scholarly journals The Effectiveness Of Providing Vulanic Ash (Tuff Vulcan) And Dolomite As Amelioran Materials On The Growth Of Immature Liberica Coffee Plants In Peat Land Of Mekar Jaya Village

2020 ◽  
Vol 4 (2) ◽  
pp. 204-211
Author(s):  
Y. G. Armando ◽  
Anis Tatik Maryani ◽  
M. Syarif
Keyword(s):  
Volcanic Ash ◽  
Peat Soil ◽  
Chemical Properties ◽  
Coffee Plantation ◽  
Potential Yield ◽  
Coffee Plants ◽  
Productive Phase ◽  
Physical And Chemical ◽  
Development Center ◽  
The Village

Liberika coffee is one type of coffee that is widely cultivated by people in wetland areas (peat)  precisely in Betara District, Tanjung Jabung Barat Regency. In recent years, this district has become a development center and provider of Liberika coffee seeds for coffee plantation farmers from various regions such as Palembang, Kalimantan and Riau. Liberika coffee is a type of coffee that is able to adapt and produce quite well in peatlands with areca nut as a cover crop. The productivity of coffee in this area is still low at an average of 715 / kg when compared to the potential yield of Liberika coffee which can reach 950 kg / ha. Increasing production and productivity can be done through intensification and extensification. One of the efforts to improve the physical and chemical properties of peat soils so as to increase the growth and production of coffee plants is the use of ameliorants (soil enhancers). This study aims to develop a technology for using ameliorant to improve the chemical properties of peat soil. Specifically, through this study, the dosage combination of vulcan tuff ash and dolomite can be identified. which can substitute the use of artificial fertilizers (inorganic) so that it can increase the growth and production of immature liberica coffee plants on peatlands. especially the coffee plantation of farmers in the village of mekar jaya, betara district, tanjung jabung west district. From the results of this study it can be concluded that the treatment of volcanic ash and dolomite did not show significant differences in plant height parameters and, stem diameter. but it gives a real difference to the growth of live area, the number of flowers per bunch and the number of flowers in each bunch. treatment of volcanic ash 500 / gr / tree and dolomite 500 / gr / tree and a combination of volcanic ash 250 / gr / tree + dolomite 250 / gr / tree after 7 weeks of application can significantly spur on the initiation of flowering an average of 7 bunches of branch flowers if compare with control (no treatment). Likewise, observations 8 weeks after application showed the same thing, there was an increase in the number of flowers formed an average of 11 flower clumps branching. From the results of this study, it can be concluded that the provision of ameliorant from vulcan tuff ash and dolomite can improve the chemical properties of peat soil so as to increase nutrient availability for growth and production of the Liberika coffee plant. From the results of this study, it can also be suggested that the use of volcanic ash and dolomite at a dose of 250-500 gr / tree to accelerate the productive phase of immature liberica coffee plants (young plants) in peatlands.

Allophane and imogolite: role in soil biogeochemical processes

Clay Minerals ◽  
2009 ◽  
Vol 44 (1) ◽  
pp. 135-155 ◽  
Author(s):  
R. L. Parfitt
Keyword(s):  
Organic Matter ◽  
Plant Material ◽  
Volcanic Ash ◽  
Forest Biomass ◽  
Chemical Properties ◽  
Young Forests ◽  
Labile P ◽  
Physical And Chemical ◽  
By Products ◽  
And Chemical Properties

AbstractThe literature on the formation, structure and properties of allophane and imogolite is reviewed, with particular emphasis on the seminal contributions by Colin Farmer. Allophane and imogolite occur not only in volcanic-ash soils but also in other environments. The conditions required for the precipitation of allophane and imogolite are discussed. These include pH, availability of Al and Si, rainfall, leaching regime, and reactions with organic matter. Because of their excellent water storage and physical properties, allophanic soils can accumulate large amounts of biomass. In areas of high rainfall, these soils often occur under rain forest, and the soil organic matter derived from the forest biomass is stabilized by allophane and aluminium ions. Thus the turnover of soil organicmatter in allophanicsoils is slower than that in non-allophanicsoils. The organic matter appears to be derived from the microbial by-products of the plant material rather than from the plant material itself. The growth of young forests may be limited by nitrogen supply but growth of older forests tends to be P limited. Phosphorus is recycled through both inorganic and organic pathways, but it is also strongly sorbed by Al compounds including allophane. When crops are grown in allophanic soils, large amounts of labile P are required and, accordingly, these soils have to be managed to counteract the large P sorption capacity of allophane and other Al compounds, and to ensure an adequate supply of labile P. Because of their physical and chemical properties, allophanic soils are excellent filters of heavy metals and pathogens.

scholarly journals Properties and Constraints of Red-Yellow and Volcanic Ash Soils Planted to Rootcrops in the Philippines

2007 ◽  
Vol 07 (1) ◽  
pp. 52-78
Author(s):  
Anabella Tulin ◽  
Keyword(s):  
Volcanic Ash ◽  
Chemical Properties ◽  
Clay Content ◽  
The Philippines ◽  
P Availability ◽  
Compacted Soils ◽  
Soil Constraints ◽  
Physical And Chemical ◽  
Volcanic Ash Soils

Soil samples representing hightly weathered Red-Yellow and Volcanic Ash soils were collected from 45 pedons of different rootcrop producing provinces in the Philippines. This research was conducted to provide a comprehensive data on the properties and constraints of Red-yellow and Volcanic Ash soils planted to rootcrops through determination of the soils' various morphological, physical, and chemical properties. Some of the identified soil constraints associated with Red-Yellow and Volcanic Ash soils planted to rootcrops include : low organic matter, soil acidity, Al toxicity, low CEC, low amounts of exchangeable bases such as Ca, K, Mg, and Na, low P availability, high clay content, and highly compacted soils.

scholarly journals Analisis Kualitas Air Permukaan Rawa Gambut Rasau Bervegetasi Mangrove Di Desa Rantau Panjang Kabupaten Muaro Jambi

2020 ◽  
Vol 5 (2) ◽  
pp. 59
Author(s):  
Guntar Marolop S ◽  
Peppy Herawati
Keyword(s):  
Peat Soil ◽  
Physical Parameters ◽  
Chemical Parameters ◽  
Peat Soils ◽  
Water Parameters ◽  
Peat Swamp ◽  
Mangrove Vegetation ◽  
Physical And Chemical ◽  
The Village ◽  
Better Than

Peat soil is a type of soil that is formed from the accumulation of plant debris which undergoes a decomposition process. This is why peat soil contains high organic matter and is acidic. Peat soils will affect the parameters of a surrounding aquatic ecosystem, such as the Rasau peat swamp ecosystem in the village of Rantau Panjang. Peat swamp water parameters are influenced by substances stored in the peat such as having a low pH, high heavy metal content, and having high TSS, TDS, BOD and COD values. The water parameter of peat swamp with mangrove vegetation is better than that of peat swamp that does not have mangrove vegetation. This can be seen if the peat swamp water parameters are laboratory tested. The physical parameters of water, namely temperature, TDS, DHL, color, and turbidity were lower in the Rasau peat swamp with mangrove vegetation compared to the non-vegetated ones. The chemical parameters of the Rasau peat swamp with high density mangrove vegetation such as higher pH, and lower BOD, COD, and iron (Fe) when compared to peat swamps without mangrove vegetation. However, the physical and chemical parameters of vegetated and non-vegetated peat swamps are still above the PPRI No. 82 of 2001.

scholarly journals FERTILIZER AND STOCKING RATES ON TWO KING COUNTRY SOILS

1973 ◽  
pp. 63-76
Author(s):  
M.B. O'Connor ◽  
P.J. Tonkin ◽  
T.E. Ludecke
Keyword(s):  
Volcanic Ash ◽  
Management Practices ◽  
Chemical Properties ◽  
Soil Test ◽  
Stocking Rate ◽  
Fertilizer Rate ◽  
Physical And Chemical ◽  
Stocking Rates ◽  
Full Utilization ◽  
And Chemical Properties

Parent materials such as volcanic ash and sedimentary siltstone and sandstone form soils which differ markedly in their physical and chemical properties. In stocking x fertilizer rate trials on two families of soils, Te Kuiti-Tumutumu (volcanic ash) and Mahoenui-Mangatea (siltstonesandstone) , the former showed marked response to increasing rates of superphosphate in terms of pasture availability and animal production but -the latter showed negligible response above :the lowest rate (250 kg/ha). Responses to superphosphate were apparent on Te Kuiti-Tumutumu only at the high stocking rate. Sward composition showed no measurable improvement with the application of superphosphate. Manage ment practices were undoubtedly important in this respect. Differential 'topdressing should be practised where feasible. When soil test levels for phosphate are medium to low, Te Kuiti-Tumutumu soils should receive at least 500 kg/ha/yr of superphosphate, Mahoenui-Mangatea soils 250 kg/ha/yr. Stocking rates and management practices must be such as to allow full utilization of the additional pasture grown.

scholarly journals IMPACT OF EROSION PROCESS TO FERTILITY OFMOUNTAIN-CHERNOZEM SITUATING IN SOUTH-EAST SLOPE OF GREAT CAUCASIAN

2018 ◽  
Vol 5 ◽  
pp. 389-394
Author(s):  
Soltanzade Gasim Ali oglu
Keyword(s):  
Preventive Measures ◽  
Chemical Properties ◽  
Anthropogenic Factors ◽  
Sharp Change ◽  
Physical And Chemical Properties ◽  
Erosion Process ◽  
Set Up ◽  
Physical And Chemical ◽  
The Village ◽  
And Chemical Properties

The complexity, sharp change in the relief condition, the tension of the anthropogenic factors in the Shamakhi region, where we have investigated, has intensified the erosion process. Because of the lack of agrotechnical measures on the slopes, the erosion process has been intensified, the soil is flooded with soil, the physical and chemical properties of the soil have deteriorated, the nutritional elements have declined, the vegetation has been degraded and reached the limit of destruction. For some reason, the object of research was Shamakhi two land cuts were set up to determine the degree of actual erosion of the soil in the village of Melam. which will result in preventive measures to prevent erosion intensities and to develop and implement appropriate preventive measures

scholarly journals Utilization of Jebel Marra Volcanic Ash as Low Cost Material in Concrete Hollow Blocks in Darfur, Sudan

2021 ◽  
Vol 9 (2) ◽  
pp. 28-34
Author(s):  
Najmeldin I. Mohamed ◽  
El-Sharif M. Ibrahiem
Keyword(s):  
Compressive Strength ◽  
Volcanic Ash ◽  
Activity Index ◽  
Low Cost ◽  
Chemical Properties ◽  
Physical Analysis ◽  
Important Place ◽  
Substitution Level ◽  
Fired Bricks ◽  
Physical And Chemical

Concrete hollow blocks (CHB) have an important place in modern building industry, and although the CHB is considered a better alternative to fired bricks from the ecological and economical points of view, however, its prices are still high, since the main cost-factor is the ordinary Portland cement (OPC). This study is mainly focusing on the utilization of volcanic ash (VA) from Jebel Marra as a low cost material for CHB. In this study a VA sample from Jebel Marra (Al-malam area) was investigated for its physical and chemical properties, different substitution levels of 10, 20, 30, 40, and 50% of the OPC with pozzolanas were tested. Combined aggregates of locally available sand and stone aggregates were also tested for their economical value of fineness modulus. Then the potential use of these materials was implemented in (CHB) with different blends and mix ratios. The results of the chemical and physical analysis of the VA showed their compliance to the international specifications. The strength activity index of the mix containing 20%VA of the OPC weight at 28 days was 87%. If consider 3.5 MPa as the minimum compressive strength of load bearing CHB required by the Indian standard, it can be concluded that the VA can be used successfully as low cost material in the CHB with the substitution level up to 40%, 30%, and 20%, for binder aggregates ratio by volume 1:6, 1:7, and 1:8, respectively, with subsequent reduction in binder cost by 34, 26, and 17%, In addition, increasing the compressive strength of blocks can be achieved by using high pressure blocks making machine.  

scholarly journals Modified Humic Acid from Peat Soils with Magnetite (Ha-Fe3O4) by Using Sonochemical Technology for Gold Recovery

2020 ◽  
Vol 9 (2) ◽  
pp. 81-87
Author(s):  
Maya Rahmayanti ◽  
Sri Juari Santosa ◽  
Sutarno Sutarno
Keyword(s):  
Humic Acid ◽  
Peat Soil ◽  
Chemical Properties ◽  
Ultrasonic Waves ◽  
Gold Recovery ◽  
Peat Soils ◽  
Ftir Characterization ◽  
Physical And Chemical ◽  
And Chemical Properties

Sonochemical technology is a technology that involves ultrasonic waves in chemical reactions. In this study, humic acid isolated from peat soil has been successfully modified with magnetite (HA-Fe3O4) using sonochemical technology. Characterization of the physical and chemical properties of HA-Fe3O4 was carried out using FTIR, XRD, SEM and VSM. HA-Fe3O4 was used for recovery of gold from simulated gold waste (HAuCl4). FTIR characterization showed that the interaction between HA and Fe3O4 was through hydrogen bonds. The crystal size of HA-Fe3O4 using the Debye-Scherrer equation based on the XRD diffractogram was 12.4 nm. The saturation magnetization value of HA-Fe3O4 obtained was 52.80 emu/g. Adsorption studies at various pH showed that HA-Fe3O4 has been successful in recovering of gold from simulated gold waste. The % recovery of gold was 99%. Gold recovery occurs through the adsorption process followed by reduction of Au (III) to Au(0).

scholarly journals BEBERAPA SIFAT FISIK DAN KIMIA TANAH GAMBUT TERBAKAR DAN TIDAK TERBAKAR DI DESA SUNGAI BESAR KABUPATEN KETAPANG

2019 ◽  
Vol 7 (2) ◽  
Author(s):  
. Mintari ◽  
Dwi Astiani ◽  
Togar Fernando Manurung
Keyword(s):  
Peat Soil ◽  
Chemical Properties ◽  
Survey Method ◽  
Physical And Chemical Properties ◽  
Land Restoration ◽  
Peat Soils ◽  
High Conservation ◽  
Physical And Chemical ◽  
The Impact ◽  
And Chemical Properties

Peatlands is one of the ecosystem types in tropical rainforests. Peatland has very high conservation value and other functions such as the hydrological function carbon stocks, and biodiversity which is important for environmental comfort and animal life. The purpose of this study was to obtain information about the impact of fires on the physical and chemical properties of burning and non burning peat soils. This study carried out a field survey method with deliberate sampling (purposive sampling). The results showed that the physical and chemical properties of peat soil after a fire did not change, namely at soil temperature, air humidity was almost the same while the air temperature, soil moisture, pH, C-organic, depth, C/N (0-20 cm) has increased but not significantly. For the chemical properties of peat soil after fire there is an increase in the value of C-organic, CEC, phosphorus, sulfur,ash content, N-total depth (21-40 cm). this means that after fires the nutrients mostly affect peat soil. From the information on the nature of peat soil obtained in land restoration studies to use qualitative soil after burning.Keywords: Burn, chemical pea soil, Peatlands, Physicalpeat soil.

Statistical criteria of stellar population types

1966 ◽  
Vol 24 ◽  
pp. 101-110
Author(s):  
W. Iwanowska
Keyword(s):  
Stellar Population ◽  
Chemical Properties ◽  
Spectrophotometric Study ◽  
Physical And Chemical Properties ◽  
Population Type ◽  
The Galaxy ◽  
Distribution Parameters ◽  
Physical And Chemical ◽  
Statistical Criteria ◽  
And Chemical Properties

In connection with the spectrophotometric study of population-type characteristics of various kinds of stars, a statistical analysis of kinematical and distribution parameters of the same stars is performed at the Toruń Observatory. This has a twofold purpose: first, to provide a practical guide in selecting stars for observing programmes, second, to contribute to the understanding of relations existing between the physical and chemical properties of stars and their kinematics and distribution in the Galaxy.

Biophysical Measurement of Molecular Weight of Foot-and-Mouth Disease RNA Fragments

1974 ◽  
Vol 32 ◽  
pp. 262-263
Author(s):  
Sydney S. Breese ◽  
Howard L. Bachrach
Keyword(s):  
Chemical Properties ◽  
Foot And Mouth Disease ◽  
Mouth Disease ◽  
Distilled Water ◽  
Bovine Plasma ◽  
Mouth Disease Virus ◽  
Foot And Mouth ◽  
Carbon Coated ◽  
Rna Fragments ◽  
Physical And Chemical

Continuing studies on the physical and chemical properties of foot-and-mouth disease virus (FMDV) have included electron microscopy of RNA strands released when highly purified virus (1) was dialyzed against demlneralized distilled water. The RNA strands were dried on formvar-carbon coated electron microscope screens pretreated with 0.1% bovine plasma albumin in distilled water. At this low salt concentration the RNA strands were extended and were stained with 1% phosphotungstic acid. Random dispersions of strands were recorded on electron micrographs, enlarged to 30,000 or 40,000 X and the lengths measured with a map-measuring wheel. Figure 1 is a typical micrograph and Fig. 2 shows the distributions of strand lengths for the three major types of FMDV (A119 of 6/9/72; C3-Rezende of 1/5/73; and O1-Brugge of 8/24/73.

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