Decreased of Psycologic Problem during Pandemic Sars-Covid 2 in the Community

Calcareous soil that contains enough free calcium carbonate to effervesce visibly, releasing carbon-dioxide gas, when treated with diluted sulfuric acid. Analysis of calcareous soil in Jordan valley after treatment with aqueous low concentration sulfuric acid shows some change in the physical prosperities of the soil such as reduction of calcium carbonate from 66% to 30%, soil density from 1.60 g/cm3 to 1.19 g/cm3 . Soil texture is convert from silt clay loam to silt loam this physical changing makes soil permeability is easier so it could be suitable for agricultural without effect in plant growth also we show reduce soil PH and increasing in soil filtration tare. We showed several changes in the plants, which planted in the treated soil by sulfuric acid as increasing in the product from 10 - 25 %, would reduce in using chemical fertilizers from 15-30% and absence of soil diseases.

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Calcium Carbonate in a Calcareous Soil from the Jordan Valley, Israel: Its Origin as Revealed by the Stable Carbon Isotope Method

Soil Science Society of America Journal ◽

10.2136/sssaj1980.03615995004400050037x ◽

1980 ◽

Vol 44 (5) ◽

pp. 1059-1062 ◽

Cited By ~ 34

Author(s):

Mordeckai Magaritz ◽

Abraham J. Amiel

Keyword(s):

Calcium Carbonate ◽

Carbon Isotope ◽

Calcareous Soil ◽

Stable Carbon Isotope ◽

Stable Carbon ◽

Jordan Valley ◽

Isotope Method

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Nitrogen mineralization and microbial activity as influenced by sulfur sources in an alkaline calcareous soil

Journal of Scientific Agriculture ◽

10.25081/jsa.2019.v3.5423 ◽

1970 ◽

pp. 14-18

Author(s):

Tufail Shah ◽

Zahir Shah ◽

Syed Atizaz Ali Shah ◽

Nazir Ahmad

Keyword(s):

Organic Matter ◽

Sulfuric Acid ◽

Microbial Activity ◽

Calcareous Soil ◽

Bacterial Population ◽

Elemental Sulfur ◽

Microbial Population ◽

Organic Matter Content ◽

Matter Content ◽

Fungal Population

A study was performed to check the effects of various sources of sulfur on microbial activity, microbial population, N mineralization and organic matter content in an alkaline calcareous soil by using soil samples collected from Malakandher Farm at 0-20 cm depth, and analyzed for microbial activity, total mineral nitrogen, bacterial and fungal population and organic matter content. The results showed that the rate of CO2 evolution and cumulative CO2 production were higher in soils amended with elemental sulfur followed by sulfuric acid and gypsum treated soils. The microbial activity decreased with incubation period in all treatments, and the microbial population was greatly affected by sulfur sources. Generally, the bacterial population decreased in soils amended with elemental sulfur, but the population was higher in soils amended with gypsum. Bacterial population was suppressed in soils treated with sulfuric acid. However, the fungal population was higher in soils amended with sulfuric acids was less in soil amended with elemental sulfur. The sulfur amendments promoted immobilization of N. The net N immobilized was higher in soil amended with gypsum followed by soils amended with sulfuric acid and elemental sulfur. The percent organic matter was higher in soils amended with gypsum and was decreased compared with that amended with elemental sulfur or sulfuric acid. These results suggested that soil microbiological properties changed with sulfur amendments during laboratory incubation.

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Iron biofortification of wheat grains through integrated use of organic and chemical fertilizers in pH affected calcareous soil

Plant Physiology and Biochemistry ◽

10.1016/j.plaphy.2016.04.053 ◽

2016 ◽

Vol 104 ◽

pp. 284-293 ◽

Cited By ~ 27

Author(s):

Pia Muhammad Adnan Ramzani ◽

Muhammad Khalid ◽

Muhammad Naveed ◽

Rashid Ahmad ◽

Muhammad Shahid

Keyword(s):

Calcareous Soil ◽

Chemical Fertilizers ◽

Wheat Grains

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USE OF SULFURIC ACID TO PREVENT IRON CHLOROSIS IN GRAPEVINE GRAFTS ON CALCAREOUS SOIL.

Acta Horticulturae ◽

10.17660/actahortic.1998.477.21 ◽

1998 ◽

pp. 153-158

Author(s):

M.T. Nikolic ◽

R.A. Dzamic ◽

D.R. Stevanovic

Keyword(s):

Sulfuric Acid ◽

Calcareous Soil ◽

Iron Chlorosis

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Properties of Hard Rubber. XIV. Influence of Some Ingredients on Surface Deterioration in Sunlight

Rubber Chemistry and Technology ◽

10.5254/1.3543224 ◽

1946 ◽

Vol 19 (3) ◽

pp. 753-759

Author(s):

H. F. Church ◽

L. H. N. Cooper ◽

H. A. Daynes

Keyword(s):

Sulfuric Acid ◽

Calcium Carbonate ◽

Protective Effect ◽

Barium Sulfate ◽

Substantial Improvement ◽

Surface Resistivity ◽

Partial Recovery ◽

Inert Filler ◽

Derivatives Of ◽

Insulating Properties

Abstract Experiments have been made to find to what extent ingredients capable of reacting with sulfuric acid to form insoluble sulfates can prevent the loss of insulating properties of hard rubber on exposure to daylight. Hard rubbers containing small and large percentages of calcium and barium carbonates and litharge have been tested, along with a comparable unloaded material and one containing an inert filler, barium sulfate. In no case was there a substantial improvement. Although the basic fillers gave better results than the inert filler, the samples containing them were inferior to the unloaded sample. The partial recovery of insulating properties on removal from light after a low surface resistivity has been reached has been investigated. Appreciable recovery took place in all cases, but this was most marked with the sample containing calcium carbonate. It was anticipated that the basic ingredients examined would to some extent prevent the undesirable effects of acid forma- tion in cases where the exposure to light was not continuous or so severe as bright north daylight. Further experiments on this point are recommended. The value of benzidine as an ingredient which forms an insoluble sulfate was tested by treating the surface of hard rubber with aqueous and benzene solutions of this material. Appreciable improvement was observed in each case. Attempts to prepare vulcanizates containing benzidine or derivatives of it having the same protective effect were unsuccessful.

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Solidification of Greenhouse Gas Carbon Dioxide

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.472.879 ◽

2014 ◽

Vol 472 ◽

pp. 879-883

Author(s):

Wei Yin

Keyword(s):

Carbon Dioxide ◽

Calcium Carbonate ◽

Ambient Temperature ◽

Calcium Sulfate ◽

Exothermic Reaction ◽

Ammonium Bicarbonate ◽

Second Order Reaction ◽

Carbon Dioxide Gas ◽

Water Media ◽

Closed Reactor

The feasible routine of carbon dioxide solidification is developed, which employs carbon dioxide with calcium sulfate and ammonia to obtain calcium carbonate and ammonium sulfate at ambient temperature. The process of carbon dioxide solidification is a spontaneous and exothermic reaction, whose possesses the rate constants of the second order reaction, which can be attributed to carbon dioxide gas dissolving the water media and carbon dioxide reacted with ammonia to produce ammonium bicarbonate. Calcium sulfate changing rapidly into calcium carbonate accelerates the process of reaction of carbon dioxide reacted with ammonia. The optimization process parameters of carbon dioxide solidification are a 0.075-MPa of CO2, a 0.5-mol of CaSO4·2H2O, a 0.5-mol of NH3·H2O and a 100-ml of H2O in a closed reactor, which is able to obtain 100% CO2 gas solidification efficiency within 4 minutes at ambient temperature.

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Lowering of Calcareous Soil pH in Field-Grow Containers

Journal of Environmental Horticulture ◽

10.24266/0738-2898-8.1.1 ◽

1990 ◽

Vol 8 (1) ◽

pp. 1-4

Author(s):

G. Kidder ◽

M.J. Holsinger ◽

T.H. Yeager

Keyword(s):

Calcium Carbonate ◽

Soil Ph ◽

Calcareous Soil ◽

Fine Sand ◽

Iron Sulfate ◽

Trunk Diameter ◽

Application Rates ◽

Live Oak ◽

Ph Reduction ◽

One Year

Abstract Wettable sulfur (S) mixed with a Pineda fine sand (an Arenic Glossaqualf with 7.8 pH and 1.5% calcium carbonate equivalent) quickly acidified the soil, but the effect was lost within 8 weeks at low application rates and within 21 weeks at the highest rate (1 g S/kg soil or 1 lb S/1000 lb soil). Granular S mixed with the soil took one year to produce maximum pH reduction of 0.3, 0.4, and 0.9 pH units at 250, 500, and 1000 mg S/kg soil (1/4, 1/2, and 1 lb S/1000 lb soil), respectively . Wettable sulfur (S), surface-applied at 100 g/m2 (0.036 oz/10 ft2), lowered the pH of the upper 5 cm (2 in) of soil to the 5.6 to 5.8 range for one to two months before the pH returned to > 7.0; granular S took about five months to lower the pH to 6.7 but the soil pH was 6.2 two years after application. Wettable S at 20 g/kg soil (0.32 oz S/lb soil) in a small cylindrical zone resulted in a temporary depression of pH within the treated zone but had no effect on pH in other areas of the container. Mixing up to 1.0 g iron sulfate/kg soil (0.016 oz/lb soil) failed to reduce soil pH. Live-oak trunk diameter and plant height were not affected by any of the soil treatments in the two-year experiment.

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