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dc.contributor.authorNguyen, Manh Khai-
dc.contributor.authorPham, Quang Ha-
dc.contributor.authorNguyen, Cong Vinh-
dc.contributor.authorGustafsson, Jon Petter-
dc.contributor.authorÖborn, Ingrid-
dc.date.accessioned2014-03-18T06:47:35Z-
dc.date.accessioned2015-08-14T08:55:27Z-
dc.date.available2014-03-18T06:47:35Z-
dc.date.available2015-08-14T08:55:27Z-
dc.date.issued2008-
dc.identifier.citationNguyen, Manh Khai. et al. (2008). Effects of biosolids application on soil chemical properties in peri-urban agricultural systems. VNU Journal of Science, Earth Sciences 24 (2008), p. 202-212vi_VN
dc.identifier.urihttp://repository.vnu.edu.vn/handle/11126/4583-
dc.description.abstractThe application of biosolids as a fertilizerin agricultural cultivation are common practices in many countries. This study investigates the effects of such practices in field experiments on Fluvisol and Acrisol soils in peri-urban Hanoi City. We compared biosolid-fertilized vegetable/rice-dominated systems (biosolids applied as chicken manure (Acrisol in Vinh Phuc Province) or composted pig manure mixed with rice straw (Fluvisol in Ha Tay Province). The biosolids were applied at six different rates representing from 0 to 450% of the normal annual dose used by local farmers. The application of biosolids had highly significant positive effects on organic carbon (TOC%) and total nitrogen (Ntot%), when the six different treatments of composted manure and chicken manure were compared. The soil reverse aqua regia-extractable (Rev Aq Reg) Zn increased linearly with biosolids application rateat both sites and the linear regression showed Zn (mg kg -1 ) = 112.5 + 13.25×10 -3 ×composted manure (t ha -1 ) (r 2 =0.58) or Zn (mg kg -1 ) = 43.77 + 35.04×10 -3 ×chicken manure (t ha -1 ) (r 2 =0.73), whereas Cu (Rev Aq Reg) only increased significantly at the Vinh Phuc site. The Cd and Pb (Rev Aq Reg) concentration is not clearly different from the control after short-term (one time) application of biosolids. The application of biosolids increased the EDTA-extractable fraction of Cd, Cu and Zn, but had no effect on NH4NO3-extractable fractions of these elements.vi_VN
dc.language.isoenvi_VN
dc.publisherVNUvi_VN
dc.subjectChicken manurevi_VN
dc.subjectComposted manurevi_VN
dc.subjectBiosolidsvi_VN
dc.subjectHeavy metalsvi_VN
dc.subjectTrace elementsvi_VN
dc.titleEffects of biosolids application on soil chemical properties in peri-urban agricultural systemsvi_VN
dc.typeArticlevi_VN
Appears in Collections:Earth and Environmental Studies


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  • Full metadata record
    DC FieldValueLanguage
    dc.contributor.authorNguyen, Manh Khai-
    dc.contributor.authorPham, Quang Ha-
    dc.contributor.authorNguyen, Cong Vinh-
    dc.contributor.authorGustafsson, Jon Petter-
    dc.contributor.authorÖborn, Ingrid-
    dc.date.accessioned2014-03-18T06:47:35Z-
    dc.date.accessioned2015-08-14T08:55:27Z-
    dc.date.available2014-03-18T06:47:35Z-
    dc.date.available2015-08-14T08:55:27Z-
    dc.date.issued2008-
    dc.identifier.citationNguyen, Manh Khai. et al. (2008). Effects of biosolids application on soil chemical properties in peri-urban agricultural systems. VNU Journal of Science, Earth Sciences 24 (2008), p. 202-212vi_VN
    dc.identifier.urihttp://repository.vnu.edu.vn/handle/11126/4583-
    dc.description.abstractThe application of biosolids as a fertilizerin agricultural cultivation are common practices in many countries. This study investigates the effects of such practices in field experiments on Fluvisol and Acrisol soils in peri-urban Hanoi City. We compared biosolid-fertilized vegetable/rice-dominated systems (biosolids applied as chicken manure (Acrisol in Vinh Phuc Province) or composted pig manure mixed with rice straw (Fluvisol in Ha Tay Province). The biosolids were applied at six different rates representing from 0 to 450% of the normal annual dose used by local farmers. The application of biosolids had highly significant positive effects on organic carbon (TOC%) and total nitrogen (Ntot%), when the six different treatments of composted manure and chicken manure were compared. The soil reverse aqua regia-extractable (Rev Aq Reg) Zn increased linearly with biosolids application rateat both sites and the linear regression showed Zn (mg kg -1 ) = 112.5 + 13.25×10 -3 ×composted manure (t ha -1 ) (r 2 =0.58) or Zn (mg kg -1 ) = 43.77 + 35.04×10 -3 ×chicken manure (t ha -1 ) (r 2 =0.73), whereas Cu (Rev Aq Reg) only increased significantly at the Vinh Phuc site. The Cd and Pb (Rev Aq Reg) concentration is not clearly different from the control after short-term (one time) application of biosolids. The application of biosolids increased the EDTA-extractable fraction of Cd, Cu and Zn, but had no effect on NH4NO3-extractable fractions of these elements.vi_VN
    dc.language.isoenvi_VN
    dc.publisherVNUvi_VN
    dc.subjectChicken manurevi_VN
    dc.subjectComposted manurevi_VN
    dc.subjectBiosolidsvi_VN
    dc.subjectHeavy metalsvi_VN
    dc.subjectTrace elementsvi_VN
    dc.titleEffects of biosolids application on soil chemical properties in peri-urban agricultural systemsvi_VN
    dc.typeArticlevi_VN
    Appears in Collections:Earth and Environmental Studies


  • TC_02612.pdf
    • Size : 133,29 kB

    • Format : Adobe PDF

    • View : 
    • Download :