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Articles 31 - 60 of 74
Full-Text Articles in Life Sciences
The Bumblebees Of Nebraska, Wallace E. Laberge, Morgan C. Webb
The Bumblebees Of Nebraska, Wallace E. Laberge, Morgan C. Webb
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The purpose of this paper is to provide a ready means of identifying bumblebees found in Nebraska. It is for both amateur and professional entomologists. Included are an annotated list of the bumblebees found in Nebraska, artificial keys for species determination, a glossary for those not acquainted with the terminology used in the keys, a list of flower preferences and biological notes pertaining to bumblebees in Nebraska. The keys for identification include a few species of bumblebees which have not yet been collected in Nebraska but which may occur in the state.
Relation Of Heart Girth To Weight In Holsteins And Jerseys, H. P. Davis, W. W. Swett, W. R. Harvey
Relation Of Heart Girth To Weight In Holsteins And Jerseys, H. P. Davis, W. W. Swett, W. R. Harvey
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Body weight is the one measurement most extensively used to evaluate growth, condition, and value for beef, and as a basis for calculating feed requirements for cattle. Weight can be determined readily by scales but unfortunately scales of a capacity adequate for weighing cattle are not always available. Thus there is a real need for a basis of estimating weight from some body measurement that can be obtained easily and at a minimum of cost and time. It is the aim of this study to utilize additional data now available to increase further the accuracy and reliability of estimating weight …
Yields In Different Cropping Systems And Fertilizer Tests Under Stubble Mulching And Plowing In Eastern Nebraska, F. L. Duley
Yields In Different Cropping Systems And Fertilizer Tests Under Stubble Mulching And Plowing In Eastern Nebraska, F. L. Duley
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The material in this report will be confined chiefly to studies on crop production with stubble-mulching compared with plowing. Major cash crops have been studied in different rotations including legumes and non-legume crops. In all tests, plowing has been compared with subsurface tillage. Different types of equipment have been devised and tested for the various operations during the course of these studies.
Effect Of Time Of Cutting On Yield And Botanical Composition Of Prairie Hay In Southeastern Nebraska, Elverne C. Conard, Vincent H. Arthaud
Effect Of Time Of Cutting On Yield And Botanical Composition Of Prairie Hay In Southeastern Nebraska, Elverne C. Conard, Vincent H. Arthaud
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Approximately three and one-third million acres of native prairie are harvested annually in Nebraska for hay. In the four-year period 1948-1951, the State ranked first in wild hay production with an average yield of more than two and one-quarter million tons per year. This crop is an important natural resource in Nebraska's livestock industry. Studies were initiated in 1945 to determine the effects of time of cutting on the yield and feeding value of prairie hay in southeastern Nebraska. The studies were continued through the summer of 1952 to determine the effects of different cutting treatments on the vigor and …
Forty Years Of Dairy Cattle Breeding At The North Platte Experiment Station, Mogens Plum, Myron G.A. Rumery
Forty Years Of Dairy Cattle Breeding At The North Platte Experiment Station, Mogens Plum, Myron G.A. Rumery
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
In 1913 the Nebraska Legislature appropriated $17,500 to establish a Dairy Department at the North Platte Experiment Station. The department's herd was to be used in demonstrating management and breeding practices and as a source of breeding stock. Since the North Platte herd was started, research in the field of animal breeding has developed new concepts in many phases of dairy cattle breeding and selection. The purpose of the present study is to analyze the progress made under a system of dairy cattle breeding and selection carried out according to the principles that dominated 40 years ago. The results of …
Rate Of Potato Tuber Growth On Dryland At The Box Butte Experiment Farm, H. O. Werner
Rate Of Potato Tuber Growth On Dryland At The Box Butte Experiment Farm, H. O. Werner
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Relatively late planting of potatoes, i.e., between June 12 and 25, has become the prevailing practice in the dryland areas of western Nebraska. Late planting distinctly improves the color and type of tubers, and reduces losses due to insects and diseases (especially soil-borne diseases caused by Fusarium and Streptomyces). Growers must decide each year whether the increase in yield and tuber maturity gained by delaying harvest will be offset by the risk of impaired tuber quality due to scab or possible serious field frost damage. Information about the rate at which tubers are developing by various dates is essential …
Streak Mosaic Of Wheat In Nebraska And Its Control, R. Staples, W. B. Allington
Streak Mosaic Of Wheat In Nebraska And Its Control, R. Staples, W. B. Allington
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
This bulletin reports the results of studies on the epidemiology of wheat streak mosaic under Nebraska conditions. Particular attention is given to the occurrence and certain characteristics of the mite vector of the virus, the relation of weather and other factors to some of its activities, a correlation of certain mite situations with epidemics of the disease, and recommendations for disease control.
Economic Analysis Of Forage Production And Utilization In Dakota And Dixon Counties, Nebraska, Howard W. Ottoson
Economic Analysis Of Forage Production And Utilization In Dakota And Dixon Counties, Nebraska, Howard W. Ottoson
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Soil erosion remains a serious problem on many Nebraska farms despite programs of financial assistance, technical aid, and education by several national and state agencies. One reason that soil conserving adjustments in land use have not been made by farmers is that considerable uncertainty surrounds the economics of soil erosion control on the farm level. This study is an attempt to increase knowledge and reduce some of the uncertainty with regard to the economics of erosion control in a specific area.
Commercial Fertilizers For Winter Wheat In Relation To The Properties Of Nebraska Soils, R. A. Olson, H. F. Rhoades
Commercial Fertilizers For Winter Wheat In Relation To The Properties Of Nebraska Soils, R. A. Olson, H. F. Rhoades
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
It is the purpose of this bulletin to report the investigations that have been made correlating soil properties and fertilization practices with yields of winter wheat. Since the success or failure of fertilization practices is so dependent on specific soil conditions, an attempt has been made here to further characterize the major soils of the different sections of the state which are devoted to wheat production and to analyze fertilizer practices and results in relation to the soil properties determined. The data are summarized for the four sections of the state designated as southeastern, east-south-central, west-south-central and western Nebraska. These …
Reduced Ascorbic Acid Content Of Potatoes Grown With And Without Straw Mulching And Irrigation In Eastern Nebraska, H. O. Werner, Ruth M. Leverton, Mary R. Gram
Reduced Ascorbic Acid Content Of Potatoes Grown With And Without Straw Mulching And Irrigation In Eastern Nebraska, H. O. Werner, Ruth M. Leverton, Mary R. Gram
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Potatoes harvested from home gardens and in commercial early-producing fields in the Midwest are an important low-cost source of ascorbic acid from late June into September. The major portion of the early commercial crop in Nebraska (harvested mostly in August) is produced with irrigation. Straw or litter mulching is a well established practice in the nonirrigated garden and farm potato patches. The value of these cultural methods for increasing yield is well known, but prior to this study little was known about their influence on the ascorbic acid content of the tubers, or about the persistence of any such influence …
Effect Of Storage Temperatures On Triumph Seed Potatoes Used For The Early Crop In The South And In Central Nebraska, H. O. Werner
Effect Of Storage Temperatures On Triumph Seed Potatoes Used For The Early Crop In The South And In Central Nebraska, H. O. Werner
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
During the decade 1931-1940 it became increasingly apparent that some factor (or factors) besides disease was responsible for much of the variation in yields produced by lots of certified seed potatoes planted in commercial fields and comparative trial plots in the South during midwinter. This bulletin reports investigations into the method of storing western Nebraska seed potatoes as a means of improving the production of the early crop of Triumphs in the Gulf Coast States.
Pink Rot Of Potatoes Caused By Phytophthora Erythroseptica Pethyb., R. W. Goss
Pink Rot Of Potatoes Caused By Phytophthora Erythroseptica Pethyb., R. W. Goss
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
During the summer of 1943 reports were received of rotted tubers occurring in fields of early potatoes in central Nebraska. An estimated 10 per cent of the tubers were found rotted in some fields on August 5. In November and December of the same year the late-producing area of western Nebraska reported the occurrence, at harvest and in storage, of tuber rots differing from those previously recorded for that area. Specimens appeared similar to those observed during the summer in central Nebraska. Isolations were made and pathogenicity tests were conducted both on tubers and growing plants to study the influence …
Effect Of Position Within A Large Storage Bin Upon Midwinter Behavior Of Nebraska Triumph Seed Potatoes, H. O. Werner
Effect Of Position Within A Large Storage Bin Upon Midwinter Behavior Of Nebraska Triumph Seed Potatoes, H. O. Werner
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Much variation in time of emergence of plants has been observed within lots of Nebraska seed potatoes planted in the South during the winter. In large storage bins in western Nebraska the end of the dormancy period of tubers in various parts of the bin, as determined by the appearance of sprouts, may vary from January to May. It has been surmised that differences in temperatures and perhaps other conditions in various parts of the bin may account for such variations. In the winter of 1941-42 an experiment was conducted to determine the extent to which the position of potatoes …
Carotene Content Of Native Nebraska Grasses, I. L. Hathaway, H. P. Davis, F. D. Keim
Carotene Content Of Native Nebraska Grasses, I. L. Hathaway, H. P. Davis, F. D. Keim
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The carotene content of twenty-four grasses native to Nebraska were determined at approximately monthly intervals from June to November. While the carotene concentration of most of the grasses was moderately high during the growing season, it declined to a rather low point by late November. With the exception of Switchgrass, Hairy Grama, Little Bluestem and Prairie Dropseed, all of the grasses contained enough carotene to supply the needs of range cattle until late November. However, only eighteen of the grasses still contained enough carotene by the latter part of September to furnish the carotene required by dairy cows. Even as …
Charcoal Rot Of Corn And Sorghum, J. E. Livingston
Charcoal Rot Of Corn And Sorghum, J. E. Livingston
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
In Nebraska, the charcoal rot caused considerable damage to the 1940 grain sorghum crop in the south central counties, and the following year it caused serious lodging and reduction of yield in both corn and sorghum in all sections of the state. Field observations indicated that some varieties of sorghum were damaged less than others; thus it appeared desirable to test thoroughly all varieties to determine whether any were sufficiently resistant to be recommended for field planting or to be used in a breeding program. It seemed desirable to study the influence of soil environment on infection and the development …
The Mosquitoes Of Nebraska, H. Douglas Tate, Doris B. Gates
The Mosquitoes Of Nebraska, H. Douglas Tate, Doris B. Gates
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
A survey of mosquitoes in Nebraska was conducted by the Nebraska Agricultural Experiment Station during 1942 and 1943. The object of the study was to determine the species, relative abundance, seasonal occurrence, and principal breeding places of mosquitoes in representative areas of the state. This report presents the results of the survey, and, in addition, some records and observations made in Nebraska by other workers during and previous to initiation of the project.
The Relations Of Vegetative Composition And Cattle Grazing On Nebraska Range Land, T. E. Brinegar, F. D. Keim
The Relations Of Vegetative Composition And Cattle Grazing On Nebraska Range Land, T. E. Brinegar, F. D. Keim
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The objectives of the studies reported in this paper were: (1) to obtain an analysis of the vegetation in tall and short grass range lands, (2) to observe the activities of cattle on the range, and (3) to determine the effects of grazing upon vegetation.
The Geographic Distribution Of Azotobacter And Rhizobium Meliloti In Nebraska Soils In Relation To Certain Environmental Factors, H. B. Peterson, T. H. Goodding
The Geographic Distribution Of Azotobacter And Rhizobium Meliloti In Nebraska Soils In Relation To Certain Environmental Factors, H. B. Peterson, T. H. Goodding
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
In this investigation a survey of Nebraska soils has been made in order to determine the distribution of the aerobic nonsymbiotic and symbiotic nitrogen fixers of the genera Azotobacter and Rhizobium respectively. In connection with this survey, some of the characteristics of the soils which may bring about this distribution were studied. Up to this time practically no research has been reported on the microflora of the soils of Nebraska. Hence there is little basis for predicting the activity of these organisms under environmental conditions as they exist here. It is hoped that this work will not only supply some …
Vegetative Composition And Grazing Capacity Of A Typical Area Of Nebraska Sandhill Range Land, A. L. Frolik, W. O. Shepherd
Vegetative Composition And Grazing Capacity Of A Typical Area Of Nebraska Sandhill Range Land, A. L. Frolik, W. O. Shepherd
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The sandhill area of Nebraska occupies approximately 20,000 square miles of the central portion of the state. Being unadapted to cultivation, the land is for the most part still covered with native vegetation. It is utilized primarily for the production of livestock, chiefly cattle. During the period 1931 to 1938 the sandhills carried annually an average of 1,041,000 cattle, which amounted to 31 per cent of the total number in the state. The management practices used in the Nebraska sandhills have gained national recognition as a good example of range conservation in the United States. The purpose of this study …
The Effects Of Stinking Smut (Bunt) And Seed Treatment Upon The Yield Of Winter Wheat, T. A. Kiesselbach, W. E. Lyness
The Effects Of Stinking Smut (Bunt) And Seed Treatment Upon The Yield Of Winter Wheat, T. A. Kiesselbach, W. E. Lyness
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The depreciating effects of bunt or stinking smut (Tilletia levis Kuhn and tritici [Bjerk.] Wint.) upon the yield and quality of winter wheat in Nebraska and many other states are well known. The practical control of this disease through seed treatment has also been established and is being extensively practiced by growers. At the time these experiments were initiated in 1923, formaldehyde was the most commonly used disinfectant, while copper carbonate was just gaining recognition following its introduction by Darnell-Smith in 1915. It has been the chief purpose of the investigations herein reported to study the relative merits of …
Land Transfers In Twelve Counties In Nebraska, 1928-1933, L. F. Garey
Land Transfers In Twelve Counties In Nebraska, 1928-1933, L. F. Garey
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The land transfers in twelve counties in Nebraska for the period 1928 to 1933 have been studied and the findings are submitted in this bulletin. The data on which the study is based were obtained from records in the office of the Register of Deeds in each county and from other sources and include transfers which occurred during the period indicated. The counties included in the study are Boone, Cass, Cuming, Dakota, Dawes, Frontier, Gage, Hamilton, Harlan, Lancaster, Nuckolls, and Valley.
The Tax System Of Nebraska With Special Reference To Its Relation To Agriculture, L. B. Snyder
The Tax System Of Nebraska With Special Reference To Its Relation To Agriculture, L. B. Snyder
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Progress in governmental affairs calls for constant study of matters pertaining to government. The recent agitation for moratoria on debts and taxes and the many tax reforms suggested are evidence of the need for such study. Before satisfactory reforms can be made, information on receipts and expenditures by governmental agencies must be secured. The expense connected with collecting, tabulating, and analyzing such data has prevented private agencies of the state from doing this. Because it was felt that such information would be useful and could be obtained by the College of Agriculture, this study was undertaken.
A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood
A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
It is the object of this paper to present a method for classifying and evaluating the soils as mapped in regular soil surveys on the basis of land types, which are here defined as areas having reasonably similar productivity and use suitabilities. The standards used to differentiate land types will vary according to the desired objectives, but any material difference in yield, or in practices necessary to maintain a desirable level of productivity will justify recognition of land types. The proposed procedure involves a more detailed study of the influence which soils, slope, erosion, and drainage have on specific crops …
Cellar And Cold Storage Of Sound And Mechanically Damaged Triumph Seed Potatoes, H. O. Werner
Cellar And Cold Storage Of Sound And Mechanically Damaged Triumph Seed Potatoes, H. O. Werner
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The object of these experiments was to determine with practically sound, whole potatoes the effect of cold storage during various portions of the storage period and continual cellar storage upon: (a) the weight losses during numerous intervals of storage period; (b) the condition of the potatoes at the end of the storage period in June; and (c) the relative seed value of the various lots of potatoes as determined by field experiments.
Sales Value And Assessed Value Of Nebraska Farm Land: 1921-1934, Eleanor H. Hinman
Sales Value And Assessed Value Of Nebraska Farm Land: 1921-1934, Eleanor H. Hinman
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
How to secure just and equitable estimates of the value of farm land as a basis for taxation has always been a vexatious problem. The existing assessment law in Nebraska went into effect April 1, 1921. The present study attempts to show how the assessed valuations of farm real estate made under that law compare with the actual sales value of the farms sold during the 13 years ending March 31, 1934. The data used in this study include records of 35,753 tracts of farm land in 93 Nebraska counties sold during the 13 years ending March 31, 1934.
A Study Of Farm Families And Their Standards Of Living In Selected Districts Of Nebraska 1931-1933, Margaret Fedde, Ruth Lindquist
A Study Of Farm Families And Their Standards Of Living In Selected Districts Of Nebraska 1931-1933, Margaret Fedde, Ruth Lindquist
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
This study of farm families in selected districts of Nebraska was undertaken in order to obtain information regarding the total money value of family living and the proportion of the total used for each of the principal groups of goods. A further purpose was to measure the adequacy of the living provided. The study was begun in January, 1931, and continued through the year 1933. The districts selected included Cass and Fillmore counties throughout the three-year period, and to these Buffalo county was added at the beginning of 1932.
A Key To The Nebraska Cutworms And Armyworms That Attack Corn, Don B. Whelan
A Key To The Nebraska Cutworms And Armyworms That Attack Corn, Don B. Whelan
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The following key to the Nebraska cutworms and armyworms injurious to corn is based upon structural characters supplemented in some instances by color. Not all of the species in this key have been found in Nebraska; some are included because they are to be found in near-by states to such an extent that they probably are present in this state.
History Of Farm Land Prices In Eleven Nebraska Counties 1873-1933, Eleanor H. Hinman
History Of Farm Land Prices In Eleven Nebraska Counties 1873-1933, Eleanor H. Hinman
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The subject of farm land price is intimately intertwined with the economic and social welfare of farm people, and even with the financial structure of the nation. A detailed, year-by-year record of farm land sales and prices from several typical Nebraska farming areas over a 61-year period may throw light on the behavior of land values in the counties studied and in similar farming areas, and may help towards supplying a better basis for land price analysis and forecasting than now exists. This bulletin presents such a record for 11 Nebraska counties. It is based on 76,544 true sales of …
Effects Of Inflation And Deflation Upon Nebraska Agriculture, 1914 To 1932, H. Clyde Filley
Effects Of Inflation And Deflation Upon Nebraska Agriculture, 1914 To 1932, H. Clyde Filley
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
This study attempts to give the effects of war-time inflation and the subsequent deflation upon Nebraska agriculture. It presents statistical evidence of what happened. It is too late to prevent the present depression. Information concerning the situation may aid in promoting recovery. It is hoped that a knowledge of the inflation of 1916 to 1920 and the depression following may aid in avoiding the making of similar errors in the future.
Farm Mortgage History Of Eleven Southeastern Nebraska Townships 1870-1932, Eleanor H. Hinman, J. O. Rankin
Farm Mortgage History Of Eleven Southeastern Nebraska Townships 1870-1932, Eleanor H. Hinman, J. O. Rankin
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
It is believed that a study of a complete record of all farm mortgages for a typical although very limited Nebraska farming area from 1870 through 1932 may be of interest (1) as a sample of the farm mortgage history of the western part of the corn belt, (2) as a contribution to analyzing some of the sources of agricultural credit and the use made of them, (3) as an illustration of the relation of farm mortgages to land and commodity prices, farm income, and banking resources, and (4) as an example of the mortgage problems of corn belt farmers …