scholarly journals Respons Aplikasi Partikel Nano Abu Vulkanik dan Batuan Fosfat terhadap Beberapa Sifat Kimia Tanah Inceptisols Cilembu, Jawa Barat

2020 ◽  
Vol 44 (2) ◽  
pp. 109
Author(s):  
Pradhinto Dwi Nugroho ◽  
Mahfud Arifin ◽  
Rina Devnita
Keyword(s):  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Phosphate Rock ◽  
Volcanic Ash ◽  
Soil Acidity ◽  
Exchange Capacity ◽  
Nano Particles ◽  
Available P ◽  
P Availability ◽  
Phosphate Rocks

<p class="teksabst"><strong>Abstrak.</strong><em> </em>Kandungan dan ketersediaan unsur P,  yang merupakan unsur esensial,  rendah pada Inceptisols Cilembu. Unsur P dalam bentuk partikel nano diharapkan dapat mudah diserap oleh tanah. Penelitian ini bertujuan mengetahui pengaruh amelioran partikel nano (abu vulkanik dan batuan fosfat) terhadap P-tersedia dan kemasaman tanah (pH-H<sub>2</sub>O), serta kapasitas tukar kation (KTK) tanah Inceptisols Cilembu, Sumedang, Jawa Barat. Penelitian dilaksanakan pada bulan Januari sampai dengan Juni 2019 di Laboratorium Fisika Tanah Departemen Ilmu Tanah dan Sumber Daya Lahan, Fakultas Pertanian, Universitas Padjadjaran. Metode penelitian menggunakan Rancangan Acak Lengkap Faktorial. Penelitian dilakukan dengan inkubasi partikel nano abu vulkanik dan batuan fosfat dengan dosis masing-masing 0% (0 g), 2% (20 g per kg tanah), 4% (40 g per kg tanah) dan 6% (60 g per kg tanah). Hasil penelitian menunjukkan tidak terjadi interaksi antara partikel nano abu vulkanik dan batuan fosfat terhadap P-tersedia dan kemasaman tanah (pH-H<sub>2</sub>O) dan kapasitas tukar kation (KTK). Partikel nano abu vulkanik dan batuan fosfat terlihat nyata berpengaruh terhadap P tersedia setelah inkubasi bulan pertama dan bulan kedua. Penggunaan partikel nano abu vulkanik berpengaruh nyata terhadap meningkatnya pH setelah inkubasi bulan pertama. Interaksi partikel nano abu vulkanik dan partikel nano batuan fosfat tidak berpengaruh nyata terhadap nilai KTK.<strong></strong></p><strong>Abstract. </strong>The content and availability of P, which is an essential element in Cilembu Inceptisols. is low. P element in the form of nano particles is expected to increase P availability. The aim of the study was to evaluate the effect of Ameliorant nanoparticles (volcanic ash and phosphate rock) on P availability and soil acidity (pH-H<sub>2</sub>O) as well as cation exchange capacity (CEC) in Inceptisols Cilembu, Sumedang, West Java. This research conducted in January to June 2019 in the Soil Physics Laboratory of the Department of Land Science and Land Resources, Faculty of Agriculture, Padjadjaran University. The research used Factorial Completely Randomized Design. The study carried out by incubation of volcanic ash nano particles and phosphate rocks with doses of 0% (0 g), 2% (20 g per kilograms of soil), 4% (40 g per kilograms of soil) and 6% (60 g per kilograms of soil). The results showed no interaction between volcanic ash nano particles and phosphate rocks on available P, soil acidity (pH-H<sub>2</sub>O) and cation exchange capacity (CEC). The effect of nano particles of volcanic ash and phosphate rock was significantly affected by available P after incubation of the first and second months. The use of nano volcanic ash particles has a significant effect on increasing pH after the incubation of the first month. Interaction effect of volcanic ash nano particles and phosphate rock nano particles was not significant on CEC value.

Application of Nanoparticle of Merapi Volcanic Ash and Phosphate-Solubilizing Fungi in Improving Inceptisols Characteristics

2021 ◽  
Vol 1044 ◽  
pp. 113-120
Author(s):  
Rina Devnita ◽  
Apong Sandrawati ◽  
Mahfud Arifin ◽  
Pujawati Suryatmana ◽  
Muhammad Amir Solihin ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Volcanic Ash ◽  
Exchange Capacity ◽  
Soil Microbiology ◽  
Available P ◽  
Research Centre ◽  
Soil Physics ◽  
Weight Percentage ◽  
Phosphate Solubilizing

Nanoparticles of Merapi volcanic ash and phosphate-solubilizing fungi were expected to function as ameliorants in improving some Inceptisols characteristics. Nanoparticles of volcanic ash were used in accelerating and streamlining the chemical reaction in the soil. Phosphate-solubilizing fungi were expected to assist the process of several soil reactions. The aim of the research was to improve some chemical characteristics like available P, cation exchange capacity, Fe, and Zn content of Inceptisols in Cilembu Village, Sumedang District, West Java Province, Indonesia. The research used a complete randomized experimental design in factorial with two factors. The first factor was the nanoparticle of Merapi volcanic ash consisted of four doses on soil weight percentage (0%, 2%, 4%, and 6%). The second factor was phosphate-solubilizing fungi consisted of two doses (without and 10 g.kg-1). The volcanic ash was collected from Mt. Merapi, Central Java, after the eruption of November 2010 and kept in the Laboratory of Soil Physics and Conservation in Faculty of Agriculture, Universitas Padjadjaran. The nanoparticle of volcanic ash was processed at Nanotechnology and Graphene Research Centre, Universitas Padjadjaran. The phosphate-solubilizing fungi were isolated from Inceptisols in Soil Microbiology Laboratory, Universitas Padjadjaran. These treatments were combined and mixed with soils and incubated for three months. Every one month during those three months of the incubation period, some soils were taken to be analyzed of available P, cation exchange capacity (CEC), available Fe, and available Zn. The result showed that there was no interaction between the nanoparticle of Merapi volcanic ash and phosphate-solubilizing fungi to parameters investigated except the CEC after two months of incubation. There was an effect of nanoparticle volcanic ash and phosphate-solubilizing fungi individually to available Fe dan Zn. There was a trend of increasing available P, and CEC and decreasing available Fe and Zn by the longer period of incubation.

scholarly journals Crop Response to Soil Acidity Factors in Ultisols and Oxisols in Puerto Rico. XII. Tomatoes

1969 ◽  
Vol 69 (3) ◽  
pp. 357-365
Author(s):  
Edmundo Rivera ◽  
José Rodríguez ◽  
Fernando Abruña
Keyword(s):  
Puerto Rico ◽  
Cation Exchange ◽  
Soil Ph ◽  
Cation Exchange Capacity ◽  
Soil Acidity ◽  
Exchange Capacity ◽  
Crop Response ◽  
Exchangeable Al

The effect of acidity factors of two Ultisols and one Oxisol on yield and foliar composition of tomatoes was determined. Yields were not markedly reduced by acidity in the Ultisols until pH dropped to around 4.6 with 45% Al saturation of the cation exchange capacity (CEC), and no yield was produced at about pH 4.1 and 80% Al saturation. In the Oxisol, tomato yields dropped steadily from 39.7 t/ha, when there was no exchangeable AI, to 17.5 t/ha at the highest level of acidity, pH 4.4 and 43% AI saturation. In all soils, yields were closely correlated with soil pH, exchangeable Al and Ca and Al/Ca.

scholarly journals An In Vitro Evaluation of the Capacity of Local Tanzanian Crude Clay and Ash-Based Materials in Binding Aflatoxins in Solution

Toxins ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 510 ◽  
Author(s):  
Emmanuel Ayo ◽  
Athanasia Matemu ◽  
Germana Laswai ◽  
Martin Kimanya
Keyword(s):  
Cation Exchange ◽  
Adsorption Capacity ◽  
Cation Exchange Capacity ◽  
Volcanic Ash ◽  
Rice Husk Ash ◽  
Binding Capacity ◽  
Exchange Capacity ◽  
In Vitro Technique ◽  
Great Health

Aflatoxins in feeds cause great health hazards to animals, and thus eventually to humans as well. The potential of clays from Arusha (AC), Kilimanjaro (KC), the Coast (CC), and Morogoro (MC), as well as volcanic ash (VA) and rice husk ash (RA), were evaluated for their capacity to adsorb aflatoxins B1 (AFB1), B2 (AFB2), G1 (AFG1), and G2 (AFG2) relative to a commercial binder Mycobind® (R) using in vitro technique. On average, CC, VA, KC, MC, AC, RA, and R adsorbed 39.9%, 51.3%, 61.5%, 62.0%, 72.6%, 84.7%, and 98.1% of the total aflatoxins from solution, respectively. The capacity of AC and RA was statistically (p < 0.05) better in binding aflatoxins next to R. The adsorption capacity seemed to follow the trend of the cation exchange capacity (CEC) of these materials. The CEC (meq/100 g) of CC, MC, KC, VA, AC, RA, and R were 7.0, 15.4, 18.8, 25.4, 27.2, 27.2, and 38.9, respectively. On average 96.3%, 42.7%, 80.8%, and 32.1% of AFB1, AFB2, AFG1, and AFG2 were adsorbed, respectively. The binding capacity of the clays and ashes relative to Mycobind® was about 100% for AC and RA, 50% for KC, MC, and VA, and 33.3% for CC. The AC and RA seem to be promising resources in binding aflatoxins in solution.

scholarly journals Effects of Soil Acidity Factors on Yields and Foliar Composition of Two Rice Varieties withSupplementary Overhead Irrigation

1969 ◽  
Vol 68 (4) ◽  
pp. 413-422
Author(s):  
Fernando Abruña ◽  
Edmundo Rivera
Keyword(s):  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Soil Acidity ◽  
Maximum Yield ◽  
Exchange Capacity ◽  
Rice Varieties ◽  
Exchangeable Al ◽  
Overhead Irrigation ◽  
Decreasing Ph

Rice varieties IRS and Chontalpa 16 growing in two Ultisols with periodic overhead irrigation were quite tolerant to acidity producing around 80% of maximum yield at pH 4.8 and 30% Al saturation of the soils cation exchange capacity, a level common in Ultisols. However, maximum yields were obtained at pH 5.5 when no exchangeable Al was present in the soil. The Ca content of the leaves of both rice varieties decreased with decreasing pH and increasing Al saturation of the soils exchange capacity. Soil acidity factors in an Oxisol did not affect yields of the IRS variety, even at pH 4.5.

Correction of Acid Infertility in Rwandan Oxisols with Lime from an Indigenous Source for Sustainable Cropping

1992 ◽  
Vol 28 (4) ◽  
pp. 417-424 ◽  
Author(s):  
Charles F. Yamoah ◽  
J. R. Burleigh ◽  
V. J. Eylands
Keyword(s):  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Crop Production ◽  
Soil Acidity ◽  
Crop Yields ◽  
Residual Effect ◽  
Exchange Capacity ◽  
Simple Regression Analysis ◽  
Lime Application ◽  
Simple Regression

SUMMARYSustainable crop production on Rwandan oxisols is limited by widespread soil acidity caused by high levels of exchangeable aluminium. This study was designed to test the effectiveness of an indigenous lime material in counteracting the acidity and enhancing crop yields. Lime application significantly raised pH, exchangeable calcium and effective cation exchange capacity, and reduced exchangeable aluminium and total acidity. Calcium was directly proportional to effective cation exchange capacity (r = 0.962**) and was inversely related to aluminium (r = −0.955**). Consequently, yields of wheat, beans and potatoes, which served as test crops, were significantly increased by liming. Lime at high rates (4–8 t ha−1) had a longer residual effect than at low rates (less than 2 t ha−1), suggesting frequent applications are needed when low lime rates are used. Simple regression analysis showed an increase in pH of 0.154 units and a decrease in exchangeable aluminium of 0.385 meq 100 g−1 for a tonne of lime applied.

THE EFFECT OF PARTICLE SIZE OF VOLCANIC ASH AND PHOSPHATE ROCK IN ANDISOL

2019 ◽  
Vol 24 (1) ◽  
pp. 55-64
Author(s):  
Nur Azizah ◽  
Mahfud Arifin ◽  
Maya Damayani
Keyword(s):  
Leaf Area ◽  
Phosphate Rock ◽  
Volcanic Ash ◽  
Soil Analysis ◽  
Block Design ◽  
Available P ◽  
Vegetable Crops ◽  
Phosphate Rocks ◽  
West Java ◽  
P Retention

This study was aimed at determining the effect of various particle sizes of volcanic ash and phosphate rock, including normal size (2mm), micron (200 µm) and nano (400 ղ m) on available P, P retention, delta pH and leaf area of tea plant seeds in Ciater PTPN XII Tea Plantation, West Java. The study was carried out in December 2017 until February 2018. The soil analysis was carried out at the Integrated Testing Laboratory, Vegetable Crops Research Institute, Lembang, West Java. The manufacture of micron and nano volcanic ash and phosphate rock particles was carried out at the Nanotechnology and Graphine Laboratory, Mathematics and Science Faculty, Padjadjaran University and at Tekmira Research Center, Bandung. The research design used was a Randomized Block Design (RBD) consisting of 10 treatments of the combination of volcanic ash and phosphate rocks which were repeated three times. The results show that there is a significant effect of volcanic ash and phosphate rocks of normal size to a decrease in P retention of up to 42.87%. The combination of the treatment of normal-sized volcanic ash and nano-sized phosphate rocks has a significant effect on the total leaf area of the Gambung 7 clone plant, but it did not significantly affect the available P and delta pH.PENGARUH UKURAN PARTIKEL ABU VULKANIK DAN BATUAN FOSFAT PADA ANDISOLPenelitian ini bertujuan untuk mengetahui pengaruh pemberian berbagai ukuran partikel abu vulkanik dan batuan fosfat, meliputi ukuran normal (2mm), mikron (200 µm) dan nano (400 ղm) terhadap P tersedia, retensi P, delta pH dan luas daun bibit tanaman teh di Perkebunan Teh PTPN XII Ciater, Jawa Barat. Penelitian lapangan dilaksanakan pada Desember 2017 sampai Februari 2018. Analisis tanah dilakukan di Laboratorium Penguji Terpadu, Balai Penelitian Tanaman Sayuran, Lembang, Jawa Barat. Pembuatan partikel mikron dan nano abu vulkanik dan batuan fosfat dilakukan di Laboratorium Nanoteknologi dan Graphine, Fakultas MIPA, Universitas Padjadjaran dan di Puslitbang Tekmira, Bandung. Rancangan penelitian yang digunakan adalah Rancangan Acak Kelompok (RAK) yang terdiri atas 10 perlakuan kombinasi ukuran abu vulkanik dan batuan fosfat yang diulang sebanyak tiga kali. Hasil penelitian ini menunjukkan bahwa terdapat pengaruh nyata pemberian abu vulkanik dan batuan fosfat yang berukuran normal terhadap penurunan retensi P hingga 42,87%. Kombinasi perlakuan abu vulkanik berukuran normal dan batuan fosfat berukuran nano berpengaruh nyata terhadap total luas daun tanaman teh klon Gambung 7, tetapi tidak berpengaruh nyata terhadap P tersedia dan delta pH.

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