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Jurnal Pertanian Agros
Published by Universitas Janabadra
ISSN : 25273655     EISSN : 25798782     DOI : https://doi.org/10.37159/jpa.v27i2.61
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Melakukan evaluasi pengaruh pupuk kandang ayam dan NPKMg terhadap produktivitas tanaman aren. Sugar palm (Arenga pinnata Merr.) is a plantation commodity that is very beneficial ecologically and financially because it can adapt to various geographical conditions such as mountains, valleys, riverbanks, and undulating land. However, the development of this plant is still constrained by low cultivation intensification, unstructured planting patterns, and optimal land use, resulting in low productivity. Increasing the productivity of sugar palm plants can be achieved through intensive cultivation. The purpose of this study was to study how chicken manure and NPKMg fertilizer affect the growth of sugar palm plants and determine the best fertilizer dosage.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 7 Documents
 1 
Search results for , issue "Vol 27 No 3 (2025): EDISI JULI" : 7 Documents clear
RESPONS FISIOLOGIS DAN HASIL SORGUM (Sorghum bicolor L) VARIETAS LOKAL WATAR HAMMU MITING TADDA TERHADAP BERBAGAI VARIASI DOSIS NITROGEN Arnol Tamo Ama; Suprihati
Jurnal Pertanian Agros Vol 27 No 3 (2025): EDISI JULI
Publisher : Fakultas Pertanian Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v27i3.90

Abstract

Sorghum (Sorghum bicolor L) is one type of cereal plant that is a local and national food because it is resistant to disease and can be cultivated on marginal land. The local variety Watar Hammu Miting Tadda comes from East Sumba and has the potential to be developed in the highlands such as Kopeng, Central Java, which has different climate and soil characteristics. This study aims to determine the response of local sorghum Watar Hammu Miting Tadda to nitrogen (N) fertilizer. The study used an experimental method with a Randomized Block Design (RAK), five N fertilizer dose treatments (control; 2.44; 3.69; 4.89; and 6.08 g/plant), and four groups. The parameters observed included plant height, number of leaves, stem diameter, dry stalk weight, panicle length, seed weight per plant, tiled seed weight, and 100 seed weight. The results of the analysis showed that the N fertilizer dose treatment had a very significant effect on plant height at the age of 6 MST, with the highest height obtained at a dose of 6.08 g/plant (104.49 cm). However, the treatment did not significantly affect other parameters, such as seed weight and panicle length. The highest seed weight was recorded at a dose of 3.69 g/plant (302.38 g). This indicates that plant vegetative growth is more responsive to N fertilizer than harvest yields. These results also demonstrate the importance of site-specific nutrient management and the use of adaptive varieties to optimize yields.
ANALISIS KEUNTUNGAN USAHA PENANGKARAN BENIH PADI BERSERTIFIKAT VARIETAS UNGGUL DAN FAKTOR-FAKTOR YANG MEMPENGARUHINYA DI KABUPATEN MUARO JAMBI Siregar, M. Rizqi; MT Napitupulu, Dompak; Edison
Jurnal Pertanian Agros Vol 27 No 3 (2025): EDISI JULI
Publisher : Fakultas Pertanian Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v27i3.96

Abstract

Penelitian ini bertujuan untuk mengetahui gambaran umum usaha tani penangkaran benih padi, mengetahui besarnya biaya, penerimaan, dan keuntungan usaha tani penangkaran benih padi serta faktor-faktor yang mempengaruhi keuntungan usaha tani penangkaran benih padi di Kabupaten Muaro Jambi. Faktor yang mempengaruhi keuntungan usaha tani penangkaran benih padi diketahu dengan menggunakan metode regresi berganda dengan model fungsi Cobb-Douglass. Hasil penelitian menunjukkan bahwa (1) usaha tani penangkaran benih padi di Kabupaten Muaro Jambi umumnya menggunakan varietas Inpara 3, dengan penggunaan pupuk organik, Urea, SP36, KCL dan pestisida oleh petani dengan penggunaan tenaga kerja dalam dan luar keluarga. (2) Rata-rata penerimaan usaha tani penangkaran benih padi di Kabupaten Muaro Jambi adalah sebesar Rp55.499.000,00/ha/MT. Rata-rata biaya usaha tani sebesar Rp18.851.337,00/ha/MT dengan keuntungan usaha tani sebesar Rp36.597.663,00. Selanjutnya, (3) secara bersama-sama faktor yang mempengaruhi dalam arah positif adalah Biaya Benih (X1), Biaya Organik (X5), dan Biaya Pestisida (X6) sedangkan faktor yang mempengaruhi dalam arah negatif adalah Biaya Urea (X2), Biaya SP36 (X3), Biaya KCL (X4), Biaya TKLK (X7), dan biaya TKDK (X8), dan Biaya Sewa Lahan (X9).
ANALISIS EFISIENSI STRUKTUR RANTAI PASOK AGRIBISNIS CABAI MERAH BESAR DI DESA SINDULANG, KABUPATEN SUMEDANG Eddy Renaldi; Pandi Pardian; Hanifa Kuswatim, Salsabila
Jurnal Pertanian Agros Vol 27 No 3 (2025): EDISI JULI
Publisher : Fakultas Pertanian Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v27i3.110

Abstract

This study aims to analyze the efficiency of red chili agribusiness supply chain structures in Sindulang Village, Cimanggung Subdistrict, Sumedang Regency. Efficiency is measured by indicators such as distribution chain length, production cost (HPP), marketing margin, farmer’s share, and cash flow cycle. The research applied a qualitative case study approach using descriptive and diagnostic analysis. Results reveal three main supply chain structures: independent farmers, cooperative-partnered farmers, and company-partnered farmers. The independent farmer model was the most efficient, having the shortest chain, lowest HPP, smallest marketing margin, and highest farmer’s share (50%). The cooperative model was the least efficient, with the lowest farmer’s share (38%), highest HPP, and the longest cash cycle. The company-partnered model ranked moderate in efficiency. These findings emphasize that supply chain efficiency is significantly influenced by institutional structure, distribution system, and the integration of information among actors.
DAMPAK ROTASI TANAM TERHADAP PERSPEKTIF EKONOMI PETANI HORTIKULTURA DI KECAMATAN LANDONO KABUPATEN KONAWE SELATAN DENGAN PENDEKATAN KUALITATIF Nurmaya; Hajar; Rosmalah, Sitti; Maulid Sari, Awal
Jurnal Pertanian Agros Vol 27 No 3 (2025): EDISI JULI
Publisher : Fakultas Pertanian Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v27i3.111

Abstract

This study aims to analyze the impact of crop rotation on the economic perspective of horticulture farmers in Landono District, South Konawe Regency, using a qualitative approach. In horticulture farming, cost efficiency and income optimization are key to success. Although quantitative data from three farmers (Nanang, Yohan, and Suparti) show differences in financial performance, a deep understanding of how farmers perceive and manage crop rotation practices and their impact on their economic condition still needs to be explored. Through in-depth interviews, this study explores farmers' understanding of crop rotation concepts, the practices they undertake, and their perceptions of its influence on farming costs, income, and profits. Initial findings suggest that farmers who intensively apply crop rotation tend to have a more positive view of their farming efficiency, although this is not always directly proportional to the highest absolute profit. This study concludes that farmers' understanding of crop rotation as an economic efficiency strategy needs to be strengthened through appropriate counseling and policy support.
PENGARUH VARIASI KONSENTRASI LIMBAH AIR CUCIAN BERAS DAN VARIASI DOSIS PUPUK NPK TERHADAP TANAMAN CABAI MERAH (Capsicum Annum L.) Pega, Eusabius Paul; Mariana Teresa Pega; Mitha Rabiyatul Nufus; Rosalia Silaban; Rio Agung Nugroho
Jurnal Pertanian Agros Vol 27 No 3 (2025): EDISI JULI
Publisher : Fakultas Pertanian Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v27i3.104

Abstract

Red chili is widely used as a key ingredient in various traditional dishes. However, its availability often fluctuates due to seasonal changes, pest and disease outbreaks, and distribution challenges, resulting in unstable market prices. This study aims to evaluate the effects of different concentrations of rice washing wastewater and varying dosages of NPK fertilizer on red chili plants (Capsicum annuum L.). It also investigates whether there is a significant interaction between these two treatments on the plant's growth and yield. The research employed a factorial Completely Randomized Design (CRD) with two treatment factors and one control. The first factor was the concentration of rice washing wastewater at three levels: 150 ml/plant, 300 ml/plant, and 450 ml/plant. The second factor was the dosage of NPK fertilizer: 10 g/plant, 15 g/plant, and 20 g/plant. The results indicated a significant interaction between the wastewater and fertilizer treatments on stem diameter at 4 weeks after transplanting and fruit diameter. The best outcome was observed with the application of 450 ml/plant of fermented rice washing water, which significantly improved plant height at 4 weeks, number of fruits, and fruit weight.
IDENTIFIKASI NILAI KONSTANTA DAUN TANAMAN ALPUKAT DAN MANGGIS BERBASIS PENGOLAHAN CITRA DIGITAL Mustopa, Zaen Ali; Al Ramadhani, Farchan Mushaf; Badrudin, Ubad
Jurnal Pertanian Agros Vol 27 No 3 (2025): EDISI JULI
Publisher : Fakultas Pertanian Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v27i3.114

Abstract

Leaves are essential organs in plant physiology as they store unique morphometric information for each variety. The leaf constant is an important parameter because it can be used to efficiently estimate leaf area. This study aimed to identify the leaf constant values of avocado variety Hass and mangosteen variety Kaligesing using digital image processing methods. The research was conducted at the Agrotechnology Laboratory, University of Pekalongan. Leaf images were calibrated and processed using ImageJ software to obtain leaf area values. The leaf constant was found to be 0.722 for avocado and 0.661 for mangosteen. These constants were then used to predict leaf area, which was validated against measured leaf area from digital image processing using statistical analysis. The results showed determination coefficients (R²) of 0,9984 for avocado and 0,9915 for mangosteen, with RMSE, NRMSE, NSE, and d values indicating a very high level of agreement. This study demonstrates that leaf constants obtained through digital image processing can be used to model leaf area accurately, quickly, and non-destructively.
ANALISIS NILAI KONSTANTA DAUN TANAMAN BELIMBING DAN SAWO BERBASIS PENGOLAHAN CITRA DIGITAL Sadewa, Dzulkarnaen; Al Ramadhani, Farchan Mushaf; Sajuri
Jurnal Pertanian Agros Vol 27 No 3 (2025): EDISI JULI
Publisher : Fakultas Pertanian Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v27i3.113

Abstract

Leaf area is an important parameter in plant physiology studies because it is directly related to photosynthetic activity and plant productivity. However, conventional methods for measuring leaf area still face limitations in terms of cost, equipment, and efficiency. This study aimed to analyze the leaf constant values of starfruit and sapodilla plants based on digital image processing as a foundation for applying the Montgomery method. A total of 40 leaf samples from each species were analyzed using digital imagery via ImageJ software to obtain the measured leaf area, which was then compared to the predicted leaf area using the Montgomery equation. The resulting leaf constants were 0.520 for starfruit and 0.642 for sapodilla, with a stable and consistent value distribution. Prediction accuracy evaluation using R², RMSE, NRMSE, NSE, and Willmott’s index showed low error rates and very high model efficiency. These findings suggest that the obtained leaf constants are reliable for rapid and non-destructive estimation of leaf area. This method has the potential for broader application in supporting precision agriculture and efficient monitoring of tropical plant growth.

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