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All Journal International Journal of Natural Science Studies and Development (IJOSS) Jurnal Agricultural Science Agricultural Revolution Journal
Dini Puspita Yanty
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Effect Of Lantana camara Plant Leaf Extracts On Black Soybean (Glycine soja L.) Plant Pests Simanjuntak , Maria Phibertha; Wahyuni, Siti Hardianti; Dini Puspita Yanty
Jurnal Agricultural Science Vol 20 No 1 (2025): MAY
Publisher : FAKULTAS PERTANIAN UNIVERSITAS RATU SAMBAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/jas.v20i1.295

Abstract

This study aims to determine the effect of leaf and flower extracts (Lantana camara) in controlling pod borers (Etiella zincknella) on black soybean (G. soja (L) Merril). This research was conducted in February-June 2024. The study used the non-factorial RAK (Randomized Group Design) method with treatments: PO = No treatment. P1 = Concentration of 5 grams of Lantana camara leaf extract /L. P2 = Concentration of 10 grams of Lantana camara leaf extract /L. P3 = Concentration of 15 grams of Lantana camara leaf extract /L. P4 = Concentration of 20 grams of Lantana camara leaf extract /L. P5 = Concentration of 25 grams of Lantana camara leaf extract /L. The parameters observed were: Plant height, number of leaves, weight of filled pods, percentage of attack. The treatment of Lantana camara leaf extract did not significantly affect the height, number of leaves and weight of pods of black soybean plants. In the percentage of treatment P0, P1, P2, P3 showed no significant difference to the percentage of black soybean pod sucking pest attack but the four treatments were significantly different from the P4 and P5 treatments.
Effect Of Lantana Camara Plant Leaf Extracts On Black Soybean (Glycine soja L.) Plant Pests Simanjuntak, Maria Phibertha; Wahyuni, Siti Hardianti; Dini Puspita Yanty
Jurnal Agricultural Science Vol 19 No 2 (2024): NOVEMBER
Publisher : FAKULTAS PERTANIAN UNIVERSITAS RATU SAMBAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/jas.v19i2.294

Abstract

This study aims to determine the effect of leaf and flower extracts (Lantana camara) in controlling pod borers (Etiella zincknella) on black soybean (G. soja (L) Merril). This research was conducted in February-June 2024. The study used the non-factorial RAK (Randomized Group Design) method with treatments: PO = No treatment. P1 = Concentration of 5 grams of Lantana camara leaf extract /L. P2 = Concentration of 10 grams of Lantana camara leaf extract /L. P3 = Concentration of 15 grams of Lantana camara leaf extract /L. P4 = Concentration of 20 grams of Lantana camara leaf extract /L. P5 = Concentration of 25 grams of Lantana camara leaf extract /L. The parameters observed were: Plant height, number of leaves, weight of filled pods, percentage of attack. The treatment of Lantana camara leaf extract did not significantly affect the height, number of leaves and weight of pods of black soybean plants. In the percentage of treatment P0, P1, P2, P3 showed no significant difference to the percentage of black soybean pod sucking pest attack but the four treatments were significantly different from the P4 and P5 treatments.
The Role of Liquid Smoke and Biochar Planting Media on Shallot Growth and Production (Allium ascalonicum L) Harahap, Seri Juni Yanti; Rasmita Adelina; Dini Puspita Yanty; Sutan Pulungan
International Journal of Natural Science Studies and Development (IJOSS) Vol. 3 No. 1 (2026): IJOSS
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijoss.v3i1.38

Abstract

Shallots (Allium ascalonicum L.) are a horticultural commodity with high sales value and a complete nutritional profile.. This study was conducted in Padang Lawas Regency from February to April 2025. The research method is an experimental study, using a factorial randomized block design. The first factor is Liquid Smoke consisting of 3 levels, namely: A0 = Without giving liquid smoke, A1 = Liquid smoke 70 ml / L, A2 = Liquid smoke 90 ml / L. Factor II is the provision of rice husk biochar with soil consisting of 3 levels, namely: B0 = Without giving rice husk biochar B1 = rice husk biochar 210 gr / polybag, B2 = rice husk biochar 300 gr / polybag, The parameters observed are Plant Height (cm), Number of Leaves (strands), Number of Bulbs Per Clump (bulbs), Wet Weight of Bulbs Per Clump (grams), Dry Weight of Bulbs Per Clump (grams) and Bulb Weight Loss (%). The data obtained were analyzed using statistical analysis of variance followed by the Least Significant Difference Test (LSD). The results of the study showed that the application of liquid smoke significantly affected growth (plant height) in the early vegetative phase (14 days after planting) and significantly affected shallot production (number of bulbs per clump). The use of liquid smoke at a treatment level of 70 ml/L and biochar at a treatment level of 300 g/polybag produced the best results for shallot cultivation.
The Effect of Moringa Leaf Liquid Organic Fertilizer and Trichoderma on Growth and Yield of Lettuce (Lactuca sativa L.) Narudi, Narudi; Rasmita Adelina; Dini Puspita Yanty; Sutan Pulungan
International Journal of Natural Science Studies and Development (IJOSS) Vol. 3 No. 1 (2026): IJOSS
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijoss.v3i1.39

Abstract

Lettuce (Lactuca sativa L.) is a vegetable with numerous benefits and high economic value. The study was conducted in Neighborhood VI, Pasar Sibuhuan Village, Barumun District, Padang Lawas Regency, North Sumatra, in March 2025. The research method is an experimental study, using a factorial randomized block design. The first factor is liquid organic fertilizer of moringa leaves with 3 levels, namely P0 = Without giving liquid organic fertilizer of moringa leaves, P1 = liquid organic fertilizer of moringa leaves (120 ml/L), P2 = liquid organic fertilizer of moringa leaves (220 ml/L). The second factor is Trichoderma with 3 levels, namely T0 = Without Trichoderma, T1 = Trichoderma (20 gr/polybag), P2 = Trichoderma (30 gr/polybag). The parameters observed are plant height (cm), number of leaves (strands), leaf length (cm), leaf width (cm) and fresh weight (grams). The results of the study showed that the administration of liquid organic fertilizer from Moringa leaves significantly affected the initial vegetative growth (height, leaf length) and production of lettuce plants (P1 dose of 120 ml/L), while the Trichoderma treatment also significantly affected the growth and production of lettuce plants. The dose of 30 g/polybag (T2) had a positive effect, especially in increasing the number and width of leaves, as well as supporting the formation of plant biomass. The combination of moringa leaf POC and Trichoderma yielded the best results for lettuce growth and yield. The P1T2 treatment combination (120 ml/L and 30 g/polybag) was shown to produce the highest plant height and fresh weight.
The Effect of Soaking Red Chili Seeds (Capsicum annum L.) with Various Trichoderma Species in Suppressing Chili Seed-Borne Pathogens Caused by Colletotrichum Rani Selpia Siregar; Dini Puspita Yanty; Jumaria Nasution
Agricultural Revolution Journal Vol. 1 No. 2 (2025): Agricultural Revolution Journal
Publisher : CIB Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64570/agrivolution.v1i2.38

Abstract

Red chili (Capsicum annuum L.) is a horticultural plant that belongs to the Solanaceae family. Chili cultivation often encounters problems, namely anthracnose disease caused by the fungus Colletotrichum. This study aims to determine the most effective Trichoderma species for suppressing red chili seed-borne Colletotrichum pathogens. This study was conducted from March to April 2025. This research method used a Completely Randomized Design (CRD) with 5 treatments and 3 replications. P0 = Control (Without soaking with Trichoderma suspension) P1 = Red chili seeds soaked with Trichoderma harzianum suspension for 9 hours P2 = Red chili seeds soaked with Trichoderma viride suspension for 9 hours P3 = Red chili seeds soaked with Trichoderma asperellum suspension for 9 hours P4 = Red chili seeds soaked with fungicide for 5 minutes. The parameters observed were: Germination percentage (%), seedling height (cm), and number of leaves (stalks). Trichoderma treatment significantly affected germination percentage, red chili seedling height, and leaf number. In terms of treatment percentage, P1, P2, and P3 were significantly different in red chili seed germination percentage, but the three treatments were not significantly different from P0 and P4. Soaking local chili seeds with various Trichoderma suspensions was best found in the types of Trichoderma viride and Trichoderma asperellum because it can be seen from the value of the results of the percentage of germination power, the average height of seedlings, and the number of leaves, the values ​​​​of Trichoderma viride and Trichoderma asperellum were the highest.
Co-Authors Harahap, Seri Juni Yanti Jumaria Nasution Narudi, Narudi Rani Selpia Siregar Rasmita Adelina Simanjuntak , Maria Phibertha Simanjuntak, Maria Phibertha siti hardianti wahyuni, siti hardianti Sutan Pulungan