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All Journal Journal of Tropical Soils Jurnal Ilmu-Ilmu Pertanian Indonesia Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Indonesian Aquaculture Journal Martabe : Jurnal Pengabdian Kepada Masyarakat
Eko Hanudin
Departemen IImu Tanah, Fakultas Pertanian, Universitas Gadjah Mada, Jalan Flora No 1, Bulaksumur, Yogyakarta
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Education Environmental Science Social Sciences

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Leaching Characteristics of Udipsamment Ameliored by Mineral Soil and Adhesive Polymer Fibrianty Fibrianty; Eko Hanudin; Azwar Ma’as
JOURNAL OF TROPICAL SOILS Vol 27, No 1: January 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i1.17-25

Abstract

Udipsamment  is  characterized  by  sand  fraction  > 95%,  loose,  and  very  high  leaching. This  study  aimed  to determine  the  effect  of  mineral  soil  ameliorants  and  adhesive  polymers  on  the character  of  nutrient leaching  in  Udipsamment.  The  leaching   study  in  lysimeters  used  a completely  randomized  design  with three  replications.  The  treatments  consist  of  bagasse  (B),  mineral  soil included  Inceptisol  (I)  and Vertisol  (V),  and adhesive  polymers included tapioca  1% and 2% (T1  and  T2),  tapioca  dregs  1%  and  2  %  (A1 and  A2),  Polyvinylalcohol  0.1%  and  0.2%  (P1  and  P2).  Combination  of  treatments  are  IB,  VB,  IBT1, IBT2,  VBT1,  VBT2,  IBA1,  IBA2, VBA1 ,  VBA2 , IBP1,  I BP2, VBP1,  and  VBP2.  Observations  were made  before  and  after  leaching.  The  research  showed  that  VBT2  increases moisture-holding  capacity. Amelioration improved the ability of  Udipsamment  to  hold  nutrients,  after leaching  for  six  months,  there was  a  decrease  in  organic  C,  total  N,  and  available  P  compared to before  leaching.  Amelioration increased the  soil  CEC,  even up  to  the  sixth  month  leaching,  the soil  CEC  showed  a  higher value  than  before  leaching.  The  amount  of  clay  fraction  was  relatively  uniform  between  the  surface  and  the  bottom of  the lysimeter,  indicating that   the adhesive   polymer  successfully  bonding  the  clay-sand  particles  and prevented clay leaching.
Phosphate Adsorption Capacity of Allophane from Two Volcanic Mountains in Indonesia Tandaditya Ariefandra Airlangga; Naoto Matsue; Eko Hanudin; Erni Johan
JOURNAL OF TROPICAL SOILS Vol 25, No 1: January 2020
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2020.v25i1.39-46

Abstract

Allophane is known as clay mineral with high capacity of phosphate adsorption via ligand-exchange mechanism. This study aims to compare the phosphate adsorption characteristics by allophane from Mt. Merapi and Mt. Lawu in relation to its chemical and mineralogical properties. The results  of X-Ray Flourescence analysis shows that both allophane samples from Merapi and Lawu have low Si/Al ratio, i.e. 1.18 and 1.16, respectively. Infrared spectral characteristics of the allophane materials indicated that the main adsorption bands appeared at the range of 2700-3700 cm-1 (due to stretching vibration of all hydroxyl (OH) groups), 1400 – 1800 cm-1 (vibration of HOH deformation), and 650 - 1200 cm-1 (vibration between the Si-O-Al). Adsorption experiment of phosphate on allophane samples were conducted at initial adsorbate concentration of up to 2.0 mM and at pH 4.0 and 8.0. Phosphate adsorption capacity of allophane shows that both allophane from Merapi and Lawu are categorized as very high in adsorbing phosphate and fit well with the Langmuir adsorption equation. Phosphate adsorption increases with decreasing pH due to the positive charge sites such as Al-OH2+ in the allophane structure increase. Another reason is the negative charge of phosphate gradually decreases from -2 to -1 with decreasing pH, and the repulsive force between the negatively charged Si-O- in the allophane structure and phosphate anions decreases.
MANIPULATION OF INCEPTISOLS POND BOTTOM SOIL THROUGH ADDITION OF ULTISOLS AND VERTISOLS FOR REARING OF RED TILAPIA (Oreochromis sp.) LARVAE Saberina Hasibuan; Bambang Djadmo Kertonegoro; Kamiso Handoyo Nitimulyo; Eko Hanudin
Indonesian Aquaculture Journal Vol 6, No 1 (2011): (June 2011)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.508 KB) | DOI: 10.15578/iaj.6.1.2011.59-70

Abstract

The pond bottom soil of Inceptisols mixed with Ultisols (I-U) and Vertisols (I-G) with the proportion of (70:30); (50:50); (30:70) showed the improvement of clay fractions >30% compared with the control (100% Inceptisols). These mixtures were given basal fertilizer (quail droppings manure with dosage of 2 tons/ha/month), Urea, and SP36. Cultivation system was divided into two stocked: fish ponds with 50 fish/m2 and ponds without fish. The best mix with the basal fertilizer was further treated with fertilization treatment (1 ton/ha/month of quail droppings manure) 3 times within 42 days of larval rearing. Physical and chemical soil analyses showed an increase of total soil porosity (> 50%), decrease of SG, BD, and permeability (medium), pH > 5, the CEC > 20 cmol (+) kg-1, and the C/N ratio < 6.5. The proportion of the best mix of 30% I : 70% U and 50% I : 50% G with 3 times of the fertilization frequency gave significant improvement of water quality, chlorophyll-a, diversity of plankton, benthic algae, fish growth, and total biomass. The presence of mineral montmorillonite on a mixture of 50% I : 50% G was a very good sign of the bottom soil fertility.
Seleksi Isolat Bakteri Pelarut Fosfat (BPF) untuk Mengembangkan Inokulum Efektif Tamad Tamad; Bostang Radjagukguk; Eko Hanudin; Jaka Widada
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 28, No 2 (2011)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2011.28.2.265

Abstract

The phosphate solubilizing bacteria (PSB) can release insoluble phosphate in soil by anorganik-P dissolution, organic-P mineralization, and blocking of soil adsorption site.  The selection of effective PSB, therefore,  is urgently required to study the effectiveness of PSB.  The research was arranged to determine: 1) P-solubi-lization or P-mineralization, 2)  physiology, and 3) PSB inoculant improvement.  The research was arranged in complete random design, with PSB isolate as treatment.  The variables  were: soluble-P, mineralize-P, adsorption-P, pH, PSB population, phosphatase and phythase activity. The  result showed that PSB isolate 1 = Pseudomonas trivialis, 5 = Pseudomonas putida, and 9 = Pseudomonas fluorescens, were the best in P solubilization or P mineralization.  Solubilization efficiency of isolate were 1 = 291%, 5 = 280%, and 9 = 347%.  Five days incubation (the end of log phase or early of stationary phase) was the best time to culture harvest for PSB inoculant formulate.  Within twelve months age of culture, population stability of PSB inoculant decreased between 81 and 88%,  and P solubilizing stability PSB inoculant decrease between 65 and 81%. Decreasing of P solubility to P source types of PSB inoculant was AlP > FeP > PR > CaP.
PENGELOLAAN PETERNAKAN TERPADU PADA KELOMPOK PETERNAK KAMBING MUALAF DI KALIBAWANG KULONPROGO Lis Noer Aini; Meika Kurnia Puji Dyah Anggraini; Eko Hanudin
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 6, No 1 (2023): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v6i1.28-35

Abstract

Kalibawang is one of the hilly areas in Kulonprogo Regency. Most of the people in this area are Muslim, although the number of followers of other religions is also growing. Part of the people in Kalibawang are converts, are a lower until middle class society. The existing economic limitations have made some of the converts formed a group of goat breeders with capital from donors. This goat breeder group has been running for about 1 year and has 6 members, with the number of goats increasing. The problem is the limited knowledge of the members of the farmer group for integrated goat farming system. The solutions offered are 1) providing  training on the manufacture of organic fertilizer from existing goat farm waste; 2) integrated goat farming practices. The results of the assistance carried out, before the training was carried out, all converts did not know how to make organic fertilizer and cultivate goats correctly. After the counseling and mentoring was carried out, farmers began to understand the integrated goat farming technique, and began to put it into practice, both in waste management and in the design of healthier cattle pens.
KADAR HARA DALAM JARINGAN TANAMAN SEBAGAI RESPON BUDIDAYA MONOKULTUR DAN HUBUNGANNYA DENGAN HASIL PADA TANAMAN TEBU Anna Kusumawati; Eko Hanudin; Benito Heru Purwanto; Makruf Nurudin
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 24 No 1 (2022)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.24.1.39-48

Abstract

[RESPONSE OF THE NUTRITION LEVELS OF SUGARCANE IN THREE ORDERS OF SOIL DUE TO SUGARCANE MONOCULTURE CULTIVATION]. Monoculture cultivation will have an influence not only on soil conditions but also on plant growth, nutrient levels in plant tissues, and yields. The purpose of this study was (1)  to determine the effect of monoculture sugarcane cultivation on nutrient levels of the roots, stalks, and leaves of sugarcane plants, (2) to determine the relationship between nutrient levels in sugarcane tissue and sugarcane productivity, and yield in three different soil orders. This research had two factors, namely soil order (Entisol, Inceptisol, and Vertisol) and sugarcane monoculture period (1–10, 11–20, and 21–30 years). The sugar cane used was the ratoon of two sugarcane. Parameters observed included nutrient levels of N, P, K, B, and Zn in roots, stalks, and leaves of sugarcane, and productivity of plants. Data analysis was performed with ANOVA at 5% level and regression correlation analysis. The results showed that the levels of N (leaves, stalks, and roots), levels of P (leaves, stalks, and roots), levels of leaf K, levels of B (leaves and roots), and level of Zn of sugarcane roots were influenced by the interaction between soil order and sugarcane monoculture period. Zn and K levels in sugarcane leaves had a strong and significant correlation with sugarcane productivity (r=0.778* and r=0.699*), while sugarcane yields had a strong and significant correlation with N content of root (r=0.752*). This result indicates that the soil order and the mass of sugarcane monoculture have an effect on the nutrient content in the plant and this nutrient content affects the productivity and yield. The availability of macro and micronutrients needs to be considered in monoculture sugarcane planting techniques to obtain optimal and sustainable sugarcane yields.
Co-Authors Anna Kusumawati Azwar Ma’as Bambang Djadmo Kertonegoro Bambang Hendro Sunarminto Benito Heru Purwanto Bostang Radjagukguk Dewi Ratna Nurhayati Erni Johan Fibrianty Fibrianty Jaka Widada Jaka Widada Kamiso Handoyo Nitimulyo Kartika Utami Lis Noer Aini, Lis Noer Makruf Nurudin Makruf Nurudin Meika Kurnia Puji Dyah Anggraini Mujiyo Mujiyo Naoto Matsue Prapto Yudono Saberina Hasibuan Tamad Tamad Tandaditya Ariefandra Airlangga Taryono, Taryono