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AGRICULTURAL RECLAMATION OF THE STERILE DUMPS RESULTING FROM SURFACE MINING OF LIGNITE

Marin, N.; Vrinceanu, A.; Lacatusu, A.; Sirbu, C.; Dumitru, M.
Abstract:
The paper presents the results of the experiences organized on the tailings dump resulting from the surface mining of lignite in Rovinari, Gorj county, for testing the effects of a fertilizer assortment, such as: liquid fertilizers based on humates extracted from lignite, complex mineral fertilizer (N105 P105 K105 and N150 P150 K150), farmyard manure (20, 40 and 60 t/ha) and compost (20, 40 and 60 t/ha), as well as mixtures of the two types of organic fertilizers with mineral fertilizer. Sunflowers have been used as test plant. All the tested fertilizers have resulted in statistically assured yield increases. The treatments applied have led to significant changes in soil chemical characteristics (pH, contents of humus, total nitrogen, mobile phosphorus, mobile potassium, cadmium, copper, cobalt, nickel, manganese, lead and zinc). Sunflower crops gave very significant production increases in fertilized variants with at least 40 t / ha of compost, as well as fertilization with complex fertilizers. Analyzes of sunflower leaves for nitrogen, phosphorus, potassium, calcium, magnesium, copper, zinc, iron and manganese content did not reveal statistically significant changes under the influence of applied treatments.
SGEM Research areas:
Year:
2018
Type of Publication:
In Proceedings
Keywords:
recultivation; mine tailings dump; fertilization
Volume:
18
SGEM Book title:
18th International Multidisciplinary Scientific GeoConference SGEM2018
Book number:
4.3
SGEM Series:
International Multidisciplinary Scientific GeoConference-SGEM
Pages:
151-156
Publisher address:
51 Alexander Malinov blvd, Sofia, 1712, Bulgaria
SGEM supporters:
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
Period:
3 – 6 December, 2018
ISBN:
978-619-7408-70-6
ISSN:
1314-2704
Conference:
18th International Multidisciplinary Scientific GeoConference SGEM2018, 3 – 6 December, 2018
DOI:
10.5593/sgem2018V/4.3/S06.019
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