Plant & Soil Sciences eLibraryPRO
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  • Irrigation Home Study Course
    Chuck Burr Extension Educator Univ of Nebraska chuck.burr@unl.edu
    The intent of this Home Study Course is to increase the user’s awareness and understanding of irrigation management concepts. This in turn can help producers reduce irrigation application amounts and increase uniformity of application, thereby reducing deep percolation and runoff. The end result can be reduced irrigation costs, increased efficiency, increased yields and reduced surface and groundwater contamination. The target audience for this course includes: crop consultants, agency personnel, irrigated crop producers and others interested in improving their irrigation water management skills. There is additional information on irrigation management on the UNL Water webpage: http://water.unl.edu/web/cropswater/home It is hoped that you find this course both helpful and enjoyable. To begin work in the course click on "Lessons" in the task bar above.  This will take you to a page where you can click on links to view each chapter.  We recommend that you print a few of the addenda, especially the Tables and the Equations.  For best printing results, set the printing properties to Portrait and, if available, to print both sides.  Upon completing a chapter you can take the quiz by clicking on the "Quiz" link included in each lesson; you may use your printed addenda while taking each quiz.  To earn CEU credit, you'll need to get 8 of 10 questions correct.  You may retake quizzes as many times as you wish. Chuck Burr Extension Educator, Univ of Nebraska chuck.burr@unl.edu  

    Contents of this Community may be viewed only after joining. A joining request requires approval by the Community owner before access is provided.
  • UNL Environmental Studies Program
    Christine Haney, UNL chaney3@unl.edu


    Contents of this Community may be viewed only after joining.
  • Global Learning Think Tank
    Deana Namuth-Covert dcovert2@unl.edu
    Welcome to a new area within the Plant and Soil Sciences eLibrary! Here we'll continue discussions after the Feb 14th  seminar by Dr. Deana and team.  Archived recording is linked here and at image for: A Decade of Online International Impacts and Partnerships Through the Plant and Soil Sciences eLibrary .  Please join our community to explore Plant and Soil Sciecnes eLibrary (PASSeL) resources, learn about new partnership opportunities, and discuss the future of science education. By joining the community, you will be able to participate in an ongoing forum of ideas and receive updates from us about new projects. To join the community, click "Join Now" in the upper right.    We have set up a discussion forum which you can participate in by clicking on the "discussion" button above.  The first time you access the forum, you will need to "enroll." Click "Enroll Me" on the page you are taken to. You will automatically receive email updates when new posts are made on the forum. To unsubscribe from the forum, follow the links at the bottom of the email.   Speakers included: Deana Namuth-Covert, Chuck Francis, Amy Kohmetscher, Deanna Leingang and Robert Vavala from UNL Dept of Agronomy and Horrticulture; Gwen Nugent from UNL NE Ctr for Research on Children, Youth, Families and Schools; Julie Albrecht from UNL Dept of Nutrition & Health Sciences; and Ndeye Ndack Diop from  CGIAR Generation Challenge Programme – Integrated Breeding Platform.        

Featured Animations
  • animation thumbnails
    ECB Lifecycle
    This animation goes through the life cycle of the European corn borer.
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    Herbicide Uptake by Leaves and Cells
    This animation describes how herbicides are taken up by leaves and illustrates how physico-chemical characteristics alter their movement across cuticles. Passive and active mechanisms of herbicide absorption across plant membranes into cells are shown as well.
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    Обратное скрещивание Backcross Breeding - Russian
    Back cross breeding
Featured Lessons
  • Evolution This lesson describes an evolution story that is unfolding today in farmers fields around the world.
    View Print
  • Advanced Backcross Breeding This lesson is a detailed explanation of the backcross breeding process. Variations based on whether backcrossing is performed with dominant, recessive, or multiple traits are discussed. Calculations ...
    View Print
  • Soil Genesis and Development, Scenario 3 - Soils and Salts This case study addresses how soil formed in different parts of the landscape influences productivy in the broad sense, of both economic and non-economic flora and fauna.
    View Print
  • Chi-Square Test for Goodness of Fit in a Plant Breeding Example In plant breeding and genetics research, plant breeders establish a hypothesis to explain how they think a particular trait is inherited, such as if it is due to one gene with complete dominance, an i...
    View Print Take Passel Quiz
  • Corn Flowers and Hybrid Seeds An explanation of how hybrid corn is grown, and how the monoecious nature of corn is used to manipulate the cross-breeding.
    View Print
People
author picture Martha Mamo Instructor
Professor of Soil Science
UNL
mmamo3@unl.edu
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  • Contents: 120 Lessons and 116 Animations in English and Español
  • eLibrary's Use Past 12 months: 11.48 million hits from 427,269 visits representing 129 different countries
  • 62,936 animation downloads
  • 31 Peer reviewed publications
  • 28 Content Authors
  • 9 Collaborating US/international universities
  • 5 National Awards
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