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Soil Science

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Articles 14131 - 14160 of 14281

Full-Text Articles in Physical Sciences and Mathematics

A Study Of The Equilibria Between Bentonite And The Various Replacing Agents In Alcoholic And Water Solutions, Joel E. Fletcher May 1937

A Study Of The Equilibria Between Bentonite And The Various Replacing Agents In Alcoholic And Water Solutions, Joel E. Fletcher

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Investigators in soils have long recognized the importance of the colloidal fraction of soil, and also the almost inseparable problem of replaceable bases. It is generally accepted that the replaceable base fraction of a colloid controls to a large degree the physical properties exhibited by it. Volumes of work have been written on the problem of controlling the reactions of this fraction and on studies of the properties exhibited by it when it is saturated with various cations. Each worker has proceeded in his own individual way or followed the example set by some previous worker with specific modifications.


The Effect Of Cultivation On Certain Chemical And Physical Properties Of Some South Dakota Soils, Oscar E. Olson Jan 1937

The Effect Of Cultivation On Certain Chemical And Physical Properties Of Some South Dakota Soils, Oscar E. Olson

Electronic Theses and Dissertations

Soil Nutrient losses have followed closely in the paths of advancing frontiers in agriculture. Remedies for depletion as the result of overcropping were sought by George Washington, whose interest and investigation of soil nutrient losses probably represent the earliest attention given to land exploitation in the United States, which at the present time has become a problem of national concern. Soil losses have been attributed to a number of causes , among which are cropping, erosion, leaching, burning, and rapid oxidation of organic matter in the soil. Associated with soil nutrient losses, certain significant physical and chemical changes may occur …


Correlation Of The Members Of The Shawnee Group In Southeastern Nebraska And Adjacent Areas Of Iowa, Missouri And Kansas, G. E. Condra, E. C. Reed Jan 1937

Correlation Of The Members Of The Shawnee Group In Southeastern Nebraska And Adjacent Areas Of Iowa, Missouri And Kansas, G. E. Condra, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Conservation Of Land And Water Resources Of Nebraska, G. E. Condra Dec 1936

Conservation Of Land And Water Resources Of Nebraska, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A Preliminary Study Of The Animal Ecology Of The Niobrara Game Preserve, Watson E. Beed Oct 1936

A Preliminary Study Of The Animal Ecology Of The Niobrara Game Preserve, Watson E. Beed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Soil Erosion Demonstration Areas In Southern Minnesota, R. H. Davis Apr 1936

Soil Erosion Demonstration Areas In Southern Minnesota, R. H. Davis

Journal of the Minnesota Academy of Science

No abstract provided.


An Analysis Of The Flowering Plants Of Nebraska, John Mack Winter Apr 1936

An Analysis Of The Flowering Plants Of Nebraska, John Mack Winter

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Water-Bearing Formations Of Nebraska, G. E. Condra, E. C. Reed Jan 1936

Water-Bearing Formations Of Nebraska, G. E. Condra, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Ostracoda Of The Missouri Series In Nebraska, W. R. Johnson Jan 1936

The Ostracoda Of The Missouri Series In Nebraska, W. R. Johnson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Sugar Beet Industry Of Nebraska, Esther S. Anderson Apr 1935

The Sugar Beet Industry Of Nebraska, Esther S. Anderson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Geologic Cross-Section, Forest City, Missouri To Du Bois, Nebraska, G. E. Condra Jan 1935

Geologic Cross-Section, Forest City, Missouri To Du Bois, Nebraska, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Soils Grouped According To General Productivity And Use Capabilities Jan 1935

Nebraska Soils Grouped According To General Productivity And Use Capabilities

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Permo-Pennsylvanian Section Of The Hartville Area Of Wyoming (With Implications For Nebraska), G. E. Condra, E. C. Reed Jan 1935

Permo-Pennsylvanian Section Of The Hartville Area Of Wyoming (With Implications For Nebraska), G. E. Condra, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Groundwater Level Survey In Nebraska, Herbert A. Waite Jan 1935

Groundwater Level Survey In Nebraska, Herbert A. Waite

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Thiem Method For Determining Permeability Of Water-Bearing Materials, L. K. Wenzel Jan 1935

The Thiem Method For Determining Permeability Of Water-Bearing Materials, L. K. Wenzel

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Pleistocene Geology Of Nebraska, A. L. Lugn Jan 1935

The Pleistocene Geology Of Nebraska, A. L. Lugn

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Relation Of Drouth To Water-Use In Nebraska, G. E. Condra Nov 1934

The Relation Of Drouth To Water-Use In Nebraska, G. E. Condra

George E. Condra Publications

Three severe drouths have occurred in Nebraska and adjacent states within the past eighty years, and less severe ones have come at moderately regular intervals. Their influence on the agricultural development of the state is well known, but their relation to water supply in general is not so well understood. This paper is a brief review of the relation of drouth to soil moisture, surace water, and groundwater supplies.


Land-Use Problems In Nebraska, G.E. Condra Nov 1934

Land-Use Problems In Nebraska, G.E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Geological Phases Of Soil Erosion Investigation And Control In Nebraska, G. E. Condra Jan 1934

Geological Phases Of Soil Erosion Investigation And Control In Nebraska, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Relation Of The Native Forest Cover To The Physical And Chemical Nature Of The Soils Of The Mammoth Cave National Park Area, Sheppard Walker Aug 1933

The Relation Of The Native Forest Cover To The Physical And Chemical Nature Of The Soils Of The Mammoth Cave National Park Area, Sheppard Walker

Masters Theses & Specialist Projects

This study was undertaken for the purpose of determining the relation existing between the native forest cover and the chemical and physical properties of the soils of the Mammoth Cave National Park area. The study was suggested by certain references in the literature to a correlation existing between forest cover and the geological, chemical and physical nature of soils of this area. The recent attempt at reforestation in the Mammoth Cave National Park area renders such a study timely, and it is believed that the results reported in this paper will materially aid the Mammoth Cave National Park Commission and …


Resource News-January/February 1993 Jan 1933

Resource News-January/February 1993

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource News-May/June 1993 Jan 1933

Resource News-May/June 1993

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Faunal Lists Of The Tertiary Vertebrata Of Nebraska And Adjacent Areas, H. J. Cook, M. C. Cook Jan 1933

Faunal Lists Of The Tertiary Vertebrata Of Nebraska And Adjacent Areas, H. J. Cook, M. C. Cook

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Origin Of The Place Names Of Nebraska, J.T. Link Jan 1933

The Origin Of The Place Names Of Nebraska, J.T. Link

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nautiloid Cephalopods Of The Pennsylvanian System In Mid-Continent Region, A. K. Miller, Carl O. Dunbar, G. E. Condra Jan 1933

Nautiloid Cephalopods Of The Pennsylvanian System In Mid-Continent Region, A. K. Miller, Carl O. Dunbar, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Middle River Traverse Of Iowa, G. E. Condra, J. E. Upp Jan 1933

The Middle River Traverse Of Iowa, G. E. Condra, J. E. Upp

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Grenola Formation, G. E. Condra, C. E. Busby Jan 1933

The Grenola Formation, G. E. Condra, C. E. Busby

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Missouri Valley Traverse In Iowa North Of The Jones Point Deformation, G. E. Condra Jan 1933

The Missouri Valley Traverse In Iowa North Of The Jones Point Deformation, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Red Oak-Stennett-Lewis Traverse Of Iowa, G. E. Condra Jan 1933

The Red Oak-Stennett-Lewis Traverse Of Iowa, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource News-November/December 1993 Jan 1933

Resource News-November/December 1993

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.