scholarly journals Growth Response of Annual Transplants and Physical and Chemical Properties of Growing Media as Influenced by Composted Sewage Sludge Amended with Organic and Inorganic Materials

1984 ◽  
Vol 2 (4) ◽  
pp. 112-116
Author(s):  
Delbert D. Hemphill ◽  
Robert L. Ticknor ◽  
D.J. Flower
Keyword(s):  
Sewage Sludge ◽  
Pore Space ◽  
Chemical Properties ◽  
Inorganic Materials ◽  
Growing Media ◽  
High Yields ◽  
Physical And Chemical ◽  
Water Holding ◽  
Inorganic Components ◽  
Composted Sewage Sludge

Composted sewage sludge was combined with several other organic and inorganic components to form 19 growing media. Increasing the proportion of sludge compost in media from 25 to 50% increased media pH, electrical conductivity (EC), airfilled pore space (AS), and nutrient levels, and usually increased growth of pansy, snapdragon, and cabbage plants. Of the other organic components, sawdust-based media had the highest pH, EC, and AS; sphagnum peat-based media the highest water holding capacity. Plant fresh weights were highest with bark, which produced media with highest retention of K, Ca, Mg, and Na. Of the inorganic components, pumice produced media with lower AS and lower yields of each crop than did perlite or vermiculite. Inorganic components had no effect on media pH or EC. Yields of all crops were usually higher in media containing compost than in 5 commercial potting mixes but less than in a fertilizer-amended bark medium. High yields appeared to be associated with higher medium AS and higher initial levels of major and minor plant nutrients.

Soils of Thotapalli Major Irrigation Project of North- Coastal Andhra Pradesh: Physical and Chemical Properties

Agropedology ◽  
2019 ◽  
Vol 29 (1) ◽  
Author(s):  
K. Himabindu ◽  
◽  
P. Gurumurthy ◽  
P.R.K. Prasad ◽  
◽  
...  
Keyword(s):  
Andhra Pradesh ◽  
Pore Space ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Clay Loam ◽  
Irrigation Project ◽  
Maximum Water ◽  
Physical And Chemical ◽  
Water Holding ◽  
And Chemical Properties

Physical and chemical properties of the soils were assessed for the ayacut area of Thotapalli major irrigation project of North-Coastal Andhra Pradesh. Six representative soil pedons were studied in Devarapalli, Gujjangivalasa, Patikivalasa, Gangada, Aamiti and Maddivalasa villages falling in ayacut area of Thotapalli major irrigation project. The soil texture ranged from sandy loam to sandy clay loam in upland pedons while sandy clay loam to clay in pedons under cultivated plains. In general, relatively low bulk density was recorded at surface horizons compared to sub-surface layers. Maximum water holding capacity, pore space and volume expansion increased with soil depth. The soils were acidic to alkaline in reaction, non-saline, low to medium in organic carbon content. The CEC ranged from 6.4 to 32.5 cmol (p+) kg-1. The soil exchange complex was dominated by calcium followed by magnesium, sodium and potassium. The soils were found to be low in nitrogen, low to medium in phosphorus and medium to high in available potassium status. Manganese and copper were sufficient but zinc and iron were deficient in soils. The total silica (SiO2) content of pedons varied from 48.10 to 71.40 per cent. Sesquioxide (R2O3) and the molar ratio of SiO2 / R2O3 ranged from 19.01 to 32.4 per cent and varied from 3.74 to 6.59, respectively in different pedons. The SiO2 / Al2O3 ratio and the SiO2 / Fe2O3 ratio varied from 4.43 to 7.65 and from 13.7 to 47.8, respectively. A significant positive correlation of clay content with cation exchange capacity (CEC), maximum water holding capacity (MWHC) was observed. Sand content was positively correlated with silica and negatively correlated with MWHC and volume expansion. Soil organic carbon had a significant positive correlation with soil pore space, available nitrogen, phosphorous, potassium, zinc, manganese, copper and iron, but a negative correlation with soil bulk density. Soil pH was positively correlated with CaCO3 but negatively correlated with available phosphorous, potassium, zinc, manganese, and copper and iron. Soil CaCO3 content was negatively correlated with available phosphorous, potassium, zinc, manganese, copper and iron of the soil.

scholarly journals Source Variation in Physical and Chemical Properties of Coconut Coir Dust

HortScience ◽  
1996 ◽  
Vol 31 (6) ◽  
pp. 965-967 ◽  
Author(s):  
Michael R. Evans ◽  
Sreenivas Konduru ◽  
Robert H. Stamps
Keyword(s):  
Pore Space ◽  
Cocos Nucifera ◽  
Chemical Properties ◽  
Dry Weight ◽  
The Philippines ◽  
Dust Sources ◽  
Electrical Conductivities ◽  
Coir Dust ◽  
Physical And Chemical ◽  
Water Holding

Physical properties differed significantly among five Philippine-produced coconut (Cocos nucifera L.) coir dust sources. Bulk densities ranged from 0.04 to 0.08 g·cm–3. Air-filled pore space, water-filled pore space, and total pore space ranged from 9.5% to 12.6%, 73.0% to 80.0%, and 85.5% to 89.5% (v/v), respectively. Total solids accounted for 10.5% to 14.5% of total volume, and water-holding capacities ranged from 750% to 1100% of dry weight. Significant differences existed in particle size distribution, with the largest differences occurring for particle sizes <8.0 mm and 0.25 to 0.50 mm in diameter. Chemical properties were determined for 12 sources from the Philippines, Sri Lanka, or Indonesia. The pH and electrical conductivities ranged from 5.6 to 6.9 and 0.3 to 2.9 mS·cm–1, respectively, and were significantly different among sources. No significant differences occurred among samples with respect to Fe, Mn, Zn, B, Cu, NH4-N, and Mg concentrations. Coir dust samples contained Fe, Mn, Zn, B, and Cu at 0.01 to 0.07 mg·L–1. The levels of NH4-N and Mg were 0.1 to 0.2 and 1.0 to 7.4 mg·L–1, respectively. Significant differences occurred between sources for Ca, Na, and NO3-N, with levels (mg·L–1) ranging from 1.0 to 24.3, from 22.3 to 88.3, and from 0.4 to 7.0, respectively. The widest ranges occurred in K (19 to 948 mg·L–1) and Cl (26 to 1636 mg·L–1). Sources differed with respect to cation exchange capacities, with values ranging from 38.9 to 60.0 meq/100 g.

scholarly journals Soils of Thotapalli Major Irrigation Project of North- Coastal Andhra Pradesh: Physical and Chemical Properties

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
K. Kirmani ◽  
◽  
P. Gurumurthy ◽  
P.R.K. Prasad ◽  
◽  
...  
Keyword(s):  
Andhra Pradesh ◽  
Pore Space ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Clay Loam ◽  
Irrigation Project ◽  
Maximum Water ◽  
Physical And Chemical ◽  
Water Holding ◽  
And Chemical Properties

Physical and chemical properties of the soils were assessed for the ayacut area of Thotapalli major irrigation project of North-Coastal Andhra Pradesh. Six representative soil pedons were studied in Devarapalli, Gujjangivalasa, Patikivalasa, Gangada, Aamiti and Maddivalasa villages falling in ayacut area of Thotapalli major irrigation project. The soil texture ranged from sandy loam to sandy clay loam in upland pedons while sandy clay loam to clay in pedons under cultivated plains. In general, relatively low bulk density was recorded at surface horizons compared to sub-surface layers. Maximum water holding capacity, pore space and volume expansion increased with soil depth. The soils were acidic to alkaline in reaction, non-saline, low to medium in organic carbon content. The CEC ranged from 6.4 to 32.5 cmol (p+) kg-1. The soil exchange complex was dominated by calcium followed by magnesium, sodium and potassium. The soils were found to be low in nitrogen, low to medium in phosphorus and medium to high in available potassium status. Manganese and copper were sufficient but zinc and iron were deficient in soils. The total silica (SiO2) content of pedons varied from 48.10 to 71.40 per cent. Sesquioxide (R2O3) and the molar ratio of SiO2 / R2O3 ranged from 19.01 to 32.4 per cent and varied from 3.74 to 6.59, respectively in different pedons. The SiO2 / Al2O3 ratio and the SiO2 / Fe2O3 ratio varied from 4.43 to 7.65 and from 13.7 to 47.8, respectively. A significant positive correlation of clay content with cation exchange capacity (CEC), maximum water holding capacity (MWHC) was observed. Sand content was positively correlated with silica and negatively correlated with MWHC and volume expansion. Soil organic carbon had a significant positive correlation with soil pore space, available nitrogen, phosphorous, potassium, zinc, manganese, copper and iron, but a negative correlation with soil bulk density. Soil pH was positively correlated with CaCO3 but negatively correlated with available phosphorous, potassium, zinc, manganese, and copper and iron. Soil CaCO3 content was negatively correlated with available phosphorous, potassium, zinc, manganese and copper and iron of the soil.

scholarly journals Growth Response of Photinia and Thuja and Nutrient Concentration in Tissues and Potting Medium as Influenced by Composted Sewage Sludge, Peat, Bark and Sawdust in Potting Media

1985 ◽  
Vol 3 (4) ◽  
pp. 176-180
Author(s):  
R.L. Ticknor ◽  
D.D. Hemphill ◽  
D.J. Flower
Keyword(s):  
Sewage Sludge ◽  
Pore Space ◽  
Peat Moss ◽  
Commercial Media ◽  
Potting Medium ◽  
Initial Ph ◽  
Potting Media ◽  
Photinia X Fraseri ◽  
Water Holding ◽  
Composted Sewage Sludge

Composted sewage sludge was blended with pumice and either bark, peat moss, or sawdust to form 6 potting media. Increasing the proportion of compost in media from 25 to 50% caused increased initial pH, electrical conductivity (EC), and airfilled pore space (AS) in all media, and increased growth of Photinia x fraseri Dress. and Thuja occidentalis L. ‘Pyramidalis.’ Sawdust-containing media had the highest pH, EC, and AS; sphagnum peat-containing media the highest water holding capacity and greatest shrinkage; bark-based media the highest bulk density. Plant growth in compost-based media containing peat or bark was equal to or better than that in two commercial media composed primarily of bark or peat.

scholarly journals Nitrous oxide emission from conservation forest of Kampar Peninsula peatland ecosystem

2021 ◽  
Vol 11 (3) ◽  
pp. 442-452
Author(s):  
Nardi ◽  
Syaiful Anwar ◽  
Mohamad Yani ◽  
Nurholis ◽  
Muhammad Hendrizal
Keyword(s):  
Nitrous Oxide ◽  
Pore Space ◽  
Chemical Properties ◽  
N2o Emission ◽  
Data Availability ◽  
Physical And Chemical Properties ◽  
Swamp Forest ◽  
Main Factors ◽  
Physical And Chemical ◽  
And Chemical Properties

Nitrous oxide (N2O) is a long-lived greenhouse gas with a warming potential of 300 times higher than CO2. Conserving of intact peat swamp forest can hold the natural physical and chemical properties of the soil, such that the N2O emission occurs naturally. To quantify N2O emission from peatland ecosystems, data availability is highly needed. The objectives of this study were to quantify the emission of N2O and determine the main factors controlling N2O emission from peatland conservation forests. This research was conducted from January to December 2020 in the Kampar Peninsula, Pelalawan Regency, Riau Province. This study found that N2O emission at peatland conservation forest was 0.23 ± 0.19 kg-N/ha/year. Substantial changes in soil and environmental factors such as water table, soil temperature, soil moisture, water-filled pore space, NH4-N, and NO3-N significantly affect the exchange of N2O between peatlands and the atmosphere.

Effect of integrated nutrient management on physical and chemical properties of soil

2016 ◽  
Vol 35 (1) ◽  
Author(s):  
Suman Meena ◽  
Narendra Swaroop ◽  
Joy Dawson
Keyword(s):  
Nutrient Management ◽  
Particle Density ◽  
Sandy Loam ◽  
Pore Space ◽  
Block Design ◽  
Chemical Properties ◽  
Available Nitrogen ◽  
Randomized Block Design ◽  
Loam Soil ◽  
Physical And Chemical

A field experiment was conducted during <italic>Kharif</italic> season 2014 at the Research farm of Soil Science Allahabad School of Agriculture, laid out in randomized block design on sandy loam soil, containing sand 62.71%, silt 23.10% and clay 14.19% (Inceptisols). It was observed that for post harvest soil properties in treatment N<sub>20</sub>+ FYM @ 10 t ha<sup>−1</sup> and <italic>Rhizobium</italic> P<sub>40</sub>K<sub>40</sub> were improved significantly due to integrated use of inputs. Organic carbon-0.75%, available nitrogen- 333.23 kg ha<sup>−1</sup>, phosphorus- 34.58 kg ha<sup>−1</sup>, potassium -205.83 kg ha<sup>−1</sup>, pore space -50.80 %, pH -6.80 were found to be significant and bulk density -1.07 Mgm<sup>−3</sup>, particle density -2.62 Mgm<sup>−3</sup>, EC at 27°C -0.24 dSm<sup>−1</sup> were found to be non-significantly improved in this treatment.

scholarly journals Effect of homogenization and ultrasonication on the physical properties of insoluble wheat bran fibres

2015 ◽  
Vol 29 (4) ◽  
pp. 423-432 ◽  
Author(s):  
Ran Hu ◽  
Min Zhang ◽  
Benu Adhikari ◽  
Yaping Liu
Keyword(s):  
High Pressure ◽  
Cation Exchange ◽  
Wheat Bran ◽  
High Intensity ◽  
Dietary Fibre ◽  
Chemical Properties ◽  
High Pressure Homogenization ◽  
Insoluble Dietary Fibre ◽  
Physical And Chemical ◽  
Water Holding

AbstractWheat bran is rich in dietary fibre and its annual output is abundant, but underutilized. Insoluble dietary fibre often influences food quality negatively; therefore, how to improve the physical and chemical properties of insoluble dietary fibre of wheat bran for post processing is a challenge. Insoluble dietary fibre was obtained from wheat bran and micronized using high-pressure homogenization, high-intensity sonication, and a combination of these two methods. The high-pressure homogenization and high-pressure homogenization+high-intensity sonication treatments significantly (p<0.05) improved the solubility, swelling, water-holding, oil-holding, and cation exchange capacities. The improvement of the above properties by high-intensity sonication alone was marginal. In most cases, the high-pressure homogenization process was as good as the high-pressure homogenization+high-intensity sonication process in improving the above-mentioned properties; hence, the contribution of high-`intensity sonication in the high-pressure homogenization+high-intensity sonication process was minimal. The best results show that the minimum particle size of wheat bran can reach 9 μm, and the solubility, swelling, water-holding, oil-holding, cation exchange capacities change significantly.

An examination of physical and chemical properties of urban biochar for use as growing media substrate

2016 ◽  
Vol 84 ◽  
pp. 49-58 ◽  
Author(s):  
Bhawana Bhatta Kaudal ◽  
Deli Chen ◽  
Dinesh Babu Madhavan ◽  
Adriana Downie ◽  
Anthony Weatherley
Keyword(s):  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Growing Media ◽  
Physical And Chemical ◽  
And Chemical Properties

scholarly journals PEMANFAATAN PUPUK BOKASIH TERHADAP PENINGKATAN KESUBURAN FISIK DAN KIMIA TANAH PADA LAHAN PEMBUDIDAYAAN TANAMAN TOMAT (Lycopersicum esculentum MILL.)

AGRICA ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 17-21
Author(s):  
Paulus O Lana ◽  
Charly Mutiara
Keyword(s):  
Pore Space ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Tomato Plants ◽  
Total Soil ◽  
Soil Pore Space ◽  
Physical And Chemical ◽  
Very High ◽  
Properties Of Soil ◽  
And Chemical Properties

This study aims to determine the effect of bokashi fertilizer dosage on the physical and chemical properties of soil on tomato plants and the optimum dose of bokashi fertilizer which can provide the best influence on the physical and chemical properties of the soil. The research design used was a randomized block design (RBD) with a single factor pattern consisting of five treatments namely B0 = 0 tons ha-1 bokashi fertilizer (control), B1 = 5 tons ha-1 bokashi fertilizer, B2 = 10 tons ha-1 bokashi fertilizer, B3 = 15 tons ha-1 bokashi fertilizer, B4 = 20 tons ha-1 bokashi fertilizer. The observation variables in this study were soil volume/bulk density (gr /cm3), total soil pore space (%), N- total soil, available P-soil, available K-soil, soil C-organic, and soil pH. The results showed that the administration of bokashi fertilizer was able to improve the physical properties of soil in tomato plants, namely the weight of the soil volume decreased by 1,120 gr / cm³, water holding capacity increased by 30.24%, and soil pore space increased by 57.74%, so that the soil aggregate became good Giving doses of bokashi fertilizer can improve soil chemical properties in tomato plants, namely C-organic 0.91% very low, N-total soil 0.32% medium, P-available 37.25 ppm very high, and K-available 425.64 ppm very high and soil pH to 6.81 neutral. The supply of 20 tons/ha of bokashi fertilizer can improve soil physical and chemical properties optimally in tomato plants.

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