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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.
The Effect of Trichoderma on N, P, K Soil and Corn Plants Syamsiyah, Jauhari; Hartati, Sri; Herdiansyah, Ganjar; Maro'ah, Siti; Nurrahma, Rizkia Aufa
JOURNAL OF TROPICAL SOILS Vol. 29 No. 3: September 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i3.159-166

Abstract

The use of Trichoderma is one effort to manage healthy and environmentally friendly plants. This fertilizer is part of organic fertilizer; which farmers do not widely practice yet. This fertilizer has an impact that can increase nutrients and soil fertility. This study examined the impact of using Trichoderma in combination with NPK fertilizer on soil nutrient, nutrient uptake, and growth of corn plants. A Completely Randomized Block Design consisting nine treatments with three replicates was applied. The treatments were Control (A), standard NPK (Urea 350 kg ha-1, SP-36 200kg ha-1 and KCl 75kg ha-1) (B), ¼ NPK + 5 kg ha-1 Trichoderma (C), ½ NPK + 5 kg ha-1 Trichoderma (D), ¾ NPK + 5 kg ha-1 Trichoderma (E), 1 NPK + 5 kg ha-1 Trichoderma (F), ¾ NPK +1.25 kg ha-1 Trichoderma (G), ¾ NPK +2.5 kg ha-1 Trichoderma (H), ¾ NPK + 3.75 kg ha-1 Trichoderma (I). The results showed that NPK fertilizer accompanied by Trichoderma increased soil total N by 84.21%, available P by 36.25%, and available K by 142.22%. The same treatment also increased corn plants’ N, P, and K nutrients by 52.71%, 106%, and 61.53%. The growth of maize plants from applyingTrichoderma up to 5 kg ha-1 has not reduced the use of NPK fertilizer yet. However, applying Trichoderma could improve soil fertility.
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.
Automasi Irigasi di Lahan Pasir Pantai untuk Meningkatkan Produktivitas Tanaman Budidaya Herawati, Aktavia; Mujiyo; Herdiansyah, Ganjar; Syamsiyah, Jauhari; Lestari, Anik
JST (Jurnal Sains dan Teknologi) Vol. 12 No. 3 (2023): Oktober
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jstundiksha.v12i3.56096

Abstract

Lahan pasir pantai di Dusun Sogesanden, Desa Srigading, Kecamatan Sanden, Kabupaten Bantul, Daerah Istimewa Yogyakarta merupakan lahan sub-optimal yang memiliki keterbatasan biofisik lahan. Permasalahan utama budidaya di lahan pasir yaitu rendahnya efisiensi dan efektivitas penyiraman. Diperlukan sistem irigasi yang efisien dan efektif untuk menyediakan lengas yang cukup bagi tanaman. Tujuan penelitian ini adalah merakit dan mengimplementasikan teknologi automasi irigasi tetes pada lahan budidaya kacang tanah (Arachis hypogaea L.). Teknologi ini mampu memberikan air secara tepat kebutuhan dan sasaran yaitu pada zona perakaran tanaman. Metode yang digunakan adalah perakitan automasi sistem irigasi dengan alat monitoring kelembapan dan aplikasi penyiraman di lahan budidaya pasir pantai. Hasil penelitian menunjukkan bahwa sistem automasi irigasi telah berhasil dirakit dan diaplikasikan pada lahan pasir pantai, sistem berfungsi dengan baik. Sensor tanah mampu membaca kondisi lengas tanah dan mengirimkan data ke controller. Layar pada LCD menujukkan nilai kondisi lengas > 700 jika tanah dalam kondisi kering dan nilai lengas ≤420 jika tanah dalam kondisi basah. Keran otomatis akan membuka (>700) sehingga air dari tandon akan mengalir melalui selang menuju perakaran tanaman dan keran otomatis akan menutup dan menyetop aliran air dari tandon jika nilai lengas ≤420. Diperoleh efisiensi tenaga kerja siram mencapai 100% setelah menggunakan teknologi automasi irigasi irigasi tetes.
Assessing the Quality of Organic Fertilizer Products Made from Cow Dung in Wonogiri Regency, Indonesia Romadhon, Muhammad Rizky; Mujiyo, Mujiyo; Suntoro, Suntoro; Dewi, Widyatmani Sih; Syamsiyah, Jauhari; Rahayu, Rahayu; Widijanto, Hery; Herdiansyah, Ganjar; Herawati, Aktavia; Anggita, Akas; Hasanah, Khalyfah; Hardian, Tiara; Istiqomah, Nanda Mei; Irmawati, Viviana
Agroindustrial Journal Vol 10, No 2 (2023)
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/aij.v10i2.90130

Abstract

Kebonagung Sub-district, Sidoharjo District, Wonogiri Regency is the Wonoagung Wonogiri Organic Farming Association (PPOWW) location. Mitra is an organization engaged in organic rice and cattle cultivation. The conversion of bovine dung into organic fertilizer, particularly liquid fertilizer containing biological agents, is one of the waste elimination strategies employed to prevent environmental contamination. The nutrient content of organic fertilizer material sources varies. Organic fertilizer of high quality conforms to the Standard for Organic Fertilizers established by the Ministry of Agriculture of the Republic of Indonesia. Only some producers are aware of the standard quality requirements for organic fertilizer. It is necessary to analyze the nutrient content of organic fertilizer products to determine whether the quality of organic fertilizer is excellent. A preliminary survey of partner conditions, preparation of materials (organic fertilizer), and analysis of fertilizer content are among the activities performed. The C/N ratio of organic fertilizer is 8.41, and its pH is 7.6. The analysis results indicate that the Wonoagung Wonogiri Organic Agriculture Association's organic fertilizer products meet the liquid organic fertilizer quality standards. This condition demonstrates that the raw materials used in organic fertilizer production are of high quality and that the appropriate procedures have been followed. Adding biological agents to the production of organic fertilizer can enhance the quality of the finished product.
The Study of Relationship of Soil Physics Health and Micro-Climate Characteristics on Paddy Fields Sumani, Sumani; Widhiyastuti, Alfia Nisa; Mujiyo, Mujiyo; Herdiansyah, Ganjar; Maro’ah, Siti
Journal of Applied Agricultural Science and Technology Vol. 8 No. 1 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i1.194

Abstract

Global food security and environmental stability will be threatened by population growth, land usage, and land change. Proper soil management in plant production helps reduce temperature and humidity-induced plant deterioration. This study aims to identify soil physics health (SPH), microclimate characteristics, and the relationship between the two in managing organic and inorganic paddy fields. The research location is in Purwantoro District, Wonogiri Regency, using descriptive explorative research, with purposive soil sampling at work map, made by overlay thematic maps, resulting in 9 LMU. The observation and sampling were carried out in the maximum vegetative phase of plants, while the micro-climate is in the generation phase. The determination of the soil physics health status used the scoring method. Using the T-test, Pearson’s correlation test finds the relationship between SPH and micro-climate characteristics and the differences between the two. The results showed the distribution of SPH in organic farming is healthy (74.7) and very healthy (83.3), while inorganic farming is healthy (79.72). The temperature is optimal, ranging from 23.5°C to 30.1°C, but the humidity is minimum in the range of 35.3% to 76.1%. The SPH and micro-climate have a significant relationship, with a positive correlation between air and soil temperature with SPH and a negative correlation between air humidity and soil moisture.
Distribution of Soil Physical Characteristics Across Different Slope Gradients in Highland Areas (Tawangmangu, Indonesia) for Potato Crop Development Sumani, Sumani; Ariyanto, Dwi Priyo; Herdiansyah, Ganjar; Budiastuti, Maria Theresia Sri; Yulianti, Anita; Irmawati, Viviana; Hardian, Tiara; Istiqomah, Nanda Mei
Acta Solum Vol. 3 No. 3 (2025): Juli 2025
Publisher : Department of Soil, Faculty of Agriculture, Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/actasolum.v3i3.3328

Abstract

Tawangmangu District, Indonesia, is located in a highland area with a cool climate and is predominantly composed of Andisol soil types, offering great potential for the development of potato crops (Solanum tuberosum L.). This study aims to examine soil physical properties suitable for potato cultivation, analyze the distribution of these properties across different slope gradients, and identify appropriate soil management strategies for the Tawangmangu area. The research employed a descriptive-exploratory approach, utilizing land map units (LMUs) that were determined through the overlay of soil type maps, rainfall data, slope gradients, and land use. The overlay resulted in 5 LMUs and 25 sampling points. Observed soil physical parameters included texture, porosity, permeability, consistency, effective soil depth, coarse material, and drainage. The land suitability assessment showed that LMUs 1, 2, and 3 were classified as S3-oa, limited by drainage, while LMUs 4 and 5 were classified as S3-oa,rc, limited by both drainage and effective soil depth. Slope gradient significantly affected moisture content (p = 0.022), bulk density (p = 0.037), particle density (p = 0.048), porosity (p = 0.032), effective soil depth (p = 0.001), and coarse material content (p = 0.032). Recommended land management efforts include the addition of organic matter, manual tillage for shallow soils, and the application of eco-drainage techniques to improve soil physical suitability for potato cultivation in Tawangmangu.