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Soil Fertility

Description: Report of an address given before the Rich Neck Farmers' Club, of Queen Anne's County, Maryland about methods ordinary farmers can use to improve the soil fertility of their lands.
Date: 1906
Creator: Whitney, Milton, 1860-1927
Partner: UNT Libraries Government Documents Department
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A Chemical Analysis of the Soils of Denton County, Texas

Description: The purpose of this study was to analyze the different soils in Denton, Texas. For the purpose of this study, the soils of Denton County are divided into three general groups with respect to origin: 1)those formed in place by the weathering of consolidated rocks, 2) those formed from the weathering of unconsolidated rocks, and 3) alluvial soils. A chemical analysis of representative samples of Bell Clay, Kirvin fine sandy loam, and San Saba clay has been made, and shown to have a strict correla… more
Date: August 1936
Creator: Wilson, Curtis
Partner: UNT Libraries
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An Investigation of the Relationship Among Occupational Opportunities for Women, Marriage, and Fertility

Description: The purpose of this research is to investigate the relationship among the following variables: occupational opportunities for women, career participation, percentage married by specific age groups, and fertility. The areal units of analysis are the one-hundred largest standard metropolitan statistical areas in the United States in 1970. The independent variables are occupational opportunities for women and career participation of women, and the dependent variables are percentage married by spec… more
Date: May 1977
Creator: Ross, Patricia A.
Partner: UNT Libraries
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Decreases in Human Semen Quality with Age Among Healthy Men

Description: The objective of this report is to characterize the associations between age and semen quality among healthy active men after controlling for identified covariates. Ninety-seven healthy, nonsmoking men between 22 and 80 years without known fertility problems who worked for or retired from a large research laboratory. There was a gradual decrease in all semen parameters from 22-80 years of age. After adjusting for covariates, volume decreased 0.03 ml per year (p = 0.001); sperm concentration dec… more
Date: December 1, 2001
Creator: Eskenazi, B.; Wyrobek, A.J.; Kidd, S.A.; Moore, L.; Young, S.S. & Moore, D.
Partner: UNT Libraries Government Documents Department
open access

Soil Conservation

Description: This bulletin "makes clear the situation that confronts us in view of the fact that practically all the more desirable farm land in the country has been brought under cultivation; and that to meet the increasing demands for food stuffs, improved methods of farming must be used. such methods must be employed as are best adapted to the conservation and maintenance of soil fertility. To these ends there are discussed some of the more important factors determining the improved methods of farm manag… more
Date: 1910
Creator: Spillman, W. J. (William Jasper)
Partner: UNT Libraries Government Documents Department
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Cover Crops for Soil Conservation

Description: "Cover crops are crops sown or planted in thick stands for the purpose of protecting and enriching the soil.... That the use of cover crops is a most efficient means for preventing soil erosion and increasing soil fertility is well known; yet this practice is not nearly so widely and extensively followed as it should be. The kinds of cover crops that should be used and the method of utilizing them to the best advantage varies in different regions, according to climatic conditions but almost eve… more
Date: 1936
Creator: Kell, Walter V., 1889- & McKee, Roland
Partner: UNT Libraries Government Documents Department
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Reproductive Health Hazards in the Workplace

Description: A report by the Office of Technology Assessment (OTA) that "reviews current knowledge of hazards and suspected hazards to the reproductive health of American's working men and women and to the health and well-being of their children" (Foreword).
Date: December 1985
Creator: United States. Congress. Office of Technology Assessment.
Partner: UNT Libraries Government Documents Department
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From Property to Person: Understanding the Mediating Role of Control on Ovulation in the Female Consumer Experience

Description: My aim is to design a research program that emphasizes inclusivity through empiricism rather than anecdotes and benevolent sexism. To accomplish this goal, I review and build on the work assessing the influence of fertility in the female consumer experience (FCE). Fertility, especially menstruation, has been used anecdotally for too long. This research was designed to address the gap in knowledge around the way in which women perceive advertisements. More specifically, the role fertility plays … more
Date: August 2019
Creator: Njoroge, Lydia
Partner: UNT Libraries
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A Preliminary Report on the Effect of Roentgen Rays on the Formed Elements of Avian Blood

Description: This problem consists primarily in determining the numerical value of the leukocytes after different amounts of roentgen rays had been applied to the subjects. The Atomic Energy Commission set up a problem concerning the effects of roentgen rays on the fertility in chickens, and grants were given to two institutions to study this. The blood work in this paper was an off-shoot from one of these five fertility grants.
Date: August 1954
Creator: Berger, Gillett
Partner: UNT Libraries
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Heterozygosity for a Bub1 mutation causes female-specific germ cell aneuploidy in mice

Description: Aneuploidy, the most common chromosomal abnormality at birth and the main ascertained cause of pregnancy loss in humans, originates primarily from chromosome segregation errors during oogenesis. Here we report that heterozygosity for a mutation in the mitotic checkpoint kinase gene, Bub1, induces aneuploidy in female germ cells of mice, and that the effect increases with advancing maternal age. Analysis of Bub1 heterozygous oocytes showed that aneuploidy occurred primarily during the first meio… more
Date: June 24, 2009
Creator: Leland, Shawn; Nagarajan, Prabakaran; Polyzos, Aris; Thomas, Sharon; Samaan, George; Donnell, Robert et al.
Partner: UNT Libraries Government Documents Department
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Fertility knowledge, contraceptive use and unintentional pregnancy in 29 African countries: a cross-sectional study

Description: Article examines the association between incorrect knowledge of ovulation and unintentional pregnancy/child among young women in sub-Saharan Africa countries.
Date: April 9, 2020
Creator: Oppong, Joseph R.; Iyanda, Ayodeji Emmanuel; Dinkins, Barbara J.; Osayomi, Tolulope; Adeusi, Temitope Joshua & Lu, Yongmei
Partner: UNT College of Liberal Arts & Social Sciences
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The roles played by mitochondrial DNA and nuclear genes in reversion to fertility in S-Type male-sterile maize. Progress report, April 1, 1985--March 31, 1989

Description: This is a progress report/renewal request for work of the roles played by mitochondrial DNA and nuclear genes in reversion to fertility in s-type male sterile maize. Information is included for the following major catagories of research on this project: molecular basis for nuclear reversion; molecular characterization of cytoplasmic revertants; nuclear control over cytoplasmic reversion and over replication of S1 and S2; developmental studies; transposition of nuclear restorer elements.
Date: March 1995
Creator: Laughnan, J. R.
Partner: UNT Libraries Government Documents Department
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Quantitative Chemical Analysis of the Soils of Erath County, Texas

Description: A chemical analysis of representative samples of Windthorst sand, Denton sand, and Denton clay has been made, and this analysis shows that their composition has a strict correlation with respect to their geological origins. The analyses of the different soils have shown the Windthorst sand to be highly deficient in all of the essential elements, whereas the Denton sand is deficient in only one; namely, phosphorus. The analysis of the Denton clay showed it to be highly fertile. From the conside… more
Date: June 1938
Creator: Barnes, Benjamin F.
Partner: UNT Libraries
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Sexual Behavior Among Secondary School Going Adolescent Women in Zambia

Description: Adolescent fertility is a problem that is urgent in developing countries due to rapid population growth rates. To gain a better understanding of adolescent fertility within developing countries a study was undertaken to examine adolescent sexual behavior among teens within a developing country, Zambia. A self-administered questionnaire was given to secondary school going teenage women in Zambia. The sample population consisted of 503 women between the ages of 12 and 19. The survey was analyzed … more
Date: August 1992
Creator: Palka, Karen
Partner: UNT Libraries
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The Impact of Soil Sampling Errors on Variable Rate Fertilization

Description: Variable rate fertilization of an agricultural field is done taking into account spatial variability in the soil’s characteristics. Most often, spatial variability in the soil’s fertility is the primary characteristic used to determine the differences in fertilizers applied from one point to the next. For several years the Idaho National Engineering and Environmental Laboratory (INEEL) has been developing a Decision Support System for Agriculture (DSS4Ag) to determine the economically optimum r… more
Date: July 1, 2004
Creator: Hoskinson, R. L.; Rope, R C.; Blackwood, L G.; Lee, R D. & Fink, R K.
Partner: UNT Libraries Government Documents Department
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The Manuring of Cotton.

Description: Describes experiments in manuring cotton, the yield and profit of cotton crops when properly fertilized, and best practices in fertilizer application.
Date: 1897
Creator: United States. Department of Agriculture.
Partner: UNT Libraries Government Documents Department
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Impaired fertility in T-stock female mice after superovulation

Description: Superovulation of female mice with exogenous gonadotrophins is routinely used for increasing the number of eggs ovulated by each female in reproductive and developmental studies. We report an unusual effect of superovulation on fertilization in mice. In vivo matings of superovulated T-stock females with B6C3F1 males resulted in a 2-fold reduction (P<0.001) in the frequencies of fertilized eggs compared to control B6C3F1 matings. In addition, {approx}22 hr after mating only 15% of fertilized … more
Date: December 5, 2003
Creator: Wyrobek, A J; Bishop, J B; Marchetti, F & Zudova, D
Partner: UNT Libraries Government Documents Department
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Large P body-like RNPs form in C. elegans oocytes in response to arrested ovulation, heat shock, osmotic stress, and anoxia and regulated by the major sperm protein pathway

Description: Article on large P body-like RNPs forming in C. elegans oocytes in response to arrested ovulation, heat shock, osmotic stress, and anoxia and regulated by the major sperm protein pathway.
Date: June 1, 2008
Creator: Jud, Molly C.; Czerwinski, Michael J.; Wood, Megan P.; Young, Rachel A.; Gallo, Christopher M.; Bickel, Jeremy S. et al.
Partner: UNT College of Arts and Sciences
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Experiment Station Work, [Volume] 8

Description: Bulletin issued by the U. S. Department of Agriculture compiling selected articles from the Agricultural Experiment Stations. This bulletin contains articles on: Soil Moisture, Fertility of Soils, Cover Crops for Orchards, Cultivating v. Cropping Orchards, Transplanting Trees, Fecundity of Swine, Food Value of Eggs, Starch from Sweet Potatoes, the Toad as a Friend of the Farmer.
Date: 1899
Creator: United States. Office of Experiment Stations.
Partner: UNT Libraries Government Documents Department
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From Prediction to Prescription: Intelligent Decision Support for Variable Rate Fertilization

Description: We describe the use of machine learning methods in the analysis of spatial soil fertility, soil physical characteristics, and yield data, with a particular objective of determining local (field- to farm-scale) crop response patterns. For effective prescriptive use, the output of these tools is augmented with economic data and operational constraints, and recast as a rulebased decision support tool to maximize economic return in variable rate fertilization systems. We describe some of the practi… more
Date: July 1, 2001
Creator: Fink, Raymond Keith; Hoskinson, Reed Louis & Hess, John Richard
Partner: UNT Libraries Government Documents Department
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Growth and development of maize that contains mutant tubulin genes

Description: Mutant maize plants containing a Mu transposon disrupting one of the five beta tubulin genes of interest were followed for several generations and hybridized with each other to produce plants containing disruptions in both copies of a single gene or disruption of more than one tubulin gene. Seedlings of some of these plants were grown under chilling conditions for a few weeks. After DOE funding ended, plants have been assessed to see whether mutant are more or less tolerant to chilling. Other m… more
Date: July 23, 2004
Creator: Wick, Susan M.
Partner: UNT Libraries Government Documents Department
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Restoring Sustainable Forests on Appalachian Mined Lands for Wood Products, Renewable Energy, Carbon Sequestration, and Other Ecosystems Services Quarterly Report

Description: The overall purpose of this project is to evaluate the biological and economic feasibility of restoring high-quality forests on mined land, and to measure carbon sequestration and wood production benefits that would be achieved from forest restoration procedures. We are currently estimating the acreage of lands in VA, WV, KY, OH, and PA mined under SMCRA and reclaimed to non-forested post-mining land uses that are not currently under active management, and therefore can be considered as availab… more
Date: August 4, 2004
Creator: Burger, J.; Galbraith, J.; Fox, T.; Amacher, G.; Sullivan, J. & Zipper, C.
Partner: UNT Libraries Government Documents Department
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