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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Applied Research in Science and Technology
Maftukhah, Rizki
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science

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Estimating Crop Water Requirements to Evaluate Cropping Patterns for Agriculture on Post-Tin Mining Land Maftukhah, Rizki; Pitaloka, Novita Dyah; Murtiningrum, Murtiningrum; Ngadisih, Ngadisih
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 3 (2025): June 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i3.960-970

Abstract

Utilization of degraded land, such as post-mining land, for agricultural purposes necessitates significant effort, particularly land and water management. This study focuses on estimating crop water requirements (CWR), a crucial step in evaluating suitable cropping patterns for agricultural development on post-tin mining in Bangka Island. The CWR and effective rainfall (EF) of rice, cassava, and peanuts were estimated using meteorological data between 2019 and 2023. The CWR was calculated using Penman-Monteith method, while EF was determined using the USDA SCS Method. The results indicate that average potential evapotranspiration (ETo) from 2019 to 2023 varied across years. The highest ETo values were predicted as 5.6 to 5.8 mm/day, while the lowest value was estimated at 4.3 mm/day. Rice and peanut cultivation require supplemental irrigation since EF is insufficient to meet CWR. Cassava, is more suitable, with EF generally fulfilling its CWR. This study provide useful information for developing adaptive strategies that account for the effects of climatic conditions and different cropping pattern, particularly in degraded areas. Furthermore, crop selection that is adapted to the degraded area offers a long-term solution for rehabilitating degraded areas. Keywords: Agriculture, Degraded soil, Irrigation, Yield.
Assessment of Soil and Water Conservation Potential Using Vetiver Crops (Chrysopogon zizanioides) as a Nature-Based Solution for Watershed Restoration Setyawan, Chandra; Nugraheni, Yekti; Ngadisih, Ngadisih; Maftukhah, Rizki; Safrina, Devi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1785-1797

Abstract

Watersheds play an important role in the hydrological cycle to ensure water availability and support food security. Currently, many watersheds are experiencing degradation due to excessive agricultural practices without the implementation of soil and water conservation measures. This study aims to assess the potential of Vetiver crops (Chrysopogon zizanioides L.) for soil and water conservation as a nature-based solution for watershed protection.n. This research use Geographic Information System (ArcGIS) tools to analyze land suitability for Vetiver cultivation. A multi-criteria evaluation approach was applied using a scoring system based on key environmental indicators including rainfall, temperature, slope gradient, land use type, soil type, and organic matter content. The results indicate that most of the study area was classified as moderately suitable (61.98%) and marginally suitable (38.00%) for vetiver plants, with only 0.01% falling into the highly suitable and not suitable categories, respectively. The integration of spatial analysis and environmental indicators allowed for the identification of priority areas where Vetiver could be effectively implemented to enhance watershed resilience, mitigate erosion, and support sustainable land management. The finding of this study provides a reference for vegetation method development using crops with economic value which is suitable for tropical areas.
Micro Irrigation and NPK Fertilization to Improve Nutrient Uptake and Flavonoid of Shallot in Karst Land Nana, Fransiska Maria Aprilya; Murtiningrum; Zaki , Muhamad Khoiru; Ximenis, Virgolie Diknas; Ngadisih; Maftukhah, Rizki; Fahima, Sahidatun
Applied Research in Science and Technology Vol. 5 No. 2 (2025): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v5i2.115

Abstract

Background: Water and nutrient limitations in karst soils hinder the optimal growth of shallots, so water and nutrient management is carried out using variations in micro-irrigation and NPK fertilization. Variations in micro-irrigation and NPK fertilization can support the growth and flavonoid content of shallots.Aims: This study aims to analyze nutrient uptake and total flavonoid production of shallots in karst soils with variations in micro-irrigation and NPK fertilization.Methods: The research used a Randomized Block Design (RBD) containing two main factors. The first factor was the irrigation technique, consisting drip irrigation (I1) and mist irrigation (I2). The second factor was the NPK fertilizer dosage, consisting three levels: 0 kg/ha (N1), 500 kg/ha (N2), and 1000 kg/ha (N3). The parameters observed included soil moisture, soil NPK availability, plant NPK uptake, total flavonoids, growth, and shallot yield.Results: The results showed that mist irrigation with an NPK dose of 1000 kg/ha yielded higher results compared to drip irrigation in terms of soil moisture, NPK availability and uptake, growth, and yield. The highest availability of nitrogen, phosphorus, and potassium in mist irrigation with a dose of 1000 kg/ha was 0.36%, 89.20 ppm, and 0.66 me%, respectively. Phosphorus uptake in mist irrigation was higher than in drip irrigation, at 0.81% and 0.89%, respectively. Growth and yield under mist irrigation with an NPK dose of 1000 kg/ha also yielded the best results compared to drip irrigation with an NPK dose of 1000 kg/ha, namely plant height (30.69 and 29.74 cm), number of leaves (27.65 and 25.77 leaves), and bulb diameter (30.07 and 27.02 mm). The highest total flavonoid content was observed in drip irrigation with a 500 kg/ha dose compared to mist irrigation with a 500 kg/ha dose, namely (78.83 and 50.96 mg/kg). Overall, irrigation techniques with varying NPK doses were able to increase nutrient and flavonoid uptake in shallot on karst land.
Co-Authors - Murtiningrum Chandra Setyawan, Chandra Fahima, Sahidatun Murtiningrum Nana, Fransiska Maria Aprilya Ngadisih Ngadisih Ngadisih Nugraheni, Yekti Pitaloka, Novita Dyah Safrina, Devi Ximenis, Virgolie Diknas Zaki , Muhamad Khoiru