scholarly journals Physical and Chemical Characteristics of a Commercial Potting Substrate Amended with Vermicompost Produced from Two Different Manure Sources

2007 ◽  
Vol 17 (3) ◽  
pp. 336-340 ◽  
Author(s):  
Gary R. Bachman ◽  
James D. Metzger
Keyword(s):  
Electrical Conductivity ◽  
Beef Cattle ◽  
Nitrate Nitrogen ◽  
Chemical Characteristics ◽  
Air Volume ◽  
Alternative Materials ◽  
Calcium Magnesium ◽  
Physical And Chemical ◽  
Water Holding ◽  
Nitrogen Phosphorus

Interest in using alternative materials for potting substrate is increasing in response to availability and rising costs of peat and other conventional materials. Vermicompost (VC) is one such material. It is important to understand physical and chemical changes in potting substrate when amended with VC produced from different waste sources, pig (PVC) and beef cattle (BVC) manure in this study. Distribution of particles greater than 2 mm decreased, particles 0.5 to 1 mm increased, and particles less than 0.5 mm remained unchanged as PVC and BVC amendment increased. Dry bulk density and water-holding capacity increased with increasing PVC and BVC amendment. Porosity and air volume were inversely related to VC amendment, decreasing with increasing VC amendment. Saturated substrate extract sampling revealed nitrate nitrogen, phosphorus, calcium, magnesium, zinc, copper, iron content as well as electrical conductivity increased with increasing PVC and BVC amendment.

A comparison of the effects of post-mortem aging on breast meat from Cobb 500 and Hubbard ISA broilers

2018 ◽  
Vol 58 (10) ◽  
pp. 1922
Author(s):  
J. L. M. Mello ◽  
R. A. Souza ◽  
G. C. Paschoalin ◽  
F. B. Ferrari ◽  
B. M. Machado ◽  
...  
Keyword(s):  
Shear Force ◽  
Aging Process ◽  
Pectoralis Major Muscle ◽  
Control Group ◽  
Chemical Characteristics ◽  
Breast Meat ◽  
Fragmentation Index ◽  
Health Aging ◽  
Physical And Chemical ◽  
Water Holding

We compared the physical and chemical characteristics of the pectoralis major muscle from Cobb 500 and Hubbard ISA broilers and evaluated the effect of aging process for up to 7 days on meat quality. We used breast samples from male Cobb 500 (42 days of age; n = 60) and Hubbard ISA (85 days of age; n = 60) broilers. Twenty samples of each genotype were analysed 4 h post-slaughter (Control group). Another 20 samples of each genotype were aged in an incubator (2 ± 0.5°C) for 3 and for 7 days. Breast fillets were 23% heavier in the Cobb 500 group (306 g vs 248 g; P = 0.0009). Before aging, meat from Hubbard ISA broilers had higher (P < 0.001) water-holding capacity, which promotes the production of less exudate and possibly reduces nutritional losses during storage, which may be beneficial to the poultry industry. Despite being initially less tender, breast meat from Hubbard ISA broilers showed, during the aging process, a reduction (P < 0.05) of shear force (48.46–15.04 N), total collagen amount (6.0–4.8 g/kg) and myofibrillar fragmentation index (150.17–97.42) and had the same (P = 0.134) fat concentration (0.87 g/100 g) as that of breast meat from Cobb 500 broilers (0.93 g/100 g, respectively). Breast meat from Hubbard ISA broilers had a higher (P < 0.001) polyunsaturated fatty acid concentration, especially docosahexaenoic acid, which is beneficial to human health. Aging breast fillets for 3 days at 2°C is sufficient to tenderise the meat without reducing its juiciness, which suggests that the aging process can add value to free-range meat.

scholarly journals Impact of Cement Dust on Physical and Chemical Nutrients Properties of Forest Topsoil

2021 ◽  
Vol 25 (5) ◽  
pp. 695-700
Author(s):  
A.P. Adebiyi ◽  
H.O. Adigun ◽  
K.J. Lawal ◽  
K.D. Salami ◽  
V.A.L. Adekunle ◽  
...  
Keyword(s):  
Organic Matter ◽  
Chemical Properties ◽  
Exchange Capacity ◽  
Cement Dust ◽  
Sodium Calcium ◽  
Close Proximity ◽  
Calcium Magnesium ◽  
Magnesium Cation ◽  
Physical And Chemical ◽  
Nitrogen Phosphorus

: The study examined the impact of Cement dust on physical and chemical nutrients properties of forest topsoil in close proximity to a major private cement industry in Obajana, Kogi State, Nigeria using standard methods by collecting Topsoil samples for physical and chemical properties analyses which are particle size, moisture content, pH, carbon, nitrogen,phosphorus, potassium, sodium, calcium, magnesium, cation exchange capacity and organic matter.Data revealed a strong influence of the particulate pollutants on the forest topsoil in close proximity to the Cement factory. It was observed that the soil properties; moisture content and soil pH varied at distances away from the factory. The result showed that the Cement dust particles entering the soil increased the pH of the soil, it more alkaline. The highest pH (6.03) was observed from hundred and fifty meters sample indicating the highest particulate pollution. There were also variations in the other soil nutrient properties; carbon, nitrogen, phosphorus, potassium, sodium, calcium, magnesium, cation exchange capacity and organic matter arising from the effect of cement dust. High organic matter content was recorded in the location samples compared with the control sample. This is attributed to the addition of cement dust to the soils, resulting in improved organic-matter cycling and plant growth. The result also showed that the chemical properties; organic carbon (OC), organic matter (OM), phosphorus (P), potassium (K), sodium (Na), calcium (Ca) and magnesium (Mg) are significantly higher in the study areas than the control. The study therefore concludes that the emission of cement dust on the forest stands over the years was found to have significantly affected the topsoil properties.

scholarly journals The Effects of Neem Wood Ash on Soil Characteristics and Seedling Growth of Cowpea (Vigna unguiculata L. Walp)

2020 ◽  
pp. 41-50
Author(s):  
Sadaf Arshad ◽  
Muhammad Zafar Iqbal ◽  
Muhammad Shafiq ◽  
Mohammad Athar ◽  
Muhammad Kabir ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Organic Matter ◽  
Calcium Carbonate ◽  
Seedling Growth ◽  
Vigna Unguiculata ◽  
Wood Ash ◽  
Maximum Water ◽  
Physical And Chemical ◽  
Water Holding ◽  
Sodium And Potassium

The burning of wood in industrial activities discharge a large amount of wood ash and affecting on the environment. The effects of neem (Azadirachta indica A. Juss.) wood ash on seedling growth of cowpea (Vigna unguiculata L. Walp.) was recorded. The data reveals significant (p<0.05) effects of neem ash on the shoot length and seedling length of cowpea with the increase in the concentration of neem wood ash treatment up to 20%. The results also showed the significant (p<0.05) decrease in leaf weight ratio of cowpea as the wood ash concentration increase in substrate as compared to without ash treatment (control). The effects of neem wood ash treatment on physical and chemical characteristics of soil including organic matter (%), pH of soil, calcium carbonate (%), chloride (meq/L), maximum water holding capacity (%) of soil, electrical conductivity (mS/cm), bulk density (g/cm3), sodium and potassium content (µg/g) content of soil was found. The wood ash produced changes in physical and chemical soil characteristic viz. organic matter (%), pH of soil, water content (%), calcium carbonate (%), chloride (meq/L), maximum water holding capacity (%), electrical conductivity (mS/cm), bulk density (g/cm3), sodium and potassium content (µg/g) content of soil. Wood ash treatment affected physical and chemical poperies of soil which in turn results decreased seedling growth performance of cow pea.

scholarly journals Potential of Pinus elliottii Engelm. needles as substrate conditioner for the production of “Fepagro C37 reck”Citrus rootstocks”

2019 ◽  
Vol 41 (3) ◽  
Author(s):  
Henrique Ceccagno ◽  
Vitor Dutra de Souza ◽  
Gilmar Schäfer ◽  
Eduarda Demari Avrella ◽  
Claudimar Sidnei Fior
Keyword(s):  
Electrical Conductivity ◽  
Water Retention ◽  
Pinus Elliottii ◽  
Chemical Characteristics ◽  
Porous Space ◽  
In Situ Decomposition ◽  
Substrate Mixtures ◽  
Physical And Chemical ◽  
Reduced Water

Abstract The production of citrus seedlings in protected environment requires a large amount of substrate, which must have adequate physical and chemical characteristics. The use of acidic conditioners, such as Pinus needles mixed with alkaline substrates, allows the cultivation of seedlings with better quality. The objective of this work was to evaluate the development of the “Fepagro C37 Reck” rootstock grown in different alkaline commercial substrate mixtures (Humosolo ES®) with Pinus elliottii needles. The experiment was carried out by testing alkaline substrate mixed with 5-month old of decomposition Pinus needles in situ decomposition and two granulometry sizes, 3.5 and 8.0 mm. The mixtures were performed in proportions between the needles with the Humosolo, (v / v) 0%; 25%; 50%; 75% and 100%. Expanded cellular polystyrene trays were used to accommodate the mixtures and seeding of the rootstock. Physical and chemical evaluateons of the mixtures were carried out, as well as the development of the seedlings. The use of Pinus needles acidified the substrate Humosolo ES®, reduced its electrical conductivity and increased the percentage of porous space of the mixtures and reduced water retention. The treatments containing 25 and 50% of the Pinus needles mixture, regardless of the granulometry, provide greater development of rootstock plants “Fepagro C37 Reck”.

scholarly journals Karakteristik Sosis dengan Fortifikasi β-Caroten dari Labu Kuning (Cucurbita moschata) (Sausage Characteristics as Affected by β-Caroten Fortification of Pumpkin (Cucurbita moschata))

2012 ◽  
Vol 33 (2) ◽  
pp. 111
Author(s):  
Agus Hadi Prayitno ◽  
Firdha Miskiyah ◽  
Afina Viyunnur Rachmawati ◽  
Tombak Mahesa Baghaskoro ◽  
Bekti Putra Gunawan ◽  
...  
Keyword(s):  
Ph Value ◽  
Physical Characteristics ◽  
Sensory Characteristics ◽  
Chemical Characteristics ◽  
Cucurbita Moschata ◽  
Physical Chemical ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Physical And Chemical ◽  
Water Holding

<p>The objectives of the experiment were to evaluate physical, chemical, and sensory characteristics of sausage by using fortification with β-caroten of pumpkin. There were five treatments of fortification with β-caroten of pumpkin as<br />the filler substitutions on sausage processing. The treatments were: 0% (control), 25, 50, 75, and 100% of the filler. There were five replications in each treatment. The data of physical and chemical characteristics from the completely randomized design were analysed by analysis of variance. The data of sensory characteristics were analysed by the analysis of non parametric test of Hedonic Kruskal-Wallis. The results showed that sausage fortified with β-caroten of pumpkin as the filler substitutions up to 100% level on sausage processing affected significantly (P&lt;0.01) on physical characteristics of sausage (decreased water-holding capacity, increased tenderness and it did not affect pH value of sausage), chemical characteristics of sausage (decreased moisture, increased protein, fiber, β-caroten, and it did not affect the fat content of sausage), and sensory characteristics of sausage (increased taste, decreased color, aroma, texture, touchness, and acceptability of sausage).</p><p>(Key words: Sausage, Pumpkin, β-caroten, Physical characteristics, Chemical, Sensory)<br /><br /></p>

scholarly journals (73) Effect of Media on Growth of Euphorbia pulcherima `White Star'

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1019D-1020
Author(s):  
Ajay Nair ◽  
Donglin Zhang ◽  
Stephanie Burnett
Keyword(s):  
Nitrate Nitrogen ◽  
Nutrient Status ◽  
Day Length ◽  
Nutrient Concentrations ◽  
Canopy Area ◽  
Calcium Magnesium ◽  
The Media ◽  
Sodium Sulfur ◽  
Nitrogen Phosphorus ◽  
White Star

Euphorbia pulcherima Willd. ex Klotzsch (poinsettia) are grown commercially in all 50 states. This experiment was conducted to find a suitable media for cultivating `White Star' poinsettia under natural day-length conditions in Orono, Maine. The growth, morphology, and foliar and substrate nutrient concentration of `White Star' poinsettia was evaluated in three different media formulations (Promix®, Metromix-560®, and a 1:1 v/v mixture of Promix® and Metromix-560®). Results indicated minimal variability in overall plant height, but there were significant differences in the canopy area. Canopy area was greatest for plants grown in Promix® followed by a combination of Promix® and Metromix-560®. Plants grown in Promix® recorded the highest fresh weight (170.6 g). Bract area was statistically insignificant among the three treatments. Nutrient status of the media varied widely and was significant for nitrate–nitrogen, phosphorus, soluble salts, iron, calcium, magnesium, manganese, sodium, sulfur, and zinc. Foliar analysis revealed that nutrient concentrations also significantly differed across treatment media. Optimum media pH for growing poinsettia ranges from 6.0 to 7.5. Media pH for Promix® was 5.9, which was significantly higher than Metromix-560® (4.65) and Promix® + Metromix-560® (1:1 v/v; 5.3). In spite of significant differences in foliar and substrate nutrient concentrations, overall plant growth remained the same.

Physical and chemical characteristics of spent hen breast meat aged for 7 days

2017 ◽  
Vol 57 (10) ◽  
pp. 2133 ◽  
Author(s):  
J. L. M. Mello ◽  
R. A. Souza ◽  
G. C. Paschoalin ◽  
F. B. Ferrari ◽  
M. P. Berton ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Polyunsaturated Fatty Acids ◽  
Shear Force ◽  
Poultry Meat ◽  
Chemical Characteristics ◽  
Breast Meat ◽  
Fragmentation Index ◽  
Physical And Chemical ◽  
Water Holding

Consumption of poultry meat is increasing worldwide. However, little is known about the consumption and acceptability of meat from older hens and about the physical and chemical characteristics of this type of meat. This study evaluated the effect of broiler age and aging time on the physical properties, tenderness, chemical composition, and lipid profile of breast meat from broilers slaughtered at 6 (commercial age) and 70 weeks of age (broiler hens). The variables analysed were: colour, pH, water-holding capacity, cooking weight loss, shear force, total collagen, myofibrillar fragmentation index, chemical composition, total cholesterol, lipid oxidation, and fatty acid profile. Compared with commercial broilers, meat from broiler hens had higher shear force (from 33.45 N to 14.91 N after 3 days of aging), higher fat content, and lower cholesterol concentration. Additionally, it had more monounsaturated fatty acids and less polyunsaturated fatty acids than meat from commercial broilers. Collagen, fat, cholesterol levels and myofibrillar fragmentation index decreased with aging. The use of broiler hen meat as a raw material may be beneficial to the poultry industry because it has more fat and less cholesterol, higher intracellular water-holding capacity, and lower cooking loss than meat from commercial broilers. Moreover, because of the lower concentration of polyunsaturated fatty acids, broiler hen meat is less susceptible to lipid oxidation. Aging breast fillets for 3 days at 2°C is sufficient to tenderise the meat and reduce the amount of fat and cholesterol, suggesting that aging can be used as a technique to add value to poultry meat products.

scholarly journals Physico-Chemical Analysis of SriChamSugar’s Mill Effluent Water of Bharathi Nagara (Karnataka)

2020 ◽  
Vol 7 (3) ◽  
pp. 15-19
Author(s):  
P Nagendra ◽  
S Madan Kumar ◽  
B S Ravi
Keyword(s):  
Waste Water ◽  
Electrical Conductivity ◽  
Chemical Characteristics ◽  
Food Crops ◽  
Sugar Mill ◽  
Effluent Water ◽  
Oil And Grease ◽  
Sodium Potassium ◽  
Physico Chemical ◽  
Calcium Magnesium

Sugar industries have an essential place in Indian economic development. However, the waste water generated from these industries poses a significant threat to the environment as well as irrigated land. If untreated effluents are used in irrigation, they might contaminate food crops and, if they are released into water bodies, they might also be dangerous to the survival of the aquatic ecosystem. The Physico-chemical characteristics of the content in the effluents from Sri Cham Sugars Private Limited, Bharathi nagara Sugar mill have been explored. Physico-chemical characteristics included color, odor, temperature, pH, BOD, COD, TDS, TS, DO, Chloride, Sulphate, Nitrate, Calcium, Magnesium, Sodium, Potassium, oil and grease, Electrical conductivity of the effluent collected from the different sites at discharge point in different months have been determined.

scholarly journals Quality of Heliconia psittacorum seedlings grown on different substrates

2016 ◽  
Vol 21 (3) ◽  
pp. 387
Author(s):  
Raimundo Luiz Laurinho dos Santos ◽  
José Antonio Saraiva Grossi ◽  
Rogério Gomes Pêgo ◽  
José Geraldo Barbosa
Keyword(s):  
Electrical Conductivity ◽  
Chemical Characteristics ◽  
Physical Analysis ◽  
High Electrical Conductivity ◽  
Coconut Husk ◽  
The Matrix ◽  
Main Component ◽  
Physical And Chemical ◽  
All Treatment

The production of good seedlings depends on the quality of the matrix and propagation techniques used. In choosing a substrate should be particularly observed physical and chemical characteristics. The objective of this study was to assess the development and vigor of heliconia seedlings from Heliconia psittacorum species, grown on different substrates and mixtures. The materials that form the treatments were: burnt rice husk (RHB), vermiculite (VC), sugarcane waste burnt (SWB), subsoil (S), chicken bedding (CB), cattle manure (CM), earthworm humus (EH), coconut husk powder (CSP) and Horticultural Plantmax (HP). The treatments chosen were: 1( ⅔ CM + ⅓ CSP), 2( ⅔CM + ⅓RHB), 3( ⅔CB + ⅓ SWB), 4(CSP), 5(½VC+ ½SWB), 6(⅔ S + ⅓ CB), 7(⅓CM + ⅔SWB), 8(⅔ CM + ⅓SWB), 9(⅔CB + ⅓RHB), 10(⅓CM + ⅔RHB), 11(⅓CB + ⅔SWB), 12(⅔CB + ⅓CSP), 13(⅔EH + ⅓CSP), 14(⅔EH + ⅓SWB), 15(⅓CB + ⅔RHB), 16(⅓EH + ⅔SWB), 17(⅔EH + ⅓RHB), 18( ½VC + ½RHB), 19(S), 20(⅔ S + ⅓ CM), 21(⅔ S + ⅓ EH), 22(EH), 23(HP), 24(⅓EH + ⅔RHB). Samples of all treatment compositions were taken and carried out chemical and physical analysis. A set of ten treatments (1, 2, 5, 7, 8, 10, 14, 16, 20 and 22) basically consisting of CM EH, RHB, CSP and SWB produced the best seedlings and treatment with CB as a main component or not produced the worst seedlings due to high electrical conductivity

scholarly journals БЕЗКОНТАКТНИЙ МЕТОД ТРИПАРАМЕТРОВОГО ВИМІРЮВАЛЬНОГО КОНТРОЛЮ ФІЗИКО-ХІМІЧНИХ ХАРАКТЕРИСТИК ЗРАЗКА ФЕРОМАГНІТНОЇ РІДИНИ

2018 ◽  
Vol 124 (4) ◽  
pp. 77-84
Author(s):  
В. В. Себко ◽  
В. Г. Здоренко
Keyword(s):  
Electrical Conductivity ◽  
Magnetic Permeability ◽  
Electromagnetic Method ◽  
Specific Electrical Conductivity ◽  
Parameter Method ◽  
Chemical Characteristics ◽  
Parameter Control ◽  
Relative Magnetic Permeability ◽  
Physical And Chemical ◽  
Measuring Control

The aim of the article is to investigate the method of three-parameter control of a sample of a ferromagnetic liquid, the realization of which is carried out on the basis of a noncontact transformer electromagnetic converter (TEC) with samples of ferromagnetic liquids in a longitudinal magnetic field.We used a technique for studying samples of a ferromagnetic liquid for the realization of a three-parameter electromagnetic method for measuring the physical and chemical characteristics of ferromagnetic liquids based on thermal TEC. The three-parameter method of measuring control of the relative magnetic permeability mr, the specific electrical conductivity σ, and the temperature t of a sample of a ferromagnetic liquid, which is monitored on the basis of measurements and analysis of signals of a thermal contactless three-parameter TEC, is studied. The theoretical principles of the operation of a contactless thermal TEC with a sample of a ferromagnetic liquid are based on the realization of a three-parameter method for measuring the monitoring of magnetic, electrical, and temperature parameters.

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