Effects of biosolids application on soil chemical properties in peri-urban agricultural systems

The application of biosolids as a fertilizer in 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 biosolidfertilized vegetable/rice-dominated...

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Main Author: Nguyễn, Mạnh Khải
Format: Article
Language:English
Published: VNU 2014
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Online Access:http://repository.vnu.edu.vn/handle/11126/5026
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Institution: Vietnam National University, Hanoi
Language: English
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spelling oai:112.137.131.14:11126-50262017-08-11T04:55:04Z Effects of biosolids application on soil chemical properties in peri-urban agricultural systems Nguyễn, Mạnh Khải Chất rắn Sinh học Đất Hóa học Ven đô Sản xuất nông nghiệp The application of biosolids as a fertilizer in 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 biosolidfertilized 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 rate at both sites and the linear regression showed Zn (mg kg-1) = 112.5 + 13.25×10-3×composted manure (t ha-1) (r2=0.58) or Zn (mg kg-1) = 43.77 + 35.04×10-3×chicken manure (t ha-1) (r2=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. 2014-03-31T03:11:24Z 2015-08-14T08:55:48Z 2014-03-31T03:11:24Z 2015-08-14T08:55:48Z 2008 Article p. 202-212 http://repository.vnu.edu.vn/handle/11126/5026 en application/pdf VNU
institution Vietnam National University, Hanoi
building VNU Library & Information Center
country Vietnam
collection VNU Digital Repository
language English
topic Chất rắn
Sinh học
Đất
Hóa học
Ven đô
Sản xuất nông nghiệp
spellingShingle Chất rắn
Sinh học
Đất
Hóa học
Ven đô
Sản xuất nông nghiệp
Nguyễn, Mạnh Khải
Effects of biosolids application on soil chemical properties in peri-urban agricultural systems
description The application of biosolids as a fertilizer in 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 biosolidfertilized 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 rate at both sites and the linear regression showed Zn (mg kg-1) = 112.5 + 13.25×10-3×composted manure (t ha-1) (r2=0.58) or Zn (mg kg-1) = 43.77 + 35.04×10-3×chicken manure (t ha-1) (r2=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.
format Article
author Nguyễn, Mạnh Khải
author_facet Nguyễn, Mạnh Khải
author_sort Nguyễn, Mạnh Khải
title Effects of biosolids application on soil chemical properties in peri-urban agricultural systems
title_short Effects of biosolids application on soil chemical properties in peri-urban agricultural systems
title_full Effects of biosolids application on soil chemical properties in peri-urban agricultural systems
title_fullStr Effects of biosolids application on soil chemical properties in peri-urban agricultural systems
title_full_unstemmed Effects of biosolids application on soil chemical properties in peri-urban agricultural systems
title_sort effects of biosolids application on soil chemical properties in peri-urban agricultural systems
publisher VNU
publishDate 2014
url http://repository.vnu.edu.vn/handle/11126/5026
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