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Journal of Applied Plant Technology
Published by Universitas Wijaya Kusuma Surabaya
ISSN : -     EISSN : 29645662     DOI : https://doi.org/10.30742/japt.v1i1
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Journal of Applied Plant Technology (JAPT) is published by the Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University . Journal of Applied Plant Technology (JAPT) is managed professionally as a forum to assist academics, researchers, and practitioners to disseminate the results of research and studies that have been carried out. Journal of Applied Plant Technology (JAPT) is a national journal dedicated to the publication of quality research results in the fields of cultivation and agricultural technology, as well as free of charge in the submission process. Journal of Plant Technology is published twice a year, in November and May. Focus and Scope of Journal of Applied Plant Technology (JAPT): - Agricultural cultivation - Pests and plant diseases - Tissue culture - Soil science - Agricultural Technology - Agricultural Landscape - Urban Farming
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 64 Documents
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Substitution Effect Nutrient Hydroponic with POC Against Plant Growth mustard (Brassica rapa L.) in Hydroponics Wick System in Green House Ndau, Wensislaus Arman; Sa'adah, Tatuk Tojibatus; Indarwati, Indarwati; Setiawati, Anindya Prastiwi; Bafiqi, Medina Johana Pakula
Journal of Applied Plant Technology Vol 4 No 2 (2025): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/6yge0906

Abstract

Hydroponics wick system is a hydroponic system by utilizing the wick to absorb water and nutrients by utilizing capillarity power. This axis serves to connect the nutrient solution in the tub with planting medium. This study aims to : (1) determine the effect of the mix AB nutrient on plant growth in hydroponic lettuce; (2) determine the effect of Liquid Organic Fertilizer on plant growth in hydroponic lettuce; (3) the effect of substitution of hydroponic nutrient with a liquid organic fertilizer on plant growth in hydroponic lettuce. This study uses a completely randomized design with 5 treatments and repeated 4 times, resulting in 20 experimental units. The results showed : (1) administration of 5 ml/l A and 5 ml/l B gives the best results in growth of mustard plants; (2) provision of 3 ml/l A and 3 ml/l B + 100 ml/l POC also gave a good response to the growth of mustard plants; (3) administration of 2ml/l A and 2 ml/l B + 150 ml/l POC also gave a good response to the growth of mustard.
The Effect of Adding Liquid Organic Amino Acid Fertilizer on the Growth and Yield of Pakcoy (Brassica rapa L.) Plants Solikhah, Afidatus; Purnamasari, Retno Tri; Sulistyawati, Sulistyawati
Journal of Applied Plant Technology Vol 4 No 2 (2025): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/cmz38t55

Abstract

Modern agriculture not only emphasizes increased production, but also environmental sustainability. One effort to support sustainable agriculture is the use of organic fertilizers, including the innovation of amino acid-based liquid organic fertilizers (POC) as an alternative or complement to chemical fertilizers. The research was conducted in the Babatan Hamlet area, Bakalan Village, Bugul Kidul District, Pasuruan City. The research used a non-factorial Randomized Block Design consisting of five treatments and five replications. The treatments were P0: 100% urea fertilizer (control); P1: amino acid concentration 5 ml l-1 + 75% urea; P2: amino acid concentration 10 ml l-1  + 75% urea; P3: amino acid concentration 15 ml l-1  + 75% urea; P4: amino acid concentration 20 ml l-1  + 75% urea. The parameters observed were plant height, number of leaves, leaf area, dry weight of upper plant, dry weight of lower plant, total dry weight of plant, leaf area index (ILD), net assimilation rate (NAR), relative growth rate (RGR), and plant weight-1. Based on the results of the study, it can be concluded that the concentration of amino acids 15 ml l⁻¹ + 75% urea proved to be more effective in increasing the yield and growth of bok choy with a weight of 126.23 g plant-1.
Liquid Organic Fertilizer Application Test on the Early Growth of Ginger Plants (Zingiber officinale) Herawati, Jajuk; Sa'adah, Tatuk Tojibatus; Dhinata, Yhogga Pratama; Widya, Surya Ari
Journal of Applied Plant Technology Vol 4 No 2 (2025): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/yqz3g292

Abstract

The research consists of two stages, the first being the development of LOF production from water hyacinth and banana peel applied to ginger plants. The purpose of the study is to determine the extent to which the application of liquid organic fertilizer (LOF) can enhance the early growth of ginger plants. The second is the cultivation of ginger plants by applying various types of LOF compared to ginger plants without LOF application. The research was conducted from the end of August to November 2025 in Banjar Poh Village, Sidoarjo District, Sidoarjo Regency.  Research hypothesis: (1) It is suspected that different LOF applications will result in different early growth in ginger plants, (2) it is suspected that the use of banana peel LOF provides better early growth in ginger plants compared to other treatments. The study used a Randomized Block Design (RBD) method with one factor consisting of 4 treatments. The treatment involved the provision of types of LOF, namely P1 = without LOF; P2 = LOF water hyacinth; and P3 = LOF banana peel P4 = EM4 (Effective Microorganisms 4). Each treatment was repeated 3 times, and each repetition had 3 plant samples. Observations of the early growth of ginger plants include shoot height, number of shoots, and number of leaves. The obtained data were analyzed using analysis of variance, and if there were significant differences, it was followed by the Least Significant Difference (LSD) test at 5%.
The Effect of Different Types of Fertilizers on The Growth and Yield of Large Chili Plants (Capsicum annuum L.) Aprilia, Bunga; Indarwati, Indarwati; Herawati, Jajuk
Journal of Applied Plant Technology Vol 4 No 2 (2025): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/bkremn68

Abstract

This study is meant to check out how giving different types of organic fertilizer, like Nutrizim granules, Nutrizim crumb, and liquid rabbit urine, affects the growth and yield of large chili peppers (Capsicum annuum L.). The research method used a Randomized Block Design (RBD) with five treatments and four replicates. The study was conducted from late May to early October 2024 in an open field at Pondok Pesantren Bhakti Bapak Emak, Jombang. The results showed that (a) the application of Nutrizim Granule and Crumb fertilizers significantly affected the growth of large chili plants (plant height, number of leaves, number of branches, and stem diameter). However, it did not significantly affect the yield of large chili plants (Total Fruits, Fruit Length, Fruit Diameter, Fruit Weight, Fruit Weight Per Plant, and Fruit Volume). (b) The application of Nutrizim Granular and Crumb Fertilizer combined with liquid rabbit urine organic fertilizer significantly affected the growth of large chili plants (Plant Height, Number Of Leaves, Number Of Branches, And Stem Diameter). However, it did not significantly affect the yield of large chili plants (Total Fruits Per Plant, Fruit Length, Fruit Diameter, Fruit Weight, Fruit Weight Per Plant, And Fruit Volume). Even though, large chili plants treated with the experimental treatments were able to produce a total of 8.46 fruits per plant, fruit length of 7.79 cm per fruit, fruit diameter of 1.05 cm per fruit, fruit weight of 6.00 g per fruit, fruit weight per plant of 47.39 g, and fruit volume of 6.55 ml per fruit.
Study on the Use of Synthetic Organic Fertilizer Formulations on the Growth and Yield of Upland Water Spinach (Ipomoea reptans) Nabila, Ria; Indarwati, Indarwati; Sa'adah, Tatuk Tojibatus
Journal of Applied Plant Technology Vol 4 No 2 (2025): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/krrem865

Abstract

This study aimed to evaluate the effect of various types of synthetic organic fertilizers on the growth and yield of upland water spinach (Ipomoea reptans). The research was conducted in open field conditions using a Randomized Complete Block Design (RCBD) with three treatments: P1: control (urea); P2: Nutrizim granular organic fertilizer; P3: Nutrizim crumb organic fertilizer, each replicated three times. (a) The use of synthetic organic fertilizers had a significant effect on growth parameters, including number of leaves, plant height, and fresh weight of upland water spinach. (b) The plants treated with Nutrizim granular fertilizer produced a fresh weight yield of 36.15 tons/ha, which was not significantly different from the control treatment (47.61 tons/ha), with a yield difference of 11.46 tons between the Nutrizim granular fertilizer and the control. Thus, the use of Nutrizim granular organic fertilizer can support the growth and yield of upland water spinach.
Empowering Gen Z In Millennial Agricultural Development Haryanta, Dwi; Maryoni, Hamdi Sari; Rozci, Fatchur
Journal of Applied Plant Technology Vol 4 No 2 (2025): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/3f6kpw37

Abstract

A significant problem is the lack of interest among Indonesian youth in pursuing careers in agriculture, which has profound implications for the nation's food security and economic stability. This research aims to identify agricultural development strategies that appeal to millennials and Generation Z to ensure food self-sufficiency, achieve a sustainable agricultural system, and reduce unemployment. Data sources for the research included academic journals, books, research reports, and articles published in scientific databases such as Google Scholar, Scopus, IEEE Xplore, and ScienceDirect. Inclusion and exclusion criteria were applied to ensure that only relevant and high-quality literature was included in the analysis. Agricultural development strategies to attract millennials or Generation Z include technology-based agricultural development, particularly digital technology, entrepreneurship-based agricultural development, sustainable agricultural systems, community-based and collaborative agriculture, and market-oriented agricultural product development. The implications of the research findings for education and policymakers are to avoid introducing millennials or Generation Z to conventional agriculture, which has been viewed negatively and unattractively, and to instead introduce them to a millennial-centered agriculture (oriented towards Generation Z's agricultural needs)
Utilization of Corn Husk and Corn Cob Waste (Zea mays L.) on the Productivity of White Oyster Mushrooms (Pleurotus ostreatus) with Rice Washing Water Nutrients: Pemanfaatan Limbah Klobot dan Tongkol Jagung (Zea mays L.) terhadap Produktivitas Jamur Tiram Putih (Pleurotus ostreatus) dengan Nutrisi Air Cucian Beras Siti Ainuna Rohma; Dwi Haryanta; Marmi
Journal of Applied Plant Technology Vol 5 No 1 (2026): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/vr8yq855

Abstract

The cultivation of white oyster mushrooms (Pleurotus ostreatus) requires a growing medium that contains nutrients to support their growth and productivity. The use of agricultural waste in the form of corn cobs and husks with the addition of rice water nutrients has the potential to be an environmentally friendly and economically valuable alternative growing medium. This study aims to determine the effect and effectiveness of using corn cobs and corn cobs with rice washing water nutrients as a growing medium on the growth and productivity of white oyster mushrooms. This study used a quantitative method with an experimental research design through a completely randomized design (CRD) consisting of 6 treatments and 5 replicates. Data analysis used a one-way ANOVA test, followed by a Least Significant Difference (LSD) test at a 5% level. The results showed that the use of corn cob and cob planting media with rice washing water nutrients had a significant effect on white oyster mushroom cultivation. The 100% corn cob treatment (K2) was effective for mycelium growth and cap width, while the 100% corn husk treatment (K1) was effective in increasing the number of fruit bodies and stem length. The combination of 50% corn husk and 50% corn cob (K5) was the most effective treatment, producing the highest productivity based on fresh harvest weight.
Growth Response of Green Mustard (Brassica juncea L.) to Application of Kasgot Fertilizer in River Sediment Soil Media: Respon Pertumbuhan Sawi Hijau (Brassica juncea L.) terhadap Aplikasi Pupuk Kasgot pada Media Tanah Endapan Sungai Prestiani; Dwi Haryanta; Dina Chamidah
Journal of Applied Plant Technology Vol 5 No 1 (2026): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/zzs3qx41

Abstract

This study aimed to analyze the effect of different doses of kasgot fertilizer on the growth of green mustard (Brassica juncea L.) cultivated in river sediment soil using a Completely Randomized Design (CRD) with six fertilizer dose levels (0–50%) and five replications. The observed parameters included plant height, stem diameter, number of leaves, leaf area, and fresh weight. The results showed that kasgot fertilizer had a significant effect on several growth parameters, particularly plant height at 10–15 days after planting (DAP), stem diameter at 15–30 DAP, number of leaves at 20–30 DAP, and leaf area at 5–20 DAP, with the K3 treatment (30% kasgot + 70% river sediment soil) producing the best vegetative growth response. However, kasgot application did not significantly affect fresh weight at harvest, indicating that the sufficient nutrient availability in river sediment soil limited the plant response to additional fertilizer. Overall, although the K3 dose effectively enhanced vegetative growth, statistically the application of kasgot fertilizer did not have a significant effect on the final biomass of green mustard plants.  
Testing the Effectiveness of Soursop Leaf Infusion (Annona Muricata) as a Natural Larvicide against Aedes Aegypti Mosquito Larvae: Uji Efektivitas Infusa Daun Sirsak (Annona Muricata) sebagai Larvasida Alami terhadap Jentik Nyamuk Aedes Aegypti Selly Tria Amanda; Marmi; Sunaryo
Journal of Applied Plant Technology Vol 5 No 1 (2026): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/rvgevd86

Abstract

Aedes aegypti mosquitoes are the primary vectors responsible for dengue hemorrhagic fever (DHF), which remains a significant public health problem. The continuous use of chemical larvicides has the potential to cause resistance and negative environmental impacts; therefore, alternative natural larvicides are needed. One plant with potential as a natural larvicide is soursop leaves (Annona muricata). This study aimed to determine the effectiveness of different temperatures in the preparation of soursop leaf infusion (Annona muricata) on the mortality of Aedes aegypti larvae. The research method employed was an experimental design with soursop leaf infusion treatments at temperatures of 60°C, 70°C, and 80°C, with distilled water used as the control. The results showed that the 60°C treatment produced the highest average larval mortality of 10.33 larvae, followed by 5.33 larvae at 80°C and 3 larvae at 70°C, while no larval mortality was observed in the control group. Based on these findings, soursop leaf infusion prepared at 60°C was the most effective treatment in increasing the mortality of Aedes aegypti larvae and has the potential to be developed as an environmentally friendly natural larvicide.
Analysis of Pesticide Residues of Chlorpyrifos and Mancozeb in Green Beans (Phaseolus vulgaris) in Traditional and Modern Markets in Surabaya City: Analisa Residu Pestisida Klorpirifos dan Mankozeb pada Buncis (Phaseolus vulgaris) di Pasar Tradisional dan Modern Kota Surabaya Sergio Helios; Dwi Haryanta; Achmadi Susilo
Journal of Applied Plant Technology Vol 5 No 1 (2026): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/j0wv2m02

Abstract

This study aimed to analyze and compare the levels of pesticide residues of chlorpyrifos and mancozeb in green beans (Phaseolus vulgaris) marketed in traditional and modern markets in Surabaya City. The research employed a quantitative survey method with a comparative approach. Green bean samples were collected from several traditional and modern markets and analyzed in the laboratory using Gas Chromatography–Mass Spectrometry (GC-MS). The results showed that chlorpyrifos and mancozeb residues were detected in all samples from both market types. However, the measured residue levels were still below the established Maximum Residue Limits (MRLs). Generally, pesticide residue levels in green beans from traditional markets tend to be higher than those from modern markets. These differences were presumably related to variations in distribution systems, postharvest handling, and quality standards applied in each market. The findings indicate that green beans marketed in Surabaya generally meet food safety standards, although continuous monitoring of pesticide residues in fresh vegetables remains necessary

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