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All Journal Planta Tropika Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Acta Solum
Imas Masithoh Devangsari, Imas Masithoh
Departemen Of Soil Science, Faculty Of Agriculture, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management

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Pengaruh Pupuk Majemuk NPK + Zn terhadap Pertumbuhan, Produksi dan Serapan Zn Padi Sawah di Vertisol, Sragen Devangsari, Imas Masithoh; Maas, Azwar; Purwanto, Benito Heru
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 4, No 2 (2016)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2016.059.75-83

Abstract

Vertisol is a soil that has neutral to slightly alkaline pH. Zinc availability decreases with increasing pH. The existence of symptoms micronutrients scarcity, especially zinc, also caused by the use of highly yielding seeds with unbalanced fertilization. In addition, Zn uptake by plants is sustainability process which resulted in a decrease in nutrient levels of Zn in the root zone. The aim of the research was to determine the optimum Zn formula that can be added to the NPK compound fertilizer and to determine the effectiveness of the fertilizer on the growth and yield of rice. The experiment was arranged by completely randomized block design with 10 treatments and 3 replicates of each treatment. NPK compound fertilizer dose was given 300kg / ha. The result of this study showed that the compound fertilizer NPK + Zn had no effect on plant height, number of tillers and weight of the plant. The additional dose compound of 2% Zn to the dose of compound fertilizer NPK + Zn did not increase the yield. There was a tendency NPK treatment +0.75% Zn deliver the highest results. NPK compound fertilizer application + Zn significantly increased the uptake of Zn.
An Information and Marketing System for Agrocomplex Sector Based on Reliable Digital Technology as a Supporting Capacity for Food Security in a Force Majeure Event Endang Sulistiyaningsih; Valentina Dwi Suci Handayani; Widiastuti Setyaningsih; Wahdan Fitriya; Arif Wahyu Widada; Candra Aryudiawan; Taufan Alam; Imas Masithoh Devangsari
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 7, No 3 (2021): September
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1060.106 KB) | DOI: 10.22146/jpkm.62608

Abstract

The pandemic situation experienced by the world are currently threatening food security in various regions including Indonesia. In these regions, the flow of traffic in the agricultural and fisheries sectors, from the means of production to the distribution of the harvest, is choked up due to social restrictions in various parts of the region. As a strategic step to reduce the impact on the agricultural sector, it is necessary to accelerate information to support the stability of production and also to distribute production results. Digital media in agriculture are needed to provide education with a variety of contents, such as technical production, marketing, and agricultural finance information. The Faculty of Agriculture of Universitas Gadjah Mada (UGM) has supported digital information dissemination through the Desa Apps application. Desa Apps aims to be an application platform that provides agricultural extension and develops digital farmer communities. The information that has been carried out by Desa Apps so far includes agrocomplex sector (agriculture, animal husbandry and fisheries) problems related to cultivation methods and obstacles faced in the land such as attack by plant pest and disease. As a digital media, the Desa Apps has educated farmer and aquaculturists. Optimization needs to be done to improve the performance of Desa Apps as a digital media, one of which is the marketing system that this application actually has. This study evaluates whether farmers and aquaculturists under the auspices of the Faculty of Agriculture are interested in being able to get education and at the same time be able to market their product directly to consumers with one application, the Desa Apps. The findings of the study showed that the pandemic period greatly affected the incomes of the assisted target community, and they required media that can help market their product. The decline in turnover due to pandemic conditions reached 70% with an average decrease of 39.2%. The method of selling products has changed from conventional to online sales by 20% of the total respondents. Changes in sales methods occurred due to distribution limitations due to regional and activity restrictions during the pandemic. Therefore, it is necessary to optimize the Desa Apps application as a digital media to support food security.
Potential of Trace Elements in Volcanic Highlands: Geogenic Sources and Their Implications for Productivity Devangsari, Imas Masithoh; Purwanto, Benito Heru
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.v3i3.3443

Abstract

This study investigates the mineralogical composition and trace element potential of volcanic highland soils in Kejajar District, Wonosobo, Central Java, an area that has experienced long-term horticultural intensification. Volcanic Andisols in this region are known for high fertility but also carry risks of trace element accumulation due to complex mineralogy and intensive land use. Bulk powder X-ray diffraction identified feldspar, epidote, apatite, pyrite, and clay minerals, which may release essential (Zn, Cu, Fe, Mn) and toxic (Cd, Pb, As) elements through natural weathering and agricultural activities. Results show that horticultural soils on 9–15% slopes exhibited the highest HCl 25%-extractable P (224.70 mg/100 g). At the same time, shrubland soils also displayed high values (179.74 mg/100 g), indicating contributions from both fertilizer and geogenic sources. Although horticultural soils had higher chemical fertility, the shrubland maintained better physical (bulk density, 0.78 g/cm³) and biological quality (soil respiration, 36.48 mg C/kg/day). Productivity trends further highlight risks: cabbage yields declined by 41% (2020–2023), and potato production dropped by 11% (2017–2021). These findings demonstrate the dual role of geogenic and anthropogenic inputs in shaping soil quality and productivity. Sustainable management requires integrated strategies, including trace element monitoring, pH regulation, organic matter enhancement, and the use of low-contaminant fertilizers, to ensure long-term agroecosystem resilience in volcanic highlands.
Co-Authors Arif Wahyu Widada Benito Heru Purwanto Candra Aryudiawan Endang Sulistiyaningsih Maas, Azwar Setyaningsih, Widiastuti Taufan Alam Valentina Dwi Suci Handayani Wahdan Fitriya Wahdan Fitriya