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Soil quality and crop yields, after utilization of sewage sludge on agricultural land, in the Moldavian plain, Romania

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dc.contributor.author Ailincăi, C.
dc.contributor.author Jităreanu, G.
dc.contributor.author Bucur, D.
dc.contributor.author Ailincăi, Despina
dc.date.accessioned 2021-08-30T10:36:20Z
dc.date.available 2021-08-30T10:36:20Z
dc.date.issued 2011-12-09
dc.identifier.citation Ailincăi, C., G. Jităreanu, D. Bucur, Despina Ailincăi. 2012. ”Soil quality and crop yields, after utilization of sewage sludge on agricultural land, in the Moldavian plain, Romania”. Cercetări Agronomice în Moldova 45 (1): 5-18. en_US
dc.identifier.uri https://repository.uaiasi.ro/xmlui/handle/20.500.12811/1861
dc.description.abstract Investigations conducted at the Podu-Iloaiei Agricultural Research Station, Iaşi County, have studied the influence of different sewage sludge rates on yield quality and quantity and soil agrochemical characteristics. Trials were set up in a five year-crop rotation, winter rapewheat- maize-sunflower-wheat. Sewage sludge was applied every 2 years at rates of 20, 30, 40 and 60 t/ha, with different mineral fertilizer rates, differentiated according to the growing plant. The Cambic Chernozem used for experiments had a clayey-loam texture (410 g clay, 310 g loam and 280 g sand), a weakly acid reaction and a mean supply with mobile phosphorus and a very good one with mobile potassium. Applying rates of 30 t/ha sewage sludge has resulted in the accumulation of mobile phosphate stock in soil of 57 mg/kg and the microelement content, mobile forms from soil, was of 7.9 mg/kg at Cu, 1.4 mg/kg at B, 6.8 mg/kg at Zn and 186 mg/kg at manganese. The combined use of mean rates of mineral fertilizers (N100P80), together with 40 t/ha sewage sludge has resulted in improving soil chemical characteristics and getting yield increases in winter rape of 1854 kg/ha (108 %). After 8 years since the application of a rate of 30 t/ha sewage sludge, soil pH has increased 0.4 units, while phosphorus and potassium content from soil has increased by 30 and 52 mg/ kg soil, respectively. Sewage sludge from the Iaşi Water Treatment Station, which was applied every two years at rates of 20 and 30 t/ha, has determined the increase in the organic carbon content from soil by 2.9 g/kg (18%) and 4.4 g/kg (28%), respectively, compared to the unfertilized variant. The copper and zinc content from grains in wheat and maize crops, fertilized with 30 t/ha sewage sludge, was by two-four times higher, compared to the unfertilized control. en_US
dc.language.iso en en_US
dc.publisher "Ion Ionescu de la Brad" University of Agricultural Sciences and Veterinary Medicine, Iași en_US
dc.subject sewage sludge en_US
dc.subject organic carbon en_US
dc.subject heavy metals en_US
dc.subject winter rape en_US
dc.subject wheat en_US
dc.subject maize en_US
dc.title Soil quality and crop yields, after utilization of sewage sludge on agricultural land, in the Moldavian plain, Romania en_US
dc.type Article en_US
dc.author.affiliation C. Ailincăi, G. Jităreanu, D. Bucur, University of Agricultural Sciences and Veterinary Medicine of Iaşi, Romania
dc.author.affiliation Despina Ailincăi, Agricultural Research and Development Station of Podu-Iloaiei, Iaşi County, Romania
dc.publicationName Cercetări Agronomice în Moldova
dc.volume 45
dc.issue 1
dc.publicationDate 2012
dc.startingPage 5
dc.endingPage 18
dc.identifier.eissn 2067-1865


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