scholarly journals Effect of Sewage Sludge Compost Usage on Corn and Faba Bean Growth, Carbon and Nitrogen Forms in Plants and Soil

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 628
Author(s):  
Hassan E. Abd Elsalam ◽  
Mohamed E. El- Sharnouby ◽  
Abdallah E. Mohamed ◽  
Bassem M. Raafat ◽  
Eman H. El-Gamal
Keyword(s):  
Organic Matter ◽  
Sewage Sludge ◽  
Plant Growth ◽  
Total Nitrogen ◽  
Faba Bean ◽  
Residual Effect ◽  
Growth Period ◽  
Nitrogen Forms ◽  
Amended Soils ◽  
Nitrogen Levels

Sewage sludge is an effective fertilizer in many soil types. When applied as an amendment, sludge introduces, in addition to organic matter, plant nutrients into the soil. When applied for cropland as a fertilizer, the mass loading of sewage sludge is customarily determined by inputs of N and/or P required to support optimal plant growth and a successful harvest. This study aims to examine the changes in organic matter contents and nitrogen forms in sludge-amended soils, as well as the growth of corn and faba bean plants. The main results indicated that there were higher responses to the corn and faba bean yields when sludge was added. Levels of organic carbon in soil were higher after maize harvest and decreased significantly after harvesting of beans, and were higher in sludge amended soils than unmodified soils, indicating the residual effect of sludge in soil. NO3−-N concentrations were generally higher in the soil after maize harvest than during the plant growth period, but this trend was not apparent in bean soil. The amounts of NH4+-N were close in the soil during the growth period or after the maize harvest, while they were higher in the soil after the bean harvest than they were during the growth period. Total nitrogen amounts were statistically higher in the soil during the growth period than those collected after the corn harvest, while they were approximately close in the bean soil. The total nitrogen amount in corn and bean leaves increased significantly in plants grown on modified sludge soil. There were no significant differences in the total nitrogen levels of the maize and beans planted on the treated soil.

scholarly journals CHEMICAL AND PHYSICOCHEMICAL CHANGES WITH SUCCESSIVE APPLICATIONS OF RAW DOMESTIC SEWAGE AS A FINAL DISPOSAL ALTERNATIVE OF FORAGE CULTIVATION

2018 ◽  
Vol 15 (29) ◽  
pp. 148-155
Author(s):  
M. T. M. COSTA ◽  
M. V. A. MARQUES ◽  
A. T. MATOS ◽  
T. H. R SILVÉRIO ◽  
D. L. A. PENIDO
Keyword(s):  
Organic Matter ◽  
Total Nitrogen ◽  
Ph Value ◽  
High Mobility ◽  
Soil Nutrient ◽  
Sodium Content ◽  
Superficial Layer ◽  
Domestic Sewage ◽  
Nitrogen Levels ◽  
Physicochemical Changes

Considering the significant expenses with fertilizer and irrigation, the use of wastewater in fertirrigation has been studied as an alternative, since it can supply part of the water demand and provide nutrients to the plants. The objective of this work was to evaluate the changes in soil nutrient/pollutant contents, with successive applications of Domestic Sewage. Two treatments were implanted, one of them without alternation and another with alternation in the direction of the flow. Chemical and physicochemical analyzes of soil in the superficial layer were made in samples collected after 10 and 26 weeks from the beginning of application. According to the results, there was an increase in the Total Nitrogen, Sodium content available and in the electrical conductivity values, but a decrease in Potassium, Organic Matter and pH values. Although Total Nitrogen levels increased, they remained below the limit of risk. Potassium reduction can be explained by the high mobility in the soil and the absorption of plants. However, the reduction in the content of organic matter and in the pH value is due to the effect of the nutrient supply, which favored the degradation of the native organic matter of the soil.

scholarly journals Modelling the Organic Evolution of a Mediterranean Limestone Soil under Usual Cropping of Durum Wheat and Faba Bean

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1688
Author(s):  
Hatem Ibrahim ◽  
Sinda Gaieb ◽  
Nadhem Brahim ◽  
Didier Blavet ◽  
Karel Van den Meersche ◽  
...  
Keyword(s):  
Organic Matter ◽  
Plant Growth ◽  
Durum Wheat ◽  
Faba Bean ◽  
Plant Production ◽  
N Fixation ◽  
Mathematical Tool ◽  
Close Link ◽  
Organic C ◽  
Limestone Soil

The modeling of carbon (C) and nitrogen (N) fluxes between microorganisms and plants in pure and associated cultures of durum wheat and faba bean demonstrated a close link between the C and N cycles in agroecosystems. The MOMOS (microorganisms and organic matter of soils) model integrates simplified descriptions of photosynthesis (origin of organic C in soil), N microbial exchange (soil origin for N), N fixation (atmospheric origin for N), and plant growth with an organic matter decomposition core that has the soil microbial community at its center. This work provides estimates of the exchange parameters between plant organs and microbes, which were compared to literature data when available. In a connection with photosynthesized C, the root demand for inorganic N can be adjusted by its microbial production. Our approach is a new methodology for improving plant production, by optimizing the interactions with soil microorganisms. Additionally, the coupling of plant growth and microbial processes enabled determining changes of the organic compartments of soil. In the unfertilized limestone soil of this study, sequestration was found to be located in the labile microbial metabolites for one year, then significantly transferred to stable humus during 6-year intercropping. Thus, we propose the MOMOS mathematical tool, not only for guiding ecological intensification, but also related to the management of agroecosystems for climate change mitigation.

NITRATE-SUPPLYING POWER OF EIGHT GRASSLAND SOILS OF THE KAMLOOPS, B.C., AREA AND CORRELATION WITH RANGE FORAGE PRODUCTION

1960 ◽  
Vol 40 (1) ◽  
pp. 63-70 ◽  
Author(s):  
J. D. Beaton ◽  
R. A. J. Warren ◽  
W. A. Hubbard
Keyword(s):  
British Columbia ◽  
Organic Matter ◽  
Plant Growth ◽  
Total Nitrogen ◽  
Nitrate Nitrogen ◽  
Poor Correlation ◽  
Forage Production ◽  
Grassland Soils ◽  
Soil Group ◽  
Laboratory Incubation

The formation of nitrate in eight grassland soils of the Kamloops, British Columbia, area was studied using a laboratory incubation technique. All the accumulative totals of nitrate nitrogen produced by these soils were low and suggest that the amount of nitrate formed may be inadequate for optimum plant growth. The desert-like soils, although they are regarded as being members of the Brown great soil group, released the most nitrate nitrogen. The Shallow and Degrading Black soils released nitrate in intermediate amounts while the Brown and Dark Brown soils produced the smallest quantities. The correlations between the accumulative total of nitrate released during incubation with: C/N ratio, total nitrogen and organic matter, were not highly significant. Poor correlation was obtained in the comparison between the accumulative total nitrate formed and the forage produced during the period 1954–1957.

scholarly journals Summer Applications of Plant Growth Retardants Affect Spring Forcing of Hydrangeas

1992 ◽  
Vol 2 (2) ◽  
pp. 213-216 ◽  
Author(s):  
Douglas A. Bailey ◽  
Bernadette Clark
Keyword(s):  
Plant Growth ◽  
Plant Height ◽  
Residual Effect ◽  
Control Program ◽  
Growth Period ◽  
Shoot Elongation ◽  
Growth Retardants ◽  
Height Control ◽  
Control Programs ◽  
Plant Growth Retardants

Summer spray applications of 5000 ppm daminozide (1× or 2×), 62 ppm paclobutrazol (1× or 2×), or 5 ppm uniconazole (1× or 2×) were applied to seven cultivars (Böttstein, Enziandom, Kasteln, Mathilde Gütges, Merritt's Supreme, Red Star, and Schenkenburg) of florists' hydrangea [Hydrangea macrophylla subsp. macrophylla var. macrophylla (Thunb.) Ser.] to evaluate cultivar response to plant growth retardants (PGRs). Both daminozide treatments and the 2× uniconazole treatment effectively reduced plant height for all cultivars during the summer growth period; cultivars varied in response to the paclobutrazol treatments and the 1× uniconazole treatment. Daminozide and uniconazole treatments resulted in less elongation than all other treatments during forcing for most cultivars tested. Paclobutrazol treatments had no residual effect on shoot elongation during forcing of the cultivars tested. The 2× treatments of all PGRs decreased inflorescence diameter of some of the cultivars tested compared with nonsprayed controls. Results from this study indicate that 1) summer application of PGRs can have a residual effect on plant height and inflorescence diameter of hydrangeas during the spring greenhouse forcing phase; and 2) hydrangea cultivars differ significantly in response to the PGRs tested. Therefore, the need for height control during the spring forcing period of hydrangeas will vary with cultivar, and it will depend on how plants were treated the previous summer growing season. We recommend that producers of dormant hydrangeas provide records of their summer height control program to forcers so that height control programs during spring forcing can be adjusted appropriately.

Effects of Linear Alkylbenzene Sulphonates (LASs) on Exogenous Organic Matter Content and Evolution in Sewage Sludge–Amended Soils

2006 ◽  
Vol 37 (15-20) ◽  
pp. 2615-2625
Author(s):  
Joaquin Moreno‐Caselles ◽  
Daniel Prats ◽  
Raul Moral ◽  
Maria Dolores Perez‐Murcia ◽  
Aurelia Perez‐Espinosa ◽  
...  
Keyword(s):  
Organic Matter ◽  
Sewage Sludge ◽  
Organic Matter Content ◽  
Matter Content ◽  
Amended Soils ◽  
Linear Alkylbenzene

A Study on the Farmers’ Awareness and Acceptance of Biofertilizers in Kottayam District

GIS Business ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. 425-431
Author(s):  
Subin Thomas ◽  
Dr. M. Nandhini
Keyword(s):  
Organic Matter ◽  
Nitrogen Fixation ◽  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Nutrient Cycle ◽  
Plant Growth Promoting ◽  
Promote Plant Growth ◽  
Growth Promoting ◽  
Structured Questionnaire ◽  
Area Data

Biofertilizers are fertilizers containing microorganisms that promote plant growth by improving the supply of nutrients to the host plant. The supply of nutrients is improved naturally by nitrogen fixation and solubilizing phosphorus. The living microorganisms in biofertilizers help in building organic matter in the soil and restoring the natural nutrient cycle. Biofertilizers can be grouped into Nitrogen-fixing biofertilizers, Phosphorous-solubilizing biofertilizers, Phosphorous-mobilizing biofertilizers, Biofertilizers for micro nutrients and Plant growth promoting rhizobacteria. This study conducted in Kottayam district was intended to identify the awareness and acceptance of biofertilizers among the farmers of the area. Data have been collected from 120 farmers by direct interviews with structured questionnaire.

Sludge minimization by disintegration at different wastewater treatment plants

2008 ◽  
Vol 3 (1) ◽  
Author(s):  
Luchien Luning ◽  
Paul Roeleveld ◽  
Victor W.M. Claessen
Keyword(s):  
Organic Matter ◽  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
New Technologies ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Biological Degradation ◽  
Ongoing Research ◽  
Sludge Minimization

In recent years new technologies have been developed to improve the biological degradation of sewage sludge by anaerobic digestion. The paper describes the results of a demonstration of ultrasonic disintegration on the Dutch Wastewater Treatment Plant (WWTP) Land van Cuijk. The effect on the degradation of organic matter is presented, together with the effect on the dewatering characteristics. Recommendations are presented for establishing research conditions in which the effect of sludge disintegration can be determined in a more direct way that is less sensitive to changing conditions in the operation of the WWTP. These recommendations have been implemented in the ongoing research in the Netherlands supported by the National Institute for wastewater research (STOWA).

Sign in / Sign up

Export Citation Format

Share Document