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All Journal Haga: Jurnal Pengabdian Kepada Masyarakat Jurnal Sapta Agrica
Dian Agung Sanora Laia
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Journal : Jurnal Sapta Agrica

 1 
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.
Co-Authors Della Howu Howu Zendrato Helmin Parida Zebua Kurnia Selekta Etika Harefa Natalia Kristiani Lase Putra Hidayat Telaumbanua Ridho Victory Nazara Robert Alberth Sole Yarman Gulo Yoel Melsaro Larosa