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All Journal Agrikultura Microbiology Indonesia Caraka Tani - Agriculture Science Journal Sains Tanah Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Planta Tropika SAINS TANAH - Journal of Soil Science and Agroclimatology Caraka Tani: Journal of Sustainable Agriculture PRIMA: Journal of Community Empowering and Services Journal of Smart Agriculture and Environmental Technology
Sudadi Sudadi
Department Of Soil Science, Faculty Of Agriculture, Sebelas Maret University; (Scopus Author ID: 57190729277);
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Medicine & Pharmacology Veterinary

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Dampak Abu Vulkanik Erupsi Gunung Kelud dan Pupuk Kandang terhadap Ketersediaan dan Serapan Magnesium Tanaman Jagung di Tanah Alfisol Suntoro Suntoro; Hery Widijanto; Sudadi Sudadi; Eko Eri Sambodo
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 11, No 2 (2014)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v11i2.222

Abstract

The impact of Volcanic Ash of Kelud Eruption and Manure on Availability and Magnesium Uptake of Corn in Alfisols. Impact of fresh volcanic ash on soil fertility is rarely studied mainly on nutrient availability, uptake and on plant growth. Fresh volcanic ash is primary mineral that takes time and agents such as organic materials to mineralized before it contribute to soil fertility. This study aimed to study the effect of the thickness of fresh volcanic ash of Kelud Mountain and dosage of manure on availability and uptake of Magnesium and chlorophyll content of corn in Alfisol. This is greenhouse experiment arranged in factorial completely randomized design with two treatment. The first factor is the thickness of volcanic ash: 0, 2. 4, and 6 cm, and the second factor is the dosage of manure: 0, 2 and 4 tonha-1, each treatment combination was repeated 3 times. Variables observed include exchangable-Mg , Mg uptake, and chlorophyll content of corn. The results showed that there is no interaction effect of volcanic ash and manure on exchangable-Mg, Mg uptake and chlorophyll content of corn. This proved that they affect nutrient availability in different ways. Both volcanic ash of Kelud eruptionas as well as manure increase exchangable-Mg, especially at 6 cm thickness of volcanic ash treatment, Mg-uptake and  chlorophyll content of corn leaf independently. There was a relationship between exchangable-Mg and chlorophyll content in the leaves.
Pendugaan Kadar Biomassa dan Karbon Tersimpan pada Berbagai Kemiringan dan Tutupan Lahan di KHDTK Gunung Bromo UNS Tira Anggit Drupadi; Dwi Priyo Ariyanto; Sudadi Sudadi
Agrikultura Vol 32, No 2 (2021): Agustus, 2021
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v32i2.32344

Abstract

Perubahan tutupan lahan hutan mengakibatkan penurunan biomassa dan sekuestrasi karbon pada vegetasi. Penurunan biomassa dapat dipengaruhi faktor kemiringan lereng. Lereng yang curam diketahui menurunkan pertumbuhan vegetasi dan berdampak pada biomassa. Penelitian ini bertujuan untuk mengetahui pengaruh tutupan dan kemiringan lahan terhadap biomassa pohon, serasah dan karbon tersimpan serta mengetahui kadar biomassa pohon, serasah dan karbon tersimpan. Penelitian ini menggunakan metode survey dan penentuan titik pengamatan secara purposive sampling pada empat tutupan (Campuran, Mahoni, Pinus-Mahoni, Pinus) dan tiga kelas kemiringan lahan (0-15%, 15-30%, dan >30%). Estimasi biomassa menggunakan metode non-destructive dan dihitung menggunakan persamaan allometrik. Petak ukur dibuat berukuran 20 m x 20 m dengan jumlah 48 petak untuk pengamatan pohon dengan diameter ≥ 5 cm, kemudian dibuat sub petak untuk pengamatan serasah berukuran 1 m x 1 m. Hasil percobaan menunjukkan bahwa tutupan lahan Pinus menghasilkan biomassa pohon dan karbon tersimpan tertinggi bila dibandingkan dengan tutupan lahan lainnya dan variasi kemiringan menghasilkan biomassa pohon dan karbon tersimpan yang seragam atau sama. Kadar biomassa pohon dan karbon pada setiap tutupan lahan masing-masing berkisar antara 171,72–385 ton/ha dan 80,71–181,12 tonC/ha. Kadar biomassa serasah pada setiap tutupan berkisar antara 0,60–1,60 ton/ha/bulan.
Assessment of soil degradation in Pitu District, Ngawi Regency M Mujiyo; S Sumarno; S Sudadi; Retno Wisnu Murti
Journal of Degraded and Mining Lands Management Vol 7, No 2 (2020)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2020.072.2049

Abstract

This study aimed to determine the status of soil damage in Pitu District, Ngawi Regency. The study was conducted in a descriptive exploratory with survey methods. Determination of site sampling was done by purposive sampling, based on distribution or division and land use categories from the results of map overlays. Assessment of soil degradation potency was based on land units from the uniformity of the soil, rainfall, slope, and land use map. Land units resulting from overlay were scored based on the results of multiplication of weights and soil, slope, rainfall, and land use ratings. Total score indicates soil Degradation Potency (SDP). Assessment of soil degradation status was done through matching and scoring. Field observation results were matched with the standard criteria of soil degradation from Indonesian Government Regulation No. 150 of 2000. Each parameter was scored, then the total score was used to determine soil degradation status. Soil degradation potency in Pitu District, Ngawi Regency is PR II (Low) at LMU (Land Map Units) 1, 3, 4, 5, and 8, and PR III (Moderate) at LMU 2, 6, 7, 9, and 10. Soil degradation status in Pitu District, Ngawi Regency is slightly degraded at all LMU, with limiting factors, namely texture, bulk density, total porosity, and permeability.
Pengaruh Dosis Inokulum Azolla, Fosfat Alam dan Abu Sekam terhadap Sifat Fisika Tanah dan Hasil Padi pada Alfisols Vivit Nurcahyani; Sumarno Sumarno; Sudadi Sudadi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 11, No 1 (2014)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v11i1.219

Abstract

TITLE : THE EFFECT OF AZOLLA INOCULUM, PHOSPHATE ROCK AND RICE HULL ASH DOSAGES ON RICE YIELD AND SOIL PHYSICAL OF ALFISOLS. The use of agrochemical materials to increase rice yield in a long term may cause soil, environment damages and have low productivity. One of the ways to increase the rice yield and improve soil health is organic rice cultivation by applaying organic fertilizer inputs derived from azolla. This research objective is to find out the effect of azolla, phosphate rock and husk ash dosages, as well as the best combination of azolla, rock phosphate and husk ash which is best for soil physical and yield of rice on Alfisols. The experimental design used was Completely Randomized Design (CRD), consists of 5 treatment and repeated 5 times. Data analysis using the F test (Fisher test) with 95% level confidence. Variables measured were field capacity, maximum moisture content, bulk density, aggregate stability, plant height, dry weight of harvest rice and milled rice. The results showed the treatment combination of azolla 250 g m-2, rock phosphate equivalent with 150 kgha-1 SP-36 and husk ash equivalent with 100 kgha-1 KCl give the highest aggregate stability.
PENGARUH DOSIS KOMPOS AZOLLA DAN PUPUK FOSFAT ALAM TERHADAP KETERSEDIAAN FOSFOR DAN HASIL KACANG TANAH PADA ALFISOLS Mohammad Denny Permana; 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.v10i2.195

Abstract

Title : The Effect Of Azolla Compost and Phosphate Rock Fertilizer Doses on Phosphor Availability and Yield of Peanut on Alfisols. The purpose of this experiment was to determine the best doses combination of azolla compost and phosphate rock which gives the highest availability P and peanut yield. The experiment was conducted from May to November 2012 at Dryland Research Center Faculty, at Jumantono subdistrict, Karanganyar and Soil Chemistry and Fertility Laboratory of Agriculture University of Sebelas Maret Surakarta. The experiment design used was completely randomized design (CRD) with the treatments combination of azolla compost and phosphate rock fertilizers i.e P0 (without treatment), P1 (75 kg ha-1 of phosphate rock), P2 (150 kg ha-1of phosphate rock), P3 (2,5 tons ha-1 azolla compost), P4 (2.5 tons ha-1 azolla compost and 75 kg ha-1of phosphate rock ), P5 (2.5 tons ha-1 azolla compost and 150 kg ha-1 phosphate rock), P6 (5 tons ha-1 of compost azolla), P7 (5 tons ha-1 of azolla compost and 75 kg ha-1 phosphate rock), and P8 (5 tons ha-1 azolla compost and 150 kg ha-1 of phosphate rock) and P9 (5 tons ha-1 manure) and P10 (50 kg ha-1 of urea, 100 kg ha-1 SP36, and 75 kg ha-1 KCl) as comparison treatments. The planting was conducted in the 30x40 cm pots filled with 12 kg of finely soil passes 2mm filter. Each pot planted with 3 seeds peanuts, then reduced to one crop per pot at 14 days after planting. Data were analyzed by F test 95% confidence level, if there is a significant influence followed by DMRT at 95% confidence level. Variables for this experiment are phosphor avaibility, CEC, organic matter, total N in the soil, fresh biomass and dry biomass peanut,height of the plant, fresh weight of pods, dry weight of pods, number of pods, dry seed weight and number of seed. The results showed that the best dose treatment was P8 which gives the highest of availability phosphor (13,01 ppm) and peanut yield (1,96 tons ha-1)
PENGARUH BAHAN ORGANIK TERHADAP POPULASI Aspergilhis flavus PADA BEBERAPA JENIS TANAH Sudadi Sudadi; Endang Setyorini
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 2, No 1 (2002)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v2i1.100

Abstract

The objective of the research was to study the effect of soil type and organic matters applied on the growth of innoculated Aspergilus flavus. Considering the caracleristics of soil and organic matter source types, the organic carbon content total nitrogen content. C/N ratio and pH of the soil were analized. The research design used was completely randomized block design with two factors, namely soil type (regosol, grucmosol and latosol) and organik matters applied (control; manure and straw). Treatment replication was considered as variation source of block. It was indicated that there was signcant effect (P < 0,05) of soil type on the growth of the fungsi. Latosol tended to give higher growth than regosol and grumosol. Though no significant effect of organics matters indicated, the fungsi showed better growth with application of straw. It seemed the result had nothing to do with the carbon and nitrogen content of the soil. They might be caused by other factors that should be studied further
POTENSI ISOLAT MIKROBIA ASAL ANDISOL DIENG, JAWA TENGAH SEBAGAI INOKULUM PUPUK HAYATI PENGOKSIDASI SULFUR Sudadi Sudadi; Ika Ernawati; Sumarno Sumarno; Widyatmani Sih Dewi; Hery Widijanto
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 10, No 1 (2013)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v10i1.130

Abstract

Title : Study on The Potency of Soil Microbes Isolated from Andisols of Dieng, Central Java,  as S-Oxidizing Biofertilizer Inoculant. The problem of nutrient deficiences tend to increase, including sulfur deficiency. The use of high purity NPK fertilizers stimulate sulfur deficiency in agricultural land. This problem can be corrected by the use of elemental sulfur accompanied with S-oxidizing biofertilizer. The study aimed to evaluate the potential of sulfur oxidizing microbial isolated from Andisols of Dieng Central Java as S-oxidizing inoculant. Andisols Dieng naturally contains high sulfur that allegedly inhabited many sulfur-oxidizing microbials. The research consisted of two experiments, each arranged in completely randomized design (CRD). Each experiment consist of two factors namely the kind of microbial isolated from Andisols Dieng and incubation time. The first experiment used Czapek-dox+elemental sulfur medium, while the second experiment used vermicompost as medium. The observed variables include soluble-S, bacterial density, biomass of fungi and medium pH. One isolate of bacteria (I1)and three isolates of fungi (F1, F2 and F3) taken from Andisol of Dieng showing their ability to oxidize sulfur in Czapek-dok agar medium. They were used as isolates in the experiment. The result of the first experiment showed that the oxidized sulfur increased with the length of incubation time as indicated by the increase of soluble-S, bacterial cell density or fungi biomass in the medium followed by the decrease of pH. The second experiment showed that the population of bacteria or fungi isolates and soluble-S of vermicompost were increased collaterally with incubation time. The fungi isolate of F2 have the highest potency as inoculant of S-oxidizing biofertilizer as shown by it ability to survive, grows and oxidize S both in Czapek-dox+elemental sulfur liquid medium as well as in vermicompost medium.
KAJIAN PEMANFAATAN LIMBAH INDUSTRI ALKOHOL CIU BEKONANG SEBAGAI BAHAN PUPUK ORGANIK CAIR PLUS 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.v1i1.87

Abstract

N/A
PENGARUH PUPUK KANDANG TERHADAP P-TERSEDIA PUPUK FOSFAT ALAM YANG DIINOKULASI BAKTERI PELARUT FOSFAT Sudadi Sudadi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 7, No 2 (2010)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v7i2.41

Abstract

Title : The Effect of Manure on Available-P of Phosphate Rock Fertilizer Inoculated with P-solubilizer Bacteria. Experiment conducted at Soil Biology Laboratory, Faculty of Agriculture UNS Surakarta. This experiment aimed to study the effect of manure on solubilising capacity of P-solubilizer bacteria on phosphate rock fertilizer. The experiment arranged in completely randomized design with two factors i.e. dosages of manure added and inoculums rates of P-solubilizer bacteria (PSB) (Bacillus megatherium var phosphaticum). The manure added were 0 g (K0), 250 g (K1), and 500 g (K2) per 5 kg phosphate rock fertilizer. While the PSB inoculums rates were 0 cell/g (B0), 5.105 cell/g (B1) and 10.105 cell/g of phosphate rock fertilizer. The variables analysed at 2, 4 and 6 weeks after incubation for available-P, pH, organic matter content and total PSB. Data analysed with F test and DMRT at 95 % level of significant. The result indicated that available-P of phosphate rock fertilizer was significantly affected by PSB inoculation rates, doses of manure and incubation time. Available-P increase coincided with increasing of PSB inoculums and manure rates as well as incubation time. Treatment combination of PSB at 10.105 cell/g and manure of 500 g/ 5 kg increase available-P up to 80.59 ppm (151.5 % of the control treatment) at the end incubation time. Keywords: Manure, Phosphate Rock Fertilizer, P-solubilizer Bacteria
SERAPAN DAN KETAHANAN AZOLLA TERHADAP KROMIUM PADA VERTISOLS DAN ENTISOLS DENGAN BERBAGAI TINGGI GENANGAN AIR Sudadi Sudadi; Dwi Priyo Ariyanto; Erwin Purniawati
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 6, No 2 (2009)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v6i2.57

Abstract

Title : The Uptake and Tolerance of Azolla to Chromium on Vertisols and Entisols at Various Water Levels. This research aims to study the effect of water level, soil kind, chromium concentration (Cr), and their interactions on uptake and tolerance of azolla to Cr. The research was done in March to May 2009 in the green house of Faculty of Agriculture, Sebelas Maret University, Surakarta. The research used completely randomized design (CRD) factorial with three treatment factors, they were: soil kind (Vertisols of Jatikuwung and Entisols Colomadu, Karanganyar), water levels (0; 2; and 7 cm) and Cr concentrations (0; 5; 10; 15; and 20 ppm). There were 191 g of Vertisols and 200 g of Entisols pass to 2 mm sieve put into plastic pot and watering at various levels according to the treatments. A gram of fresh azolla was spread on each pot and incubated for three weeks. Each treatment combinations were replicated three times. Sampling was taken at 1, 2, and 3 weeks after planting for azolla biomass, Cr uptake of azolla, available Cr, and Cr toxicities symptoms of azolla. The data analyzed statistically by Kruskal Wallis test at 95% level significant, followed with Mood Median test. The result shows that soil kind has no significant effect, while water level, Cr concentration, and treatment interaction contribute highly significant influence on uptake and tolerance of azolla to Cr. The highest uptake of Cr at the Vertisols was taken at 7 cm water level and 15 ppm Cr concentration, while at the Entisols was in 2 cm of water level and 15 ppm Cr concentration. Azolla most tolerance to Cr at treatment combination of 2 cm water level and 10 ppm Cr concentration in Vertisols, and at 2 cm water level and 5 ppm Cr concentration at Entisols. Keywords: A. mycrophylla, chromium, Cr uptake and tolerance, water level
Co-Authors ABDI LEONARDO SARAGIH Anak Agung Gede Sugianthara Anandeya Satrio Sambodo, Anandeya Satrio Arbain Arbain, Arbain Bambang Suryono, Bambang Bayu Rahmad Bernadip Canggih Jati Nusantara, Canggih Jati Claudia Sandy Sofani Demelia Arida Ariyanti Dhani Dhyana Ciptasari Dwi Priyo Ariyanto Ega Yuana Putri Eko Eri Sambodo Endang Setyorini Erwin Purniawati Hadiwiyono Hadiwiyono Hadiwiyono Hadiwiyono Hadiwiyono Hadiwiyono Hery Widijanto Ika Ernawati Jaka Suyana JAKA WIDADA Linda Habsari Efendi Putri Lutfy Ismoyo Mangastuti, Rebecca Sidhapramudita MM Rudi Prihatno, MM Rudi Mohammad Denny Permana Mujiyo Mujiyo Nunik Iriyanti Ramadhan Oetoro, Bambang J. Parwati Parwati Purwanto Purwanto Putri, Ega Yuana Rahmatisa, Dimas Ratih Kirana Retno Rosariastuti Retno Wisnu Murti S Sumarno Selly Maisyarah Shofiyah, Laily Sri Hartati Sri Rahardjo Sumarno . Sumarno Sumarno Sumarno Sumarno Sumarno Sumarno Sumarno Sumarno Sumarno Sumarno Suntoro Suntoro Suntoro Suntoro Suntoro Suntoro Supriyadi Supriyadi Suryono Suryono Suryono Suryono Suyasa, Agus Baratha Tira Anggit Drupadi Vita Ratri Cahyani Vivit Nurcahyani Widyatmani Sih Dewi Wiki Handi Wiwin Widiastuti Yasinta Choirina