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All Journal Jurnal Penelitian Saintek Agrikultura Jurnal Natur Indonesia Jurnal Fakultas Pertanian Jurnal Ilmu-Ilmu Pertanian Indonesia Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Jurnal Agroekoteknologi Jurnal Agro Jurnal Penelitian Pertanian Terapan Kultivasi SAINS TANAH - Journal of Soil Science and Agroclimatology Daun: Jurnal Ilmiah Pertanian dan Kehutanan Paspalum: Jurnal Ilmiah Pertanian Jurnal Agrotek Indonesia AGROLOGIA : Jurnal Ilmu Budidaya Tanaman Soil REns OrchidAgro International Journal of Agriculture System Journal of Character and Environment Composite Jurnal Ekonomi Pertanian dan Agribisnis Agrikultura Masyarakat Tani: Jurnal Pengabdian kepada masyarakat AGROLOGIA: Jurnal Budidaya Tanaman
Betty Natalie Fitriatin
Fakultas Pertanian, Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Public Health Social Sciences Veterinary Other

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Path analysis of phosphorus dynamics and chili response to low rank coal-derived humic acid in P-deficient Inceptisols Hermawan, Mega Kartika; Sofyan, Emma Trinurani; Sudirja, Rija; Nurbaity, Anne; Fitriatin, Betty Natalie; Mulyani, Oviyanti; Setiawati, Mieke Rochimi; Djuansah, Muhamad Rahman
Journal of Degraded and Mining Lands Management Vol. 13 No. 2 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.132.9893

Abstract

Jatinangor Inceptisols are formed from volcanic material with a high concentration of iron oxide and a low concentration of phosphorus (P), which leads to high rates of P fixation and low P fertilization efficiency. The situation is exacerbated by intensive agricultural practices. This research was conducted to assess the effect of humic acid derived from low rank coal (AHL) as a soil conditioner in enhancing P availability and chili response in P-deficient Inceptisols. The experiment was conducted in the greenhouse of the Soil Chemistry and Plant Nutrition Laboratory at Universitas Padjadjaran. AHL treatments were combined with various doses of SP-36 fertilizer to evaluate their direct and indirect effects on soil chemical properties, phosphate-solubilizing bacteria (PSB) populations, P uptake, and plant responses. The results showed that AHL application did not cause metal toxicity symptoms and significantly increased potential P, available P, cation exchange capacity (CEC), and total PSB populations. The best results were obtained with a combination of AHL at 30 kg ha?¹ and SP-36 at 125 kg ha?¹, which optimally enhanced P dynamics and chili yields. AHL was proven to reduce the need for inorganic P fertilizer by up to 50% without compromising chili yield or quality. These findings indicate that AHL has great potential to be developed as a locally sourced soil conditioner to support sustainable agriculture and the use of more environmentally friendly low-rank coal.
Effectiveness of Bacillus-Based Biofertilizer on Growth and Biomass of Corn in Low-Phosphorus Soil under Pot Experiment Reginawanti Hindersah; Betty Natalie Fitriatin; Aliya Zahrah Adawiah; Testarosa Testarosa; Yeni Wispa Dewi
AGROLOGIA: Jurnal Ilmu Budidaya Tanaman Vol 15 No 1 (2026): Agrologia : Jurnal Ilmu Budidaya Tanaman
Publisher : Fakultas Pertanian, Universitas Pattimura Ambon, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/agrologia.v15i1.22951

Abstract

Biofertilizers provide plants with essential nutrients through nitrogen fixation and phosphate solubilization. A pot experiment was conducted to examine the effects of different types of biofertilizers on plant growth, biomass, and rhizosphere microbial populations in corn grown in soil with low available phosphorus. The greenhouse experiment was designed using a completely randomized block design to test three biofertilizer types and two control treatments. The tested biofertilizers included a solid inoculant of phosphate-solubilizing bacteria, a liquid inoculant of a mixture of nitrogen-fixing bacteria and phosphate-solubilizing bacteria, and a Bacillus-based liquid biofertilizer. The results showed that soil inoculation with biofertilizer in soil enriched with organic matter did not alter leaf number or shoot height in 4-week-old corn; however, it increased both parameters compared to corn grown in soil without cow manure. Despite reduced root growth after biofertilizer inoculation, the corn dry weight was significantly higher following Bacillus-based biofertilizer application than with other biofertilizers. The experiment found that Bacillus was more effective for increasing corn biomass during vegetative growth in soil enriched with organic matter. The results indicate that the effectiveness of heterotrophic biofertilizer microbes is determined by soil organic matter.
The effect of beneficial microorganism as biofertilizer application in hydroponic-grown tomato Setiawati, Mieke Rochimi; Afrilandha, Nandha; Hindersah, Reginawanti; Suryatmana, Pujawati; Fitriatin, Betty Natalie; Kamaluddin, Nadia Nuraniya
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 20, No 1 (2023): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v20i1.63877

Abstract

The use of N2-fixing bacteria and growth hormone-producing rhizobacteria delivers nitrogen, enhances nutrients absorption by plants, and reduces the usage of inorganic fertilizers. Implementing biofertilizer in the hydroponic system as a means to reduce application of synthetic nutrient is recently in interest due to economic, food safety, and sustainability factors. This study determines the effects of biofertilizer dose on tomato yields in the hydroponics system. A randomized block design was utilized that consisted of seven treatments, namely 100% inorganic fertilizer and 0% biofertilizer (control), and various doses of inorganic nutrient combined with 25%, 50%, 75%, and 100% biofertilizer. The result illustrated that the application of biofertilizer augmented the population of endophytic bacteria, Azotobacter sp., Azospirillum sp., phosphate solubilizing bacteria, and nitrogen content. The distinct combination of biofertilizer did not alter the phosphorus and potassium content compared to control samples however resulted in superior tomato grade. The 50% inorganic fertilizer and 100% biofertilizer combination amplified the weight of the fruit by 36% compared to the control. This finding indicates that the application of biofertilizers in the hydroponic system for tomato plants is not only beneficial in minimizing the dosage of inorganic fertilizers but also enhancing the fruit quality.
Response of Maize Plant Growth Due to Application of Liquid and Solid (Microbeads) Diazotroph Endophytic Bacteria Biofertilizer (Respon Pertumbuhan Tanaman Jagung Akibat Aplikasi Pupuk Hayati Cair dan Padat (Microbeads) Bakteri Endofitik Diazotrof) Regina Teuresna Dewi; Mieke Rochimi Setiawati; M. Julio Ferdiansyah; Eki Riftahur Rizki; Nadia Nuraniya Kamaluddin; Pujawati Suryatmana; Anne Nurbaiti; Reginawanti Hindersah; Betty Natalie Fitriatin; Rangga Jiwa Wibawa
Jurnal Agroekoteknologi Vol 18, No 1 (2026)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotetek.v18i1.40482

Abstract

This study aimed to evaluate the effect of diazotrophic endophytic bacteria inoculation in liquid and microbeads formulations on the vegetative growth of maize (Zea mays L.). The experiment was conducted from September 2025 to March 2026 at the Soil Biology Laboratory and Ciparanje Experimental Field, Faculty of Agriculture, Universitas Padjadjaran. The study used a Randomized Block Design consisting of seven treatments and four replications. Treatments included liquid and microbeads biofertilizers containing Gluconacetobacter diazotrophicus strain GD 3-1, Paraburkholderia sp. strain GD 12-2, and their consortium. Observed parameters included plant height, stem diameter, leaf area, intensity of plant pest disturbance, and stem endophytic bacterial population. Data were analyzed using analysis of variance (ANOVA) followed by the Scott-Knott test at a 5% significance level using Statistical Package for the Social Sciences (SPSS) 21. The results showed that biofertilizer application significantly affected maize growth at the late vegetative stage. Liquid formulation of G. diazotrophicus produced the highest plant height at 8 weeks after planting, while microbeads formulation showed more stable growth responses during the observation period. Biofertilizer treatments also increased leaf area and stem endophytic bacterial population compared with the control treatment. In addition, inoculated plants showed better tolerance to pest attacks during the vegetative stage. Overall, the application of diazotrophic endophytic bacteria, particularly G. diazotrophicus, demonstrated potential to improve maize vegetative growth and support sustainable agricultural practices.
The Effect of Alginate Concentration and 8 kHz Audiosonic Treatment on the Viability of Arbuscular Mycorrhizal Fungi in Biochar Pellets Salsabila Salsabila; Anne Nurbaity; Vira Kusuma Dewi; Betty Natalie Fitriatin; Pujawati Suryatmana; Mieke Rochimi Setiawati
Daun: Jurnal Ilmiah Pertanian dan Kehutanan Vol. 13 No. 1 (2026): Daun: Jurnal Ilmiah Pertanian dan Kehutanan
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/daun.v13i1.13366

Abstract

The effectiveness of arbuscular mycorrhizal fungi (AMF) as a biofertilizer in enhancing plant growth is influenced by environmental factors that can inhibit germination and reduce spore viability. Encapsulation using alginate as a coating material, combined with audiosonic stimulation, may improve spore protection and physiological activity. This study was conducted from October 2025 to February 2026 at the Soil Biology Laboratory, Department of Soil Science and Land Resources, Faculty of Agriculture, Universitas Padjadjaran, to evaluate the interaction between alginate concentration and audiosonic treatment on AMF spore germination and viability. The experiment was conducted using a Completely Randomized Design (CRD) with six treatments and three replicates. Alginate concentrations consisted of 1%, 2%, and 3%, while the audiosonic treatments included no audiosonic exposure and exposure to 8 kHz at a duration of 8 hours per day. The results showed a significant interaction between alginate concentration and audiosonic treatment on AMF viability. The 2% alginate concentration resulted in the greatest spore viability. Keywords: Audiosonic, Alginate encapsulated, Arbuscula Mycorrhizal Fungi (AMF), Biochar pellets
The effectiveness of Bacillus-coated NPK fertilizer on broccoli growth, nutrient status, rhizosphere Bacillus population, yield, and flower quality Fitriatin, Betty Natalie; Risanti, Rara Rahmatika; Hindersah, Reginawanti; Hanindipto, Fasa Aditya; Nugraha, Gita Bina
Kultivasi Vol 25, No 2 (2026)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v25i2.71019

Abstract

Efforts to increase the availability of macronutrients in soil have relied on inorganic fertilization, particularly NPK fertilizers. However, global challenges in the fertilizer raw material supply chain, including price fluctuations and availability, are driving the need for more efficient and sustainable fertilizer alternatives.  The  field experiment was conducted in Baruajak, Lembang District, West Java, Indonesia, to evaluate the effectiveness of Bacillus-coated NPK fertilizer on broccoli (Brassica oleracea var. italica) growth, nutrient status, rhizosphere Bacillus population, yield, and flower quality. The experiment used a randomized complete block design with 15 fertilizer treatments and three replications. Treatments consisted of two coated NPK formulations, Formula C (0.4% Bacillus consortium + 0.2% zeolite) and Formula G (0.2% Bacillus consortium + 0.4% zeolite), applied once or twice at 100%, 75%, and 50% of the recommended NPK dose, and conventional NPK fertilizer at the same dose levels. The recommended NPK dose for broccoli was 300 kg ha⁻¹. Plant growth, chlorophyll content, shoot biomass, nutrient concentration and uptake, soil nutrient status, rhizosphere Bacillus population, flower yield, flower diameter, and vitamin B3 and K contents were observed. The results showed that Bacillus-coated NPK fertilizer generally improved vegetative growth compared with conventional NPK fertilizer. Formula G applied once at 100% recommended NPK dosage produced the highest flower weight and diameter, while Formula C applied once at 75% resulted in the highest vitamin B3 and vitamin K contents. The coated NPK fertilizer maintained shoot N, P, and K concentrations comparable to those of conventional NPK and showed potential to partially or fully replace conventional NPK in broccoli cultivation.
Effects of AB Mix hydroponic solution and ameliorant mixtures on cayenne pepper growth and yield in an Inceptisols Turmuktini, Tien; Fitriatin, Betty Natalie; Simarmata, Tualar; Widayanti, Firda; Nuryanti, Nuryanti; Amalia, Lia; Ria, Elly Roosma; Parlinah, Linlin
Kultivasi Vol 25, No 2 (2026)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v25i2.71679

Abstract

Cayenne pepper (Capsicum frustescens L.) cultivation faces several problems, including acidic pH and inadequate nutrient management. These problems can be addressed by using a mixture of various ameliorants and AB mix nutrient solutions. This study aimed to determine the effect of ameliorant mixture dosage and AB mix solution concentration on soil chemical properties, growth, and yield of cayenne pepper. The experiment used a randomized block design, consisting of two factors: nutrient solution concentration and ameliorant dosage. The factor of nutrient solution concentration consisted of four levels, i.e., 700, 1000, 1300, and 1600 ppm, while the factor of ameliorant dosage also consisted of four levels, i.e., 0, 2, 4, and 6 t ha-1. Observations were made on soil chemical properties, namely soil pH, organic carbon content, and cation exchange capacity (CEC). The agronomic characteristics observed were plant height, number of leaves, leaf area, chlorophyll content index, fruit length, number of fruits, and fruit weight per plant. The results showed no interaction between the concentration of AB mix solution and the ameliorant dosage on soil chemical properties, growth, and yield characteristics of cayenne pepper plants. The single effect of AB mix solution or ameliorant was observed on the number and weight of fruits per plant. The optimal dose for achieving the maximum harvested fruit weight was 6 t ha-1 of the ameliorant mixture (76.55 g pepper/plant), while the optimal AB mix concentration was 1600 ppm (65.02 g pepper/plant).
Pengaruh Pemupukan Bakteri Pelarut Fosfat Dan Dosis Batuan Fosfat Terhadap Ketersediaan Fosfor Pada Tanah Budidaya Tanaman Jagung (Zea Mays L.) Di Ultisol Kentrong Dewi Nurma Yanti Ningtyas; Betty Natalie Fitriatin; Mieke Rochimi Setiawati; Tualar Simarmata
Jurnal Ekonomi Pertanian dan Agribisnis Vol. 2 No. 1 (2024): Juli - Desember
Publisher : CV.ITTC INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62379/jepag.v2i1.1941

Abstract

The use of Ultisols for plant cultivation has constraints, namely the nature of the soil is acidic and the availability of phosphate for plants is low. The use of Rocks Phosphate (RP) and Phosphate Solubilizing Bacteria (PSB) can be used as an alternative to increasing the availability of phosphate for environmentally friendly plants. PSB has the potential to increase the solubility and availability of phosphate in plants. The increase in the availability of phosphate for plants can be through the enzyme phosphatase and organic acids produced by PSB. This study aims to examine the effect of the type of PSB consortium and the dose of Rocks Phosphate on P uptake and growth of maize in Ultisols from Kentrong. The research was conducted at the Ciparanje Experimental Garden, Faculty of Agriculture, Padjadjaran University, Jatinangor. The design used was a randomized block design with factorial pattern consisting of phosphate solubilizing bacteria (without the PSB consortium, exogenous PSB consortium, indigenous PSB consortium, and mixed consortium) and Rocks Phosphate dosage (100% SP-36, 100% RP, 80% RP, 60% RP) with three replications. The results showed no interaction between the type of PSB consortium and the dose of Rocks Phosphate. The results of the independent effect showed that the treatment of using SP-36 was the best treatment in available P.
Co-Authors Ade Setiawan Adinda Putri Amanda Aditya, Fasa Aditya, Fasa Aditya, Fasa Afrilandha, Nandha Agus Wahyudin Alifa Salsabila Anindya Aliya Zahrah Adawiah Alyani Shabrina Anas Ramdhani Andi Hana Mufidah Elmirasari Andina Chotimah Andriana Kartikawati Anggi Jingga Anggi Jingga Anne Nurbaiti Anne Nurbaity Anni Yuniarti Anny Yuniarti Antonio Yusuf Ariani, Nabila Syifa Aristyo Rahardiyan Asmiran, Priyanka Azhari, Yolanda Dewi Azwari, Fachruddin Budiman, Muhammad Nafariz Chotimah, Andina Damayani, Maya Dedi Nursyamsi Dedi Nursyamsi Dedi Nursyamsi Dedi Ruswandi Dedy Nursyamsi Dewi Nurma Yanti Ningtyas Dewi, Yeni Wispa Dirga Sapta Sara Dita, Limbong Agatha Dita Diyan Herdiyantoro Diyan Hermiyantoro Djuansah, Muhamad Rahman Dupa, Putri Siska Ekayanti Dwi Suci Rahayu Dzakaria Yogaswara Dzakaria Yogaswara Eki Riftahur Rizki Emma Trinurani Sofyan Endo, Kenji Fadhilla Oktavianingtyas Trisilvi Fakhrurroja, Hanif Fasa Aditya Fauziah, Nicky Oktav Feni Siti Fauziah2 Fidya A Puspafirdausi Fiky Yulianto Wicaksono Fiqriah Hanum Khumairah Fiqriah Hanum Khumairah Fitri Widiantini Ghifari, Raden Faqih Hilmiy Hanindipto, Fasa Aditya Haryo Probo Kusumo Hermawan, Mega Kartika Iis Nur Asyiah Khumairah, Fiqriah Hanum Leoni Silvia LIA AMALIA M. Julio Ferdiansyah Maharani, Nadhira Saniya Mahdi Argawan Putra Manurung, Dahlia Florencia Marenda Ishak Sonjaya Sule Maulana, Nurzen Mayang Agustina Meddy Rachmady Mieke Rochimi Setiawati Mieke Rochimi Setiawati Mohamad Dion Tiara Muhamad Aristiyo Muhamad Aristiyo, Muhamad Muhamad Iqbal Kusma Sudana Muhammad Agi Pratama Muhammad Amir Solihin Muhammad Iqbal Maulana Yusuf Mulya, Agus Surya Mulyadi Mulyadi Muthia Erwina Nabila Nabila Syifa Ariani Nadia Nuraniya Kamaluddin Nakayama, Masakazu Nono Carsono Nugraha, Gita Bina Nugraha, Gita Bina Nugraha, Gita Bina Nurfitriana, Nofalia Nurul Hakim, Anisa Nuryanti Nuryanti Oktaviani, Meira Oviyanti Mulyani Parlinah, Linlin Pirda Nurhopipah Priyanka Asmiran Pudjawati Suryatmana Pujawati Suryatmana Pujawati Suryatmana Puspafirdausi, Fidya A. Putri, Envry Artanti Duidahayu Rachelita, Nadia Randy Nugraha Rangga Jiwa Wibawa Rangga Jiwa Wibawa Regina Teuresna Dewi Reginawanti Hindersah Ria, Elly Roosma Rija Sudirja Risanti, Rara Rahmatika Risanti, Rara Rahmatika Rita Harni Robi Natalie Silpanus Ruminta Ruminta Salsabila Salsabila Septyani Sofatin Setiawati, Mieke Richimi Shafwah Zylvi Azkiannissa Simanjuntak, Edo Kelvin Syifa Nabila Kurnia Testarosa Testarosa Tien Turmuktini Toto Bustomi Triani Dewi Triyani Dewi Tualar Simarmata Tualar Simarmata Vira Kusuma Dewi Wahyuda Rachman, Wahyuda Wahyudin, Agus Wawan Rachman Widayanti, Firda Wong, Mui-Yun Yeni Wispa Dewi Yenny Muliani yeti kartika Yuhanidz Yuhanidz Yuliati Machfud