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The Effect of Pearl Oyster (Pinctada maxima L.) Biofouling Waste Organic Fertilizer and Watering Interval on The Growth and Results of Mustard Greens (Brassica juncea L.) Nendissa, Jeanne Ivonne; Riry, Johan; Amba, Martha; Soplanit, Rudy
International Journal of Multidisciplinary: Applied Business and Education Research Vol. 4 No. 6 (2023): International Journal of Multidisciplinary: Applied Business and Education Rese
Publisher : Future Science / FSH-PH Publications

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijmaber.04.06.04

Abstract

This research was conducted in Pelita Jaya Village, Pohon Batu Hamlet, West Seram Regency from June to July 2022. The research was conducted to study the effect of the interaction of doses of organic fertilizer from pearl oyster biofouling waste and intervals of water administration on the growth and yield of mustard plants. The design used in this study was a factorial randomized group trial design (RAK) with two treatments as follows: Factor I: Pearl Oyster Biofouling Waste Fertilizer (L) with 4 levels, namely L0 = Control, L1 = Dosage of 50 gr/tan, L = 100 g/tan and L3 = 150 gr/tan Factor II : Watering Time Interval (W) namely W1 = 1 day, W2 = 2 days and W3 = 3 days. Each treatment was combined to obtain 12 treatments with 3 replications, resulting in 36 experimental plots. In each plot, 4 sample plants were taken so that in total there were 144 sample plants. The results of this study indicate that the interaction of organic fertilizer from pearl oyster biofouling waste with intervals of watering has a very significant effect on the growth and yield of mustard plants (number of leaves, leaf area, plant fresh weight and plant dry weight). The best treatment interaction was the combined dose of pearl oyster biofouling waste fertilizer 150 g/tan with an interval of watering once every three days for mustard greens (Brassica juncea L.)
Pengaruh Konsentrasi dan Frekuensi POC Biofouling Tiram Mutiara terhadap Kerapatan Stomata Hotong (Setaria italica (L.) Nendissa, Jeanne Ivonne; Riry, Johan; Patty, Jogeneis; Amba, Martha; Wahditiya, Andi Adriani; Lating, Raudatul Janna
Media Pertanian Vol 10, No 2 (2025): Media Pertanian
Publisher : Program Studi Agroteknologi Universitas Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37058/mp.v10i2.16433

Abstract

Ketersediaan nutrisi berperan penting dalam mengatur fungsi fisiologis tanaman, termasuk pembentukan dan kerapatan stomata yang memengaruhi efisiensi fotosintesis serta penggunaan air. Salah satu sumber nutrisi organik potensial adalah Pupuk Organik Cair (POC) berbasis biofouling Tiram Mutiara, yang mengandung unsur hara esensial seperti nitrogen, fosfor, dan kalium. Penelitian ini bertujuan untuk menganalisis pengaruh konsentrasi dan frekuensi aplikasi POC biofouling Tiram Mutiara terhadap kerapatan stomata tanaman hotong (Setaria italica (L.)). Penelitian dilaksanakan di Desa Mamala, Kabupaten Maluku Tengah, dari Oktober 2023 hingga Januari 2024, menggunakan rancangan acak kelompok lengkap (RAKL) dua faktor, yaitu konsentrasi POC (0, 10, 20, dan 30 mL/L) serta frekuensi aplikasi (satu kali pada 25 Hari Setelah Tanam [HST] dan dua kali pada 25 dan 50 HST). Hasil analisis varians menunjukkan bahwa kedua faktor berpengaruh signifikan terhadap kerapatan stomata, tinggi tanaman, dan jumlah daun. Perlakuan P3W2 (30 mL/L, dua kali aplikasi) memberikan nilai tertinggi dengan kerapatan stomata 366,67 stomata/cm². Hasil ini menunjukkan bahwa peningkatan konsentrasi dan frekuensi aplikasi POC biofouling meningkatkan aktivitas fisiologis tanaman melalui pembentukan stomata yang lebih padat dan efisien. Dengan demikian, POC biofouling Tiram Mutiara berpotensi digunakan sebagai pupuk organik ramah lingkungan yang mendukung pertumbuhan dan efisiensi fotosintesis tanaman hotong.  Nutrient availability plays a crucial role in regulating plant physiological functions, including stomatal formation and density, which directly affect photosynthetic efficiency and water use. One promising organic nutrient source is Pearl Oyster biofouling-based liquid organic fertilizer (POC), which contains essential elements such as nitrogen, phosphorus, and potassium. This study aimed to examine the effects of different concentrations and application frequencies of Pearl Oyster biofouling POC on the stomatal density of foxtail millet (Setaria italica (L.)). The research was conducted in Mamala Village, Central Maluku Regency, from October 2023 to January 2024, using a randomized complete block design (RCBD) with two factors: POC concentration (0, 10, 20, and 30 mL/L) and application frequency (once at 25 Days After Planting [DAP] and twice at 25 and 50 DAP). Analysis of variance revealed significant effects of both factors on stomatal density, plant height, and leaf number. The highest stomatal density (366.67 stomata/cm²) was observed in treatment P3W2 (30 mL/L applied twice). These findings indicate that higher concentrations and more frequent applications of biofouling-based POC enhance plant physiological activity by promoting denser and more efficient stomatal development. Therefore, Pearl Oyster biofouling POC can serve as an environmentally friendly organic fertilizer that supports improved growth and photosynthetic efficiency in Setaria italica (L.).
Optimizing Biotogrow Liquid Fertilizer Concentration and Application Frequency for Lettuce Cultivation Under Tropical Cambisol Conditions Nendissa, Jeanne Ivonne; Wahditiya, Andi Adriani; Amba, Martha
Agro Bali : Agricultural Journal Vol 8, No 3 (2025)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v8i3.2548

Abstract

This greenhouse study investigated the impact of Biotogrow liquid organic fertilizer concentration and application frequency on lettuce (Lactuca sativa L.) growth and yield at Telaga Kodok from May to August 2024. The purpose of the research is to determine the effect of Biotogrow Liquid Fertiliser concentration and fertilisation interval, as well as the interaction between the two, on the growth and production of lettuce (Lactuca sativa L.). Using a factorial Randomized Complete Block Design with three replications, researchers tested four Biotogrow concentrations (0, 2, 5, and 8 ml L⁻¹) and four fertilization intervals (0, 4, 7, and 10 days). Growth parameters, including plant height, leaf number, leaf area, fresh weights, shoot-to-root ratio, and harvest index, were measured at 14, 21, 28, and 35 days after planting. ANOVA and Duncan's Multiple Range Test (α = 0.05) revealed significant findings. Biotogrow concentration substantially influenced plant height at 21, 28, and 35 DAP (P < 0.01), leaf number throughout all observation periods (P < 0.05 at 14 DAP; P < 0.01 thereafter), plus shoot and root fresh weight, leaf area, and harvest index (P < 0.01). Fertilization intervals significantly affected all parameters except the shoot-to-root ratio (P < 0.01). Importantly, concentration-interval interactions showed highly significant effects on leaf number at 35 DAP, shoot fresh weight, and leaf area (P < 0.01), with significant impacts on plant height at 28 and 35 DAP, leaf number at 28 DAP, and root fresh weight (P < 0.05). These results demonstrate that optimizing both Biotogrow concentration and application timing can significantly enhance lettuce productivity under greenhouse conditions.