Physical Sciences and Mathematics Commons^™

Groundwater Levels In Nebraska, 1969, C. F. Keech

Conservation and Survey Division

No abstract provided.

Ground Water Atlas Of Nebraska (June 1969), V. H. Dreeszen, J. A. Elder, E. C. Weakly, E. C. Reed, G. R. Svoboda

Conservation and Survey Division

No abstract provided.

Nebraska's Water Supply Map Including Groundwater In Storage, Total Water Withdrawals, Precipitation, And Outflow As Of 1969

Conservation and Survey Division

No abstract provided.

New Members Of The Gering Formation (Miocene) In Western Nebraska, Including A Geological Map Of Wildcat Ridge And Related Outliers, Carl F. Vondra, C. Bertrand Schultz, Thompson M. Stout

Conservation and Survey Division

No abstract provided.

Lancaster County, Nebraska Soils -- Geology Field Trip, Conservation Survey Division

Conservation and Survey Division

No abstract provided.

Water Levels In Observation Wells In Nebraska, 1967, C.F. Keech

Conservation and Survey Division

No abstract provided.

Groundwater Data Polk County, Nebraska, F.A. Smith, E.C. Weakly

Conservation and Survey Division

No abstract provided.

Tb32: Evaluation Of Soil Sites For White Pine In Maine, Kenneth G. Stratton, Roland A. Struchtemeyer

Technical Bulletins

To understand environmental combinations required to produce high-quality white pine, studies of both the species and its sites have been undertaken. Increased demands on land use have also stimulated the search for species and varieties of trees that will best adapt themselves to the relatively permanent factors of the site. The purpose of this study, as undertaken originally in 1962, was to add to the basic knowledge of soil factors controlling tree growth and specifically, provide information for evaluation of soil-site quality or white pine. This investigation was designed to consider a wide range of stands, sites, and soil characteristics.

Tb31: The Chemical Properties Of Seven Agricultural Soil Series And Their Relationship To Soil Fertility, Frederick E. Hutchinson

Technical Bulletins

In recognition of the importance of soil in a crop and forest production program, the Maine Agricultural Experiment Station initiated a research project in 1962 to determine the chemical properties of seven important agricultural soil series found in the state (Bangor, Caribou, Charlton, Conant, Buxton, Plaisted, Thorndike). The ultimate goal of the research was to relate the chemical properties of the soil series to the most appropriate fertility practices for their wise economic use.

Tb29: Soil-Water, Chemical And Physical Characteristics Of Eight Soil Series In Maine, R. V. Rourke, C. Beek

Technical Bulletins

Eight soil series (Adams, Berkshire, Buxton, Colbath, Creasey, Hartland, Peru, Winooski) were sampled, each at five locations. The soil was sampled and analyzed on a horizon basis. Characteristics measured were organic carbon, moisture retention, water movement, particle size distribution, volume of coarse fragments, bulk density, soil reaction, exchangeable bases and exchangeable acidity. These data are important in the classification and interpretation of the soil resources of Maine.

West Midlands Development : Erosion Prevention And Control, G W. Spencer

Journal of the Department of Agriculture, Western Australia, Series 4

THE prevention of soil erosion is essentially a matter of using each soil according to its potential, and treating it according to its needs.

Good land use and sound management practices are the best preventive measures.

Copper, Zinc And Molybdenum Fertilizers For New Land Crops And Pastures : 1969, J W. Gartrell, R. N. Glencross

Journal of the Department of Agriculture, Western Australia, Series 4

Four years of intensive research into soil deficiencies in developing areas have resulted in a more comprehensive understanding of the need for trace elements in Western Australia.

Procedure And Structure For An Instructional Laboratory Which Supplements Research, R. S. Adams Jr.

Journal of the Minnesota Academy of Science

This paper describes the organization of a laboratory course in Soil Chemical Analysis. Students select and pursue small research problems to gain experience in the soil analyses that are discussed in lecture and required in the laboratory. Involvement of the class in an actual research problem proved challenging to both the instructor and the class. The data obtained often supplemented current departmental research. Individual projects were found to be easier to supervise than team problems. This paper reports results of a team project examining parameters of a pot experiment. Shape of the pot, methods of watering, methods of fertilizing, and …

West Midlands Development : The Interpretation Of Lands Department Soil Maps Of The West Midlands Area, T C. Stoneman

Journal of the Department of Agriculture, Western Australia, Series 4

Before most Crown land in the West Midlands area was released, Lands Department survey parties examined and mapped the soils using a soil classification system based on technical advice from the Department of Agriculture.

West Midlands Development : Fertilizers For The West Midlands, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

FARMING the light lands of the West Midland area would be impossible without fertilisers.

Most light land areas are inherently very low in phosphate and also require nitrogen.

The nitrogen can come from fertiliser for cereal crops, or can be built up by growing appropriate legume pasture plants such as clovers and lupins.

West Midlands Development : Cereals For The West Midlands, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

THE sandplain soils and climate of the West Midlands area are primarily suited to grazing.

However, the place of cereals is receiving a great deal of attention in view of their advantages in the early stages of development, and the need for the diversification of farm production.

Multiple Cropping Will Increase The Erosion Hazard, W J. Burdass

Journal of the Department of Agriculture, Western Australia, Series 4

WITH the low price of wool and the price of wheat high in comparison, farmers need little encouragement to increase their acreage of crops.

Unfortunately with increased cropping comes the risk of increased erosion—unless there is a simultaneous increase in the use of conservation practices.

West Midlands Development : Selection Of Areas For Development, J A. Swarts

Journal of the Department of Agriculture, Western Australia, Series 4

BEFORE commencing any clearing or fencing on a new property it is most important to carefully select those areas which are to be developed first.

West Midlands Development : Pastures For Sandplain Soils, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

TRIALS at the Badgingarra Research Station have indicated that many pasture species will grow in the West Midlands area.

Choice of the species most suited to any particular locality will be influenced by soil type, rainfall, grazing characteristics and possible ill-effects on stock.

The following species have been recommended.

The Ord River Regeneration Project. 2. Dealing With The Problem, K Fitzgerald

Journal of the Department of Agriculture, Western Australia, Series 4

THE PROGRAMME of protective and remedial work being undertaken in the Ord River catchment area had as its major objective the re-establishment of perennial vegetation, as a means of controlling erosion and reducing the silt load of the rivers. It is now in its seventh year of operation.

West Midlands Development : Farm Planning, G W. Spencer

Journal of the Department of Agriculture, Western Australia, Series 4

FARM planning relates to the development and sub-division of a property in such a way that it is possible to obtain the safest, most efficient, and most practical use of every acre of land.

West Midlands Development : Water Supplies In The West Midlands, I A F Laing

Journal of the Department of Agriculture, Western Australia, Series 4

IF it is practical and economic to develop both surface and underground supplies, the aim on each farm should be to provide half the farm water requirement from dams, and the other half from bores.

Description Of Nebraska's Common Rocks, Raymond Burchett

Conservation and Survey Division

This one page information sheet lists names of common rocks found in Nebraska. It also includes a brief description and locations where these common rocks may be found.

Directory Of Nebraska Quarries, Pits And Mines (1968), R. R. Burchett

Conservation and Survey Division

No abstract provided.

Nebraska Groundwater Level (Decline & Rise), 1968

Conservation and Survey Division

No abstract provided.

Acres Irrigated In Nebraska- Past And Present

Conservation and Survey Division

No abstract provided.

The Nitrate Hazard In Well Water: With Special Reference To Holt County, Nebraska., Richard A. Engberg

Conservation and Survey Division

No abstract provided.

Stratigraphic Cross Section Of Paleozoic Rocks Of Nebraska, Russell Smith, Raymond Burchett

Conservation and Survey Division

No abstract provided.

The Interaction Between Water Movement, Solute Uptake, And Respirational Energy In Plant Roots, Mohamed Sadek Tawakol

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Sunflower plants (Helianthus annus, var. Russian mammoth) were grown in Hogland nutrient solution. The roots (after being subjected to treatments with either respiratory inhibitors or respiratory stimulators) were used to measure the flux of water J_w, flux of solute J_s , and the rate of respiration Jo.

The thermodynamic theory of irreversible processes was used to examine the interaction between fluxes, and the changes in conductivity under different treatments. The rate equations for a root membrane of unit thickness were developed as:

J_w = L_wwV_w∆p + L_wsRT ln …

The Influence Of Thermo-Gradients Upon Water Movement And Retention In Unsaturated Soils, Jose V. Salazar

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Temperature differences of about 5, 10, and 15 V, were applied to uniformly packed and insulated horizontal column of Millville silt loam soil using mean temperatures near 13, 14, 15, 16, 17, 18, 19, 20 and 23.5 C. The temperature distribution along the soil column was determined using copper constantan thermocouples. Soil samples were taken to determine volumetric moisture content, and soil water potential, using the vapor pressure psychometer technique. The thermodynamic flow equation of Taylor and Cary, (1964) was used to calculate the hydro-thermal transfer coefficient (ß) as given by:

-ß = d(μ_w)_T / dlnT

where …