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All Journal Jurnal Biologi Udayana Agrikultura AGRIVITA, Journal of Agricultural Science Jurnal Agroekoteknologi Jurnal Agro Padjadjaran Journal of Dentistry Kultivasi Jurnal Agrotek Tropika Jurnal Teknologi Pertanian Andalas AGROLOGIA : Jurnal Ilmu Budidaya Tanaman Soil REns Agro Bali: Agricultural Journal
Diyan Herdiyantoro
Fakultas Pertanian, Universitas Padjadjaran, Bandung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Dentistry Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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Dental alginate impression waste as additional fertiliser for plant yields and soil quality Frahdian, Tommy; Hasratiningsih, Zulia; Karlina, Elin; Herdiyantoro, Diyan; Takarini, Veni
Padjadjaran Journal of Dentistry Vol 30, No 1 (2018): March
Publisher : Faculty of Dentistry Universitas Padjadjaran, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (815.789 KB) | DOI: 10.24198/pjd.vol30no1.16231

Abstract

Introduction: Dental alginate impression material is the most common material used in dentistry. However, dental alginate waste (DAW) is one of the causes of the increasing number of dentistry and medicinal wastes. This research was aimed to discover the effect of dental alginate impression waste as additional fertiliser on the plant yields by determining the weight of cauliflower crop, and towards the quality of soil by determining the soil pH (Ultisol® Jatinangor). Methods: The experiment was using a randomised block design with 4 treatments and 7 times replications. The treatment consisted of A0 (0% DAW as control), A1 (0.01% DAW), A2 (0.1% DAW), and A3 (1% DAW). Results: The weight of cauliflower after addition of DAW in group A0 was 72.78; A1 was 139.82); A2 was 130.69; and A3 was 60.72). While the pH soil in group A0 was 5.92; A1 was 6.07; A2 was 6.02; and A3 was 6.26. The treatment in the A1 and A2 groups were found as the significant doses that able to increase the cauliflower weight for consecutively 1.92 times and 1.80 times compared to the control group, while on the soil quality improvement (soil pH), the addition of DAW was not significantly affected. Conclusion: It can be concluded that the addition of dental alginate waste at the dose of 0.01% and 0.1% increased the weight of cauliflower, but has no significant effect on the soil quality.
Pemilihan teknik aplikasi dan dosis pupuk hayati pelarut kalium untuk meningkatkan serapan kalium dan pertumbuhan tanaman jagung pada tanah Inceptisols Diyan Herdiyantoro; Tualar Simarmata; Mieke Rochimi Setiawati; Nenny Nurlaeny; Benny Joy; Mahfud Arifin; Jajang Sauman Hamdani; Iin Handayani
Kultivasi Vol 21, No 1 (2022): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v21i1.35781

Abstract

AbstrakSalah satu strategi yang diterapkan pada pupuk hayati untuk menunjukkan efek positif pada tanaman yang diinokulasi adalah pemilihan teknik aplikasi dan dosis yang tepat, baik pada tanah, benih, atau kombinasi keduanya. Tujuan dari percobaan ini adalah mendapatkan teknik aplikasi dan dosis pupuk hayati pelarut K yang memberikan hasil terbaik terhadap penyerapan K dan pertumbuhan tanaman jagung (Zea mays L.) pada Inceptisols Jatinangor. Percobaan dilaksanakan pada November 2018-Januari 2019 di rumah kaca Fakultas Pertanian Universitas Padjadjaran. Percobaan menggunakan rancangan acak kelompok dengan 9 perlakuan dan 3 kali ulangan. Perlakuan terdiri dari tanpa perlakuan (kontrol), aplikasi pada benih 400 g.ha-1 dan 800 g.ha-1, aplikasi pada tanah 2 kg.ha-1 dan 4 kg.ha-1, dan kombinasi antara kedua teknik aplikasi dan dosis tersebut. Hasil percobaan menunjukkan aplikasi pupuk hayati pelarut K dengan dosis 4 kg.ha-1 dapat meningkatkan populasi BPK total 52,86% dibandingkan kontrol dan berkorelasi positif terhadap konsentrasi K2O (r=0,64**), serapan K (r=0,59**), dan diameter batang tanaman jagung (r=0,46*) yang dibudidayakan di tanah Inceptisols Jatinangor.Kata Kunci: Aplikasi pada tanah ∙ Aplikasi pada benih ∙ Bakteri pelarut kalium ∙ Dosis ∙ Jagung AbstractOne of the strategies applied to biofertilizers to show a positive effect on the inoculated plants is the selection of the appropriate application technique and dose in soil, seeds, or a combination of both. The purpose of this experiment was to obtain the application technique and dose of potassium (K) solubilizing biofertilizer that gave the best results on K uptake and growth of maize (Zea mays L.) on Inceptisols of Jatinangor. The experiment was performed in November 2018-January 2019 in the greenhouse of the Faculty of Agriculture, Universitas Padjadjaran. The experiment used a single factor randomized block design with 9 treatments and 3 replications. The treatments consisted of control, seed treatment at doses of 400 g.ha-1 and 800 g.ha-1, soil treatment at doses of 2 kg.ha-1 and 4 kg.ha-1, and a combination of the two techniques application and doses. The results showed that the application of K solubilizing biofertilizer at a dose of 4 kg.ha-1 could increase the total PSB population by 52.86% compared to control and it was positively correlated with concentration of K2O (r=0.64**), K uptake (r=0.59**), and maize stem diameter (r=0.46*) grown on Inceptisols of Jatinangor.Keywords: Soil treatment ∙ Seed treatment ∙ Potassium solubilizing bacteria ∙ Dose ∙ Maize
Uji Formulasi Pupuk Hayati Padat Berbasis Azolla Terhadap Populasi dan Fungsional Mikroba Tanah Menguntungkan Mieke Rochimi Setiawati; Maya Damayanti; Diyan Herdiyantoro; Pujawati Suryatmana; Fiqriah Hanum Khumairah
Soilrens Vol 15, No 2 (2017)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (426.551 KB) | DOI: 10.24198/soilrens.v15i2.21461

Abstract

Inorganic fertilizer is a very important agricultural input to increase agricultural production. Uncalculated and continuous application of inorganic fertilizers will lead to the reduction of soil fertility and degradation of environmental quality. Therefore, a strategy is needed to support the environmental sustainability in agriculture. One of the efforts is through the production of biofertilizer and organic fertilizer from local resources. Organic fertilizer for rice plants can be made by utilizing the local water fern, Azolla pinnata. A. pinnata can be applied on rice fields as green manure by directly placing it into the soil or spread on the surface of rice fields. Organic fertilizer that made from Azolla will be more advantageous because it can be applied with biofertilizer. This study aimed to determine the formulation of Azolla based solid biofertilizer that can support the growth of functional microbial population based on the Agriculture Ministry (Permentan) standard number 70/2011. The design of the study method used was Completely Randomized Design with six replications. The treatments used were inoculant starter with 3% molasses, 3% molasses + 10% rice wash water, 3% molasses + 1% yeast extract, and 3% molasses + 10% rice wash water + 1% yeast extract. The results of this study showed that Azolla-based solids fertilizer with starter formula 3% inoculant molasses + 10% rice water + 1% yeast extract have the population of Azotobacter, Azospirillum, endophytic bacteria and phosphate solubilizing microbe were greater than 108 cfu/g dry weight. Functional microbial of solids fertilizers in all formulas used do not show the difference on inhabiting in the N-free media or Pikovskaya selective media.  Keywords: Azolla pinnata, formulation, biofertilizer, organic fertilize
Potensi Inokulan Petrofilik dan Kompos Kotoran Ayam dalam Bioremediasi Limbah Minyak Bumi Sistem Land Treatment Pujawati Suryatmana; Richard A. Gunawan; Diyan Herdiyantoro; Mieke Rochimi Setiawati
Soilrens Vol 17, No 1 (2019)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (517.253 KB) | DOI: 10.24198/soilrens.v17i1.23213

Abstract

Bioremediation of petroleum waste using the land treatment system is generally carried out by indigenous Petrophilic stimulation as a degrading agent. One of the efforts to improve the performance of the bioremediation system is by adding petrophilic inoculants and organic material as a source of nutrition. This experiment focused on observation of the effect of endogenous petrophilic consortium by adding chicken manure compost towards bioremediation performance parameters, including the efficiency of hydrocarbon degradation, soil pH and petrobacter population on Jatinangor Inceptisols contaminated with petroleum waste. The experiment Design used in this experiment was Factorial Randomized Block Design (FRBD). The first factor was the variation of the concentration  of the petrophilic consortium, consisted of: (i) without a petrophilic consortium, (ii) the concentration of petrophilic consortium 1% (w/ w), (iii) the concentration of petrophilic consortium 3% (w/ w ), (iv) concentration of petrophilic consortium 5% (w/ w). The second factor was the variation of the concentration of chicken manure compost: (ii) without compost chicken manure, (ii) the concentration of chicken manure compost 1.5% (w / w), and (iii) the concentration of chicken manure compost 3% (w/w). ). The results showed that the treatment of exogenous Petrophilic and chicken manure could not significantly improve the biodegradation efficiency of hydrocarbons, but the Petrophilic additives of 3% (w/ w) could increase the highest Petrophilic population. From this study was found that indigenous petrophilic had the potential to degrade hydrocarbons by 71.20%, while the application of exogenous 1% (w/w) petrophilic was able to degrade hydrocarbons by 71.97 %.
Peningkatan Produktivitas Padi Gogo (Oryza Sativa Linnaeus) Akibat Aplikasi Pupuk Urea Dan Bakteri Pemfiksasi Nitrogen Dalam Bahan Pembawa Pada Inceptisols Asal Jatinangor Fadhilla Oktavianingtyas Trisilvi; Nadia Nuraniya Kamaluddin; Betty Natalie Fitriatin; Diyan Herdiyantoro; Pujawati Suryatmana
Soilrens Vol 19, No 2 (2021)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v19i2.38360

Abstract

As a staple in Indonesian diet, rice demand increase along with the population growth. Therefore, in order to fulfill the continuous increase, researches were conducted to increase land productivity. The increase of growth and productivity of upland rice with the application of Azospirillum sp. and Azotobacter sp. in compost, Azolla, and rice bran carrier were studied. Nitrogen fixer were applied as a biofertiliser as a mean to supply available nitrogen for upland rice growth. This research was conducted in Ciparanje Experimental Field and Soil Biology Laboratory, Faculty of Agriculture, Universitas Padjadjaran. In this research, Randomized Block Design was used to analyze two factors: urea dose (100% and 50%) and Nfixer bacteria in various carriers (individual carrier and combination of liquid inoculant, green compost, Azolla compost, rice bran). The result showed an interaction between two factors towards the grain weight of upland rice. The application of 100% urea dose showed higher result compared to 50% urea dose on grain weight. N fixer bacteria combined with compost, Azolla, and rice bran carrier gave the highest result on the number of tillers, chlorophyll content, and grain weight.
Pemanfaatan Limbah Pertanian dalam Menurunkan Dosis Pupuk Anorganik, Meningkatkan Populasi Azospirillum sp. , Nitrogen tanah, Serapan Nitrogen, dan Hasil Jagung pada Inceptisols Jatinangor Mieke Rochimi Setiawati; Diyah Sri Utami; Reginawanti Hindersah; Diyan Herdiyantoro; Pujawati Suryatmana
Soilrens Vol 19, No 1 (2021)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v19i1.35084

Abstract

Balanced fertilizer is a solution to increase Inceptisols fertility and maize productivity. The aim of this study was to determine the effects and interactions between various fertilizers organic fom agriculture waste with inorganic fertilizers to increase the total population of Azospirillum sp., nitrogen uptake, soil nitrogen and the yield of maize (Zea mays) in Inceptisols Jatinangor. The research was conducted from July 2020 to January 2021 in the experimental screen house at Ciparanje, Agriculture Faculty, Universitas Padjadjaran, Jatinangor, Sumedang, West Java, 724 meters above the sea level. This research design used a randomized block design (RBD) factorial with 16 treatments and three replicates. The first factor was the type of organic fertilizer (O) of four levels: without organic fertilizer (control), 10 tons ha1 of rice straw compost, sugarcane bagasse compost, and oil palm empty fruit bunche compost. The second factor was the dosage of inorganic fertilizers (A) of four levels: without inorganic fertilizer (control), 50%, 75% and 100% dose recommendation inorganic fertilizer. The results showed that no interaction between organic fertilizers and inorganic fertilizers against all the parameters. The independent effect of organic fertilizers had a significant effect on the parameters of the total population of Azospirillum sp., nitrogen uptake and maize yields. The independent effect of inorganic fertilizers has a significant effect on nitrogen uptake and maize yields. Treatment of 10 ton ha-1 of oil palm empty bunche compost and inorganic fertilizer (50% recommendation dose) was the best treatment for dry shelled weight per maize plant on Inceptisols, equal to 88.52 g and 87.96 g each plants.
engaruh Dosis Pupuk NPK dan Ordo Tanah terhadap Kdd, Serapan K, dan Hasil Bibit Kentang (Solanum tuberosum L.) yang Diinokulasi Fungi Mikoriza Arbuskula dan Mycorrhiza Helper Bacteria Windy Amorita; Anne Nurbaity; Diyan Herdiyantoro
Soilrens Vol 14, No 2 (2016)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (504.962 KB) | DOI: 10.24198/soilrens.v14i2.11127

Abstract

The productivity of potatoes in Indonesia is relatively low and unstable caused by unsuitable enviromental and soil conditions and bad cultivation system. This research was conducted to study the effect of NPK fertilizer dosages and soil order to soluble K, K Uptake, and yield of seed potatoes (Solanum tuberosum L.). The experiment design used a factorial randomized block design with two factors and three replication. The first factor was NPK fertilizer dosages with five levels (0, 25, 50, 75, 100% recomendation dosages) and the second factor was soil orders with two levels (Andisols and Inceptisols). The results of experiment showed that the interaction effect between NPK fertilizer dosages and soil orders had significantly effect to soluble K and K Uptake. There were independent effect of NPK dosages to diameter of potatoes tuber and independent effect of soils order to yield of seed potatoes. Andisols with 25% NPK and Inceptisols with 50% NPK were the best combination treatment to increase soluble K while treatment Inceptisols with 25% NPK was the best combination treatment to increase K Uptake. Dosages of 25% NPK was the best treatment to increase diameter of potatoes tuber while Inceptisols was the best treatment to increase yield of seed potatoes.Keywords : NPK Fertilizer Dosages, Andisols, Inceptisols, Potassium, Potatoes
Analisis C, N, C/N Ratio Tanah dan Hasil Padi yang Diberi Pupuk Organik dan Pupuk Hayati Berbasis Azolla Pada Lahan Sawah Organik Mieke Rochimi Setiawati; Diyan Herdiyantoro; Maya Damayani; Pujawati Suryatmana
Soilrens Vol 16, No 2 (2018)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (505.531 KB) | DOI: 10.24198/soilrens.v16i2.20857

Abstract

ABSTRACT Organic farming, especially organic rice requires a continuing supply of organic fertilizer in large quantity as a source of nutrition for rice plants. In long-run, organic system is can retain higher soil organic carbon (SOC), partially compensates the negative impact by improving physical and biological properties, as well as nutrient retention capacity of the soil. Azolla pinnata is an organic nitrogen source rich in protein. The high nitrogen content in A. pinnata is related to the presence of nitrogen-fixing Anabaena azollae microsimbion in A. pinnata leaves. A. pinnata compost is an alternative for biofertilizer carrier that can be used in organic rice fields. The contribution of azolla-based organic farming for organic farmers is to decrease the dependency on the animal manure in cropping season. The field experiment comprised of conventional compost as control and combination of organic fertilizer and biofertilizer with Azolla carrier. Organic fertilizer were 5 ton/hectare (ton/ha), 7.5 ton/ha, and 10 ton/ha combined with 0, 10, 20 kg/ha biofertilizer with Azolla carrier with no addition of inorganic fertilizer. Complete randomized design were used in the experiment which consisted of three replications. This technology produced organic fertilizer better than conventional compost of rice straw and manure made by farmers. Organic fertilizer base with Azolla mixture of 7.5 ton ha-1 plus solid biofertilizer (10 kg/ha) can produce 6.58 ton/ha of dry harvested grain, higher than conventional compost treatment (control). The application of organic fertilizer base on azolla and solid biofertilizers gave the increasing yield prospect of organic rice in Cisayong, Tasikmalaya regency West Java.Keywords : Azolla pinata, carbon, nitrogen, organic farming, rice.
Kemampuan Kompos Plus dalam Menekan Penyakit layu Fusarium (Fusarium oxysporum f.sp. lycopersici) pada Tanaman Tomat Noor Istifadah; Toto Sunarto; Dian E. Kkartiwa; Diyan Herdiyantoro
Agrikultura Vol 19, No 1 (2008): April, 2008
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1422.139 KB) | DOI: 10.24198/agrikultura.v19i1.639

Abstract

Penyakit layu fusarium merupakan salah satu kendala dalam budidaya tanaman tomat. Salah satu cara pengendalian penyakit ramah lingkungan yang banyak dikembangkan adalah pengendalian secara biologi (biokontrol). Artikel ini membahas penelitian yang menguji waktu aplikasi dan dosis kompos plus (formulasi campuran jamur antagonis Trychoderma sp., paecilomyces fumosoroseus, dan jamur endofit Papulaspora sp. dalam kompos) yang efektif menekan penyakit layu fusarium pada tanaman tomat. Hasil penelitian menunjukkan bahwa kompos plus yang diaplikasikan pada medium persemaian (1:2, v/v) dan pindah tanam sebanyak 30 g atau 40 g per lubang tanam atau diaplikasikan pada saat pindah tanam saja sebanyak 40 g per lubang tanam, dapat menekan gejala internal penyakit layu fusarium sebesar 77,3 — 87,9%.
PEMANFAATAN BAHAN ORGANIK SEBAGAI BAHAN PEMBAWA INOKULAN FUNGI MIKORIZA ARBUSKULA ANNE NURBAITY; DIYAN HERDIYANTORO; OVIYANTI MULYANI
Jurnal Biologi Udayana Vol 13 No 1 (2009): JURNAL BIOLOGI
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (344.487 KB)

Abstract

Arbuscular Mycorrhizal Fungi (AMF) is known as one type of biofertilizer. The carrier for this biofertilizer is usually made from inorganic material such as zeolite. Currently, it is important to find the alternative materials that can be used as biofertilizers’ carrier due to the need of lower cost and easily available, such organic matter. Rice straw and husk are some of the organic matter sources that can be used as a carrier of AMF. A glass house experiment was conducted to determine the effectiveness of different type of organic matter as a carrier of AMF’s inoculum. The experiment was arranged in factorial randomized block design with two factors, i.e. type of organic matter (zeolite as a control, straw, burnt-rice’s husk and combination of straw and rice husk 50/50 v/v) and type of different hosts of AMF’s (Jatropha sp. and Sorghum sp.). The results showed that application of burnt-rice’s husk was better carrier of AMF inoculum instead of straw or combination of straw and burnt-rice’s husk. The quality of AMF inoculum with burnt-rice’s husk as a carrier was as good as the control inoculum that used zeolite, in terms of the number of spores, the percentage of root colonization, root length colonized and root fresh weight. In summary, burnt-rice’s husk has a good potential carrier of AMF biofertilizer.
Co-Authors Ade Setiawan Agung Muhammad Yusuf Akustu, Masako Alia Halimatusy Anas Ramdhani Anne Nurbaity Apong Sandrawati Benny Joy Benny Joy Betty Natalie Fitriatin Dewikusuma Ikhsani Dewikusuma Ikhsani Adhiningtyas Dian E. Kkartiwa Diyah Sri Utami Elin Karlina Emma Trinurani Sofyan Evi Entang Fatimah Fadhilla Oktavianingtyas Trisilvi Frahdian, Tommy Frahdian, Tommy Gea Anggun Pratiwi Halimah, Ummu ‘Azizah Iin Handayani Irwandhi, Irwandhi Isna Niar Rahmatul Azizah Isnaniar Rahmatul Azizah Jajang Sauman Hamdani Khumairah, Fiqriah Hanum Lubis, Ary Satria Mahfud Arifin Maya Damayani Maya Damayanti Mieke Rochimi Setiawati Nadia Nuraniya Kamaluddin Nenny Nurlaeny Noor Istifadah Oviyanti Mulyani Pirda Nurhopipah Pudjawati Suryatmana Pujawati Suryatmana Rahma Tia Harahap Rahma Tia Harahap Reginawanti Hindersah Richard A. Gunawan Rija Sudirja Suryatma, Pujawati Syifa Nabila Kurnia Toto Sunarto Tualar Simarmata Uum Umiyati Veni Takarini Windy Amorita Zahra Ilmiyati Zulia Hasratiningsih, Zulia