Digital Commons Network^™

Groundwater Levels In Nebraska, 1982, Martin S. Johnson, Darryll T. Pederson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Soybean Response To Fertilization, Monroe Rasnake

Soil Science News and Views

When can you expect soybeans to respond to fertilization? How large is a response likely to be? How much fertilizer will be needed to obtain the maximum economic response? These are questions that College of Agriculture personnel must answer in making recommendations. Farmers should also consider these questions when deciding how much fertilizer to use.

Effects Of Surface Application Of Dairy Manure On The Infiltration Rate And Quality Of Surface Runoff, Joseph L. Taraba, I. J. Ross, John D. Bottom, Bill J. Barfield

KWRRI Research Reports

Dairy manure was surface spread on 12 ft x 12 ft plots on an established fescue pasture in the summer and fall of 1981 and 1982. The soil was a Maury silt loam. A simulated rainfall was applied to plots to test the effects of nitrogen loading rate (75, 150, and 300 #N/acre) time delay between manure application and the simulated rainfall events (0, 3, 6, 24, 48, 96 hours and a 120 hour test repeated on 0 hr plot with 300 #N/acre), and type manure (semi-solid - 1981 and liquid - 1982) on the concentrations of pollutants in the …

Annean Station Management Plan, A A. Mitchell

Resource management technical reports

Annean Station's carrying capacity has been estimated at 8,340 sheep on its 168,539 hectares. The halophyte pastures of Carnegie Land System were in good condition while those of Mileura Land System were in poor condition. The wandarrie pasture of the Belele Land System was in fair to poor condition. This system comnprises 34 per cent of Annean's area and is estimated as capable of presently carrying 2,900 stock.

Disposal Of Household Wastewater In Soils Of High Stone Content (1977-1980), E. M. Rutledge, C. R. Mote, M. S. Hirsh, H. D. Scott, D. T. Mitchell

Arkansas Water Resources Center Technical Reports

Two experimental septic tank filter fields were constructed with built-in monitoring equipment in Nixa soils. These soils contain many chert fragments and a fragipan about 60 cm deep which restricts downward water movement and is the design-limiting feature. The standard filter field (76 cm deep) was built into the fragipan and the modified standard filter field (30 cm deep) was placed above it. During 30 months' observation, the modified standard performed better than the standard filter field. Maximum rise of effluent in the standard and modified standard came within 11 and 19 cm of the soil surface, respectively. Performance of …

Nitrogen Placement For No-Till Corn, Kenneth L. Wells

Soil Science News and Views

An estimated 18 to 20 percent of all corn grown in Kentucky is no-till planted. This 400 to 500 thousand acres is directly planted into sod, residues from the previous year, or a winter cover crop. Many field trials have been conducted by University of Kentucky agronomists during the past 15 years to determine nitrogen fertilization practices best suited for this kind of corn production. These recommendations are published annually in "AGR-1 Lime and Fertilizer Recommendations," and call for 25 lbs more actual fertilizer N per acre than conventional corn. This is largely justified by: (1) a greater potential for …

Chemical Sealing Of Small Earth Dams Using Sodium Tripolyphosphate, R G. Pepper

Technical Bulletins

As the seepage rate of 3.1 mm/d was considered too high, sodium tripolyphosphate (STPP) was dissolved in the dam water in an attempt to disperse the clay and reduce the hydraulic conductivity. Application of STPP altered the original sealing layer at first and, as seepage progressed, a new seal started to form at a depth of 0.8 m below the batter. The seepage rate was reduced to 0.39 mm/d and the hydraulic conductivity of this new seal was 2.0 x 10-9 m/s.

Anhydrous Ammonia Use For Corn, William O. Thom

Soil Science News and Views

Anhydrous ammonia is the most concentrated form of nitrogen fertilizer available to corn producers in many areas of Kentucky. It is a simple chemical compound made up of one part nitrogen and three parts hydrogen (NH₃), existing as a gas at normal outdoor temperatures. This makes it necessary to store and handle the material in closed containers under pressure. The product contains 82% nitrogen, making it one of the highest analysis and most economical fertilizers available for corn production.

Current Research On Band Application Of Fertilizer To Burley Tobacco, J. L. Sims

Soil Science News and Views

Present Status: Generally, past research conducted in the United States has shown that only one-half to two-thirds as much fertilizer is required to produce maximum crop yields when the fertilizer is properly banded as when it is broadcast. However, the magnitude of plant response to banding compared to broadcast applications varies widely with soil nutrient levels, soil temperature, soil pH, and the mobility of the nutrient being applied. Greatest benefits from banding result from (a) applications to soils having low or very-low soil test levels of the nutrient in question, (b) applications to crops grown in cool climates, (3) applications …

Quality Of Legume Inoculants In Kentucky, M. Scott Smith

Soil Science News and Views

Successful and profitable production of legumes requires nodulation by Rhizobium bacteria which supply the crop with fixed N. The appropriate strains of bacteria are often absent from soils, since they do not persist without a suitable host plant. Under these conditions, that is when the specific legume crop has not been planted in the field for more than 3 or 4 years, it is necessary to inoculate the seed (or sometimes the soil) with Rhizobium.

Forage Moisture Testers, George Turner, Doug Overhults

Kentucky Alfalfa and Stored Forage Conference

The quality of forage used for feed is affected by the moisture content at which it was harvested and stored. To guess moisture content from experience or by hand squeezing and wadding is not accurate enough for today's methods of putting up hay, haylage or silage.

There are several very accurate and rapid types of sophisticated moisture indicators used in various industries, but these are too complex and costly to be considered for portable use by farmers. Other smaller instruments are also available that do a less accurate but acceptable job of determining moisture content of forage. One of these …

Alfalfa Production And Marketing — Producer Story, Reeves Davie, Alfred Davie, Gene Davie

Kentucky Alfalfa and Stored Forage Conference

Our decision to plant a hundred acres of alfalfa in the late summer of 1981 was not made hastily. Past experiences of others in the area who had grown alfalfa commercially, an economic study of the alfalfa hay situation and the declining prices of corn, wheat, and soybeans all had their affect on our decision. However, we did not anticipate the price of corn, wheat and soybeans sinking to the levels they did this past year of 1982.

An Economic Examination Of Kentucky's Potential For Alfalfa Production, W. Donald Shurley

Kentucky Alfalfa and Stored Forage Conference

In managing a farm successfully, a major decision faced by the farmer is the choice of enterprises and the level of production for each of the enterprises chosen. For each enterprise or combination of enterprises, an initial investment in land, buildings, and machinery is required. The enterprises chosen and the production levels of each enterprise must be sufficient to reward investments above their cost. Once the choice of enterprises is made and investment incurred, little flexibility exists in making changes among enterprises unless some investments are liquidated and new investments made.

Chemical Preservation Of Alfalfa Hay And Silage, Charles T. Dougherty, J. Kenneth Evans

Kentucky Alfalfa and Stored Forage Conference

A wide range of substances are being marketed throughout the forage world to enhance, preserve and otherwise modify hay and silage. Some of the products are ineffective, while the benefits of others depend on the correct application and some are used at rates far below that which is effective. Alfalfa can be made into high quality hay and silage without the use of additives if recommended practices are employed, however, when the use of best management practices is not enough, additives may make economic sense. Such is the case in N.W. Europe where the weather prevents haymaking, and the high …

Harvest Management, Harold Vaught

Kentucky Alfalfa and Stored Forage Conference

Harvest management is not an easy topic to address. Every farm or field may present a different situation, thus, decisions must be made by the grower as to the harvest schedule he uses. Most everything I will discuss has research to back it up but I will not reference it. I must say that some of my comments have come from experience and observation over a period of many years.

Managing Leaf Spot Diseases Of Alfalfa, William C. Nesmith

Kentucky Alfalfa and Stored Forage Conference

Approximately 25-30 diseases attack and reduce the yield, quality or stand longevity of alfalfa in Kentucky. The largest number of these diseases are leaf spot. Generally, the leaf spots diseases are more important in reducing quality due to leaf loss than direct killing of plants. Some of the leaf spots are severe enough to warrant specific controls aimed directly at them while others are managed through more general practices.

Weed Management In Alfalfa, William W. Witt

Kentucky Alfalfa and Stored Forage Conference

Weeds compete with alfalfa for water, nutrients, light, and space. This competition can decrease yields, lower forage quality, increase disease and insect problems, create harvesting problems, and initiate or poison the animals which will consume the forage. Premature loss of alfalfa stands is usually the result of the interaction of the pest complex - diseases, insects, and weeds.

Kentucky's Ipm Program For Alfalfa, Chris M. Christensen

Kentucky Alfalfa and Stored Forage Conference

Integrated Pest Management (IPM) is a concept that encourages the use of a variety of strategies in the management of crop pests. It is very important to have an indepth understanding of the crop production system when implementing an IPM program. An IPM program is dynamic requiring a continual evaluation of the status of the crop, the associated pest complex, the effects of the pests and the biological deterrents to those pests. If a pest population gets "out of hand" and begins to cause economic damage, pest management techniques may need to be applied. These pest management measures may be …

Soil And Fertility Management, Lloyd W. Murdock

Kentucky Alfalfa and Stored Forage Conference

Alfalfa is a high producing, labor intensive, high cost and high return crop. Therefore, it only makes sense not to limit its production or longevity by establishing it on unsuitable soil or by the use of unsound fertility practices. It is the aim of this paper to propose practices which will not limit the production of alfalfa, but, also allow it to be done as efficiently as possible with only the necessary inputs.

Kentucky Alfalfa Variety Testing Program, Roy E. Sigafus

Kentucky Alfalfa and Stored Forage Conference

In the 1950's and 60's alfalfa variety trials were conducted by the Lexington staff at 5 to 7 locations. Trials are now limited to Lexington and Princeton, but numerous demonstration seedings are established by the Extension Service personnel throughout the state.

Establishment And Early Management Of Alfalfa Stands For Hay And Silage Production, J. Kenneth Evans, Charles T. Dougherty

Kentucky Alfalfa and Stored Forage Conference

To achieve high levels of productivity and long-lived alfalfa stands, farmers must treat alfalfa as a crop and not as a pasture on the back forty. In this paper we present current recommendations for establishment and early management of alfalfa stands in Kentucky. See AGR-76, Alfalfa-The Queen of Forage Crops, and AGR-64, Establishing Forage Crops, for more detailed information.

Alfalfa In Kentucky — Situation And Challenge, Garry D. Lacefield

Kentucky Alfalfa and Stored Forage Conference

Alfalfa is one of the most important forage crops in the United States. Of all commonly grown forages, it is among the highest in feeding value and has the highest yield potential of all adapted perennial forage legumes. Alfalfa is grown over a wide range of soil and climatic conditions and can play an important role in soil conservation. Alfalfa is a versatile crop which can be used as pasture, hay and silgage. As a result of its versatility, yield potential and quality, it can be used successfully in all livestock feeding programs.

Foreword [1983], Garry D. Lacefield

Kentucky Alfalfa and Stored Forage Conference

This is the front matter of the proceedings.

Effect Of Fertilizer Salts On Crop Production, V. P. Evangelou

Soil Science News and Views

Soil consists largely of mineral and organic matter, air, and water. Plants obtain nutrients from mineral and organic matter, oxygen from air, and they use water as a carrier of nutrients from the soil into the root and to the above ground portion of plants.

Since soil water functions as a carrier of nutrients from solid fractions of soil into and through plants, it plays a very important role in plant nutrition. Because of this importance, correct chemical balance of the soil solution is necessary for best crop performance. This means that pH of the solution should be in the …

Bibliography Of Nebraska Geology, 1843-1976, John H. Sandy, Jay Fussell

Conservation and Survey Division: Faculty and Staff Publications

Preface

The computer brightened the 1970s considerably by giving researchers a tool for storing, retrieving and manipulating electronically sizable blocks of literary material on a single subject. which would otherwise have cost researchers years of scholarly investigation to bring together. It was in such a propitious moment mat we set out to assemble this state bibliography as an aid to scholars, researchers. scientists, teachers, writers, editors, and decision makers in the earth sciences, universities, and all levels of government.

As we collected, compiled, and checked citations for this bibliography, we relied heavily on the following standard sources that have indexed …

An Inventory Of Public, Industry, And Power-Generating Water Use In Nebraska, 1979 And 1980, Dennis R. Lawton, Cynthia L. Veys, Owen Goodenkauf

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Supplemental Water Supplies Policy Issue Study: A Contract Report For The State Water Planning And Review Process-Nebraska Natural Resources Commission.

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Seedbed Preparation For Pasture Renovation, Harold B. Rice

Soil Science News and Views

In Kentucky renovation has come to mean the re-establishment of legumes in grass pastures and meadows. Many acres of grassland do not contain enough legumes to fill the amount of nitrogen needed and to improve the nutritional value of the forage. A good stand of white clover, for example, has the capacity to fix about 100 pounds of nitrogen per acre. Because of this, pastures containing around 40 percent clover can produce about as much meat or milk as grass pastures fertilized with 150 pounds of nitrogen per acre. For best results in seeding clovers into grass sods, fields should …

Clover Scorch Screening, Root Rot Screening, Bluegreen Aphid Screening, Red Legged Earthmite Screening Experiments, Evaluation Of Medicago Murex, D J. Gillespie

Experimental Summaries - Plant Research

Clover scorch screening. Root rot screening. Bluegreen aphid screening. Red legged earth mite screening experiments. Evaluation of Medicago murex.

Nebraska Mineral Operations Review, 1982, Raymond R. Burchett, Duane A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.