Life Sciences Commons^™

G05-1582 How To Reduce Heat Stress In Dairy Cattle, Jeffrey F. Keown, Paul J. Kononoff, Richard J. Grant

University of Nebraska-Lincoln Extension: Historical Materials

Four ways to reduce heat stress and maintain production and fertility in dairy cattle.

Heat stress is one of the leading causes of decreased production and fertility in Nebrasks dairy cattle during summer months. These losses are apparent in the decreased amount of milk shipped, increased days open and decreased breedings per conception. Some heat stress is unavoidable, but effects can be minimized if certain management practices are followed.

Ec98-151 Amaranth: Production Manual For The Central United States, Jane Sooby, David D. Baltensperger, Robert Myers, David Brenner, Richard Wilson, Charles Block

University of Nebraska-Lincoln Extension: Historical Materials

Amaranth is a small-seeded grain crop with a dramatic history. Once a staple in the diet of the Aztec Indians, today it is grown throughout the world. In the United States much of the production is small-scale and organic, grown mainly for the natural and health food markets. There also has been steady use of the crop for breakfast cereals, snack foods, and mass-produced multigrain bread products. Amaranth is a broadleaf plant well-adapted to a range of arid and humid environments. As a crop it fits into many dryland rotations, performing well following wheat, proso millet, or other grain crops. …

Nf97-321 Converting Crp To Cropland In The Nebraska Panhandle, Drew J. Lyon, Tom Holman

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses techniques for converting CRP ground to cropland, including minimum tillage and crop rotations.

G96-1297 Buffalograss: An Alternative Native Grass For Turf (Revised October 1998), Terrance P. Riordan, Frederick P. Baxendale, Roch E. Gaussoin, John E. Watkins

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the benefits of buffalograss turf plantings.

Buffalograss (Buchloë dactyloides) is a native grass species which has prospered on the Great Plains for centuries. Both cyclic and prolonged droughts have allowed it to evolve water use efficiency and sod forming ability. People are using this short, fine-leaved prairie grass as an ecologically sound and energy efficient turf.

G91-1000 Guidelines For Soil Sampling, Richard B. Ferguson, K.D. Frank, Gary W. Hergert, Edwin J. Penas, Richard A. Wiese

University of Nebraska-Lincoln Extension: Historical Materials

Soil test values are no better than the soil samples you collect. Proper soil sampling procedures must be followed to obtain meaningful test results for fertilizer decisions.

The best guideline for determining fertilizer needs is a reliable analysis of a soil sample that is representative of the field. Proper procedures must be followed to collect representative soil samples.

G83-666 Breeding Soundness Examination Of Beef Bulls, James A. Gosey

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes factors to consider when evaluating a beef bull's reproductive ability. These include the reproductive tract, semen and mating desire. A herd bull that will settle a higher percentage of cows during a limited breeding season is essential to a successful cow-calf operation. In many cow-calf operations, however, the bull's role in the herd's reproductive performance is taken for granted. The bull's fertility is several times more important than that of a cow. Each bull can be expected to settle as many as 30 cows. The bull also contributes half of the genetic potential of the entire calf …

G82-601 Using Phosphorus Fertilizers Effectively, E.J. Penas, D.H. Sander

University of Nebraska-Lincoln Extension: Historical Materials

For most effective use of phosphorus, the fertilizer needs to be placed to ensure quick contact by growing roots and minimal contact with the soil.

Phosphorus (P) fertilizers are second only to nitrogen fertilizers in importance for growing crops in Nebraska. However, the principles affecting efficient phosphorus use are totally different. Nitrogen is a mobile nutrient both inside the plant and in the soil, while phosphorus moves very little in the soil. In addition, total plant phosphorus requirements are much lower than those of nitrogen. Plant leaves commonly contain ten times more nitrogen than phosphorus. However, phosphorus is concentrated in …

G82-596 Use And Management Of Micronutrient Fertilizers In Nebraska, George W. Rehm, E.J. Penas

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide focuses on the use of the micronutrients zinc and iron.

Of the 16 elements known to be essential for plant growth, 7 are used in very small amounts and are classified as micronutrients. These are zinc (Zn), iron (Fe), manganese (Mn), copper (Cu), boron (B), molybdenum (Mo) and chlorine (Cl).

Micronutrients are supplied to plants from two sources: 1) soil minerals and 2) organic matter. They are released as the soil minerals break down over a period of time by weathering. The major portion of the micronutrients made available to plants, however, probably comes from the breakdown (mineralization) …

G80-537 Reproductive Trace Anatomy And Physiology Of The Cow, Gene H. Deutscher

University of Nebraska-Lincoln Extension: Historical Materials

Knowledge of basic reproduction will help a producer to obtain higher conception rates when using estrous synchronization and/or artificial insemination. The reproductive performance of a cow herd has a great influence on the income and profit realized. A good understanding of the anatomy and physiology of the cow's reproductive system is, therefore, beneficial for successful management. Knowledge of basic reproduction will help a producer to obtain higher conception rates when using estrous synchronization and/or artificial insemination. It will also allow for a better understanding of pregnancy examinations, reproductive diseases and calving difficulty problems.

G80-536 Reproductive Trace Anatomy And Physiology Of The Bull, Gene H. Deutscher

University of Nebraska-Lincoln Extension: Historical Materials

Understanding the anatomy and physiology of the bull's reproductive tract is beneficial for proper management. Good reproductive performance of a bull is necessary to obtain a high percent calf crop. A bull must be fertile and capable of servicing a large number of cows during a short breeding season for optimum production. Understanding the anatomy and physiology of the bull's reproductive tract is beneficial for proper management. A basic knowledge of the reproductive system will also help the producer to understand fertility examinations, reproductive problems and breeding impairments.

G78-426 Popcorn Production, Nora D'Croz-Mason, Richard P. Waldren

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide addresses seed selection, soil requirements, production management, pest control, marketing and sale of popcorn.

Commercial popcorn production in the United States has always been concentrated in the Corn Belt. Iowa was the largest popcorn producer until the mid 1940s. As hybrids replaced open-pollinated varieties, popcorn production shifted to Illinois then to Indiana. During the mid 1970s popcorn production moved west, and in 1977 Nebraska became the nation's largest producer. During the 1980s popcorn acreage has fluctuated among states, but Nebraska often has had the nation's highest yield because 85 percent of its crop is irrigated.

G76-308 Principles Of Beef Cattle Selection, H.A. Fitzhugh, Jr.

University of Nebraska-Lincoln Extension: Historical Materials

Selection of superior seedstock leads to lasting genetic improvement by increasing the frequency of "desirable" genes and decreasing frequency of "undesirable" genes. The definition of "desirable" varies. Nature favors genes which improve fitness to survive and thrive in the natural environment. Man should favor genes which improve biological and economic efficiency of beef production.

The concepts, definitions, formulas and symbols that are the tools necessary for effective selection programs are discussed in this publication.

Ec31-133 The Management Of Nebraska Soils (Revised March 1936), P.H. Stewart, D.L. Gross

University of Nebraska-Lincoln Extension: Historical Materials

The agricultural lands of this country are its greatest natural resource. History points out that nations with vast areas of good farm land are most likely to prosper and survive over long periods of time. Local communities, too, prosper and flourish in proportion to the productiveness of the surrounding land. Schools, social life, and business develop best in areas where the land is productive and properly managed and conserved.

Nebraska, in common with other states, has suffered by the depletion of soil fertility. The reduction in acres in legumes and grasses, and the deplation of the organic matter in the …