scholarly journals Soil types and their relations with radon concentration levels in Middle Governorate of Gaza Strip, Palestine

2020 ◽  
Vol 53 (1) ◽  
pp. 55
Author(s):  
Khalid Fathi Ubeid ◽  
Khaled Ahmed Ramadan
Keyword(s):  
Radon Concentration ◽  
Sandy Loam ◽  
Soil Depth ◽  
Gaza Strip ◽  
Mechanical Analysis ◽  
Soil Samples ◽  
Loamy Sand ◽  
Positive Correlation ◽  
Loamy Sand Soil ◽  
Concentration Levels

<p>Determination of natural radioactivity has been carried out in surface and core agricultural soil samples collected from various sites in the Middle Governorate – Gaza Strip, Palestine. Mechanical and chemical analysis has been done to determine soil characteristics. Radon activity concentration measurements were carried out using solid state nuclear tracks detectors, Cr-39. The mechanical analysis results show that they belong to two classes, sandy loam and loamy sand. The sandy loam soil was observed in the eastern side of the study area, whereas the loamy sand was observed in western and middle parts. The radon concentration levels were higher in core samples and were proportionate to the soil depth. Also they were higher in sandy loam than loamy sand soil samples. The radon concentration levels had a positive correlation with fine grains (clay- to silt-size) of soil sample which translocated from upper to lower horizons of soil during its development. Additionally, there was a positive correlation with pH and water content, whereas a negative correlation was observed with organic matter and potassium contents. The positive correlation referred to a large specific surface of fine grains which were located in lower horizons of soil and were able to adsorb more water and consequently led to high radon concentration levels.</p>

scholarly journals A Study of Some Physical Properties of Two Different Soil Textures Planted with Conocarpus Trees (Conocarpuslancifolius. Engl)

2018 ◽  
Vol 7 (2) ◽  
pp. 133-145
Author(s):  
Nuhad S. S. AL- Wali ◽  
Kawthar A. AL- Mosawi
Keyword(s):  
Moisture Content ◽  
Bulk Density ◽  
Sandy Loam ◽  
Soil Depth ◽  
Penetration Resistance ◽  
Soil Samples ◽  
Silty Clay ◽  
Soil Penetration Resistance ◽  
Unplanted Soil ◽  
Mean Weight Diameter

This research has been conducted to study the effect of Conocarpus trees and their roots on some of soilphysical properties. The soil physical properties are moisture content , bulk density , total porosity , mean weight diameter (dry sieveing) and soil penetration resistance . Some soil samples are collected from two locations :the first location is Agric. College research, Garmat Ali, stations , Basra university , and the second location isZuwber province farm . The soil texture of the first location is silty clay which is classified as fine clay mixed Calcarioushy perthermictypictorrifluvent, while the soil texture of  the second location is sandy loam. This soil is classified with in species Entisol and under species psamments and high group , underhigh group and family (Typictorripsamments, Calcarious Mixed Hyperthermic).  The soil samples are collected from two soil depths( 0 – 30 and 30 – 60) from both locations are planted with Conocarpus trees, their ages ranged between 4 to 5 years . The trees height is 2.5 – 3.0 m . Another soil samples are also collected from unplanted soil  with Conocarpus trees. The results reveated that the silty clay soil is significantly surpassed the sandy loam soil in moisture content and mean weight diameter by a percentage of 68.76% and 32.91% respectively . Whereas, the bulk density and soil penetration resistance decreased , while the total porosity of the silty clay soil as compared with sandy loam soil .For unplanted soil, moisture content, the bulk density and the soil penetration resistance are increased as compared with planted soil . The soil depth (30 – 60)cm is surpassed soil depth of ( 0- 30)cm in giving higher values of moisture content andbulk density whereas it does not significantly affect the mean weight diameter and  soil penetration resistance .

scholarly journals The main plant mineral nutrition balance on using ecological fertilizers

2020 ◽  
Vol 27 (2) ◽  
Author(s):  
Auksė Burakova ◽  
Eugenija Bakšienė ◽  
Almantas Ražukas
Keyword(s):  
Sandy Loam ◽  
Positive Element ◽  
Loamy Sand ◽  
Organic Fertilizers ◽  
N Leaching ◽  
Agricultural Crop ◽  
Sand Soil ◽  
High Accumulation ◽  
Loamy Sand Soil ◽  
Element Balance

The experiments were performed in stationary cylindrical lysimeters, which were filled with soil typical of the Eastern Lithuanian region: sandy loam and loamy sand soil (Haplic Luvisol). In the experiment, the main aim was to investigate the balance of nitrogen (N), phosphorus (P) and potassium (K) in the sandy loam and loamy sand Haplic Luvisol and to evaluate their effectiveness and suitability for the light texture soil and agricultural crop harvest in organic agriculture. It was found that, in general, during the three years of the experiment, the balance of N in the sandy loam and loamy sand soil was negative, but fertilization with organic sapropel showed the positive results: less N leaching losses content, compared to other organic-organic fertilizers. Fertilization with cattle manure did not ensure the P positive element balance, in both types of soils, due to a small amount of P in the fertilizer and a high accumulation in the yield. The amount of potassium added each year with NPK fertilizer ensured a positive element balance only in the sandy loam soil.

scholarly journals Soil Quality Factors Affecting Garlic Production

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 445D-445
Author(s):  
Carl J. Rosen ◽  
David E. Birong
Keyword(s):  
Organic Matter ◽  
Microbial Biomass ◽  
Soil Quality ◽  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Loamy Sand ◽  
Sand Soil ◽  
Loamy Sand Soil ◽  
Biomass N ◽  
Loam Soil

Recent demand for high-quality garlic (Allium sativum L.) has prompted an interest in growing garlic as an alternative crop in the Upper Midwest. The overall objective of this study was to determine the effects of various amendments on garlic growth and selected soil quality indices in two contrasting soils. Garlic (Rocambole type) was planted in the fall of 1995 on a Kandota sandy loam (5% organic matter) and a Spartan loamy sand (1.5% organic matter). Three treatments replicated three times were tested: 1) a nonamended control, 2) manure compost, and 3) fertilizer application based on a soil test. Scapes were removed on half the plants in each plot and allowed to grow until harvest on the other half. Soil microbial biomass nitrogen (N) and carbon (C) were determined before planting and about 4 weeks after emergence. Within each site, the effect of soil amendments on garlic yield depended on scape removal. Garlic yield in nonamended soil was lowest when scapes were not removed. The effect of scape removal tended to diminish when compost or fertilizer was applied. Overall yields were 35% higher in the sandy loam soil compared to the loamy sand soil. Drought stress occurred during bulbing at both locations. Higher yields in the sandy loam soil were likely due to its higher water-holding capacity. Soil amendments did not consistently affect microbial biomass N and C; however, the sandy loam soil had 2 to 6 times higher biomass N and 3 to 4 times higher biomass C than the loamy sand soil and reflected the higher organic matter content of the sandy loam.

Response of lentil to Rhizobium inoculation and N fertilizer

1978 ◽  
Vol 90 (2) ◽  
pp. 325-327 ◽  
Author(s):  
H. S. Sekhon ◽  
J. N. Kaul ◽  
B. S. Dahiya
Keyword(s):  
Grain Yield ◽  
Sandy Loam ◽  
Maximum Yield ◽  
Loamy Sand ◽  
Rhizobium Inoculation ◽  
Loamy Sand Soil ◽  
Field Investigations ◽  
Loam Soil ◽  
Nitrogen Treatments ◽  
Yield Responses

SummaryField investigations were undertaken during the winters of 1971–6 to study the grain yield responses of lentil cultivars to seed inoculation with single and mixtures of Rhizobium strains. An effective symbiosis and consequent increase in the grain yield was associated with the efficacy of the strain. Inoculation with a superior strain produced 23–32 % more grain than no inoculation on loamy-sand soil and 46–90% more on sandy-loam soil.In separate studies comprising inoculation and nitrogen treatments, the seed treated with an effective Rhizobium strain gave on average 43% more yield than no inoculation and the application of 25 kg N/ha alone gave the same yield as inoculation. Rhizobium inoculation plus 20 kg N/ha was the best combination for maximum yield under both loamy-sand and sandy-loam soils.

scholarly journals Critical Analysis of the van Bemmelen Conversion Factor used to Convert Soil Organic Matter Data to Soil Organic Carbon Data: Comparative Analyses in a UK Loamy Sand Soil

2016 ◽  
Vol 6 (1) ◽  
pp. 35-44 ◽  
Author(s):  
Lee Heaton ◽  
Michael A. Fullen ◽  
Ranjan Bhattacharyya
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Conversion Factor ◽  
Soil Samples ◽  
Loamy Sand ◽  
Soil C ◽  
Loamy Sand Soil ◽  
Dry Combustion

Converting soil organic matter (SOM) data to soil organic carbon (SOC) data usually uses the van Bemmelen factor of 0.58 (or in reverse its reciprocal of 1.724) as a universal conversion factor. The accuracy of this conversion factor has been questioned. Under the Kyoto Protocol (1997) dry combustion is recommended to provide reproducible analyses to measure soil carbon stocks. However, dry combustion equipment is expensive and entails high maintenance. For rapid and inexpensive measurements, loss-on-ignition (LOI) is often used. A total of 278 loamy sand topsoil (0-5 cm depth) samples were taken during three soil sampling sessions (9 January 2007, 22 January 2009 and 10 October 2011) from runoff plots, splash erosion plots and grassed/cultivated plots on the Hilton Experimental Site, Shropshire, UK. A total of 124 soil samples were collected from both runoff and splash plots in both 2007 and 2009 (Bhattacharyya et al., 2011a). Some 22 of the collected samples in 2011 were from grassland (Ah horizon) and eight from cultivated soils (Ap horizon). Homogenized soil samples were split and SOM was determined on oven-dried samples by LOI and total SOC was determined by dry combustion. A conversion factor of 0.845 was used to obtain SOC from total soil C, following Rawlins et al. (2011). Results showed strong associations (R² = 0.70, P 0.001, n = 278) between SOM and SOC data. For all data, SOM to SOC conversion factors varied between 0.36-0.98, with a mean value of 0.66 (SD = 0.105). The mean values of the conversion factor were 0.64, 0.69 and 0.56, respectively, for the samples collected in 2007, 2009 and 2011. Results indicate the van Bemmelen factor (0.58) is a reasonable predictor, but both temporal and spatial variations occur around it within a specific soil type. Thus, caution should be exercised in SOM/SOC data conversions using the van Bemmelen factor.

scholarly journals Influence of organic fertilizers on potato yield and quality in different humidity years

2020 ◽  
Vol 27 (1) ◽  
Author(s):  
Auksė Burakova ◽  
Eugenija Bakšienė ◽  
Almantas Ražukas
Keyword(s):  
Sandy Loam ◽  
Starch Content ◽  
Soil Layer ◽  
Loamy Sand ◽  
Organic Fertilizers ◽  
Research Centre ◽  
Potato Tubers ◽  
Npk Fertilizers ◽  
Loamy Sand Soil ◽  
Loam Soil

The aim of the study was to evaluate the influence of organic fertilizers on the potato tubers yield and nutrient accumulation. Experiments were carried out at the Vokė Branch of the Lithuanian Research Centre for Agriculture and Forestry in 2016–2018. The experiments were performed in stationary concrete cylindrical 24 lysimeters on sandy loam and loamy sand Haplic Luvisol, with a surface area of 1.75 m2 and a test soil layer of 1.35 cm. Fertilization with three randomized replications on each side of lysimeters were the following: 1) control (no fertilizer); 2) NPK organic fertilizers (Provita, phosphorite powder, potassium magnesia); 3) 40 t ha–1 sapropel; 4) 60 t ha–1 manure. The results of the experiments suggest that 40 t ha–1 sapropel and 60 t ha–1 manure fertilizers increase potato tuber yields in both soils (sandy loam soil and loamy sand soil). Inserted NPK fertilizers produced the highest yield (in 2017 and 2019) of a small fraction of potato tubers. The findings suggest that during the drier period, in 2019, the accumulation of all elements increased about 0.7–7 times in both soils. The starch content in the tubers was dependent mostly on the meteorological conditions.

scholarly journals Fertilizing Drip-irrigated Bell Peppers Grown on Loamy Sand soil

1995 ◽  
Vol 5 (4) ◽  
pp. 291-294 ◽  
Author(s):  
Craig A. Storlie ◽  
Philip E. Neary ◽  
James W. Paterson
Keyword(s):  
New Jersey ◽  
Fruit Quality ◽  
Sandy Loam ◽  
Fertilization Rate ◽  
Fruit Weight ◽  
Loamy Sand ◽  
Loamy Sand Soil ◽  
Bell Peppers ◽  
Loam Soil ◽  
Marketable Fruit

The effects of fertilizer rates and application frequency on drip-irrigated bell peppers (Capsicum annuum L.) were evaluated at two sites in 1992 and one site in 1993 in southern New Jersey. Yield and fruit quality were greatest with 158N-69P-131K lb/acre at the site with a sandy loam soil. Yield and fruit quality responded to additional fertilizer at sites with loamy sand soils. Average marketable fruit weight increased with increasing fertilization rate at one of the two loamy sand sites. The incidence of sun scald decreased with increasing fertilization rate. Increasing the frequency of drip-applied fertilizer from 11 to 22 days did not affect yield or fruit quality in either year when the same amount of fertilizer was applied. These results show that maximizing the yield of bell peppers grown on loamy sand soils in New Jersey may require higher fertilization rates than previously recommended.

scholarly journals Studies on Different Forms of Sulphur in Alluvial Soil

2018 ◽  
Vol 10 (02) ◽  
pp. 107-114
Author(s):  
Shri Prakash Mishra ◽  
Anupam Pandey ◽  
Manish K. Srivastava
Keyword(s):  
Negative Correlation ◽  
Significant Positive Correlation ◽  
Soil Depth ◽  
Alluvial Soil ◽  
Uttar Pradesh ◽  
Soil Samples ◽  
Positive Correlation ◽  
Total Sulphur ◽  
Organic Sulphur

The present study was carried out in the Sadar Tehsil of Pratapgarh District of Uttar Pradesh to examine the different forms of sulphur (i.e., total sulphur, organic sulphur, NaH2PO4 extractable sulphur, heat soluble sulphur and 0.15%CaCl2 extractable sulphur) in its soil. For this purpose, soil samples at thedepth varying between 0 to 120 cm from 10 locations were collected. Theselocations are Bakulahi (S-1), Benipur (S-2), Chakbantod (S-3), Chaughar Pureanti (S-4), Chaukhad (S-5), Jagdishpur (S-6), Jahanaipur (S-7), Jahargo(S-8), Kaila Kala (S-9) and Khurdaha (S-10). It was observed that the totalsulphur content decreases with increasing the soil depth in all the samplinglocations. The similar trend was also observed in organic sulphur, Sodiumdihydrogen ortho phosphate (NaH2PO4) extractable sulphur, heat solublesulphur and 0.15% CaCl2 extractable sulphur.Correlation coefficient studies showed that total sulphur has significantand positive correlation with pH, EC, OC, CaCO3 and sand while negativecorrelation with clay and CEC. Organic sulphur correlated significantly andpositively with all parameters, except clay and CEC which showed negativecorrelation with it. The NaH2PO4 extractable sulphur showed significant positivecorrelation with pH, EC, OC and sand while negative correlation with CaCO3,clay and CEC. Heat soluble sulphur had significant positive correlation withall parameters, except CaCO3 and clay which showed negative correlation withit. The 0.15% CaCl2 extractable sulphur showed positive correlation with pH,EC, OC and sand while negative correlations with CaCO3, clay and CEC.

scholarly journals Determination of soil gas radon concentration from some locations of Gedarif town, Sudan, by using CR-39

2017 ◽  
Vol 32 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Abd-Elmoniem Elzain
Keyword(s):  
Radon Concentration ◽  
Soil Depth ◽  
Soil Samples ◽  
Soil Gas ◽  
World Health ◽  
Average Value ◽  
Can Technique ◽  
Soil Gas Radon ◽  
Health Organization ◽  
Radon Concentrations

This work presents the results of the study of radon concentration in soil gas for 187 measurements of soil samples collected from different locations of Gedarif town in Sudan using the can technique, containing CR-39. From in this work, the soil gas radon concentrations were ranged from 4.20 ? 0.61 kBqm-3 to 15.15 ? 1.62 kBqm-3 with an average of (9.10 ? 1.31) kBqm-3. The annual effective dose was calculated that ranged from 18.71 ? 2.73 mSv to 67.53 ? 7.22 mSv, with an average value of 40.57 ? 5.86 mSv. A good correlation was observed between the radon concentration and soil depth. It was found that soil radon gas concentration increased with depth. The radon concentrations in the soil samples were found to be larger than the allowed limit from the World Health Organization. The results of this work were compared with national and worldwide results.

Influence of Applied Phytosanitary Treatments and Climatic Crop Year on Zinc Content in Wines from Tohani Vineyard

2017 ◽  
Vol 68 (9) ◽  
pp. 2092-2097
Author(s):  
Catalina Calin ◽  
Gina Vasile Scaeteanu ◽  
Roxana Maria Madjar ◽  
Otilia Cangea
Keyword(s):  
Zinc Content ◽  
Soil Samples ◽  
Limit Set ◽  
Red Wines ◽  
Metallic Ions ◽  
Sauvignon Blanc ◽  
Before And After ◽  
Haze Formation ◽  
Zinc Levels ◽  
Concentration Levels

Metallic ions present a great importance in oenological practice and usually are present in wines in levels that are not hazardous. Among all metallic ions, zinc presents a great interest because may cause the persistence of the wine sour taste and by the side of Al, Cu, Fe and Ni, contribute to the haze formation and the change of color. The present study was focused on measuring the concentration levels of mobile zinc from vineyard soil before and after phytosanitary treatments and zinc content from white (Feteasca Alba - FA, Riesling Italian - RI, Sauvignon Blanc - SB, Tamaioasa Rom�neasca - TR), rose (Busuioaca de Bohotin - BB) and red (Feteasca Neagra - FN) wines within the wine-growing Tohani area, Romania. Other objective was to investigate of the influence of crop year and variety on zinc levels found in wine samples. Mobile zinc content for all analyzed soil samples is low ([1.5 mg/kg). Analyses indicated that zinc content found in wines was below 5 mg/L, limit set by Organisation Internationale of Vine and Wine (OIV). Also, it was found that red wines contain zinc in higher concentrations than white ones.

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