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All Journal AGRIKA MAPETA Plumula : Berkala Ilmiah Agroteknologi Jurnal Ilmu-Ilmu Pertanian Indonesia Gontor AGROTECH Science Journal Wahana-Bio: Jurnal Biologi dan Pembelajarannya Agriprima : Journal of Applied Agricultural Sciences Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Jurnal Agronomi Tanaman Tropika (JUATIKA) Jurnal Ilmiah RESPATI Agro Bali: Agricultural Journal Nusantara Science and Technology Proceedings Jurnal Pengabdian Multidisiplin Mediagro RADIKULA: Jurnal Ilmu Pertanian Agrocentrum
Dewanti, Felicitas Deru
UPN Veteran Jawa Timur, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Social Sciences Other

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Effect of Paclobutrazol and Gandasil Fertilizers on the Growth and Yield of Cayenne Peppers (Capsicum frutescens L.) in Urban Farming Aisyah Shinta Nila Sari; Agus Sulistyono; Felicitas Deru Dewanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 4 (2025): August 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i4.1118-1127

Abstract

Cayenne pepper cultivation in urban areas faces several obstacles, including infertile soil, irregular watering due to busy daily activities, pests and diseases that spread more easily in urban areas, and high temperature changes. This study aims to obtain the optimal concentration of paclobutrazol and Gandasil fertilizer for the development and production of cayenne pepper. This study used a factorial completely randomized design with two factors, namely paclobutrazol concentration consisting of 4 levels (0 ppm, 75 ppm, 100 ppm, and 125 ppm) and Gandasil B/D fertilizer consisting of 4 levels (1 g/L, 2 g/L, 3 g/L, and 4 g/L). Results showed that treatment combination of paclobutrazol 100 ppm and Gandasil 3 g/L gave the best results on the number of flowers per plant (822.0), number of fruits per plant (144.5), and fruit weight (156.77 g/plant). This combination may, however, result in low fruit yield and inhibit vegetative development, including leaf number and plant height. The fastest flowering age was obtained at combination paclobutrazol 125 ppm and Gandasil concentrations of 4 g/L with a value of 39.33 days.   Keywords: Concentration, Gandasil fertilizer, Growth, Paclobutrazol, Yield.
The Effect of Dosage and Application Interval of Tofu Waste Liquid Organic Fertilizer on the Growth and Yield of Tomato (Lycopersicum esculentum) Phebian Adam Pahlevy; Djarwatiningsih Djarwatiningsih; Felicitas Deru Dewanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 2 (2026): April 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i2.792-800

Abstract

Tofu liquid waste contains organic materials that can be utilized as liquid organic fertilizer (LOF). This study aims to determine the effect of dose and interval of LOF from tofu liquid waste on tomato plants (Lycopersicum esculentum. L). This study, conducted from April to July 2024 in Gajah Bendo Village, Pasuruan, examined the impact of tofu liquid waste-based Liquid Organic Fertilizer (LOF) on tomato plants (Lycopersicum esculentum. L). Utilizing a Completely Randomized Design (CRD) with two factors in triplicates, the researchers tested four dosage levels (0, 100, 200, and 300 ml/plant) and three application intervals (6, 10, and 14 days).  The results of the study found that the combination of LOF tofu liquid waste dosage at a dose of 300 mL/plant with an application interval of 14 days resulted in the fastest flowering age compared to other treatment combinations. However, the combination of dosage and application interval treatments did not significantly affect the parameters of plant height, number of fruits, and fruit sets. The LOF application even tended to reduce the harvest weight of tomato fruit compared to the control treatment. Future research can focus on the optimal fermentation time of liquid waste to prepare LOF and apply the LOF on tomato plants under more controlled conditions such as in a greenhouse.
Effect of Substrate Composition and Liquid Organic Fertilizer from Kepok Banana Peels on Growth and Yield of White Oyster Mushroom (Pleurotus ostreatus) Nita Nur Laila; Felicitas Deru Dewanti; Nova Triani
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 2 (2026): April 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i2.743-751

Abstract

This study aims to determine the impact liquid organic fertilizer (LOF) from kepok banana peels on the growth and yield of white oyster mushrooms under different substrates. The study was performed under factorial completely randomized design (4 x 4) with two factors. First factor was substrate (sawdust + rice husk) composition consisting of four levels with 25% to 100% sawdust. Second factor was concentration of LOF consisting of four levels (0; 100; 150; and 200 mL/L). Observation variables included early appearance of fruit bodies, number of caps, cap diameter, and fresh weight. The experimental data were analyzed using ANOVA followed by HSD test at α = 5%. Results showed that interaction of substrate composition and concentration of LOF significantly affected the early appearance of fruit bodies and number, diameter, and fresh weight of caps at harvest period 1 and 2. Substrate composition (50% sawdust + 50% rise husk) and concentration of LOF 200 mL/L resulted the highest fresh harvest weight with a total 249.70 g/baglog for thre harvest periods. The results of this study confirm that proper substrate composition and LOF concentration is required to achieve optimal growth and yield of white oyster mushroom.
The Effects of Various Planting Media and Organic Fertilizers on the Growth and Yield of Purslane (Portulaca Oleracea L.) F. Deru Dewanti; Sukendah Sukendah; Puji Lestari Tarigan; Ahmad Yunus
Jurnal Penelitian Pendidikan IPA Vol 9 No 6 (2023): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i6.3905

Abstract

Purslane has many benefits as food or raw material for medicine. It is rich in beneficial compounds, such as omega-3 and vitamins. However, it has not been cultivated yet. Organic input in cultivation is essential to ensure food safety for humans. Using organic inputs can avoid the yield from chemical and biological contaminants that can threaten health. Thus, the source of growing media and fertilizer must be considered. Because the use of synthetic chemicals has residues that are harmful to the environment and human health. This research sought to identify the best combination of growing media and organic fertilizer to increase purslane yield. The experiment was conducted with a randomized block design with 2 factors and 3 replications. Organic fertilizers (guano, cow urine, and rabbit urine) and planting media (soil, soil + husk charcoal, soil + compost, and soil + husk charcoal) were the treatments assessed. The observation variables were planting media analysis, the number of leaves and branches, growth diameter, and fresh weight. The results show that the planting medium and organic fertilizer did not significantly affect the measured growth parameters. The single variable of organic fertilizer made a difference in growth diameter and fresh weight. Rabbit urine produced in the highest growth diameter, and guano produced in the highest fresh weight The single variable of organic fertilizer made a difference in growth diameter and fresh weight. Rabbit urine produced in the highest growth diameter, and guano produced in the highest fresh weight The single variable of organic fertilizer made a difference in growth diameter and fresh weight. Rabbit urine produced in the highest growth diameter, and guano produced in the highest fresh weight
Growth Period of Porang (Amorphophallus onchophyllus P.) Through Tubber Cut and Inorganic Fertilizer Treatment F. Deru Dewanti; Ramdan Hidayat; Puji Lestari Tarigan
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.5122

Abstract

Porang (Amorphophallus onchophyllus) has many benefits for industry and health, because of the high content of glucomannan in its tubers. Porang needs to be developed, but the problem is getting a uniform source of tuber seeds. To get the uniform tuber seeds by dividing them. This study aims to get a uniform source of tuber seeds. This study was conducted in the field and laboratory. The experiment was arranged in a CRD. There are two factors, in seed tuber division: U1= Intact tuber, U2=Tuber cut in 2, U3=Tuber cut in 3 parts, and U4=Tubers cut into 4 parts. The second factor is fertilizer consisting of Urea, Za, and Phonska. The results of the combined treatment between tuber division and fertilizer treatment showed no significant interaction in all observed parameters. The seed tuber division treatment affects the bud break time, plant height, stem diameter, and canopy width, only at the beginning of growth. U1 gives the highest growth. The various fertilizer treatments only had a significant effect on plant height and stem diameter at 7 and 8 WAP. The treatment of splitting tuber seeds can replace intact tubers to be used as Porang tuber seeds
The Effect of Potassium Dosage and Branch-Pruning on the Growth and Yield of Butternut Squash (Cucurbita moschata Durch) F. Deru Dewanti; Nora Augustien; Nova Triani; Nurul Islam Fi Holki; Sukarjati
Jurnal Penelitian Pendidikan IPA Vol 10 No 9 (2024): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i9.7565

Abstract

Butternut squash (C. moschata) is a honey squash plant (Cucurbita moschata Durch) which is an introduced plant from the lowlands of South America and has adapted to Indonesia. The research was carried out in the planting area of Kampung Labu Madu, Toyoresmi Village, Ngasem District, Kediri Regency from January to June 2021. Potassium is among major nutrients needed by plants in their growth and development.  Potassium fertilization can help plants improve the regulation of photosynthetic mechanisms, carbohydrate translocation, protein synthesis This research was a two-factor factorial experiment prepared using a Split Plot Design. The first factor (main plot) was the branch pruning (P) treatment which consisted of 2 levels and the second factor (subplot) was the dose of KCl (K) fertilizer which consisted of 4 levels. The results of the research showed that there was a real influence in the treatment without pruning on the parameters of the number of male flowers and on the parameter of fruit weight with the best treatment being pruning, whereas for the treatment the dose of KCl fertilizer had a real effect on the parameters.
Optimization of Growth and Yield of Melon Plants (Cucumis melo L.) in Drip Irrigation Hydroponic System by Providing Various Planting Media and Doses of Magnesium Sulfate Fertilizer Firdi Ihza Rochman; Didik Utomo Pribadi; Felicitas Deru Dewanti
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 7 No. 3 (2025): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 7 No. 3 September 2025
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.4634

Abstract

Melon is a horticultural commodity with high sales value in both local and export markets. Consumer demand for sweet, fresh, and high-quality melons continues to rise. This rising demand for melons requires higher productivity. To achieve higher melon productivity, advanced agricultural cultivation technologies are required, including hydroponic melon cultivation. This study aims to determine the effects of planting media and magnesium sulfate fertilizer doses on the growth and yield of hydroponic melons using a drip irrigation system. The study was conducted at the Puspa Lebo greenhouse, Lebo Village, Sidoarjo District, Sidoarjo Regency, East Java, from September to November 2024. The research employed a Completely Randomized Design (CRD) with two treatment factors. The first factor was the type of planting media, consisting of three treatments: rice husk charcoal, cocopeat, and a 1:1 mixture of rice husk charcoal and cocopeat. The second factor was the magnesium sulfate fertilizer dose, with four treatments: 0 g/plant, 15 g/plant, 30 g/plant, and 45 g/plant. The results indicated that the rice husk charcoal planting medium treatment affected the fruit weight parameter. Meanwhile, the Magnesium fertilizer dose treatment of 15 g/plant affected plant length and leaf number. The use of rice husk charcoal as a planting medium increased melon fruit weight, and it is recommended that further research explore its advantages for use with other commodities.
Increasing the Growth and Yield of Okra (Abelmoschus esculentus) Plants with the Use of PGPR ( Plant Growth Promoting Rhizobacteria ) and Gibberellin Krisna Bayu Prasetiyo; Didik Utomo Pribadi; Felicitas Deru Dewanti; Sri Wiyatiningsih
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 1 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 1 January 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.4844

Abstract

Okra (Abelmoschus esculentus) is a horticultural crop rich in minerals, antioxidants, polyphenols, and flavonoids. One of the limiting factors for okra production is inadequate nutrition. The use of Plant Growth-Promoting Rhizobacteria (PGPR) and gibberellins is a promising approach to enhance okra production. This study aimed to determine the optimal concentrations of PGPR and gibberellin combinations for improving the growth and yield of okra. The experiment was conducted from March to June 2025 at the Experimental Field of the Faculty of Agriculture, Veteran National Development University, East Java. A factorial experiment was designed using a Randomized Block Design (RBD) with two factors: PGPR concentration at four levels (0 ml/l, 10 ml/l, 15 ml/l, and 20 ml/l) and gibberellin concentration at four levels (0 ppm, 100 ppm, 150 ppm, and 200 ppm), resulting in 16 treatment combinations, each replicated three times. The interaction between PGPR and gibberellin treatments significantly affected plant height and the number of flowers. The 20 ml/l PGPR treatment had the most significant positive effect on the number of leaves between 28 and 49 days after planting and on fruit weight during the 1st, 3rd, and 5th harvests. The 200 ppm gibberellin treatment significantly accelerated flower emergence, with an average of 35.39 days to flower emergence. The combination of 20 ml/l PGPR and 200 ppm gibberellin was the most effective treatment for enhancing okra plant growth and yield.
Co-Authors -, Moegijanto Agus Sulistyono Ahmad Yunus Ahmad Yunus Aisyah Shinta Nila Sari Akbar, Achmad K Faisal Alifia Azzahra Assa Najah Assadiyah Bambang Pujiasmanto Deajeng Putri Safira Nariswari Dhian Satria Yudha Kartika Didik Utomo Pribadi Djarwatiningsih Djarwatiningsih Djoko Purnomo Edi Purwanto Firdaus, Muhammad Bagus Firdi Ihza Rochman Guniarti Guniarti Guniarti Guniarti Guniarti Guniarti Hidayatullah, Muchammad Fajar Ida Retno Moeljani Indrajaya, Rohmad Kalimin, La Ode Radin Arsyahun Kasana, Adinda Fany Krisna Bayu Prasetiyo Liliek Liliek M. Djibran, Dayyan Hikmal M. Yuda Namuri Marwa, Sufi Maulana, Hendra Meida, Nur Lathifa Muhammad Muhammad Nita Nur Laila Nora Augustien Nova Triani Nova Triani Nurul Islam Fi Holki Pangesti Nugrahani Parwi Parwi Phebian Adam Pahlevy Pribadi, Didik Utomo Pribadi, Nathasya Yusvie Priyadarshini, Rossyda Puji Lestari Tarigan Putra, Chrystia Aji Ramdan Hidayat Ramdan Hidayat Ratna Yulistiani Rizki, Agung Mustika Rofik, Galih Ainur Santoso, Juli Sholeha, Nadiyatus Sri Wiyatiningsih Sugiarto Sugiarto, Sugiarto Sukarjati Sukendah Sukendah Sukendah Sukendah Sukendah Sukendah Sukendah Sukendah SUKENDAH SUKENDAH, SUKENDAH Sutini Wurjani, Widi Yonny Koentjoro Yonny Koetjoro Zulfikar Alvin Naufal Zulmi, Shinta Nuraini