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All Journal MEDIA UNIKA - Majalah Ilmiah Caraka Tani: Journal of Sustainable Agriculture Agroprimatech Agro Bali: Agricultural Journal Agrica Ekstensia Fruitset Sains : Jurnal Pertanian Agroteknologi PERTANIAN TROPIK Tabela Jurnal Pertanian Berkelanjutan Journal of Agrotechnology and Sustainability
Yustina Sri Sulastri
Universitas Katolik Santo Thomas, Indonesia
Agriculture, Biological Sciences & Forestry Education Environmental Science

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PENILAIAN TANAMAN NILAM DALAM MEREMEDIASI LOGAM CADMIUM PENGARUHNYA PADA PERTUMBUHAN DAN KANDUNGAN MINYAK ATSIRI Sulastri, Yustina Sri; Panjaitan, Delima
Agroprimatech Vol. 8 No. 1 (2024): Agroprimatech
Publisher : Prodi Agroteknologi Fakultas Agro Teknologi Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/agroprimatech.v8i1.4977

Abstract

Heavy metal pollution in urban soil is an increasingly urgent problem today. High concentrations of heavy metals in soil can cause long-term risks to ecosystems and humans. It is necessary to find a solution to reduce heavy metal pollution, especially through phytoremediation using patchouli plants. Research on patchouli plants was carried out using a non-factorial randomized block design; consists of 1 factor, namely the concentration of the heavy metal Cd which consists of five levels: K0= 0 ppm, K= 85 ppm, K2= 170 ppm, K3= 255 ppm, K4= 340 ppm. Each treatment was made in 3 replications where each experimental unit consisted of 3 plants. Data on essential oil content and uptake of the heavy metal Cd from the results of this study were analyzed using IBM SPSS Statistics 20, then the treatment that showed a real influence on the observed variables was continued with the Duncan's Multiple Range Test (DMRT) at a confidence level of 5%. The parameters observed were root length (cm), root volume (cm3), root wet and dry weight (g), shoot wet and dry weight (g), essential oil content (ml/g), cadmium uptake in the roots and shoots. (ppm). The research results show that patchouli plants are classified as plants that are resistant to heavy metal stress, this can be indicated by their ability to grow and develop well at concentrations ranging from 0 ppm to 255 ppm. Based on the absorbed Cd content, patchouli plants are classified as phyto-extraction plants because they are able to accumulate greater Cd metal in their shoots compared to the Cd content in their roots. Likewise, the production of essential oils produced is not influenced by the concentration of Cd metal.
Growth Percentage And Length Of Mucuna Bracteata Tendles With The Provision Of Local Microorganisms (Mol) From Banana Corn Tanjung, Agung Rafiul Naldi; Ginting, Chelvin Van Roy; Sulastri, Yustina Sri; Sihaloho, Martha Adiwaty; Sitinjak, Rama Riana; Pratomo, Bayu
Agroprimatech Vol. 9 No. 1 (2025): Agroprimatech
Publisher : Prodi Agroteknologi Fakultas Agro Teknologi Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/agroprimatech.v9i1.5356

Abstract

Mucuna bracteata plants can be propagated in two ways: generatively and vegetatively. Vegetative propagation is done through cuttings, while generative propagation uses seeds. In 1999, Mucuna bracteata found it very difficult to produce flowers, fruits, and seeds. Due to this difficulty, propagation can be done through cuttings. This study uses a Non-Factorial Randomized Block Design (RBD) with 4 Treatments (P) and 6 Replications (U). The concentration of watering consists of 4 levels: P0 (0 ml), P1 (50 ml), P2 (150 ml), and P3 (250 ml). Meanwhile, the soaking duration also consists of 4 levels: P0 (0 minutes), P1 (5 minutes), P2 (10 minutes), and P3 (15 minutes). The results of the study showed that the interaction between the concentration of watering with MOL (Microorganism Local) from banana stems and the soaking duration did not have a significant effect on all parameters. Various concentrations of watering with MOL from banana stems and soaking duration significantly affected the growth of Mucuna bracteata. Although statistically, it did not show a significant effect, several treatment combinations could be observed, such as U6P3, which showed the highest root weight (15.44 grams). Then, the vine length was 117.1 cm, the number of leaves was 20, and the number of nodules was 11. As the highest values from P3, this shows the highest concentration of watering and soaking duration with MOL from banana stems. Thus, this effort can reduce agricultural waste and pathogens.
Analysis Of Biomass Of Mucuna Bracteata DC Due To The Provision Of Coffee Skin Waste As An Alternative Fertilizer Tarigan, Andry Admaja; Perangin-angin, Hagai Jorenta; Afrianti, Suratni; Sulastri, Yustina Sri; Sihaloho, Martha Adiwaty; Pratomo, Bayu
Agroprimatech Vol. 9 No. 1 (2025): Agroprimatech
Publisher : Prodi Agroteknologi Fakultas Agro Teknologi Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/agroprimatech.v9i1.6504

Abstract

Biomass Analysis of Mucuna bracteata DC Due to the Application of Coffee Husk Waste as an Organic Nutrient Source. Mucuna bracteata DC is a cover crop that plays a crucial role in soil conservation and soil fertility improvement. This study aims to analyze the effect of liquid organic fertilizer (LOF) derived from coffee husk waste on the biomass growth of Mucuna bracteata DC, particularly in terms of fresh shoot weight, fresh root weight, dry shoot weight, and dry root weight. The research was conducted at Jalan Kuali No. 50, Medan Petisah District. The experiment was designed using a Completely Randomized Block Design (CRBD) with a single-factor treatment consisting of seven LOF dosage levels: K0 (no treatment), K1 (5 mL/polybag), K2 (10 mL/polybag), K3 (15 mL/polybag), K4 (20 mL/polybag), K5 (25 mL/polybag), and K6 (30 mL/polybag), with four replications, totaling 28 experimental plots. The results showed that the application of coffee husk LOF significantly affected the biomass growth of Mucuna bracteata DC. The highest fresh shoot weight (9.51 g) and dry shoot weight (2.14 g) were recorded in treatment K6 (30 mL/polybag), whereas the highest fresh root weight (2.29 g) and dry root weight (0.32 g) were observed in treatment K5 (25 mL/polybag). Higher LOF doses generally increase plant biomass up to an optimal threshold, beyond which nutrient absorption efficiency by roots declines. Overall, the optimal LOF dosage for maximizing biomass growth in Mucuna bracteata DC ranges between 25–30 mL/polybag. The use of coffee husk waste as an organic nutrient source presents a sustainable alternative for improving plant productivity while reducing dependency on synthetic fertilizers.
The Effect of Planting Distance and Urea Fertiliser Dosage on the Growth of Lemongrass in a Polyculture System Sulastri, Yustina Sri; Harefa, Kurnia Selekta Etika; Munte, Marta Yulina
Agroprimatech Vol. 9 No. 2 (2025): Agroprimatech
Publisher : Prodi Agroteknologi Fakultas Agro Teknologi Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/agroprimatech.v9i2.7627

Abstract

This study aimed to determine the effect of planting distance and urea fertilizer dosage on the growth of fragrant lemongrass in a polyculture cultivation system under rubber stands. The research was conducted on Jl. Sei Putih Rispa, Kelapa Satu Village, Galang District, Deli Serdang Regency, North Sumatra, at an altitude of about 65 m above sea level from May to August 2025. The experiment used a factorial Randomized Block Design (RBD) with two factors: planting distance and urea dosage. Planting distance consisted of three levels, namely J1 (20 × 40 cm), J2 (20 × 60 cm), and J3 (20 × 80 cm). Urea dosage consisted of four levels: U0 (0 g/plant), U1 (5 g/plant), U2 (10 g/plant), and U3 (20 g/plant). These treatments produced 12 combinations with three replications, resulting in 36 plots, each with four samples, totaling 144 plants. Observations were made at harvest, including root fresh weight, shoot fresh weight, root volume, root dry weight, shoot dry weight, and root-shoot ratio. The results indicated that planting distance significantly influenced root fresh weight, shoot fresh weight, root volume, root dry weight, and shoot dry weight, whereas urea dosage did not show a significant effect on the measured parameters. The most favorable planting distance for fragrant lemongrass growth was 20 × 80 cm, followed by 20 × 60 cm, suggesting that wider spacing supported better plant development in a polyculture system under rubber stands.
Pertumbuhan Vegetatif Mucuna bracteata D.C dengan Pemberian Pupuk Organik Cair Limbah Kulit Kopi Depari, Ari Angga Pratama; Mendrofa, Daniel; Sembiring, lidia; Ginting, Billi Sanjaya; Tarigan, Andry Admaja; Nasution, Muhammad Arif; Pinem, Laura Juita; Sulastri, Yustina Sri; Pratomo, Bayu
Tabela Jurnal Pertanian Berkelanjutan Vol. 4 No. 1 (2026): Edisi Januari
Publisher : Ilmu Bersama Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56211/tabela.v4i1.1570

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk organik cair (POC) berbahan limbah kulit kopi terhadap pertumbuhan awal benih Mucuna bracteata D.C. sebagai tanaman penutup tanah yang umum digunakan di perkebunan kelapa sawit. Penelitian dilaksanakan di Medan dan Sibolangit pada Februari–Juli 2025 menggunakan Rancangan Acak Kelompok (RAK) nonfaktorial dengan enam taraf dosis POC, yaitu 0, 20, 40, 60, 80, dan 100 ml per 100 ml air per polybag, serta empat ulangan. Parameter yang diamati meliputi panjang sulur dan jumlah daun. Hasil penelitian menunjukkan bahwa pemberian POC limbah kulit kopi tidak berpengaruh nyata terhadap kedua parameter pertumbuhan yang diamati. Panjang sulur tertinggi diperoleh pada dosis 40 ml dengan rerata 17,95 cm, sedangkan jumlah daun terbanyak terdapat pada dosis 80 ml dengan rerata 9,88 helai. Namun, berdasarkan hasil analisis ANOVA, tidak terdapat perbedaan yang signifikan antar perlakuan. Dengan demikian, dapat disimpulkan bahwa aplikasi POC limbah kulit kopi pada dosis yang diuji belum mampu meningkatkan pertumbuhan awal Mucuna bracteata D.C. secara nyata.
Co-Authors afrianti, Suratni Arung Luoma Harefa Barasa, Jojong Sah Kian Benauli, Arkhiadi Dedi Kusbiantoro Delima Panjaitan Depari, Ari Angga Pratama Edison Purba Elseria Siburian Fransisca Natalia Sihombing Ginting, Billi Sanjaya Ginting, Chelvin Van Roy Gusriani, Yunda Jojong Sah Kian Barasa Junaidi Junaidi Koko Tampubolon Koko Tampubolon Kurnia Selekta Etika Harefa Kusbiantoro, Dedi Manungkalit, Fernando Mendrofa, Daniel Muhammad Arif Nasution Munte, Marta Yulina Nazara, Sofinta Patricia Oktavianus, Angga Perangin-angin, Hagai Jorenta Pinem, Laura Juita Pratomo, Bayu Rajagukguk, Fransisco Rama Riana Sitinjak Saitararak, Oktaria Sanggam Dera Rosa Tampubolon Sembiring, lidia Siagian, Welda Sihaloho, Martha Adiwaty Sinaga, Nurvita Sinaga, Ricci Sony Tri Septian Samosir Syahibal Karim Tanjung, Agung Rafiul Naldi Tarigan, Andry Admaja Tarigan, Andry Atmaja Yunda Gusriani Zavandri Purba