A review of selected microcontaminants and microorganisms in land runoff and tile drainage in treated sludge-amended soils

Abstract A five month survey of 2,4-D in Buckhorn Lake water and sediment, combined with streamflow data, produced estimates of the chemical in the lake. The peak concentrations in the water alone were significantly higher than the documented uses would permit. Two distinct concentration peaks were shown by the chemical: one during the June milfoil control season, and one in late August, indicating a release of 2,4-D from the collapsed and decaying milfoil beds. The observed rates of disappearance of the chemical agreed with reported values, showing a limited persistence in the lake. The presence of 2,4-D in the spring sediments was attributed to land runoff.

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Dissolved Phosphorus Losses in Tile Drainage under Subirrigation

Water Quality Research Journal ◽

10.2166/wqrj.2006.007 ◽

2006 ◽

Vol 41 (1) ◽

pp. 63-71 ◽

Cited By ~ 3

Author(s):

Nicolas Stämpfli ◽

Chandra A. Madramootoo

Keyword(s):

Water Table ◽

Residual Effect ◽

Surface Water Quality ◽

Soil Surface ◽

Quality Standard ◽

Tile Drainage ◽

Agricultural Field ◽

Shallow Water Table ◽

Dissolved Phosphorus ◽

Water Table Control

Abstract Recent studies have shown subirrigation (SI) to be effective in reducing nitrate losses from agricultural tile drainage systems. A field study was conducted from 2001 to 2002 in southwestern Québec to evaluate the effect of SI on total dissolved phosphorus (TDP) losses in tile drainage. In an agricultural field with drains installed at a 1-m depth, a SI system with a design water table depth (WTD) of 0.6 m below the soil surface was compared with conventional free drainage (FD). Subirrigation increased drainage outflow volumes in the autumn, when drains were opened and water table control was interrupted for the winter in the SI plots. Outflows were otherwise similar for both treatments. Throughout the study, the TDP concentrations in tile drainage were significantly higher with SI than with FD for seven out of 17 of the sampling dates for which data could be analyzed statistically, and they were never found to be lower for plots under SI than for plots under FD. Of the seven dates for which the increase was significant, six fell in the period during which water table control was not implemented (27 September 2001 to 24 June 2002). Hence, it appears that SI tended to increase TDP concentrations compared with FD, and that it also had a residual effect between growing seasons. Almost one-third of all samples from the plots under SI exceeded Québec's surface water quality standard (0.03 mg TDP L-1), whereas concentrations in plots under FD were all below the standard. Possible causes of the increase in TDP concentrations in tile drainage with SI are high TDP concentrations found in the well water used for SI and a higher P solubility caused by the shallow water table.

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NITRATE REDUCTION FROM TILE DRAINAGE IN A RESTORED OXBOW WETLAND

10.1130/abs/2016nc-275519 ◽

2016 ◽

Author(s):

Stephen J. Kalkhoff ◽

◽

Joseph Schubauer-Berigan

Keyword(s):

Nitrate Reduction ◽

Tile Drainage

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

Agronomy ◽

10.3390/agronomy11040628 ◽

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.

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Can repeated soil amendment with biogas digestates increase soil suppressiveness toward non-specific soil-borne pathogens in agricultural lands?

Renewable Agriculture and Food Systems ◽

10.1017/s1742170520000393 ◽

2020 ◽

pp. 1-12

Author(s):

L. M. Manici ◽

F. Caputo ◽

G. A. Cappelli ◽

E. Ceotto

Keyword(s):

Plant Growth ◽

Biomass Production ◽

Soil Amendment ◽

Plant Biomass ◽

Amended Soils ◽

Soil Suppressiveness ◽

Soil Microbial ◽

Soil Borne Pathogens ◽

The Impact ◽

Plant Biomass Production

Abstract Soil suppressiveness which is the natural ability of soil to support optimal plant growth and health is the resultant of multiple soil microbial components; which implies many difficulties when estimating this soil condition. Microbial benefits for plant health from repeated digestate applications were assessed in three experimental sites surrounding anaerobic biogas plants in an intensively cultivated area of northern Italy. A 2-yr trial was performed in 2017 and 2018 by performing an in-pot plant growth assay, using soil samples taken from two fields for each experimental site, of which one had been repeatedly amended with anaerobic biogas digestate and the other had not. These fields were similar in management and crop sequences (maize was the recurrent crop) for the last 10 yr. Plant growth response in the bioassay was expressed as plant biomass production, root colonization frequency by soil-borne fungi were estimated to evaluate the impact of soil-borne pathogens on plant growth, abundance of Pseudomonas and actinomycetes populations in rhizosphere were estimated as beneficial soil microbial indicators. Repeated soil amendment with digestate increased significantly soil capacity to support plant biomass production as compared to unamended control in both the years. Findings supported evidence that this increase was principally attributable to a higher natural ability of digestate-amended soils to reduce root infection by saprophytic soil-borne pathogens whose inoculum was increased by the recurrent maize cultivation. Pseudomonas and actinomycetes were always more abundant in digestate-amended soils suggesting that both these large bacterial groups were involved in the increase of their natural capacity to control soil-borne pathogens (soil suppressiveness).

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Biosolid Colloid-Mediated Transport of Copper, Zinc, and Lead in Waste-Amended Soils

Journal of Environmental Quality ◽

10.2134/jeq2004.0403 ◽

2005 ◽

Vol 34 (4) ◽

pp. 1153-1164 ◽

Cited By ~ 33

Author(s):

A. D. Karathanasis ◽

D. M. C. Johnson ◽

C. J. Matocha

Keyword(s):

Amended Soils ◽

Copper Zinc

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Effects of pyrolysis temperature, feedstock type and compaction on water retention of biochar amended soil

Scientific Reports ◽

10.1038/s41598-021-86701-5 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

He Huang ◽

Narala Gangadhara Reddy ◽

Xilong Huang ◽

Peinan Chen ◽

Peiying Wang ◽

...

Keyword(s):

Water Retention ◽

Pyrolysis Temperature ◽

Chemical Properties ◽

Bare Soil ◽

Chicken Manure ◽

Soil Water Retention ◽

Amended Soils ◽

Retention Behaviour ◽

Water Retention Behaviour ◽

Amended Soil

AbstractRecent studies on water retention behaviour of biochar amended soil rarely considers the effect of pyrolysis temperature and also feedstock type into account. It is well known that pyrolysis temperature and feedstock type influences the physical and chemical properties of biochar due to stagewise decomposition of structure and chemical bonds. Further, soil density, which is in a loose state (in agricultural applications) and dense (in geo-environmental engineering applications) can also influence water retention behaviour of biochar amended soils. The major objective of this study is to investigate the water retention properties of soil amended with three different biochars in both loose and dense state. The biochars, i.e. water hyacinth biochar (WHB), chicken manure biochar (CMB) and wood biochar (WB) were produced in-house at different pyrolysis temperature. After then, biochars at 5% and 10% (w/w%) were amended to the soil. Water retention behaviour (soil suction and gravimetric water content) was studied under drying and wetting cycle simulated by varying relative humidity (RH, 50–90%). Results show that 10% WHB produced at 300 °C were found to possess highest water retention. CMB is found to possess higher water retention than WB for 10% amendment ratio. In general, the addition of three biochars (at both 300 °C and 600 °C) at 10% (w/w) significantly improved the water retention at all suction ranges in both loose and dense compaction state as compared to that of the bare soil. The adsorption (wetting) and desorption (drying) capacity of biochar amended soils is constant at corresponding RH.

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