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Jurnal Sapta Agrica
Published by Universitas Nias Raya
ISSN : -     EISSN : 29628210     DOI : 10.57094
Core Subject : Science, Education, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education
JURNAL SAPTA AGRICA adalah jurnal terbitan berkala yang diterbitkan oleh Fakultas Pertanian Universitas Nias Raya. Isi jurnal mencakup bidang keilmuan Agroteknologi meliputi Pemuliaan Tanaman,Ilmu Benih, Agronomi, Hortikultura, Hama Penyakit Tanaman, Ilmu Tanah, Bioteknologi, crop dataran rendah, crop dataran tinggi dan keilmuan pertanian secara luas. Jurnal ini diterbitkan sebagai sarana dan wadah para dosen, ilmuan, peneliti maupun pakar bidang pertanian mempublikasikan hasil-hasil penelitiannya untuk menunjang Tugas dan Program Tri Dharma Perguruan Tinggi secara Umum.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 40 Documents
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PENGARUH SERBUK DAUN SERAI (Cymbopogon nardus L.) SEBAGAI INSEKTISIDA ALAMI DALAM MENGUSIR HAMA KUTU BERAS (Tribolium castaneum L.) Willa; Yarsa Erianti; Syamsurizal
Jurnal Sapta Agrica Vol 4 No 1 (2025): Jurnal Sapta Agrica
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jsa.v4i1.2500

Abstract

Rice weevil (Tribolium castaneum L.) infestation poses a serious threat that directly impacts food security and the economic welfare of farmers. Pest control is often carried out using conventional synthetic pesticides. However, the use of chemical pesticides causes various problems, such as environmental pollution and health risks to humans. Therefore, this study aims to evaluate the effect of different concentrations of natural extract from citronella (Cymbopogon nardus L.) leaves on the mortality rate of rice weevils as a more environmentally friendly pest control alternative. This research was conducted using an experimental method with a completely randomized design (CRD). Several concentrations of citronella leaf powder were tested on the population of Tribolium castaneum L., with treatments of 2 grams, 4 grams, and 6 grams, along with a control group without treatment. Data collection was performed using a structured observation checklist to record the number of rice weevil mortalities in each treatment. This technique allowed the researchers to systematically observe and measure the pest’s response to the treatments. The results showed that the application of citronella leaf powder at various concentrations did not have a significant effect on rice weevil mortality. Thus, it can be concluded that citronella leaf powder as a natural insecticide was not effective in controlling rice weevil infestations under the conditions of this study. Further research is needed to identify more effective dosages or application methods to utilize the potential of citronella as an alternative natural pesticide.
THE INFLUENCE OF SOIL TEXTURE TYPES ON LAND RESILIENCE TO DROUGHT IN SOUTH NIAS Harefa, Darmawan
Jurnal Sapta Agrica Vol 4 No 1 (2025): Jurnal Sapta Agrica
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jsa.v4i1.2585

Abstract

This study aims to analyze the influence of soil texture types on land resilience to drought in South Nias, with a focus on the soil's capacity to retain moisture during prolonged dry seasons. The collected data include soil texture types (sand, silt, clay, and loam) and physical soil properties that affect water retention. The results indicate that sandy soils have low water-holding capacity, making them highly vulnerable to drought. In contrast, clay soils, while having high water retention, often face poor drainage issues. Loamy soils, which are a mixture of sand, silt, and clay, demonstrate better drought resilience due to a balanced capacity for water retention and drainage. The study also highlights the importance of soil management strategies tailored to soil texture types to enhance land resilience to drought. These include mulching, drip irrigation, and increasing organic matter content. Based on these findings, the application of more effective soil conservation techniques is recommended to support sustainable agriculture in South Nias.
PENGARUH PEMBERIAN PUPUK ORGANIK KOTORAN AYAM DALAM BENTUK PADAT DAN CAIR TERHADAP PERTUMBUHAN TANAMAN CABAI MERAH Artikan Halawa
Jurnal Sapta Agrica Vol 4 No 1 (2025): Jurnal Sapta Agrica
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jsa.v4i1.3404

Abstract

Organic fertilizers have many advantages, including: improving soil structure, maintaining soil fertility, helping plants grow, increasing microbial activity, preventing excess nutrient supply, maintaining soil moisture, increasing soil binding capacity, being safe for plants and the environment, and being inexpensive and readily available. The purpose of this study was to determine the effect of applying organic chicken manure fertilizer in solid and liquid form on the growth of red chili plants. The approach in this study was quantitative with a purely experimental research type. The population and sample in this study were all 96 red chili plants. The data collection techniques used in this study were: (1) Observation; (2) Documentation Study. This study used a factorial Randomized Block Design (RBD) consisting of two factors: the first factor was chicken manure fertilizer in solid form, which consisted of four levels: no treatment (PD0), 1.17 (PD1), 1.76 (PD2), and 2.35 (PD3). The second factor was liquid chicken manure, which consisted of four levels: no treatment (PD0), 40 ml/liter of water (PC1), 60 ml/liter of water (PC2), and 80 ml/liter of water (PC3). Therefore, the conclusion of this study is that the application of solid chicken manure significantly affected the growth of red chili plants, specifically in terms of plant height, leaf number, stem diameter, and branch number. This is because chicken manure contains or provides essential nutrients, improves the soil, and supports the activity of soil microorganisms. However, the application of liquid chicken manure did not significantly affect the growth of red chili plants. This is because the organic fertilizer (POC) from chicken manure is easily washed out of the growing medium and its presence is only temporary. The researchers recommend that farmers utilize organic chicken manure as a substitute for synthetic fertilizers, as it is readily available and environmentally friendly.
RESPON PERTUMBUHAN TANAMAN TOMAT (Solonum Lycopersium L) TERHADAP PEMBERIAN PUPUK KANDANGDARI KOTORAN BABI Wantri Niat Hati Bazikho; Nonozisokhi Gea
Jurnal Sapta Agrica Vol 4 No 1 (2025): Jurnal Sapta Agrica
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jsa.v4i1.3566

Abstract

This study aimed to investigate the effect of pig manure fertilizer on the growth and yield of tomato plants. The research was conducted from June to August 2025 using a one-factor Completely Randomized Design (CRD), with the factor being the dose of pig manure fertilizer at four levels: PK0 (no treatment), PK1 (15 tons/ha), PK2 (30 tons/ha), and PK3 (45 tons/ha). Each experimental unit consisted of six plants, resulting in a total of 72 plants observed. The parameters measured included plant height, number of leaves, and number of flowers. The results indicated that the application of pig manure fertilizer had a significant effect on all observed growth parameters. The most optimal vegetative and generative growth was observed at the PK3 dose (45 tons/ha). This dose significantly increased plant height, leaf number, and flower number compared to the other treatments. The improved growth is likely associated with the availability of macronutrients such as nitrogen (N), phosphorus (P), and potassium (K) contained in pig manure. These nutrients not only support vegetative development but also accelerate flower formation as part of generative growth. In addition to directly benefiting plant growth, the use of pig manure also contributes to improving the physical, chemical, and biological properties of the soil, such as enhancing soil fertility, structure, and microbial activity. Another advantage is its wide availability and relatively low cost, making it a practical and economical solution for farmers. This study confirms that the appropriate use of pig manure fertilizer can increase tomato productivity while supporting sustainable agricultural practices.
INTEGRATED FERTILIZATION FORMULATION: EFFECT OF GOAT MANURE AND PEARL NPK ON BIOMASS AND YIELD OF STRING BEANS Della Howu Howu Zendrato; Helmin Parida Zebua; Dian Agung Sanora Laia; Putra Hidayat Telaumbanua; Natalia Kristiani Lase; Yoel Melsaro Larosa; Yarman Gulo; Ridho Victory Nazara
Jurnal Sapta Agrica Vol 4 No 1 (2025): Jurnal Sapta Agrica
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jsa.v4i1.3908

Abstract

This study aims to evaluate the effect of goat manure and Mutiara NPK inorganic fertilizer on the vegetative growth, biomass, and yield of long bean (Vigna sinensis L.). The research was conducted using a factorial Randomized Group Design (RAK) consisting of two main factors. The first factor was the dose of goat manure with three levels: J1 (2 kg/plot), J2 (3 kg/plot), and J3 (4 kg/plot). The second factor was the application of NPK Mutiara fertilizer with four levels: P0 (control/no treatment), P1 (100 kg/ha or 24 g/plot), P2 (150 kg/ha or 36 g/plot), and P3 (200 kg/ha or 49 g/plot). Each experimental unit consisted of a uniform number of long bean plants to ensure reliable observations. The results indicated that both goat manure and NPK fertilizer significantly influenced vegetative growth parameters, including plant height, leaf number, and stem diameter, as well as yield components such as pod number, pod length, and total biomass. Furthermore, there was a significant interaction between goat manure and NPK application, where the optimal combination resulted in the highest biomass accumulation and pod yield. Specifically, the combination of the highest goat manure dose (J3) and moderate NPK dose (P2) provided the most favorable effect on long bean growth and productivity. These findings suggest that integrating organic and inorganic fertilizers can optimize nutrient availability, support sustainable crop production, and improve long bean yields. The study provides practical guidance for farmers seeking environmentally friendly fertilization strategies to enhance legume crop performance, while promoting soil fertility and sustainable agricultural practices.
ANALISIS RISIKO USAHATANI BAWANG MERAH Yoel Melsaro Larosa; Ridho Victory Nazara; Kurnia Selekta Etika Harefa; Putra Hidayat Telaumbanua; Helmin Parida Zebua; Dian Agung Sanora Laia; Natalia Kristiani Lase; Yarman Gulo
Jurnal Sapta Agrica Vol 4 No 2 (2025): Jurnal Sapta Agrica
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jsa.v4i2.3912

Abstract

This study aims to analyze the level of production and price risk in red onion farming, as well as to examine the behavior of red onion farmers in Tiganderket Village, Tiganderket Subdistrict, Karo Regency. The main focus of the study is to understand the extent of the risks faced by farmers in red onion production and how their decisions and willingness to take risks influence farming practices. The sample was determined using a census method, where the entire population of red onion farmers in the study area was used as respondents, totaling 15 individuals. Primary data were collected through surveys and direct interviews, ensuring that the information reflects the actual conditions in the field. Data analysis was conducted using multiple linear regression to determine the influence of several variables on production and price risk levels. The results showed that the production risk in red onion farming in Tiganderket Village is considered high, indicated by a coefficient of variation of 0.52, which exceeds the threshold of 0.5. Conversely, the price risk is relatively low, with a coefficient of variation of 0.02, well below the threshold. Furthermore, the behavior of farmers in facing risks is also considered high; all respondents, 100%, demonstrated a willingness to take risks in red onion farming practices. These findings indicate that although red onion production carries a high level of risk, farmers still exhibit proactive behavior and a willingness to make risky decisions, while price fluctuation risks are relatively low. Therefore, economically, red onion farming can still be carried out with a reasonable degree of certainty. These results can serve as a basis for developing agricultural strategies and supportive policies for red onion farmers in Karo Regency.
INTEGRATION OF MODERN SOIL SCIENCE, INTEGRATED FARMING, AND NIAS LOCAL WISDOM FOR AGRICULTURAL PRODUCTIVITY IMPROVEMENT Darmawan Harefa
Jurnal Sapta Agrica Vol 4 No 2 (2025): Jurnal Sapta Agrica
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jsa.v4i2.3914

Abstract

This study explores the integration of modern soil science, integrated farming systems (IFS), and Nias local wisdom to improve agricultural productivity in Desa Bawonifaoso, Kecamatan Teluk Dalam, Kabupaten Nias Selatan. The research aims to examine how combining scientific soil management practices with diversified farming techniques and traditional knowledge can enhance crop yields, environmental sustainability, and community resilience. Using a qualitative literature review approach, data were collected from scientific journals, books, conference proceedings, and credible online sources that discuss soil fertility, integrated farming, and the application of local wisdom in agriculture. The findings indicate that modern soil science interventions such as soil testing, rational nutrient management, and organic amendments can optimize soil fertility and crop growth. When applied alongside integrated farming practices and local wisdom traditions, such as communal land management, crop rotation aligned with cultural calendars, and organic residue utilization, farmers achieve higher yields, reduced dependency on chemical inputs, and improved environmental sustainability. Furthermore, integrating these approaches strengthens community engagement and knowledge transfer, ensuring sustainable adoption. The study concludes that the tripartite integration of modern soil science, IFS, and local wisdom offers a holistic, culturally appropriate, and environmentally sustainable model for agricultural development. It is recommended that agricultural extension programs and policymakers support this integrated approach to enhance productivity, resilience, and food security in rural Indonesian communities.
PENGARUH PEMANGKASAN CABANG DAN BEBERAPA JENIS VARIETAS TERHADAP PERTUMBUHAN TANAMAN CABAI MERAH (CAPSICUM ANNUM L) DI DESA NANOWA Adirlina Laia
Jurnal Sapta Agrica Vol 4 No 2 (2025): Jurnal Sapta Agrica
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jsa.v4i2.3586

Abstract

This study aimed to determine the effect of branch pruning and several varieties on the growth of red chili plants. The research was conducted at the Agrotechnology practicum field. A randomized block design (RBD) with two factors was used: the first factor consisted of two varieties, V1 (TM999) and V2 (Lado F1), while the second factor included three levels, namely P0 (no treatment), P1 (field-top pruning), and P2 (side-shoot pruning). Each treatment consisted of five plants. The observed data were analyzed using analysis of variance (ANOVA) and followed by an LSD test at a 5% significance level. The results showed that branch pruning significantly affected the vegetative growth of red chili plants in almost all observed parameters. Plant height exhibited a consistent response at all observation periods (1–4 WAP), the number of leaves showed a significant response after the initial adaptation phase (3–4 WAP), and stem diameter increased significantly at 4 WAP.
RESPON PEMBERIAN ABU SABUT KELAPA DAN PUPUK KCL TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN BAWANG MERAH Yanema Waruwu
Jurnal Sapta Agrica Vol 4 No 2 (2025): Jurnal Sapta Agrica
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jsa.v4i2.3587

Abstract

Shallot (Allium ascalonicum L.) is one of the leading vegetable commodities that has long been cultivated intensively by farmers. The application of coconut husk ash and KCl fertilizer in shallot cultivation is considered necessary to enhance its productivity. This study aimed to evaluate the response of coconut husk ash and KCl fertilizer on the growth and yield of shallot. The research was conducted at the Agrotechnology Practicum Field, located in Nanowa Village, Teluk Dalam District, South Nias. The experiment was arranged in a factorial randomized block design (RBD), with each factor consisting of three treatment levels and three replications, resulting in nine treatment combinations. Observed parameters included plant height, number of leaves, number of tillers, bulb weight, and bulb number. Data were analyzed using analysis of variance (ANOVA), followed by the Least Significant Difference (LSD) test. The LSD results showed that the interaction of coconut husk ash and KCl fertilizer had no significant effect on either the growth or yield parameters of shallot. The combination treatments of coconut husk ash and KCl fertilizer did not significantly influence shallot performance. The highest values were obtained at the treatment level A0K0 (without coconut husk ash + 300 kg/ha KCl).
PENGARUH PUPUK KANDANG AYAM DAN PUPUK NPK TERHADAP PERTUMBUHAN TANAMAN JAGUNG MANIS (Zea mays L.) Santria Melsin Susanti Laia
Jurnal Sapta Agrica Vol 4 No 2 (2025): Jurnal Sapta Agrica
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jsa.v4i2.3604

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pupuk kandang ayam dan pupuk NPK terhadap pertumbuhan jagung manis (Zea mays L.). Penelitian dilaksanakan di Desa Nanowa pada Maret–Agustus 2025 dengan menggunakan Rancangan Acak Kelompok (RAK) dua faktor. Faktor pertama adalah pupuk kandang ayam dengan tiga taraf: A0 (tanpa perlakuan), A1 (10 ton/ha = 0,8 kg/plot), dan A2 (20 ton/ha = 1,6 kg/plot). Faktor kedua adalah pupuk NPK dengan tiga taraf: N0 (tanpa perlakuan), N1 (100 kg/ha = 80 g/plot atau 20 g/tanaman), dan N2 (150 kg/ha = 120 g/plot atau 30 g/tanaman). Setiap unit percobaan terdiri dari empat tanaman, sehingga total keseluruhan 108 tanaman. Data dianalisis dengan sidik ragam dan dilanjutkan uji BNT 5%. Parameter yang diamati meliputi tinggi tanaman, jumlah daun, dan umur berbunga. Hasil penelitian menunjukkan bahwa dosis A2 (1,6 kg/plot) memberikan hasil terbaik, sedangkan interaksi kedua faktor tidak berpengaruh nyata.

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