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Articles 61 - 67 of 67

Full-Text Articles in Physical Sciences and Mathematics

The Fate Of Pesticide Residues In Soil, Russell S. Adams Jr. Jan 1967

The Fate Of Pesticide Residues In Soil, Russell S. Adams Jr.

Journal of the Minnesota Academy of Science

Pesticidal chemicals may be lost from or inactivated in soil by volatilization, leaching, sorption, chemical' degradation, microbial decomposition, or plant removal. The persistence of o pesticide in soil depends upon the chemical nature of the pesticide and certain characteristics of the soil. Soil mineral and organic colloids sorb these compounds very tightly and restrict microbial decomposition of the pesticide. Conditions favoring microbial activity in the soil also favor the disappearance of pesticide residues. Factors that contribute to the persistence of o pesticide ore the some factors that increase its persistence.


Some Pleistocene Mammalian Inhabitants Of Minnesota, Clinton R. Stauffer Apr 1945

Some Pleistocene Mammalian Inhabitants Of Minnesota, Clinton R. Stauffer

Journal of the Minnesota Academy of Science

No abstract provided.


Recent Advances In Biological Methods Of Sewage Treatment, H. O. Halvorson, George Savage, Edgar Piret Jan 1937

Recent Advances In Biological Methods Of Sewage Treatment, H. O. Halvorson, George Savage, Edgar Piret

Journal of the Minnesota Academy of Science

No abstract provided.


The Deep Well At Minneopa, Minnesota, C. W. Hall Jan 1887

The Deep Well At Minneopa, Minnesota, C. W. Hall

Journal of the Minnesota Academy of Science

No abstract provided.


The Stillwater Deep Well, A. D. Meeds Jan 1887

The Stillwater Deep Well, A. D. Meeds

Journal of the Minnesota Academy of Science

No abstract provided.


Some Analyses Of Northwestern Coals, James A. Dodge Jan 1886

Some Analyses Of Northwestern Coals, James A. Dodge

Journal of the Minnesota Academy of Science

No abstract provided.


Natural Sciences In The Public Schools, A. F. Bechdolt Dec 1882

Natural Sciences In The Public Schools, A. F. Bechdolt

Journal of the Minnesota Academy of Science

No abstract provided.