Journal
BIORESOURCE TECHNOLOGY
Volume 101, Issue 1, Pages 396-403Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2009.07.058
Keywords
Active and total nodules; Organic agriculture; Vermicompost; Wastewater sludge
Funding
- Fondos Mixtos Conacyt Gobierno del Estado de Mexico [EDOMEX-2005-c01-19]
- Semarnat project [2002-C01-0054]
- department of Biotechnology and Bioengineering (Cinvestav, Mexico)
- CONACyT
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Wastewater sludge can be used to fertilize crops, especially after vermicomposting (composting with earthworms to reduce pathogens). How wastewater sludge or vermicompost affects bean (Phaseolus vulgaris L) growth is still largely unknown. In this study the effect of different forms of N fertilizer on common bean plant characteristics and yield were investigated in a Typic Fragiudepts (sandy loam) soil under greenhouse conditions. Beans were fertilized with wastewater sludge, or wastewater Sludge vermicompost, or urea, or grown in unamended soil, while plant characteristics and yield were monitored (the unamended soil had no fertilization). Yields of common bean plants cultivated in unamended soil or soil amended with urea were lower than those cultivated in wastewater sludge-amended soil. Application of vermicompost further improved plant development and increased yield compared with beans cultivated in wastewater amended soil. It was found that application of organic waste products improved growth and yield of bean plants compared to those amended with inorganic fertilizer. (C) 2009 Elsevier Ltd. All rights reserved.
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