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Potash Studies On Burley Tobacco In Owen County, Kentucky, Kenneth L. Wells, Kim D. Strohmeier, Anastasios D. Karathanasis, V. P. Evangelou

Agronomy Notes

Since the late 1970's, farmers in the Wheatley Community of Owen county have reported seeing potassium (K) deficiency on tobacco during the growing season. Most of them had been following University of Kentucky fertilizer recommendations for burley production. Analyses of cured leaf samples from one such crop in 1980 confirmed K deficiency. It was decided that the problem warranted conducting some field experiments in order to define the problem and hopefully develop a solution. Consequently, we located a field on the Harold Malcomb farm near Wheatly, that tested low in soil K and designed a field experiment with the objectives …

Effect Of Fertilizer Rates And Placement Practices On Yield Of Burley Tobacco, Kenneth L. Wells, G. D. Cantrill, J. L. Sims

Agronomy Notes

Management of fertilizer practices in production of burley tobacco is very important in control of manganese (Mn) toxicity of the crop. In addition to the use of agricultural limestone, the use of fertilizers in the appropriate amounts, the appropriate kinds, and in the appropriate manner can strongly influence acidity in the rooting zone during the growth of burley. Studies of these effects have made up a major thrust of the University of Kentucky's research programs on fertility of burley, and have largely been conducted by J.L. Sims and his students during the past 15 years.

Sucker Control Chemicals For Use On Burley Tobacco, W. O. Atkinson, Jones H. Smiley, Allen Wallace

Agronomy Notes

Maleic hydrazide (MH) formulations containing 3 pounds per gallon of active ingredient can no longer be manufactured for sale in the United States. However, all 3-pound MH formulations that were manufactured before October, 1981 can be sold until the supply of that formulation is exhausted. MH formulations containing 1.5 or 2.25 pounds of active ingredient (Potassium salt of MH) can still be manufactured and sold in the U.S. for controlling suckers on tobacco.

Field Tests Of Some Liming Treatments For Growing Burley Tobacco On Acid Soils, A. M. Wallace, Kenneth L. Wells, J. L. Sims, Paul Gray

Agronomy Notes

A major problem in the production of tobacco on acid soils in Kentucky is manganese toxicity, despite the fact that it can be easily prevented. Since manganese toxicity is caused by high levels of soil acidity, prevention of soil acidity by liming is the best method of control. And soil testing is the only way to determine how acid a field has become.

Relationship Between Soil Ph And Yield Of Burley Tobacco, J. L. Sims, W. O. Atkinson, Kenneth L. Wells

Agronomy Notes

Historically, use of soil with a pH of 5.6 to 5.8 has been recommended for producing best quality burley tobacco. This recommendation for a relatively low pH resulted from the reported increases in the incidence of certain diseases, notably black root rot (Thielaviopsis basicola) and black shank (Phytophthora parasitica), in soils with pH greater than 5.8. Additionally, some researchers have reported undesirable chemical properties of cured leaf grown on soils that had been limed. However, workers at the Kentucky Agricultural Experiment Station generally have reported favorable effects from use of lime on both yield and quality of tobacco grown in …

Effect Of Lime And Source Of Nitrogen Fertilizer On Yield And Chemical Composition Of Burley Tobacco, J. L. Sims, W. O. Atkinson, Kenneth L. Wells

Agronomy Notes

Current trends in the fertilizer industry indicate a shift to greater production of ammonium forms of nitrogen fertilizer in comparison to nitrate forms. Reasons for these trends are many, but both economic and energy conservation are major factors. Generally, ammonium forms are produced with less, total energy and have higher nitrogen contents that permits lower production and transportation costs per unit of N. Agronomically, ammonium forms are less readily leached from soils, but produce acid as they are converted to nitrates by soil microorganisms. Thus, ammonium sources of nitrogen have both advantages and disadvantages as fertilizers for crops.

Effect Of Nitrogen Fertilization On Yield Of Burley Tobacco, J. L. Sims, W. O. Atkinson, Jones H. Smiley, Allen M. Wallace

Agronomy Notes

Relatively large amounts of nitrogen from fertilizers and manures commonly are used in burley tobacco production. Growers are currently estimated to apply between 150 and 400 pounds of actual N per acre. Fertilization of burley with nitrogen significantly affects the physical and chemical characteristics of cured leaf and produces changes in yield and value. On most soils, leaf yields usually are increased by applications of N fertilizer, but the amount of yield increase per unit of applied fertilizer N varies widely between soils. High rates of N applied preplant or at planting often retard early plant growth, delay maturity, and …

Yield And Value Of Burley 21 Tobacco As Influenced By Nitrogen Nutrition, Suckering Practice, And Harvest Date, J. L. Sims, W. O. Atkinson

Agronomy Notes

An experiment was conducted in the field during 1966 on Maury silt loam soil to obtain information of the effects of agronomic factors on yield and value of Burley 21 tobacco . Ammonium nitrate fertilizer at varying rates, and concentrated super-phosphate and potassium sulfate at constant rates , were broadcast and disked in after plowing and before transplanting. All plots received irrigation water (sprinkler system) to supplement rainfall when soil moisture dropped below 60% of available moisture-holding capacity. Sucker control practices utilized were (a) no topping - no suckering, (b) topping - no suckering, (c) topping - hand suckering, and …

Housing Burley Tobacco On Portable Curing Frames, Elmon E. Yoder, Ira E. Massie

Agronomy Notes

Portable frames, wood and steel, and tractor lifts will make tobacco housing a little easier. The following story describes the use of these items in housing a burley tobacco crop.

Management Practices To Reduce Losses Caused By Hail Damage To Burley Tobacco, Allen Wallace, George Byers, Terry Rock

Agronomy Notes

It is estimated that Kentucky farmers have suffered income losses caused by hail damage to burley tobacco in excess of $6 million annually over the last five years . Such losses could often be substantially reduced through proper management of the crop following hail, according to studies involving artificial and natural hail damage.

A Burley Tobacco Variety-Management Study In 1966-67, Jones H. Smiley, W. O. Atkinson, A. M. Wallace, Ira E. Massie

Agronomy Notes

A management study was designed to investigate the desirability of two management systems emphasizing (1) yield and (2) quality and a third system (3) aimed at achieving an acceptable level of both yield and quality. (These are hereafter referred to as the "high yield, " "quality, " and "yield and quality" systems, respectively.)

Two varieties, Burley 21 and Ky 10, were grown under the three management systems (outlined in Table 1) in 1/4 acre non-replicated plots at five locations in Kentucky in 1966 and at seven locations in 1967. A three-year or older sod was selected at each location. Phosphorus …

Marketing Burley Tobacco, Ira E. Massie

Agronomy Notes

When your tobacco has been stripped, sort it (on the farm) into its respective groups. Sort in daylight or under fluorescent lighting, never by yellow (muzda) electric or lantern light.

After the sticks of tobacco have been carefully sorted and checked, they should be packed on the truck in the following order: first, the sticks of the lowest quality, then the flyings, then the next quality, etc. Next load the high quality lugs. The leaf is then loaded, beginning with that of the highest quality and then in the order of quality to the lowest.

A New Black Shank Resistant Hybrid, Jones H. Smiley, Ira E. Massie

Agronomy Notes

Seed of a new black shank resistant burley hybrid will be available to growers in 1964. This hybrid is especially for farmers who cannot rotate their tobacco land and . thus, are forced to set their crop in a black shank infested field. The hybrid is a cross between two black shank resistant varieties, MS L8 and Burley 37. The female parent , MS L8, carries black shank resistance from a wild relative of tobacco.

Calcium Deficiency Symptoms In Burley Tobacco, Jones H. Smiley, Ira E. Massie, George Everette

Agronomy Notes

Calcium is an element required by all higher plants in relatively large quantities. It appears to be closely related to the formation of buds and flowers.

Calcium is usually available in sufficient quantities in Kentucky soils to produce a normal crop of tobacco. However, when certain varieties of burley tobacco commence to bloom and produce suckers, the tips of the calyx lobes of the flowers may turn brown and die and the edges of the small leaves of the suckers may be necrotic, resulting in irregularly shaped sucker leaves. In severe cases the apical bud may be killed. These calcium …