Cyanobacteria-Mediated Bioremediation of Problem Soils

2021 ◽  
pp. 141-152
Author(s):  
Kuttalingam Gopalasubramanian Sabarinathan ◽  
Muthukrishnan Gomathy ◽  
D. Arun Kumar ◽  
R. Kannan ◽  
K. Eraivan Arutkani Aiyanathan
Keyword(s):  
Problem Soils

Molecular Breeding of Rice for Problem Soils

Root Genomics ◽  
2010 ◽  
pp. 289-311 ◽  
Author(s):  
Abdelbagi M. Ismail ◽  
Michael J. Thomson
Keyword(s):  
Molecular Breeding ◽  
Problem Soils

Geotechnical Properties of Problem Soils Stabilized with Fly Ash and Limestone Dust in Philadelphia

2011 ◽  
Vol 23 (5) ◽  
pp. 711-716 ◽  
Author(s):  
Robert Brooks ◽  
Felix F. Udoeyo ◽  
Keerthi V. Takkalapelli
Keyword(s):  
Fly Ash ◽  
Geotechnical Properties ◽  
Problem Soils ◽  
Limestone Dust

Decreased Activity of EPTC + R-25788 Following Repeated use in Some New Zealand Soils

Weed Science ◽  
1983 ◽  
Vol 31 (6) ◽  
pp. 783-789 ◽  
Author(s):  
Anis Rahman ◽  
Trevor K. James
Keyword(s):  
Biological Activity ◽  
Weed Control ◽  
Field Trials ◽  
Level Of Activity ◽  
Previously Treated ◽  
Repeated Use ◽  
Problem Soils ◽  
Herbicide Activity ◽  
New Formulation ◽  
First Time

Greenhouse and laboratory experiments showed that the biological activity of EPTC (S-ethyl dipropylthiocarbamate) + R-25788 (N,N-diallyl-2,2-dichloroacetamide) was lost more rapidly in soils if they had been previously treated with this herbicide. Treatments which reduced or eliminated the microbial activity in the soil restored the herbicide activity in ‘problem’ soils. A combination of 2 kg/ha of the insecticide fensulfothion (diethyl-4-methylsulphinyl phenyl phosphorothionate) with EPTC + R-25788 also restored the biological activity of the herbicide. Field trials confirmed the decreased biological activity with repeated use of EPTC + R-25788; other herbicides recommended for grass weed control in corn (Zea maysL.) performed satisfactorily in these ‘problem’ soils. The performance of EPTC + R-25788 was improved by a rotation away from it for one season (using another herbicide) but the level of activity was still below that obtained in a soil treated with EPTC + R-25788 for the first time. A new formulation of EPTC + R-25788 containing a herbicide extender R-33865 (O,O-diethyl-O-phenyl phosphorothioate) was not affected by the enhanced microbiological breakdown and provided effective season-long weed control in the ‘problem’ soils.

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