• Growing fresh vegetables: Midnight sunlight & the Earth’s warmth

      Agricultural and Forestry Experiment Station, School of Agriculture and Land Resources Management, University of Alaska Fairbanks, 2009
    • Growing Small Grains in Your Garden

      Van Veldhuizen, Bob (University of Alaska Fairbanks. Agricultural and Forestry Experiment Station, 2010-02)
    • Growing Sweetcorn in Alaska's Cool Environments

      Dinkel, D. H. (School of Agriculture and Land Resources Management, Agricultural and Forestry Experiment Station, 1966-11)
      Sweet corn can be grown in Alaska's cool environments by employing clear polyethylene mulch to raise soil temperatures. Rows should be run north and south, spaced about 5 feet apart for 4-foot wide mulch. Weeds can be controlled under clear polyethylene mulch by spraying with atrazine after seeding and before mulching.
    • Growing-Degree Units For Selected Agricultural Locations In Alaska

      Branton, C. Ivan; Shaw, Robert H. (University of Alaska, Institute of Agricultural Sciences, 1973-06)
      It is well known that the rate at which a plant grows is influenced by air temperature. The problem is to define this relationship in a quantitative manner so that the information can be applied to agricultural problems. In places where growth of a particular crop is limited by the length of the growing season, an evaluation of the "heat-units" available is particularly important. Many heat-unit systems have evolved over the years, with certain advantages claimed for each. In crop production, heat unit systems are used to estimate the time required for a crop to go from one stage of development to another, usually from planting to harvest. Each heat-unit system produces a particular set of values, the values being determined by the relationship between temperature and growth that is assumed in the calculations. This paper lists heat-units available in six areas in Alaska, all having agricultural potential. The system used measures temperature in "growing-degree units" and is described in detail. Recent comparative studies of growing season and growing degree days leads to the conclusion that the temperature records taken at Big Delta may have been favorably affected by the nearness of the weather recording station to an extensive coated runway. The "flywheel" effect of this large heat sink appear to have reduced the occurrence of 32°F. night temperatures in both the spring and fall, making the growing degree accumulation unrealistic.
    • Growth and Yield of Black Spruce, Picea mariana (Mill.) B.S.Pl., in Alaska

      Rosner, Carolyn; Packee, Edmond; Ping, Chien-Lu; Maich, John C. (University of Alaska Fairbanks, School of Natural Resources and Agricultural Sciences, 2004-08)
      Black spruce, Picea mariana (Mill.) B.S.P., is largely overlooked in Alaska because of its small size and slow growth. Growth and yield information is therefore limited or nonexistent. Presented here are the first polymorphic site index (height-age) curves and height-diameter functions for predicting height and volume for Alaska black spruce. Models are accurate for trees up to 50 feet in height and 8 inches DBH. Predicted stem volumes range from 0.006 ft3 to 21.8 ft3 for trees between 0.5 and 11.5 inches DBH Sampled tree dimensions range from 5.5 to 78.0 feet tall and from 0.4 to 11.0 inches DBH. Sampled breast-height ages range from 49 to 257 years; average age-to-breast-height is 26 years. This research, although limited, also characterizes general stand-level structure and community composition for Alaska black spruce. 60 Permanent Sample Plots (PSPs) representing 20 stands were established throughout the Tanana Valley, with stand inventory conducted according to a consistent protocol. Stand densities range from 137 to 2,907 trees per acre; stand volumes ranged from 8 to 2,507 ft3 per acre. Stand density index values range from 6 to 453. Periodic remeasurement of PSPs will yield valuable information about stand evolution and community type change.
    • Growth Performance of Holstein Dairy Calves Supplemented with a Probiotic

      Windschitl, Paul M.; Randall, Kirsten M.; Brainard, Donald J. (School of Agriculture and Land Resources Management, Agricultural and Forestry Experiment Station, 1991-04)
      Administration of antibiotics in both therapeutic and sub-therapeutic doses has been the standard practice for dealing with pathogenic bacteria problems in farm animals since the 1940s. Several types of antibiotics are currently used to promote weight gain and feed efficiency in domestic livestock. There is growing concern that the use of antibiotics as growth promoters may result in the development of resistant populations of pathogenic bacteria and, in turn, influence the therapeutic use of antibiotics. The indiscriminate and improper use of antibiotics in food-producing animals could result in the presence of residues in milk, meat, and other animal food products consumed by humans. One possible alternative to antibiotics is the use of probiotics. Probiotics can be defined as “live microbial feed supplements which beneficially affect the host animal by improving its intestinal microbial balance” (Fuller, 1989). Probiotics introduce beneficial microorganisms into the gut which act to maintain optimal conditions within the gastrointestinal tract and inhibit the growth of pathogenic or other undesirable bacteria.
    • Growth Regulator Effects in Seed Propagated Begonia x Tuberhybrida

      Karlsson, Meriam G.; Werner, Jeffrey W.; Hanscom, Jan T. (School of Agriculture and Land Resources Management, Agricultural and Forestry Experiment Station, 1992-07)
      The growth regulators chlormequat (Cycocel), paclobutrazol (Bonzi), daminozide (B-Nine) and Bayleton 25WP (triadimefon) were studied for their ability to control plant height in seed propagated tuberous begonia (‘Nonstop’ begonias). Bayleton is a fungicide used for powdery mildew control that also has growth regulator effects. Two ml growth regulator solution was evenly sprayed on each plant two weeks after transplanting. Cycocel (500 parts per million [ppm], 1 mg active ingredient [a.i.] per plant) resulted in 23% shorter plants than the control plants 15 weeks after transplant. Bonzi (5 ppm, 0.01 mg a.i. per plant) treated begonias were 65% and Bayleton (150 mg•liter-1, 0.3 mg per plant) treated plants 43% shorter than the control plants. The number of flowers and shoots was severely reduced on plants treated with Bonzi or Bayleton. BNine was ineffective at the rate of 3000 ppm (6 mg a.i. per plant) for controlling plant height of seed propagated tuberous begonia.
    • Growth response of lutz spruce saplings to the removal of a herbaceous competitor and the application of fertilizer in Southeast Alaska

      Dickson, Emily; Barber, Valerie; Sparrow, Stephan; Harris, Norman (2014-08)
      Herbaceous competitor species such as fireweed can impact future survival and growth of Lutz (Picea x lutzii Little, Pinaceae) spruce saplings. Fertilizer is applied to crop trees in order to supply more nutrients to promote growth. However, fertilizer benefits competitor species as well. Literature regarding the impacts of competition for resources between fireweed and spruce saplings are lacking, but the impacts of resource competition on seedling growth and fireweed are documented as significant. Seedlings are distinguished from saplings by differences in height and/or diameter. In order to test the influence of both competitor species and added fertilizer, we analyzed growth response of Lutz spruce saplings to fireweed removal and applied fertilizer through treatments and controls using a two by two factorial experiment. Results revealed that fireweed removal had a positive effect on sapling growth response, while added fertilizer alone showed no effect on sapling growth response. I found a strong, positive correlation between soil moisture and fireweed cover. I also found a strong, positive relationship between sapling growth and soil moisture as well as sapling growth and fireweed cover. This study demonstrates that spruce saplings positively responded to fireweed removal compared to the application of fertilizer. More importantly, the overall conclusion is that when saplings are not N limited soil, moisture is the driving factor in sapling height growth. The long-term effects of harvesting an efficient nitrogen competitor species are not well known and could be detrimental to future site fertility.
    • Guidelines for the Production of Rapeseed in the Delta-Clearwater Area of Alaska

      University of Alaska Agricultural Experiment Station, 1978-04
      Experience with the production of rapeseed in Alaska is limited. The material presented in this report is for preliminary planning only. It was prepared on the basis of published Canadian research, and studies of variety trials and planting dates during 1977 in interior Alaska. These guidelines will be revised when the results of additional research and experience with rapeseed production in Alaska becomes available.
    • a handbook for Alaska's Settlers with special reference to agricultural homesteads

      Saunders, Dale; Hitchcock, Kay (University of Alaska, Alaska Agricultural Experiment Stations, 1960-06)
      Selecting a suitable homestead is not simply finding a good piece of land to farm. Personal and social needs must be met, as well as those of farm oper­ations. Since each family has different standards, goals and needs, the selection should be made by you and your family only after careful inspection and consideration.
    • Haymaking at Kenai Experiment Station

      Ross, P. H. (Government Printing Office, Washington, D.C., 1907)
      During the haymaking season the weather along the Alaskan coast is generally so unfavorable, with prolonged intervals of rain, a sun whose beams are daily growing weaker, and shortening hours of work, that the statement has often been made that the curing of hay in Alaska is impossible. A study of the weather record seems to confirm this statement. There are three conditions, however, applicable to the Cook Inlet region (and it is believed the first two at least will apply to the whole coast region) that tend to simplify the task of hay curing. First. The manner of precipitation. The rains are never dashing, but fall for the most part in a gentle drizzle. Owing to this, an ordinary cock of hay will withstand a long siege of rainy weather without becoming wet except for a distance of 3 or 4 inches from the surface. Second. The low temperature, which allows green or damp hay to remain in the cock for several days without heating or molding. Third. The southwest winds. The winds are always dry, of high velocity, and blow continuously night and day for three or four days at a time, thereby preventing dew and frost. These winds are more effective than the sun as a drying agent at this time of year. As a clear sky is almost without exception contemporary with a southwest blow, the value of these winds in haying time can be appreciated. Since the inauguration of the work at this station in 1899 the stock belonging to the station have been fed nothing but native feed. This has consisted almost exclusively of hay, and enough of it has always been cured to winter the stock comfortably. During the last two years the station has had about 25 acres under cultivation, and the bulk of this has been given over to growing grain hay. Special attention has been paid to hay curing during this time, and the following notes and deductions therefrom are written in the belief that they will be of practical value to the Alaska pioneer.
    • Head Lettuce Variety Performance - Matanuska Valley, Alaska 1996

      Dofing, Stephen M.; Walworth, James L.; Carling, Donald E. (School of Agriculture and Land Resources Management, Agricultural and Forestry Experiment Station, 1996-12)
    • Head Lettuce Variety Performance - Matanuska Valley, Alaska, 2000 and 2001

      Leiner, Roseann H. (University of Alaska Fairbanks, Agricultural and Forestry Experiment Station, 2003-09)
    • Head Lettuce Variety Performance, Matanuska Valley, Alaska 1997

      Walworth, James L.; Dofing, Stephen M.; Carling, Donald E. (School of Agriculture and Land Resources Management, Agricultural and Forestry Experiment Station, University of Alaska Fairbanks, 1997-11)
      In 1995, 27 head lettuce varieties were evaluated in a replicated study at the Palmer Research Center, and two growers’ fields in the Matanuska Valley. The 15 varieties that performed best in 1995 were selected for evaluation in 1996 and 1997. The performance of those 15 varieties in 1997 is summarized in this report. Results from the 1995 and 1996 trials may be found in UAF circulars 106 and 108 respectively.
    • Herb Evaluations 2006

      Holloway, Patricia; Matheke, Grant; Gardiner, Etta (Agricultural and Forestry Experiment Station, University of Alaska Fairbanks, 2007-02)
    • Herb Evaluations 2007

      Holloway, Patricia S.; Gardiner, Etta; Matheke, Grant (Agricultural and Forestry Experiment Station, University of Alaska Fairbanks, 2008-03)
    • Herd Management Tips to Dairymen

      Sweetman, William J. (Alaska Agricultural Experiment Station, Palmer, Alaska, 1956-01)
    • Hey! We Like Milk Too!

      Gazaway, H.P.; Marsh, Charles (Alaska Agricultural Experiment Station, University of Alaska, 1956-09)
      Increased consumption of fresh milk in Alaska's schools means stepping up imports from surplus producing Stateside milksheds.
    • A history and analysis of the efforts of the Ahtna people of South-Central Alaska to secure a priority to hunt moose on their ancestral lands

      Schacht, Eric; Todd, Susan; Holen, Davin; Fix, Peter (2015-08)
      The purpose of this study is to document the decades-long struggle of the Ahtna people of south-central Alaska to secure the priority to hunt moose in their ancestral lands. The study details the changes in moose hunting regulations in Game Management Unit 13 from the first permit hunt in 1960 to the current era as well as the changes in the number of hunters, number of moose harvests, and success of hunters by area of residence (local vs. non-local). This study summarizes changes in regulations regarding rural preference for subsistence hunters and the court cases challenging those provisions. It outlines the strategies the Ahtna have used over the years to try to secure a priority to hunt moose. It also discusses the importance of moose hunting to the culture of the Ahtna people and the cultural impacts of changes in subsistence harvest regulations. The results demonstrate that under the current management and regulatory structure, Ahtna people and other local residents of the Copper Basin are not getting enough moose and they persistently feel the pressure from non-local hunters. The Ahtna counter this by continually engaging the natural resource management and regulatory process, maintaining subsistence lifestyles, and increasing their wildlife management capacity so that in the future they will have more moose on their land and a greater ability to control this important aspect of their culture. The study also provides recommendations regarding future subsistence moose hunting regulations in the region.
    • Household buying of Fresh Milk and Dairy Products in Anchorage, Alaska

      University of Alaska Alaska Agricultural Experiment Station, 1962-04