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Series

1980

Historical Materials from University of Nebraska-Lincoln Extension

Agriculture

Articles 1 - 5 of 5

Full-Text Articles in Education

G80-500 Ecofarming: Selection Of Tractor Mounted Or Pull-Type Sprayers, Norman L. Klocke, G. A. Wicks, R. Fenster Jan 1980

G80-500 Ecofarming: Selection Of Tractor Mounted Or Pull-Type Sprayers, Norman L. Klocke, G. A. Wicks, R. Fenster

Historical Materials from University of Nebraska-Lincoln Extension

Uniform application of dependable herbicides in the ecofarming program is a key to its success. A good sprayer is needed to accomplish this, and not every new sprayer available will do the job. The following sprayer components should be checked carefully: pump, tank, tank agitation, flow-control assembly, strainers and screens, distribution system (including boom), and nozzles. Each of the components is important if the sprayer is to do an accurate and uniform job of application.


G80-488 Spring And Summer Black Stem Diseases Of Alfalfa (Revised June 1992), John E. Watkins, Fred A. Gray Jan 1980

G80-488 Spring And Summer Black Stem Diseases Of Alfalfa (Revised June 1992), John E. Watkins, Fred A. Gray

Historical Materials from University of Nebraska-Lincoln Extension

Spring and summer black stem of alfalfa, their causes, symptoms, and control are discussed.

Of the two black stem diseases found in the central and northern Great Plains, spring black stem predominates summer black stem. Both are damaging when weather conditions favor their development. Although their symptoms differ, each causes spotting and darkening of stems and spotting of leaves.


G80-526 The Effect Of Weather On Corn: Preseason Precipitation And Yield Of Unirrigationed Corn, Ralph E. Neild Jan 1980

G80-526 The Effect Of Weather On Corn: Preseason Precipitation And Yield Of Unirrigationed Corn, Ralph E. Neild

Historical Materials from University of Nebraska-Lincoln Extension

This NebGuide examines the results of studies done on the effects of weather on unirrigationd corn.

Studies of the effects of weather on unirrigationd corn in Nebraska between 1950 and 1974 show the following four factors to be closely related to yield:

Technology--the availability of better hybrids, nitrogen fertilizer, herbicides, insecticides and other improvements have resulted in a yield increase averaging 1.3 bushel per acre per year since 1950.

Preseason precipitation--that which occurred between September 1 and May 15 had a beneficial effect. Yield increased on the average of 1.1 bushel per acre for each inch that preseason ...


G80-489 Feeding The Beef Cow Herd--Part I Factors Affecting The Cow Nutrition Program, Richard J. Rasby, Ivan G. Rush Jan 1980

G80-489 Feeding The Beef Cow Herd--Part I Factors Affecting The Cow Nutrition Program, Richard J. Rasby, Ivan G. Rush

Historical Materials from University of Nebraska-Lincoln Extension

Considerations for getting the most from your beef cow herd are covered in this NebGuide, including calving season, factors affecting nutrient requirements, cow rations and more.

Feed costs are the greatest expense in keeping a cow herd, and the nutrition program dictates reproductive performance. The ultimate goal for a cow/calf manager is to keep feed costs low, but still meet the nutrient requirements of the cow herd so reproductive performance is not impaired. Once these two factors are balanced, producers, through new genetics of added growth or milk production, can match increased weaning weight with the most economical feed ...


G80-509 Canada Thistle, Robert G. Wilson Jan 1980

G80-509 Canada Thistle, Robert G. Wilson

Historical Materials from University of Nebraska-Lincoln Extension

The growth and control of Canada thistle is covered here.

Canada thistle plant

Canada thistle [Cirsium arvense (L) Scop.] is a native of Eurasia and was probably introduced to America around 1750. Since that time it has spread throughout the northern part of the United States. Canada thistle is estimated to infest 800,000 acres in northern and western Nebraska.

A perennial that reproduces from seed and by an extensive root system, Canada thistle is dioecious, with the male and female flowers on separate plants. For viable seed to be produced, both male and female plants need to be present.