scholarly journals Effect of silicon on reduction the availability of toxic elements in the soil: a brief review

2021 ◽  
Vol 14 (4) ◽  
pp. 16-21
Author(s):  
A. P. R. Silva ◽  
D. M. Fernandes

Soil pollution is a major environmental problem and also makes food production impossible, since 95% of food produced worldwide originates in the soil. There are numerous practices that when improperly made can cause soil contamination, in agriculture the inadequate use of fertilizers and agrochemicals can cause soil contamination by toxic elements. Silicon is already present in the soil in a natural way, but in recent years research is being developed using silicon-based residues to increase plants resistance to pests and diseases, such as soil corrective and for increased productivity, the results are satisfactory. Many published studies show the benefits of silicon in reducing plants stress, but there is still little information about silicon as a remediator of toxic elements in the soil, so the objective of this work was to search for already published works on this theme. Studies were found using different silicon sources and the application occurred in soils contaminated mainly with Zn, Cd, Cu and Pb.

2021 ◽  
pp. 6-14
Author(s):  
N.P. KARPENKO ◽  
◽  
M.A. SHIRYAEVA

The method of three-dimensional model in the system of computer modeling MathCad and Autodesk 3ds Max by categories of total soil pollution is developed. A visualization block and an analytical block have been developed which are based on calculated mathematical models for analyzing and evaluating the environmental situation, risks, and environmental safety of the territory. Three-dimensional models of relief mapping of the Pekhorka river fl oodplain are constructed by integrating them with the help of a programming environment and optimized 3D modeling programs. Three-dimensional models with total soil contamination for water body sections are constructed. On the example of some sections of the catchment area of the Pekhorka river in the Balashikha region, models with soil contamination by the total ZC indicator were created. The development of 3D modeling techniques allows you to create predictive scenarios more accurately with a high degree of detail, as well as quickly approach the solution of environmental problems. Optimization of three-dimensional modeling in the fi eld of problems related to the catchment area contributes to the further operational solution of problems of rational land use and improvement of the environmental situation.


2010 ◽  
Vol 16 (4) ◽  
pp. 399-403 ◽  
Author(s):  
Zvonko Njezic ◽  
Jasmina Zivkovic ◽  
Biljana Cvetkovic

Food production is a top priority issue, as the lack of food for the continuously growing population is becoming an increasing problem in the world and in Serbia as well. Increase of food production for humans and animals can be achieved by use of new technologies in biotechnology, i.e. in bio-industry. Nowadays, there are many different ways for thermal processing of cereals: toasting, extrusion, hydrothermal processing, micronization, microwave treatment, while in Serbia, most frequently used processes are extrusion and hydrothermal processing. Baking industry is highly developed in Serbia. Bread consumption per capita in Serbia is far above average consumption in EU. According to the survey conducted, there is a significant amount of leftover bread in Serbia. Leftover bread represents an environmental problem, but also potentially valuable raw material for human food and animal feed.


1967 ◽  
Vol 167 (1007) ◽  
pp. 145-154 ◽  

A brief background of Indian agriculture, climate, crops and cropping patterns will help in understanding the problems of pests and diseases and their magnitude. The geographical area of India is 326-9 million hectares and about 78-45 million hectares are under forests and about 14 million hectares are under permanent pasture and grazing lands. The total cropped area is 156-7 million hectares, out of which 20-5 million hectares are sown more than once, leaving a net cultivated area of 136-2 million hectares. In addition, about 4-6 million hectares are put to miscellaneous tree crops and orchards.


2011 ◽  
Vol 50 (No. 5) ◽  
pp. 218-226 ◽  
Author(s):  
M. Wyszkowski ◽  
J. Wyszkowska ◽  
A. Ziółkowska

The study has been undertaken to assay the effect of soil contamination with diesel oil on yellow lupine yield and macroelement contents as well as to examine the relationships between the accumulation of macroelements versus the yellow lupine yielding and some yield quality characteristics. The influence of soil pollution with refinery products depended on the type of soil, diesel oil concentration in soil and mineral fertilisation. Increasing contents of soil pollution with diesel oil promoted higher concentrations of phosphorus, sodium, magnesium and calcium in aboveground parts and roots of yellow lupine. More severe contamination was also responsible for depressed yield of yellow lupine aboveground parts and roots as well as accumulation of nitrogen in aboveground parts and potassium in roots of the crop. The addition of nitrogen to soil diversified the yielding and content of macroelements in yellow lupine. The direction these changes took depended on the plant organ, type of soil and degree of diesel oil contamination.


2010 ◽  
Vol 22 (6) ◽  
pp. 565-585 ◽  
Author(s):  
C. Candeias ◽  
E. Ferreira da Silva ◽  
A.R. Salgueiro ◽  
H.G. Pereira ◽  
A.P. Reis ◽  
...  

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