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1977

Agriculture

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Articles 121 - 134 of 134

Full-Text Articles in Life Sciences

Some Individual Plant Biomass Values From Northeastern Minnesota, Lewis F. Ohmann, David F. Grigal Jan 1977

Some Individual Plant Biomass Values From Northeastern Minnesota, Lewis F. Ohmann, David F. Grigal

Aspen Bibliography

No abstract provided.


Biomasse D'Un Peuplement De Peuplier Faux-Tremble Age Six Ans, René Doucet Jan 1977

Biomasse D'Un Peuplement De Peuplier Faux-Tremble Age Six Ans, René Doucet

Aspen Bibliography

The establishment of an experiment designed to study the effect of thinning and fertilization in a 6 year-old trembling aspen stand, provided the opportunity to determine the mass of the standing crop present at the age.


Movement Of Soil Nitrate Through A Pembroke Soil As Affected By Tillage Method And Time Of Nitrogen Application, Noel T. Johnston Jan 1977

Movement Of Soil Nitrate Through A Pembroke Soil As Affected By Tillage Method And Time Of Nitrogen Application, Noel T. Johnston

Masters Theses & Specialist Projects

Of all the plant nutrients, nitrogen has been subjected to the most extensive study. The amount of inorganic nitrogen in the soil is small while the quantity needed annually by crops is comparatively large. Of the macronutrients usually applied in commercial fertilizers, nitrogen seems to have the quickest and most pronounced effect on plant growth.

In applying the nitrogen fertilizer for crop use, one must be concerned with placement, form, and availability, and with keeping the fertilizer where it is placed throughout the critical part of the growing season. The nitrogen supply molded by non-leguminous plants is of extreme importance …


Boulware Family Papers - Accession 102, Thomas Mccullough Boulware, James Richmond Boulware Jan 1977

Boulware Family Papers - Accession 102, Thomas Mccullough Boulware, James Richmond Boulware

Manuscript Collection

The Boulware Family Papers consist of photocopies of a plantation journal (302 pages) kept by Thomas McCullough Boulware I (1829-1889) and a genealogy of the Boulware family written by James Richmond Boulware II of Lakeland, Florida, in 1948. The journal concerns the Blackstocks Plantation in Chester County, South Carolina and subjects include the planting of crops and farming of land; family events, such as deaths, births and marriages; family travel and vacations; church affairs, including the local temperance league; land sales; free black and northerners in Chester County after the Civil War.


Vegetation And Environmental Features Of Forest And Range Ecosystems, George A. Garrison, Ardell J. Bjugstad, Don A. Duncan, Mont E. Lewis, Dixie R. Smith Jan 1977

Vegetation And Environmental Features Of Forest And Range Ecosystems, George A. Garrison, Ardell J. Bjugstad, Don A. Duncan, Mont E. Lewis, Dixie R. Smith

Aspen Bibliography

This is one of the reports developed as part of the Forest-Range Environmental Study (FRES) of the Forest Service, U.S. Department of Agriculture. This report presents descriptive sketches of 34 soil-vegetation units, called ecosystems. These cover all the land area of the 48 contiguous States.


Minimum Tillage For Crop Planting, Geoffrey A. Pearce Jan 1977

Minimum Tillage For Crop Planting, Geoffrey A. Pearce

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

this article is condensed from a report of studies of minimum tillage systems and research in the United Kingdom and North america during 1976.

The author, Mr Geoff Pearce, is a Senior Research Officer in the Department of Agriculture's Weed Agronomy Section. He has been associated with reduced tillage research in Western Australia for several years and undertook the study tour to gain the benefit of intensive overseas research on the subject.


Cost Of Farm Water Supplies : Conclusions From Surveys, I A F Laing Jan 1977

Cost Of Farm Water Supplies : Conclusions From Surveys, I A F Laing

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

The Department of Agriculture, in conjunction with the Farm Water Supply Advisory Committee, has conducted farm wster supply surveys in many districts in the wheatbelt.

The aim of the surveys was to collect data to assess the existing water supplies, the potential for further water supply developments and to compare the relative difficulty of water supply development in different localities.


B741: Structure, Conduct, And Performance Of The Commercial Campground Industry In Maine Part Ii: Industry Conduct And Performance, Louis W. Pompi, George J. Seel Jan 1977

B741: Structure, Conduct, And Performance Of The Commercial Campground Industry In Maine Part Ii: Industry Conduct And Performance, Louis W. Pompi, George J. Seel

Bulletins

This study deals specifically with the privately owned and operated commercial campground industry in Maine. The general goals of the research are: 1. To assemble basic, quantitative data for Maine's commercial campground industry. 2. To analyze these data for the purpose of providing detailed information, having implications for both public policy formulation and the management of new and existing campground firms, on the structure, conduct and performance of the industry.


Scrapbook 4/76-5/77, Mandarin Garden Club Jan 1977

Scrapbook 4/76-5/77, Mandarin Garden Club

Mandarin Garden Club Scrapbooks

Scrapbook includes images, club news and news clippings. Cover material: Leather Size: 11.75" x 10 x 1.0625"


Forest Insect And Disease Management : Aspen Mortality At The Maroon Lake Campground, David W. Johnson, Thomas E. Hinds Jan 1977

Forest Insect And Disease Management : Aspen Mortality At The Maroon Lake Campground, David W. Johnson, Thomas E. Hinds

Aspen Bibliography

At the request of the White River National Forest, Dave Johnson, Plant Pathologist, FI&DM and Tom Hinds, Plant Pathologist, RMFRES, made an evaluation of aspen mortality in the Maroon Lake Campground, Aspen Ranger District during June 13 to 15, 1977. Previously, Hinds (1976) reported accelerated aspen loss in 17 campgrounds, including Maroon Lake, located throughout Colorado and New Mexico (Fig. 1).


Jack Pine And Aspen Forest Floors In Northeastern Minnesota, Robert M. Loomis Jan 1977

Jack Pine And Aspen Forest Floors In Northeastern Minnesota, Robert M. Loomis

Aspen Bibliography

Characteristics of upland forest floors under mature jack pine and aspen in northeastern Minnesota were investigated.


Biomass Estimation For Some Shrubs From Northeastern Minnesota, David F. Grigal, Lewis F. Ohmann Jan 1977

Biomass Estimation For Some Shrubs From Northeastern Minnesota, David F. Grigal, Lewis F. Ohmann

Aspen Bibliography

Biomass prediction equations were developed for 23 northeastern Minnesota shrub species. The allometric function was used to predict leaf, current annual woody twig, stem, and total woody biomass (dry grams), using stem diameter class estimated to the nearest 0.25 cm class at 15 cm above ground level as the independent variable.


Natural Regeneration Of Northern Hardwoods In The Northern Great Lakes Region, Carl H. Tubbs Jan 1977

Natural Regeneration Of Northern Hardwoods In The Northern Great Lakes Region, Carl H. Tubbs

Aspen Bibliography

The forest types collectively known as "northern hardwoods" (Quigley and Babcock 1969) occupy nearly 100 million acres in eastern North America.


Mary Johnston Gates Papers - Accession 110, Mary Johnston Gates Jan 1977

Mary Johnston Gates Papers - Accession 110, Mary Johnston Gates

Manuscript Collection

The Mary Johnston Gates Papers consist of correspondence, minutes, histories, financial records, program notes, newspaper clippings, photographs, scrapbooks, and reference material, relating to the South Carolina Extension Homemakers’ Council (1930-1976), Bethel Home Demonstration Club (1941-1975), the National Extension Homemakers’ Council (1948-1976), the Associated Country Women of the World (1968-1976) and the South Carolina Agricultural County Extension Work (1928-1968) . There is also a 16mm film describing the dedication ceremonies of the Bethel Home Demonstration Club of Sumter, South Carolina, the first of its kind in the United States. Correspondents include Strom Thurmond, US Senator from South Carolina; Donald Russell, former …