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All Journal Jurnal Engineering Journal of Agriculture (JoA)
Rahmania, Syiffa
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Agriculture, Biological Sciences & Forestry Engineering

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Modification of Power Sprayer as a Pest Spraying Tool for Citrus Plants (Citrus sp.) Surya, Satria Adi; Mulianda, Pratiwi; Damanik, Annisa Purnamasari; Fitrada, Wathri; Rahmania, Syiffa
Journal of Agriculture Vol. 4 No. 02 (2025): Research Articles July 2025
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v4i02.6784

Abstract

This study, titled “Modification of Power Sprayer into a Pest Spraying Tool for Citrus Plants (Citrus Sp),” was conducted in Gunuang Omeh Sub-district, Lima Puluh Kota Regency, from September to October 2024. The objective was to assess the efficiency of a power sprayer and the effectiveness of pest control on citrus plants. The research involved modifying the nozzle of the power sprayer and conducting field tests on a 20 x 20 meter plot. Observations included flow rate, insecticide output capacity, spray distribution, operator walking speed, theoretical field capacity, effective field capacity, spraying efficiency, wind speed, and operator power. In addition, the performance of the power sprayer was compared with that of a knapsack sprayer. Based on the results, the average flow rate was 0.008874 L/s; average droplet size from the power sprayer was 0.3611 mm; average operator walking speed was 0.0413 m/s; average theoretical field capacity was 0.076764 ha/h; average effective field capacity was 0.058789 ha/h; average wind speed was 1.22 km/h; and average operator power was 0.227 kW. The average spraying efficiency of the power sprayer and knapsack sprayer was 76.66% and 60.66%, respectively. These findings indicate that the power sprayer is more efficient than the knapsack sprayer, as it requires less time, less physical effort, and delivers a comparable spray output. Furthermore, the power required by the operator when using the power sprayer is lower than that of the knapsack sprayer.
Analisis Daya Dukung Sumber Daya Lahan dan Air di Sarilamak, Kabupaten Lima Puluh Kota: Analysis of Land and Water Resource Carrying Capacity in Sarilamak, Lima Puluh Kota District Fitrada, Wathri; Rahmania, Syiffa; Ekawaty, Reni; Harmailis
Jurnal Engineering Vol. 8 No. 1 (2026): Volume 8, Nomor 1, 2026
Publisher : Universitas Jambi

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Abstract

Environmental carrying capacity is a vital indicator in spatial planning and food and water security. The objective of this study was to assess the status of land carrying capacity (LCC) and water carrying capacity (WCC) in Nagari Sarilamak, Harau District, Lima Puluh Kota Regency. The analysis is based on PermenLH No. 17/2009. It used a quantitative descriptive approach. This approach was based on secondary data and QGIS spatial analysis. The analysis was used to calculate the weighted runoff coefficient of land cover. Field validation was conducted to confirm the actual conditions. The results are clear: land carrying capacity has a surplus. This means that the availability of rice fields exceeds the population's rice consumption needs. Water carrying capacity, however, was found to be in deficit, despite relatively high annual rainfall. This was attributed to an uneven spatial and temporal distribution of water, as well as increased runoff due to changes in land cover. This imbalance requires integrated management through conservation of catchment areas, rainwater harvesting, and control of land use change. This study makes clear methodological and practical contributions to spatial planning based on environmental carrying capacity at the village level.
Co-Authors Damanik, Annisa Purnamasari Ekawaty, Reni Harmailis Mulianda, Pratiwi Satria Adi Surya Wathri Fitrada