Soil washing with biodegradable chelating agents and EDTA: Effect on soil properties and plant growth

AbstractThe most important measures for salt-affected mudflat soil reclamation are to reduce salinity and to increase soil organic carbon (OC) content and thus soil fertility. Salinity reduction is often accomplished through costly freshwater irrigation by special engineering measures. Whether fertility enhancement only through one-off application of a great amount of OC can improve soil properties and promote plant growth in salt-affected mudflat soil remains unclear. Therefore, the objective of our indoor pot experiment was to study the effects of OC amendment at 0, 0.5%, 1.0%, 1.5%, and 2.5%, calculated from carbon content, by one-off application of sewage sludge on soil properties, rice yield, and root growth in salt-affected mudflat soil under waterlogged conditions. The results showed that the application of sewage sludge promoted soil fertility by reducing soil pH and increasing content of OC, nitrogen and phosphorus in salt-affected mudflat soil, while soil electric conductivity (EC) increased with increasing sewage sludge (SS) application rates under waterlogged conditions. In this study, the rice growth was not inhibited by the highest EC of 4.43 dS m−1 even at high doses of SS application. The SS application increased yield of rice, promoted root growth, enhanced root activity and root flux activity, and increased the soluble sugar and amino acid content in the bleeding sap of rice plants at the tillering, jointing, and maturity stages. In conclusion, fertility enhancement through organic carbon amendment can “offset” the adverse effects of increased salinity and promote plant growth in salt-affected mudflat soil under waterlogged conditions.

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Soil Washing Enhanced by Humic Substances and Biodegradable Chelating Agents

Soil and Sediment Contamination An International Journal ◽

10.1080/15320383.2014.852511 ◽

2014 ◽

Vol 23 (6) ◽

pp. 599-613 ◽

Cited By ~ 20

Author(s):

Neil R. Hartley ◽

Daniel C. W. Tsang ◽

William E. Olds ◽

Paul A. Weber

Keyword(s):

Humic Substances ◽

Chelating Agents ◽

Soil Washing

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Correlation of pH on Soil Physicochemical Properties using Linear Regression Model for Spectral Data Analysis

International Journal of Advanced Remote Sensing and GIS ◽

10.23953/cloud.ijarsg.504 ◽

2021 ◽

Vol 10 (1) ◽

pp. 3492-3500

Author(s):

Vipin Y. Borole ◽

◽

Sonali B. Kulkarni ◽

Keyword(s):

Linear Regression ◽

Plant Growth ◽

Physicochemical Properties ◽

Regression Model ◽

Soil Properties ◽

Spectral Data ◽

Linear Regression Model ◽

Soil Analysis ◽

Soil Physicochemical Properties ◽

Analytical Technique

Soil properties may be varied by spatially and temporally with different agricultural practices. An accurate and reliable soil properties assessment is challenging issue in soil analysis. The soil properties assessment is very important for understanding the soil properties, nutrient management, influence of fertilizers and relation between soil properties which are affecting the plant growth. Conventional laboratory methods used to analyses soil properties are generally impractical because they are time-consuming, expensive and sometimes imprecise. On other hand, Visible and infrared spectroscopy can effectively characterize soil. Spectroscopic measurements are rapid, precise and inexpensive. Soil spectroscopy has shown to be a fast, cost-effective, environmentally friendly, non-destructive, reproducible and repeatable analytical technique. In the present research, we use spectroscopy techniques for soil properties analysis. The spectra of agglomerated farming soils were acquired by the ASD Field spec 4 spectroradiometer. Different fertilizers treatment applied soil samples are collected in pre monsoon and post monsoon season for 2 year (4 season) for banana and cotton crops in the form of DS-I and DS-II respectively. The soil spectra of VNIR region were preprocessed to get pure spectra. Then process the acquired spectral data by statistical methods for quantitative analysis of soil properties. The detected soil properties were carbon, Nitrogen, soil organic matter, pH, phosphorus, potassium, moisture sand, silt and clay. Soil pH is most important chemical properties that describe the relative acidity or alkalinity of the soil. It directly effect on plant growth and other soil properties. The relationship between pH properties on soil physical and chemical parameters and their influence were analyses by using linear regression model and show the performance of regression model with R2 and RMSE. Keywords soil; physicochemical properties; spectroscopy; pH

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EFFECTS OF LIME ON EXTRACTABLE ALUMINUM AND OTHER SOIL PROPERTIES AND ON BARLEY AND ALFALFA GROWN IN POT TESTS

Canadian Journal of Soil Science ◽

10.4141/cjss72-054 ◽

1972 ◽

Vol 52 (3) ◽

pp. 427-438 ◽

Cited By ~ 6

Author(s):

A. J. MacLEAN ◽

R. L. HALSTEAD ◽

B. J. FINN

Keyword(s):

Plant Growth ◽

Soil Properties ◽

Soil Ph ◽

Acid Soil ◽

Soil Samples ◽

Neutral Salt ◽

Incubation Experiment ◽

Pot Experiments ◽

P Content ◽

Mn Content

Liming of six acid soil samples in an incubation experiment with rates to raise the soil pH to 6.0 or above eliminated Al soluble in 0.01 M CaCl2, reduced soluble Mn and Zn, increased NO3-N markedly, and at the highest pH increased the amounts of NaHCO3-soluble P in some of the soils. In corresponding pot experiments, liming increased the yield of alfalfa and in three of the soils the yield of barley also. Liming reduced the concentrations of the metals in the plants and at the highest pH tended to increase the P content of the plants. Liming to a pH of about 5.3 eliminated or greatly reduced soluble Al and the soils were base saturated as measured by the replacement of Al, Ca, and Mg by a neutral salt. There was some evidence that liming to reduce soluble Al and possibly Mn was beneficial for plant growth. Gypsum increased the concentrations of Al, Mn, and Zn in 0.01 M CaCl2 extracts of the soils whereas phosphate reduced them. The changes in the Mn content of the plants following these treatments were in agreement with the amounts of Mn in the CaCl2 extracts.

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Soil Properties and Plant Growth Response to Litter in a Prolonged Enclosed Grassland of Loess Plateau, China

Journal of Earth Science ◽

10.1007/s12583-019-1017-3 ◽

2019 ◽

Vol 30 (5) ◽

pp. 1041-1048 ◽

Cited By ~ 2

Author(s):

Yunwu Xiong ◽

Bing Yu ◽

Mengting Bai ◽

Xueyang Zhang ◽

Guanhua Huang ◽

...

Keyword(s):

Plant Growth ◽

Soil Properties ◽

Loess Plateau ◽

Growth Response ◽

Plant Growth Response

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Earthworms, Soil Properties and Plant Growth

Sustainable Soil Management ◽

10.1201/b14080-14 ◽

2013 ◽

Author(s):

Kam-Rigne Laossi ◽

Thibaud Decaëns ◽

Pascal Jouquet ◽

Sébastien Barot

Keyword(s):

Plant Growth ◽

Soil Properties

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Evaluation of Organic Manures, Fermented Organics and PGPR on Plant Growth and Soil Properties under Capsicum (Capsicum annuum L.)

International Journal of Current Microbiology and Applied Sciences ◽

10.20546/ijcmas.2020.906.176 ◽

2020 ◽

Vol 9 (6) ◽

pp. 1413-1421

Author(s):

Perminder Singh Brar ◽

Rajesh Kaushal ◽

Gitika Bhardwaj

Keyword(s):

Plant Growth ◽

Soil Properties ◽

Capsicum Annuum ◽

Organic Manures ◽

Capsicum Annuum L

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Effect of EDTA and EDDS on Phytoremediation of Pb- and Zn- Contaminated Soil by Brassica Juncea

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.518-523.5040 ◽

2012 ◽

Vol 518-523 ◽

pp. 5040-5046 ◽

Cited By ~ 1

Author(s):

Li Di Gao ◽

Naoki Kano ◽

Yuichi Sato ◽

Shuang Zhang ◽

Hiroshi Imaizumi

Keyword(s):

Heavy Metals ◽

Control System ◽

Plant Growth ◽

Brassica Juncea ◽

Contaminated Soil ◽

Chelating Agents ◽

Environmental Control ◽

Chelating Agent ◽

Whole Plant ◽

Biomass Loss

Effect of EDTA and EDDS on phytoremediation of Pb- and Zn- contaminated soil by Brassica Juncea was investigated in this work. Especially, the effect of the kind and the method of adding chelating agent was investigated during the plant growth. Plants were grown in an environmental control system. The biomass of the whole plant was weighed, and the uptake of Pb and Zn in shoot and root were determined using ICP-AES. Consequently, the following matters have been obtained: (1) Both EDTA and EDDS significantly enhanced the translocation of metals (Pb and Zn) in soil from root to shoot. Furthermore, the two chelating agents resulted in a sharply biomass loss for more than 30% of the control. As a result, the total uptake amount of metals by Brassica Juncea was decreased (except the uptake of Pb with the addition of 3.0 mmol•kg-1 EDTA). (2) EDDS showed the higher inhibition for the growth of Brassica Juncea than EDTA. (3) The method for adding EDTA and EDDS at several times separately did not necessarily increase the uptake of heavy metals.

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