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All Journal NOTARIUS Diponegoro Law Journal Journal of Tropical Soils JEB17 : Jurnal Ekonomi dan Bisnis Heuristic IJEBD (International Journal Of Entrepreneurship And Business Development) CROP AGRO, Scientific Journal of Agronomy Widya Balina :Jurnal Ilmu Pendidikan dan Ekonomi Law, Development and Justice Review Klorofil: Jurnal Penelitian Ilmu-Ilmu Pertanian Jurnal Abdi Insani ABDI MASSA: Jurnal Pengabdian Nasional PRAJA observer: Jurnal Penelitian Administrasi Publik Sabda : Jurnal Teologi Kristen Agroteksos GEMAH RIPAH: Jurnal Bisnis Jurnal Nirta: Studi Inovasi Journal of Macroeconomics and Social Development Journal of Business Economics and Agribusiness Jurnal Hukum dan Pembangunan Journal of Soil Quality and Management Jurnal Perikanan J-CEKI JUITA SEJATI
Joko Priyono
Dosen Fakultas Ekonomi Universitas 17 Agustus 1945 Surabaya2
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Other

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Journal : Journal of Tropical Soils

 1 
Dissolution Kinetics of Milled-Silicate Rock Fertilizers in Organic Acid Priyono, Joko; Gilkes, Robert John
JOURNAL OF TROPICAL SOILS Vol 13, No 1: January 2008
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2008.v13i1.1-10

Abstract

A dissolution experiment was carried out to identify the effects of milling condition on dissolution kinetics of silicate rock fertilizers. Initially ground materials (Ø < 250 μm for basalt, dolerite, gneiss, and Ø < 150 μm for K-feldspar) were further milled with a ball mill (Spex 8000) under dry and wet conditions for 10, 60, and 120 minutes. The rock powders were dissolved in a mixture of 0.01M acetic-citric acid at a rock powder/solvent ratio of 1/1000, and the solution was agitated continuously on a rotary shaker at 25o C.  The concentrations of dissolved Na, K, Ca, Mg, Al, and Si from the milled rocks were determined at intervals from 1 hour up to 56 days. Results indicated that the relationships of quantity of dissolved rock and elemental plant nutrients (Et) with time (t) were well described by a power equation: Et = Eo + atn with reaction order (n) of 0.3 – 0.8. Milling increased quantity of total and individual dissolved element (Et ), dissolution rate (Rt), the proportion of rapidly soluble rock or element (Eo), and dissolution constant a. The increases in dissolution due to dry milling were larger than for wet milling. Although further proves should be provided, results of this dissolution experiment clearly indicates that SRFs may be used as multinutrient fertilizers as well as remedial materials for acidic soils; and dry milling may be applied as an appropriate method for manufacturing effective SRFs.
Dissolution Kinetics of Milled-Silicate Rock Fertilizers in Organic Acid Priyono, Joko; Gilkes, Robert John
JOURNAL OF TROPICAL SOILS Vol. 13 No. 1: January 2008
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2008.v13i1.1-10

Abstract

A dissolution experiment was carried out to identify the effects of milling condition on dissolution kinetics of silicate rock fertilizers. Initially ground materials (Ø < 250 μm for basalt, dolerite, gneiss, and Ø < 150 μm for K-feldspar) were further milled with a ball mill (Spex 8000) under dry and wet conditions for 10, 60, and 120 minutes. The rock powders were dissolved in a mixture of 0.01M acetic-citric acid at a rock powder/solvent ratio of 1/1000, and the solution was agitated continuously on a rotary shaker at 25o C.  The concentrations of dissolved Na, K, Ca, Mg, Al, and Si from the milled rocks were determined at intervals from 1 hour up to 56 days. Results indicated that the relationships of quantity of dissolved rock and elemental plant nutrients (Et) with time (t) were well described by a power equation: Et = Eo + atn with reaction order (n) of 0.3 – 0.8. Milling increased quantity of total and individual dissolved element (Et ), dissolution rate (Rt), the proportion of rapidly soluble rock or element (Eo), and dissolution constant a. The increases in dissolution due to dry milling were larger than for wet milling. Although further proves should be provided, results of this dissolution experiment clearly indicates that SRFs may be used as multinutrient fertilizers as well as remedial materials for acidic soils; and dry milling may be applied as an appropriate method for manufacturing effective SRFs.
Evaluation for the Potential Use of Silicate Rocks from FourVolcanoes in Indonesia as Fertilizer and Soil Ameliorant Priyono, Joko; Sutriono, Raden; Arifin, Zaenal
JOURNAL OF TROPICAL SOILS Vol. 14 No. 1: January 2009
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2009.v14i1.1-8

Abstract

Silicate rocks, the abundant plant nutrient source in Indonesia, have not been evaluated for use as a fertilizer/and soil ameliorant. This research was aimed to identify (1) mineral and elemental compositions of silicate rocks originated from Galunggung, Kelud, Tambora, and Rinjani Volcanoes and (2) soil properties determining dissolution rate of plant nutrients from the silicate rock fertilizers (SRFs). The rocks were ground with a ball mill for 10 min providing SRFs with medians of particle size of 30 – 50 mm. Each SRF was added to 6 soils from West Java, East Java, and Lombok Island at a rate equivalent to 20 t ha-1, incubated for 28 days in a laboratory condition.  Results indicate that adding SRFs clearly increased soil pH with negligible effect on soil salinity. Adding SRFs also increased quantity of citric-oxalic-extractable plant nutrients (Ca, K, Zn, and Cu) and activity of soil micro-organisms. Dissolution of plant nutrients from the SRFs in the soils was mainly determined by combination factors of C-organic content and pH of soils before application of the SRFs. It was concluded that SRFs originated from those volcanoes may be used as a plant-multi nutrient source and a remedial agent for acidic and biologically degraded soils. However, the true effectiveness of SRFs for those uses needs to be further tested under various soil-plant systems.
Adding Organic Matter Enhanced the Effectiveness of Silicate Rock Fertilizer for Food Crops Grown on Nutritionally Disorder Soils: A Glasshouse Assessment Priyono, Joko; Arifin, Zaenal
JOURNAL OF TROPICAL SOILS Vol. 17 No. 2: May 2012
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2012.v17i2.97-104

Abstract

A glasshouse experiment was carried to identify effects of the application rate of ground silicate rock as a multinutrientfertilizer (SRF) with and without organic matter (OM) on growth and nutrient status of food crops (rice,corn, and soybean). Those crops were grown on 3 different soils in 2 cropping patterns, i.e., rice – soybean and corn– soybean, providing 6 experimental sets. A completely randomized design was applied in each experimental set.The treatment in each set consisted of 3 rates of SRF (5, 10, and 15 g kg-1), those 3 rates + 5 g kg-1 of OM, and acontrol (without adding SRF or OM). The first crops (rice and corn) were grown up to 65 days, while the secondcrop (soybean) was up to 40 days. Results indicated that for crops grown on less fertile soils, the application of SRFonly slightly increased growth of crops, mainly of the 2nd crops, and adding OM greatly increased the growth ofboth the 1st and 2nd crops. In those experimental sets, about 60 – 80% of the variation of crop growth was significantlydetermined by concentration of Cu and several other essential nutrients in crop tissue. In contrast, the growth forcrops grown on more fertile soils was not affected by the application of SRF or/and OM. It was concluded thatadding OM enhanced the effectiveness of SRF as a multi-nutrient fertilizer, and that may be used as an appropriatemulti-nutrient fertilizer or general ameliorant to sustain soil quality and remediate the nutritionally disorder soils.  
Co-Authors A. Farid .Hemon Abu Rizal Adji, Ikko Prastyo Aliya, Nilam Nur ansori, an ary yunanto Bagus Budianto, Muh Bhakti, Lalu Arifin Aria Budi Santoso, Bambang Christian Sitohang, Arga Edelweis Bunga Gunung Endang Susilawati, Lolita Eviani, Sri Fifiana Wisnaeni Gede Jaya Negara, I Dewa Gilkes, Robert John Hari Kusumo, Bambang Hariz, Miftahul I Made Suparta Imelda Martinelli, Imelda Istiono Kamila, Alfina Najwa Karyawan, I Dewa Made Alit Kasiyati, Sri Budi Kisman Kisman Lestari, Ulan Ayudia lustiowati, lustiowati Maharani Sukma, Novira MAYANTI, NUR Muhammad Maulana Muhammad Yasin Nanik Trihastuti Nunik Cokrowati Oentoro, Yose Psake P.S., Muhammad Ramadhan, Idam Cahaya Rika Andriati Sukma Dewi Rudy Santoso, Rudy Sinaga, Zuvico Singgih, Mochammad Sitohang, Christian Arga Spriyadi, Anid supriadin supriadin Sutriono, Raden Suwardji Syafrullah, Syafrullah Tajidan, Tajidan Taufiq Hidayat Trihastut, Nanik Utomo, Bagus Satrio Valentin, Baiq Heni Vioren, Feby Wardani, Mutia Rahma Wuriesyliane Wuriesyliane Zaenal Arifin