scholarly journals Highly effective stabilization of Cd and Cu in two different soils and improvement of soil properties by multiple-modified biochar

2021 ◽  
Vol 207 ◽  
pp. 111294 ◽  
Author(s):  
Yangyang Wang ◽  
Kaixuan Zheng ◽  
Wenhao Zhan ◽  
Luyu Huang ◽  
Yidan Liu ◽  
...  
Keyword(s):  
Soil Properties ◽  
Modified Biochar ◽  
Highly Effective ◽  
Effective Stabilization ◽  
Different Soils

Sorption of fenamiphos to different soils: The influence of soil properties

2008 ◽  
Vol 43 (7) ◽  
pp. 605-610 ◽  
Author(s):  
Tanya P. Cáceres ◽  
Mallavarapu Megharaj ◽  
Ravi Naidu
Keyword(s):  
Soil Properties ◽  
Different Soils

scholarly journals The adsorption of cyanobacterial hepatoxins as a function of soil properties

2005 ◽  
Vol 3 (4) ◽  
pp. 339-347 ◽  
Author(s):  
Megge J. Miller ◽  
John Hutson ◽  
Howard J. Fallowfield
Keyword(s):  
Soil Properties ◽  
Low Cost ◽  
Sorption Isotherms ◽  
Developing Nations ◽  
Natural Process ◽  
Bank Filtration ◽  
Batch Studies ◽  
Toxin Removal ◽  
Positive Correlations ◽  
Different Soils

Cyanobacterial hepatotoxins present a risk to public health when present in drinking water supplies. Existing removal strategies, although efficient, are not economically viable or practical for remote Australian communities and developing nations. Bank filtration is a natural process and a potential low cost, toxin removal strategy. Batch studies were conducted in 12 texturally diverse soils to examine the soil properties influencing the adsorption of the cyanobacterial hepatotoxins, microcystin-LR and nodularin. Sorption isotherms were measured. Freundlich and linear isotherms were observed for both toxins with adsorption coefficients not exceeding 2.75 l kg−1 for nodularin and 3.8 l kg−1 for microcystin. Significant positive correlations were identified between hepatotoxin sorption and clay and silt contents of the soils. Desorption of toxins was also measured in three different soils. Pure nodularin and microcystin-LR readily desorbed from all soils.

Weed control with atrazine and chlorsulfuron is determined by herbicide availability and persistence in soils

1997 ◽  
Vol 48 (7) ◽  
pp. 1003 ◽  
Author(s):  
S. R. Walker ◽  
G. R. Robinson ◽  
P. A. Hargreaves
Keyword(s):  
Soil Properties ◽  
Weed Control ◽  
Soil Ph ◽  
Root Zone ◽  
Free System ◽  
Climatic Variations ◽  
Sensitivity Data ◽  
Rapistrum Rugosum ◽  
Different Soils

Effectiveness and length of weed control with atrazine and chlorsulfuron can be variable in the field. While some of this may be due to climatic variations, differences in soil properties may also be important. We tested this by recording changes in control of mintweed (Salvia reflexa Hornem.) and turnip weed (Rapistrum rugosum L.) with time in different soils, and comparing these results with the measured changes in plant-available herbicide in the soils. Length of weed control with the same herbicide rate varied from 0 to >15 weeks. Mintweed and turnip weed were controlled (85-100%) only when the soils had ¸ 0·1µ#9839;g available atrazine/g and 0·8 ng available chlorsulfuron/g, respectively. This agreed with the sensitivity data for these weeds when grown in a soil-free system. The herbicides were initially more available in grey clays than in black earths, and soil pH accounted for most of the variations in the persistence of the available residues. Thus, the efficacy of these herbicides in different soils could be estimated if the available residues in the root-zone could be predicted and the sensitivity of different weeds was known.

Desorption of native and added zinc from a range of New Zealand soils in relation to soil properties

Soil Research ◽  
1997 ◽  
Vol 35 (6) ◽  
pp. 1253 ◽  
Author(s):  
D. Singh ◽  
R. G. McLaren ◽  
K. C. Cameron
Keyword(s):  
Regression Analysis ◽  
Soil Properties ◽  
Exchange Capacity ◽  
Organic C ◽  
Soil Variables ◽  
Dominant Soil ◽  
Linear Regressions ◽  
Mn Oxides ◽  
Extractable Zn ◽  
Different Soils

Compared with zinc (Zn) sorption, there is very little information on the effect of soil properties on Zn desorption from soils. In this study, desorption of native and added Zn from 7 Canterbury (NZ) soils was determined using a technique involving repeated equilibration of soil in 0·01 M Ca(NO3)2. The concentrations and patterns of desorption of both native and added Zn varied between the different soils. Greater concentrations of native Zn were desorbed from surface soils than from subsoils, and greater concentrations of added Zn were desorbed from subsoils than from their corresponding surface horizons. Correlation analysis showed that cation exchange capacity (CEC) and organic carbon (C) were the dominant soil variables contributing towards sorption or desorption of Zn. However, simple linear regressions involving CEC or organic C explained only 48–62% of the total variation in Zn sorption or desorption from the different soils. Multiple regression analysis indicated that cumulative native Zn desorption (expressed as percentage of DTPA-extractable Zn) was strongly related to CEC and the content of Mn oxides, which in combination explained 80% of the variability between soils. Regression analysis also showed that CEC plus Mn oxides and pH explained 91% of the variability in Zn sorption between the soils; whereas for added Zn desorbed (%), CEC plus pH and crystalline Al oxides explained 93% of variability in added Zn desorption.

Soil Properties Dominate Yellow-Poplar Seedling Growth

1987 ◽  
Vol 11 (2) ◽  
pp. 119-123 ◽  
Author(s):  
Ronald L. Hay ◽  
R. David Hammer ◽  
John P. Conn
Keyword(s):  
Soil Properties ◽  
Glomus Mosseae ◽  
Growing Season ◽  
Test Site ◽  
Height Growth ◽  
Soil Variability ◽  
Yellow Poplar ◽  
Nursery Culture ◽  
Poplar Growth ◽  
Different Soils

Abstract Topdressing of urea (224 kg/ha) in combination with Glomus mosseae inoculum produced the largest 1-0 yellow-poplar (Liriodendron tulipifera L.) seedlings of 16 combinations of nursery fertilizer and endomycorrhizal treatments. However, after two years in an outplanting trial, significantdifferences in seedling size due to the nursery treatments had disappeared. The cause was traced to soil variability; five different soils were found within the 0.5 ha test site, varying in characteristics known to be important to yellow-poplar growth. Soil properties had occluded significanteffects of nursery culture treatments on seedling height growth and the effects continued through the fourth growing season. South. J. Appl. For. 11(2):119-123.

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