic and conventional. The parameters observed were dry harvested grain, dry milled grain, the weight of 1000 grains, unfilled grain, protein content, amylum, amylopectin, and reducing sugar. The most prolonged organic rice field management with the application of 10 years gives better results with a protein content of 6.14%, amylum 71.71%, and amylopectin 49.35%. While the application of organic farming for 7 years gives the highest rice yield, the difference is not confirmed with the application of organic 10 years, with the weight of dry grain harvest 10.44 Mg ha-1, dry milled grain 8.15 10.44 Mg ha-1, the weight of 1000 grains 24 g, and unfilled grain 3.8%.
Change of Sandy Soil Chemical Properties with Azolla microphylla and Quail Manure Syamsiah, Jauhari; Herawati, Aktavia; Mujiyo, Mujiyo; Widijanto, Hery; Pangastuti, Triyana Suryaning; Putri, Elvia Febriani
JOURNAL OF TROPICAL SOILS Vol. 30 No. 3: September 2025
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2025.v30i3.147-158

Abstract

Uncontrolled land conversion reduces the available land for plant cultivation. The alternative used for rice cultivation is marginal land, such as sandy soil. However, several constraints led to very low productivity, so it needs proper management, such as adding organic matter. This study aimed to determine changes in the chemical properties of sandy soil treated with Azolla microphylla and quail manure. The pot research was carried out in the Greenhouse of the Faculty of Agriculture, Universitas Sebelas Maret, using a factorial Completely Randomized Design (CRD) with two factors. The first factor consisted of four levels of Azolla microphylla (AM),i.e., (0, 50,100, and 150 Mg ha-1). The second factor was three-level quail manure (QM ), i.e., (0, 20, 40 Mg ha-1). Fresh Azolla microphylla and quail manure were incubated for 14 days under anaerobic conditions. The results showed that applying Azolla microphylla, with or without quail manure, significantly improved the chemical properties of sandy soil. The addition of Azolla microphylla (100 Mg ha-1) with quail manure (40 Mg ha-1) increased organic C, Cation exchange capacity (CEC), available-P, Ammonium, Nitrate, exchangeable-K, Ca, electrical conductivity (EC), and redox potential (Eh).
Assessment of Land Characteristics and Suitability for Citrus Development in Dry Land Punung, Pacitan Regency Supriyadi, Supriyadi; Rahayu, Rahayu; Herdiansyah, Ganjar; Herawati, Aktavia; Novianti, Dita Risky
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.v29i2.67-77

Abstract

One of the Indonesian provinces where the agricultural industry drives the economy is Punung, Pacitan, which has local conditions that are particularly suitable for producing citrus, giving this product the potential to continue to expand in popularity. Land evaluation tries to provide information on its potential for a particular purpose. This research was conducted to know land suitability classes, limiting factors, and improvement efforts that can be made. This research is exploratory descriptive with a variable approach through field survey and using a purposive random sampling method based on Land Mapping Units. Data analysis was carried out using the matching method between land characteristics and conditions for growing citrus, a statistical test by ANOVA (Analysis of Variance), and Duncan’s Multiple Range Test (DMRT) to find the factors that most determine land characteristics in Punung. The study results show that the actual land suitability class in Punung is marginally suitable. Improvements that can be made to increase the availability of nutrients in the soil in the form of available P2O5 with a low level of management is to apply P fertilization according to the needs of citrus. ANOVA results proved that the variety of soil types significantly influences some of the land characteristics.
Assessment of Andisol characteristics for the development of potato crops in Pangalengan Herdiansyah, Ganjar; Arifin, Mahfud; Suriadikusumah, Abraham; Herawati, Aktavia
JOURNAL OF TROPICAL SOILS Vol. 30 No. 1: January 2025
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2025.v30i1.45-52

Abstract

Pangalengan is a horticultural crop center area in Bandung Regency. The soil in this area consist of Andisol, which is developed from volcanic ash. One of the primary commodities in this area is potatoes. Intensive farming in Pangalengan is a problem that has an impact on soil and environmental conditions, thereby disrupting crop productivity. The research aimed to assess the characteristics of Andisols for the development of potato crop in Pangalengan. This research used qualitative, descriptive, and survey methods. The survey based on physiographic methods. Soil samples were taken purposively. The observations consisted of soil characteristics, erosion, soil fertility and land suitability. The research results show that the soil type is Typic Hapludans. Erosion is moderate (19.06-94.41 tons/ha/year) in SMU 1 and 2, high (311.22 tons/ha/year) in SMU 3 and very high (798.04 tons/ha/year) in SMU 4, soil fertility is low with land suitability for potato crop including marginally suitable (S3) and not suitable (N). Fertilization, especially P fertilizer and organic fertilizer as well as making bunds in the direction of the contour, are recommended for the development of potato crops in Pangalengan.
Co-Authors Abraham Suriadikusumah Afifah Afiana Susila Ahmad Norri Prasetyo Akas Anggita Anggita, Akas Anik Lestari Atika Sari Damayanti Charly Mutiara Dita Risky Novianti Dwi Priyo Ariyanto Dwiwiyati Nurul Septariani Emma Trinurani Sofyan ERDASWIN, FARHAN Essla, Verona Putri Eun Ji Bae Fatchur Rochman fatimah Fatimah Fitri Nurbaiti Fitriana Romdhati Fitriana, Ummi Nur Ganjar Herdiansyah Ganjar Herdiansyah Ganjar Herdiansyah Ganjar Herdiansyah Ganjar Herdiansyah Ganjar Herdiansyah, Ganjar Geun Mo Yang Geun Mo Yang Hardian, Tiara Hasanah, Khalyfah Hery Widijanto Hery Widiyanto Indri Hapsari Pusponegoro Irmawati, Viviana Istiqomah, Nanda Mei Jauhari Syamsiah Jauhari Syamsiyah Jauhari Syamsiyah Jauhari Syamsiyah Jauhari Syamsiyah Jauhari Syamsiyah Jauhari Syamsiyah Jauhari Syamsiyah Khalyfah Hasanah Komariah Komariah Komariah Komariah Komariah Komariah Komariah Kurnia Mukti Dewi Lanamana, Willybrodus Lestari, Audi Soekma Lutfi, Hilda Fadhila Mahfud Arifin Mapan Rochmadtulloh Mapan Rochmadtulloh Muhammad Rizky Romadhon Mujiyo Mujiyo Mujiyo Nanda Mei Istiqomah Nawangsari, Relly Yunila Novianti, Dita Risky Nugroho, Diki Nur Faizaturrohmah NURBAITI, FITRI Nurul Farahin Ongko Cahyono Pangastuti, Triyana Suryaning Putri, Elvia Febriani Rafirman, Rizkisadi Rahayu Rahayu Rahayu Rahayu Rahayu Rahayu Rahayu Rahayu Rahayu Rahayu Rahayu Rahayu Retno Rosariastuti Retno Rosariastuti Retno Rosariastuti Romadhon, Muhammad Rizky S Suntoro Saedi Bawana Sri Hartati Sri Hartati Sri Wahyuni Sukamto, Ika Sumiyarsi Sumani . Sumani Sumani Sumani Sumani Sumani Sumani Suntoro Suntoro Suntoro Suntoro Suntoro Supriyadi Supriyadi Supriyadi Supriyadi Supriyadi Supriyadi Sutarno Sutarno Sutarno Sutarno Sutarno Sutarno Sutarno Sutarno Sutarno Tiara Hardian Viviana Irmawati WIDHI LARASATI Widyatmani Sih Dewi Yang Geun Mo Yogi Sukma Mahendra Yosua Yoga Setyawan