Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 18 of 18

Full-Text Articles in Life Sciences

Northeast Research Station Watertown, South Dakota Annual Progress Report, 1981, Agricultural Experiment Station, Plant Science Department Dec 1981

Northeast Research Station Watertown, South Dakota Annual Progress Report, 1981, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1981 annual progress report for the Northeast Research Station in Watertown, South Dakota. This report is issued by the South Dakota Agricultural Experiment Station and the South Dakota State University Agronomy and Plant Pathology Department. This report includes information on the 1981 crop season, soybean variety and populations study, forage production, date planning of various crops, sunflow trials, chemical control of stalk-boring insects in sunflowers, grain variety trials, rainfall studies in sunflowers.


West River Agricultural Research And Extension Center Progress Report, 1981, Agricultural Experiment Station Dec 1981

West River Agricultural Research And Extension Center Progress Report, 1981, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1981 annual progress report of the West River Crops Soils Research and Extension Center, South Dakota Agricultural Experiment Station. This report includes: a weather summary, small grain variety trials, sorghum variety testing, management, tillage and cultural practices, and information on developing a system of chemical aid fallow.


Southeast South Dakota Experiment Farm Annual Progress Report, 1981, Agricultural Experiment Station Dec 1981

Southeast South Dakota Experiment Farm Annual Progress Report, 1981, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This twenty-first annual report of the research program at the Southeast South Dakota Experiment Farm has special significance for those engaged in agriculture and the agriculturally related businesses in the nine county area of southeast South Dakota. Reports in this document include information on: temperatures and precipitation data, corn production and performance, soybean research and planting, crop rotation, sorghum, small grains, and pest control.


South Dakota Farm And Home Research, South Dakota State University Oct 1981

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director’s Comment [p] 2 “what price on comfort and beauty and vegetable gardens? What price on a windbreak? You might be surprised “
Honor to a sorghum scientist [P] 3 “ sorghum growing in South Dakota changed direction forever after Cliff Franzke’s remarkable discoveries in breeding plots“
Shut down? No way! [p] 5 “ Even if demand for fuels alcohol is at ‘simmer,’ SDSU’s plant is alive and brewing, ready for next go-round”
Fighting vandalism [p] 10 “Lighting, locking, and identification are main weapons against rural crime but too few of us follow up, study says”
Molite…the research [p] 13 …


South Dakota Farm And Home Research, South Dakota State University Jul 1981

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director’s Comment [p] 2 “We intend to meet the challenges you have given us. Like you, we are eager for the next 100 years”
Aphids on small grain [p] 5 “a lot of the spraying aphids on mature grain needed, but plants need close watching at either stages”
Broadcasting birds [p] 6 “Researchers ‘with their ears on ‘followed gray partridge for 2 years, found best places for birds in diversified cropping “
Depth gauge [p] 9 “save money, build this farm from things you’ve got laying around. Even if you don’t fish, you’ll be able to think up a substitution” …


Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 1981, Agricultural Experiment Station Jun 1981

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 1981, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1981 progress report for the Central Crops and Soils Research Station at Highmore, South Dakota State College. This document represents the research conducted at the Station during the 1981 crop season including: weather data, crop rotation, hay haylage and silage production, plant introduction, safflower trials, small grain trials, tests of winter wheat, crop experiments, chemical control of stalk-boring insects in sunflowers, ram test station results.


Wentworth Cooperative Terminal, Inc. Feasibility Analysis, Charles Lamberton May 1981

Wentworth Cooperative Terminal, Inc. Feasibility Analysis, Charles Lamberton

Economics Research Reports

Four local cooperatives have agreed to purchase the elevator at Wentworth, South Dakota, and form a federated cooperative at Wentworth. The Wentworth facility consists of two separate elevators. The main elevator is located on the former Milwaukee Road branchline from Sioux Falls Junction to Madison. The elevator and two annexes have a capacity of approximately 120,000 bushels. A warehouse and frame quonset add approximately 150,000 bushels of storage capacity. A separate office building and truck scale are at the site. The west elevator is a smaller facility with about 53,000 bushels of storage capacity. It is located threeblockswest of the …


South Dakota Farm And Home Research, South Dakota State University Apr 1981

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director’s Comments [p] 2 “If it doesn’t seem a good time to celebrate, think back 100 years. Times weren’t good then, either”
Diet and pills [p] 3 “schoolkids’ diaries held no surprises; some needed extra vitamins and minerals, some didn’t, some were taking wrong ones”
Sclerotinia [p] 7 “If these diseases move in, beware. They’ll limit sunflower production unless we find resistant varieties “
Ordway Prairie [p] 10 “A preserve that won’t be ‘preserved,’ Ordway is a bit of nostalgia, a key to future, and a ‘managed’ Prairie “
No germs [p] 14 “Mother and babies-nine of them-are doing fine; …


1981 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University Mar 1981

1981 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International Agricultural Exposition Catalogs

No abstract provided.


Alfalfa Seed Production, Lyle A. Derscheid, Robert J. Walstrom Jan 1981

Alfalfa Seed Production, Lyle A. Derscheid, Robert J. Walstrom

SDSU Extension Circulars

Alfalfa seed has high market value: producing certified adapted seed can become a more important enterprise for some South Dakota farmers. Around 100,000 acres are harvested for seed each year, but tho yield per acre is relatively low. Most producers harvest seed on a hit-and-miss basis. Only a few treat alfalfa seed as a major crop. Much of the alfalfa seed planted in South Dakota is raised in southern Idaho, eastern Oregon, southeastern Washington, and the San Joaquin Valley of California. But the acreage of certified seed of varieties recommended for South Dakota is gradually shrinking in western states. These …


Plant Science : Agronomy, Plant Pathology, Entomology At South Dakota State University : A Centennial Report, Lyle A. Derscheid Jan 1981

Plant Science : Agronomy, Plant Pathology, Entomology At South Dakota State University : A Centennial Report, Lyle A. Derscheid

State, University and Departmental Histories

Subject Headings:
South Dakota State University. Plant Science Department -- History South Dakota State University -- History Agricultural education -- South Dakota -- Brookings -- History Agriculture -- Research -- South Dakota -- History Agronomy -- Research -- South Dakota -- History Plant diseases -- Research -- South Dakota -- History Entomology -- Research -- South Dakota -- History Agriculturists -- South Dakota -- Biography Botanists -- South Dakota -- Biography



South Dakota Farm And Home Research, South Dakota State University Jan 1981

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Money in the bank [p] 3 “Soil analysis –it’s basic. The Soil Lab provides the services for your minimum effort, your maximum profit”
Cottonwood [p] 7 “scientists enthusiastic about research with potential to double range carrying capacity”
Measuring biomass [p] 11 “developing new instruments and techniques could speed research results. Answer ‘down the road’
Manageable shelterbelts [p] 12 “Twin row-high density design promises maximum access, height, and ground level density”
Dawn and Rita [p] 14 “New hard winter wheats show promise for disease resistance and high yield”
Long-term solutions [p] 17 “Success in corn breeding is hard won. Developing population …


Preservative Effects Of Covering And Propionic Acid On Alfalfa Haylage In Bunker Silos, Thomas Jonathan Oelberg Jan 1981

Preservative Effects Of Covering And Propionic Acid On Alfalfa Haylage In Bunker Silos, Thomas Jonathan Oelberg

Electronic Theses and Dissertations

The preservation efficiency of covering alfalfa haylage with black plastic (polyethylene) and/or treating haylage with propionic acid was studied in two trials. Experiment 1 was designed to evaluate the influence of both covering and treatment with propionic acid on haylage chemical composition and heifer growth. In experiment 1, prop ionic acid was administered to the haylage at the chopper at 0.02% of the fresh forage weight. Chemical composition and ensiling temperature of the haylage were monitored and animal growth was measured with 16 Holstein heifers. Covered haylage was superior to treated haylage in quality as measured by chemical analyses and …


Studies On Beneficial And Adverse Effects Of Dietary Buffers For Lambs, Jong Kyu Ha Jan 1981

Studies On Beneficial And Adverse Effects Of Dietary Buffers For Lambs, Jong Kyu Ha

Electronic Theses and Dissertations

Experiments using lambs were conducted to study the effects of buffers or roughages against acidosis occurring during rapid dietary changes. Experiments using rats were conducted to investigate vitamin A and thiamin stability and/or utilization as influenced by bentonite. Incubating rumen fluid in vitro at a pH lower than 6 reduced volatile fatty acid (VFA) production and increased lactate accumulation. Limestone or bentonite at levels of 2% in 92% concentrate diets had little effect on feed intake or rumen and blood parameters during a 7-day treatment period using rumen-canulated sheep. However, 2% NaHCO3 increased rumen pH and feed intake on …


Lactase Activity In Steers Fed Large Amounts Of Dried Whey, Kenneth J. King Jan 1981

Lactase Activity In Steers Fed Large Amounts Of Dried Whey, Kenneth J. King

Electronic Theses and Dissertations

Large amounts of dried whole whey (86% of concentrate mix, 60% of total dry matter intake) were fed to four Holstein steers in place of corn and soybean meal in the control diet to evaluate the extent and site of lactose digestion in the ruminant's digestive tract. Diets consisted of 70% of the dry matter as concentrate mix and 30% as corn silage fed ad libitum as a total mixed ration. Weight gains and dry matter intakes were similar for steers fed dried whole whey or control diets. Samples of rumen contents from steers fed dried whole whey contained more …


The Effects Of Rancid Milk On Cheddar Cheese, Shane Thomas Mcdonald Jan 1981

The Effects Of Rancid Milk On Cheddar Cheese, Shane Thomas Mcdonald

Electronic Theses and Dissertations

One of the most serious defects .of fluid milk is hydrolytic rancidity. Although not a new problem, recent practices in the dairy industry have increased its incidence. On the farm, the use of pipeline milking and transferring systems, in conjunction with bulk cooling and storage, involves excessive agitation and foaming of the raw milk. Both agitation and foaming enhance the development of rancidity. Additional agitation occurs when milk is pumped into storage silos, and pumped about the plant f or processing. Dairy processing facilities are becoming more centralized. Hence, raw milk must be transported longer distances to the dairy plants. …


Hydrolyzed-Lactose Whey And Nonfat Dry Milk In Ice Cream, Mohammed Serajul Islam Jan 1981

Hydrolyzed-Lactose Whey And Nonfat Dry Milk In Ice Cream, Mohammed Serajul Islam

Electronic Theses and Dissertations

Sweet dry whey was used to replace 25% and 50% of nonfat dry milk solids in ice cream mix. Forty-five batches experimental and control lots of vanilla ice cream were manufactured. A commercial lactase was used to hydrolyze lactose to over 90% conversion and the lactase was inactivated after hydrolysis. The extent of lactose hydrolysis in the mix was adjusted to 50% or 75% by blending non-hydrolyzed nonfat dry milk and whey solids with hydrolyzed preparations. Extra sweetness of the conversion products permitted reduction of sucrose by 6.25% and 12.5%, respectively, in the 50% and 75% hydrolyzed lactose ice cream …


Dye Marking Of Antibiotics Used In Treatment Of Mastitis, Nancy Fairbank Novak Jan 1981

Dye Marking Of Antibiotics Used In Treatment Of Mastitis, Nancy Fairbank Novak

Electronic Theses and Dissertations

The National Mastitis Council, Inc. defines mastitis as the infection of udder tissues (74). Mastitis is the most costly disease affecting dairy cows; many people do not realize the considerable losses due to mastitis (6). A reasonable estimate of the prevalence of mastitis is 50% of cows infected at any time (62); cows in the average herd contract clinical mastitis 1.5 times per year (74). The minimum antibiotic treatments per case of mastitis is two; with approximately 11 million dairy cows in the United States, the annual minimum number of antibiotic treatments is 33 million. In South Dakota, with nearly …