A Risk‐Based Soil Health Approach to Management of Soil Lead

Author(s):  
Nicholas T. Basta ◽  
Alyssa M. Zearley ◽  
Jeffory A. Hattey ◽  
Douglas L. Karlen
Keyword(s):  
2018 ◽  
Vol 9 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Tehreem Aslam ◽  
Ambreen Ahmed

In today’s world, environment is exposed to lead due to various anthropogenic activities. It adversely affects plants as well as microorganisms by disturbing soil health and fertility. Bioremediation is a technique used to sequester heavy metals from the contaminated soil and it can be used to decontaminate the polluted soil. Lead-tolerant plant health promoting rhizobacteria (PHPR) can be used to enhance the efficacy of lead remediation. Lead uptake can be enhanced through bacteria by modifying root structure, secreting metal sequestering molecules in rhizosphere and alleviating lead induced phytotoxicity. For this purpose, lead-resistant auxin-producing bacteria were isolated from the rhizosphere of some plants. These auxin-producing lead-tolerant bacteria were used to treat Zea mays both in the presence and absence of lead-stress under laboratory conditions and its impact on plant growth and biochemical parameters of Zea mays were analysed.


2020 ◽  
Vol 11 (3) ◽  
pp. 274-286
Author(s):  
Ankita Begam ◽  
◽  
Ramyajit Mondal ◽  
Susanta Dutta ◽  
Hirak Banerjee ◽  
...  
Keyword(s):  

2018 ◽  
Vol 7 (2) ◽  
pp. 42-46
Author(s):  
Dmytro Kachan

Abstract Technical support of producers of agrarian products has always been and will remain a topical issue in realities of agrarian sector of Ukraine. In recent years, integrated forms of agricultural enterprises have become more widespread, which make it possible to increase and renew a machine-tractor park of their participants. In course of study four main technologies of soil cultivation and their impact were considered, an amount of necessary machinery and equipment, energy and labor costs, and impact on quality indicators of soil health. Also, main organizational forms of enterprises that provide equipment rental services or perform fieldwork were analyzed. Proposals were made regarding a merger of existing enterprises into agro technical centers, which would increase an efficiency of their functioning and cover functions of regional self-government. Also, the most common forms of machinery usage by agricultural enterprises were considered.


Author(s):  
Mark Licht ◽  
Liz Juchems ◽  
Jacqueline Comito ◽  
Matthew Helmers ◽  
Sarah Carlson
Keyword(s):  

Author(s):  
Mark Licht ◽  
Liz Juchems ◽  
Jacqueline Comito ◽  
Matthew Helmers ◽  
Sarah Carlson
Keyword(s):  

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