Plant & Soil Sciences eLibraryPRO
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  • Soil Resources 153 Fall 2013
    Martha Mamo, mmamo3@unl.edu Tim Kettler, tkettler2@unl.edu
    Characteristics of soils in relation to their appropriate uses and protection. Principles and practices using cooperative exercises including discussion, assessment, planning, problem-solving, writing, and presentation involving all aspects of soils.

  • AGRO 437/837 Videos
    Steve Mason, smason1@unl.edu Diane Nolan, dnolan2@unl.edu
    Use these links to watch the videos. Floaters https://vimeo.com/80275352 Pycnometer https://vimeo.com/80275353 TADD https://vimeo.com/80275354 Stenvert Hardness https://vimeo.com/80275355 Test Weight https://vimeo.com/80275663 WBT https://vimeo.com/80275664

  • 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.
Featured Animations
  • animation thumbnails
    Nitrogen Supply Relationship with Protein Fraction, Lysine Concentration, and Kernel Hardness
    Discusses the relationship between the amount of nitrogen applied and how it affects the protein fraction, lysine concentration, and kernel hardness of a grain crop.
  • animation thumbnails
    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.
  • animation thumbnails
    Herbicide Competition
    This animation shows how herbicides compete with PEP to alter the function of an enzyme.
Featured Lessons
  • What is the importance of crop production in Nebraska and how do crops grow? This lesson can easily be adapted to address as few as one learning objective or all. Objectives and corresponding learning activities are numbered accordingly.
    View Print Take Passel Quiz
  • Native Plant Breeding: Bringing the Beauty of Nature Home Looks at how native plant breeders create plants with new combinations of desired traits; the relationship between plants, flowers and seeds; male and female structures flowers; flower types based on ...
    View Print Take Passel Quiz
  • Kid Quiz, Horticulture A brief elementary school level quiz on horticulture.
    View Print
  • DNA and DNA Extraction This lesson discusses what DNA is and how it relates to genes and chromosomes. How and why DNA is extracted in the genetic engineering process is also covered.
    View Print Take Passel Quiz
  • Gene Expression Part 2: Expression of Herbicide Resistant ALS Genes in Plants This lesson describes how changes in the DNA sequence of a gene can alter the synthesis of a protein and thus influence traits such as herbicide resistance.
    View Print Take Passel Quiz
People
author picture Mary Brakke Instructor
Education Specialist
University of Minnesota
brakk001@umn.edu
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  • Contents: 120 Lessons and 116 Animations in English and Español
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