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All Journal Microbiology Indonesia Sains Tanah AGRIVITA, Journal of Agricultural Science MALIH PEDDAS SEIKO : Journal of Management & Business Jurnal Pendidikan Islam AL-ILMI PRIMA: Journal of Community Empowering and Services Genta Mulia : Jurnal Ilmiah Pendidikan INSANIA : Jurnal Pemikiran Alternatif Kependidikan
Sudadi Sudadi
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Medicine & Pharmacology Social Sciences

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Biosulfo Fertilizer Development for Horticulture Crops II. The Effect of Phosphate Rock Content and Inoculum Ratio of Biosulfo on P and S Uptake and Yield of Red Onion in Acid and Alkaline Soils Sudadi, Sudadi; Sumarno, Sumarno; Widada, Jaka
AGRIVITA, Journal of Agricultural Science Vol 33, No 3 (2011)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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Abstract

Research aimed to study the influence of phosphate rock-sulfur (PRS) content and inoculum ratios of biosulfo on P and S uptake and red onion yield on acid (Alfisol) and alkaline (Vertisol) soils.  Two factors evaluated were PRS content (0%, 60%, 80%) and inoculums of A.niger/P.nalgiovensis ratio of biosulfo (0:0, 1:1 and 3:1). As much of 12 kg of soil (Ø 2 mm) mixed thoroughly with biosulfo, basic fertilizer and manure, put into polybag then watering at field capacity moisture content. One bulb of red onion was planted to each polybag and incubated in the green house. The experiments arranged in completely randomized design with three replications. Variables observed included P and S uptake, and onion yield. Data analyzed with F test at 5% level of significant followed with DMRT if any significant influences. The result shows that the increases of PRS content as well as A. niger ratio of biosulfo tend to increase P and S uptake, especially on acid Alfisol.   Highest P and S uptake and onion yield were achieved with treatment combinations of P80I11, P80I31, and P60 I11 for Alfisol,   and  P80 I11,  P60 I11 and P60 I11  for Vertisol respectively.   Keywords:  phosphate, rock content, inoculums ratio,P and S uptake, onion yield
KAJIAN TERHADAP KEMAMPUAN ASAM ORGANIK DAN ANORGANIK DALAM MELARUTKAN FOSFAT DARI BATUAN FOSFAT ALAM Sudadi Sudadi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 5, No 1 (2008)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v5i1.84

Abstract

Study of Organic and Inorganic Acid Capabilities in Solubilize Phosphatic Rock‐P. Phosphatic rock has been used as phosphate fertilizer for along time and now being an alternative of P fertilizer. But its low solubility making them uneffective source of P for plant. Many attempt to increases their solubility has been done i.e. by acidulated it with organic and inorganic acid. Inorganic acid solubilize mineral P by acidification while organic acid by acidification and maybe chelating mechanism. The aim of this research is to study the effectivity of the two kind of acid, organic (citric acid) and inorganic acid (sulphuric acid) in solubilizing phosphatic rock‐P. Research has conducted in May – Oct 2007 at Soil Biology Laboratory, Gadjah Mada University, Yogyakarta. The experiment arranged in Completely Randomized Design with three level of sulphuric acid concentration (0.00 M, 0.02 M and 0.04 M), three level of citric acid concentration (0.00 M, 0.02 M and 0.04M) and three kind of phosphatic rock (Christmas Island, Ciamis and Madura) origin. Each of combination treatment replicated three times. A gram of each phosphatic rock was added to 50 ml of aquades in 150 ml erlenmeyer flask and shoke continuously at 200 rpm in reciprocal shaker. Water soluble‐P and pH were analysed at 0, 3, 6 and 9 day after incubation time. All data was analysed for anova at 95% level of significance and continued with DMRT if any significance differences. Research show that inorganic acid (sulphuric acid) solubilize phosphatic rock‐P stronger than organic acid, except for high content Al phosphatic rock, where the two kind of acid have equal P‐solubilizing capacity. Maybe, the high P‐solubilizing capacity of organic acid for high Al‐phosphatic rock caused by its ability in chelating Al. Keywords: Fosfat, batuan fosfat alam, asam sitrat, asam sulfat
INOKULASI JAMUR PENGOKSIDASI BELERANG PADA PUPUK FOSFAT ALAM UNTUK MENINGKATKAN FOSFAT DAN SULFAT TERSEDIA BAGI TANAMAN Sumarno Sumarno; Hery Widijanto; Sudadi Sudadi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 5, No 2 (2008)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v5i2.72

Abstract

Title : The Inoculation of Sulfur Oxidizing Fungi on Phosphate Rocks Fertilizer  to Increase Their Available Phosphate and Sulfate. Phosphate rocks as an alternative sources of P fertilizer are cheaper than SP-36. The main problem was their low of total and available P that must be increased to make them more effective source of P for plants. Inoculate them with S oxidizing fungi will increase their available-P. The research aim was to study the potency of two S oxidizing fungi Aspergillus japonicus and Penicillium nalgiovensis to increase available-P of phosphate rocks. Experimental research done at the Lab. of Soil Biology and Lab. of Soil Chemistry and Fertility, Department of Soil Science, Faculty of Agriculture, UNS, Surakarta, at March – Mei 2008. The experiment arranged in completely randomized design with four factors i.e. the origin of elemental sulphur (from G. Welirang, East Java and from USA), the origin of phosphate rocks (Christmas Island, Ciamis and Madura), kind of inoculums fungi (A. japonicus and P. nalgiovensis) and inoculums densities (0; 106 and 107 spore/g of phosphate rock). Each treatment combinations were replicated three times. Fifty grams mixture of phosphate rocks, cassava solid waste, tapioca and rice bran was poured in 250 ml Erlenmeyer, sterilized with autoclave at 121 oC for 30 minutes, three times alternately in 5 days, then inoculated with fungus spores and incubated at field capacity in room temperature for 3 months. Samples were taken at 1, 2 and 3 months after incubation time for analysis of water soluble-P, soluble sulphate, pH and total fungus. Data analyzed statistically with F test and Duncan Multiple Range Test at 5% of level significance. The result show that the two of S oxidizing fungi Aspergillus japonicus and Penicillium nalgiovensis were be able to increases available-P of phosphate rocks, as well as soluble sulphate more than 200 % of control treatment. Penicillium nalgiovensis was more effective than Aspergillus japonicus. As P sources, phosphate rock from Christmas Island was better than from Ciamis and Madura, while elemental S imported from USA was better than local So from G. Welirang. The increase of inoculums densities and length of incubation times increase soluble P and sulphate. Keyword: phosphate rocks, S oxidizing fungi, soluble P and sulphate
PENGARUH PUPUK ALAMI BERMIKROBA (BIO-NATURAL FERTILIZER) TERHADAP SERAPAN FOSFOR DAN PERTUMBUHAN KACANG TANAH PADA TANAH ALFISOL, ENTISOL, DAN VERTISOL Yasinta Choirina; Sudadi Sudadi; Hery Widijanto
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 10, No 2 (2013)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v10i2.193

Abstract

Title : Effect of Bio-Natural Fertilizer on Phosphorus Uptake and Growth of Peanut in Alfisols, Entisols, and Vertisols. Development of bio-natural fertilizer was needed to overcome the scarcity of fertilizer in Indonesia, the deficiency of soil nutrient, and low efficiency of fertilizer use. The research purposed to study the effect of bio-natural fertilizer formula and find out of best formula on P uptake and growth of peanuts in various soils ordo. The experiment used a completely randomized design with three factors. The first factor was bio-natural fertilizer P1 (vermicompost 100% without enrichment material, without microbial inoculums), P2 (vermicompost 66,67%, enrichment material 33,33% and microbial inoculum of NPKS with proportion of 2:2:1:1), and P3 (vermicompost 33,33%, enrichment material 66,67% and microbial inoculum of NPKS with proportion of 2:2:1:1). The second factor was peanut varieties, Elephant and Rabbit varieties. The third factor was soil ordo, Alfisols, Entisols, and Vertisols. The variables observed were av-P, P uptake, shoot dry weight, soil pH, population of P-solubilizing fungi, plant height, and shoot fresh weight. Data was analyzed by F test at 95% level confidence. The results showed that formula of bio-natural fertilizer influence significantly on P uptake and growth of peanuts in various soils. The formula of bio-natural fertilizer P2 is the best formula to increased P uptake of peanut on Alfisols, Entisol, and Vertisol, as well as for highest peanut growth on Alfisols.
Pengaruh Sifat Ketidakbalikon Tanah Gambyang Dihadapkan Pada Tingkat Lengas dan Lama Inkubasi Tertentu Terhadap Beberapa Sifat Kimianya Sudadi Sudadi; Parwati Parwati
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 4, No 1 (2004)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v4i1.118

Abstract

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PENGARUH DOSIS KOMPOS AZOLLA DAN KALIUM ORGANIK TERHADAP KETERSEDIAAN KALIUM DAN HASIL KACANG TANAH PADA ALFISOL Lutfy Ismoyo; Sumarno Sumarno; Sudadi Sudadi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 10, No 2 (2013)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v10i2.194

Abstract

Title : The Effect of Azolla Compost and Organic Pottasium Fertilizer Dosages on Pottasium Availability and Yield of Peanut on Alfisol. Production of groundnut can not meet the national demand right now. One of the reason is the degradation in soil fertility, such as potassium deficiency and low of soil organic matter content. Plants that has potassium-deficiency can not utilize water and nutrients from the soil efficiently. In organic farming system, soil exchangeable-potassium and organic matter content can be increase by the application of plant ash as organic potassium and azolla compost. The research conducted to determine the proper dose of azolla compost and organic potassium to increase exchangeable-potassium and yield of groundnut on Alfisol soil at Jumantono, Karanganyar District, Central Java, Indonesia. The experiment was arranged in Completely Randomized Design (CRD) with single treatment factor of azolla compost and organic pottasium combination (P1, P2, P3, P4, P5, P6, P7, P8) as well as manure and NPK fertilizer treatments. The Variables using in this experiment are K exchanged, CEC, Organic Matter, Total N, pH, plant height, fresh weight and dry stover, fresh weight, dry and number of pods, weight and number of seeds. Data were analyzed by F test and DMRT at 5% level. The land use media as much as 5 kg per polybag with 3 number plants per poybag, and in the second week we used to thinning the plants. Everyday we also doing watering and weeding. The observation were made every week until phase of generatif The results showed the application of azolla compost and organic potassium can increase exchangeable-potassium and yield of groundnut in Alfisol soil. The highest exchangeable-pottasium (0.53me%) taken from the treatment of P7. Moreover the application of azolla compost and organic potassium increased CEC, soil organic matter content, total-N soil as well as shoot fresh and dry weight of peanut.
EFEKTIVITAS BAKTERI PELARUT FOSFAT PADA BEBERAPA MACAM BAHAN PEMBAWA INOKULUM Supriyadi Supriyadi; Sudadi Sudadi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 1, No 1 (2001)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v1i1.90

Abstract

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Rhizobacteria as Biocontrol Agents of Root Rot Disease on Shallot Nunik Iriyanti Ramadhan; Hadiwiyono Hadiwiyono; Sudadi Sudadi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 12, No 1 (2015)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v12i1.217

Abstract

Shallot is a high-economic value commodit, but so far the supply is still lower than the demand. One of the production problem is “moler” disease of shallot (MDS) caused by Fusarium oxysporum f.sp. cepae (FOCe). The aim of this research was to study the potentiality of shallot rhizobacteria (SRB) from various soil ordo to inhibit (MDS). This research was held in the Laboratory of Biology and Soil Health and Greenhouse at UNS. This research was carried out by exploring rhizobacteria of shallot planted on Entisols, Andisols, and Vertisols. Rhizobacteria exploration results were tested for their ability to control Fusarium oxysporum f.sp.cepae (FOCe). Inhibitory ability test of SRB to FOCe was carried out in vitro and on shallot in the greenhouse. The research cused a Completely Randomized Design (CDR) with two factors. The first factor was rhizobacteria combination and the second factor was various soil ordo (Andisols, Entisols, and Vertisols). Each treatment was repeated three times. It was obtained three rhizobacteria isolates from Vertisols (B15: 70%), Andisols (B12:45,55%), and Entisols (B10:46,67%) being the highest inhibition results to FOCe. The combination of rhizobacteria B12 and B10 provided the lowest intensity.
PENGARUH SAAT PEMUPUKAN UREA PADA SISTEM GANDA AZOLLA‐PADI SAWAH TERHADAP N‐KAPITAL TANAH DAN HASIL PADI DI ENTISOL Sudadi Sudadi; Sumarno Sumarno
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 8, No 2 (2011)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v8i2.4

Abstract

Title : Fertilizing Time Effect of Urea in Dual System Azolla‐Rice Paddy to Soil Capital Nitrogen and Rice Yield on Entisol. The purposed of research was to study the effect of urea use in dual system azolla‐rice paddy to soil capital nitrogen  and rice yield on Entisol. Research  was conducted  on rice paddy field at Colomadu,  Karanganyar  district, Central Java. The experiment  arranged in single factor randomized completely block design (RCBD), with eight treatments says D1  (azolla + 100 kg urea /ha at 0 day after planting‐dap), D2 (azolla + 100 kg urea /ha at 30 dap), D3 (azolla + 100 kg urea /ha at 60 dap), D4 (azolla + 50 kg urea /ha at 0 and 30 dap), D5 (azolla + 50 kg urea /ha at 30 and 60 dap), D6  (azolla + 50 kg urea /ha at 0 and 60 dap), D7  (control treatment ‐ without azolla nor NPK fertilizer), and D8  (lokal farmer treatment ‐ 250 kg urea /ha split three times, 50 kg/ha at 0 dap, 100 kg/ha at 30 dap and 100 kg/ha at 60 dap). Azolla inoculums spreaded 7 dap at rates 500 g/m2. Variables observed were soil capital nitrogen, soil total‐N, tissue total‐N, soil organic matter content and rice yield. Data taken was analyzed  with anova and followed with Duncan Multiple Range Test (DMRT) at 5 %  level of significant. The results show that the use of urea in dual  system  azolla‐rice  paddy  increase  soil  capital  nitrogen,  soil  total‐N,  tissue  total‐N,  soil organic matter content and rice yield at Entisol. The highest soil capital nitrogen (0,953 kg/ha) and rice yield (8 ton/ha) were taken from the treatment of  D8 and D3 respectively.Keywords: azolla‐rice paddy, rice yield, soil capital nitrogen, Urea
LAJU PERTUMBUHAN DAN PENAMBATAN N2 AZOLLA PADA BERBAGAI INTENSITAS PENYINARAN DAN TINGGI GENANGAN Jaka Suyana; Sudadi Sudadi; Supriyadi Supriyadi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 1, No 1 (2001)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v1i1.88

Abstract

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Co-Authors ABDI LEONARDO SARAGIH Abdul Khafid Achmad Ruslan Afendi Agus Mubarak Aji Luqman Panji Akhmad Ramli Anak Agung Gede Sugianthara Andre Aggasy Harhara Dwi Priyo Ariyanto Endang Setyorini Erwin Purniawati Hery Widijanto Ilzar Daud Ivonne Ayesha Jaka Suyana JAKA WIDADA Joko Sulianto Lutfy Ismoyo Mohammad Denny Permana Muhammad Suhdy Muhammad Supriyadi Nunik Iriyanti Ramadhan Parwati Parwati Retno Rosariastuti Sabil Sabil Sumarno Sumarno Sumarno Sumarno Supriyadi Supriyadi Wiwin Widiastuti Yasinta Choirina