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Soil Science

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Articles 11821 - 11850 of 11973

Full-Text Articles in Physical Sciences and Mathematics

A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood May 1938

A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood

Nebraska Agricultural Experiment Station: Historical Research Bulletins

It is the object of this paper to present a method for classifying and evaluating the soils as mapped in regular soil surveys on the basis of land types, which are here defined as areas having reasonably similar productivity and use suitabilities. The standards used to differentiate land types will vary according to the desired objectives, but any material difference in yield, or in practices necessary to maintain a desirable level of productivity will justify recognition of land types. The proposed procedure involves a more detailed study of the influence which soils, slope, erosion, and drainage have on specific crops …


Infiltration And Capillary Rise In Sandy Soils, Wallace M. Johnson Apr 1938

Infiltration And Capillary Rise In Sandy Soils, Wallace M. Johnson

Journal of the Minnesota Academy of Science

No abstract provided.


Characteristics Of Some Forest Soils Developed On The Young Red (Patrician) Drift, C. O. Rost, Olaf C. Soine Apr 1938

Characteristics Of Some Forest Soils Developed On The Young Red (Patrician) Drift, C. O. Rost, Olaf C. Soine

Journal of the Minnesota Academy of Science

No abstract provided.


The Butter Industry Of Nebraska, Walter Kollmorgen Mar 1938

The Butter Industry Of Nebraska, Walter Kollmorgen

Conservation and Survey Division

No abstract provided.


Correlation Of Formations Drilled In The Midland Forester Well Near Fremont, Nebraska, E. C. Reed, G. E. Condra Jan 1938

Correlation Of Formations Drilled In The Midland Forester Well Near Fremont, Nebraska, E. C. Reed, G. E. Condra

Conservation and Survey Division

No abstract provided.


The Redfield Anticline Of Nebraska And Iowa, G. E. Condra, E. C. Reed Jan 1938

The Redfield Anticline Of Nebraska And Iowa, G. E. Condra, E. C. Reed

Conservation and Survey Division

No abstract provided.


The Milk Industry Of Nebraska, Walter Kollmorgen Dec 1937

The Milk Industry Of Nebraska, Walter Kollmorgen

Conservation and Survey Division

No abstract provided.


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 …


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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-May/June 1993 Jan 1933

Resource News-May/June 1993

Conservation and Survey Division

No abstract provided.


Resource News-November/December 1993 Jan 1933

Resource News-November/December 1993

Conservation and Survey Division

No abstract provided.


Resource News-January/February 1993 Jan 1933

Resource News-January/February 1993

Conservation and Survey Division

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

No abstract provided.