Plant & Soil Sciences eLibraryPRO
Loading
control panel control panel
 
Lessons - Soil Nutrient Management
  • La Transpiración - Movimiento del Agua a Través de las Plantas La transpiración es la pérdida de agua en forma de vapor por las plantas. El agua es absorbida del suelo por las raíces y transportada en forma líquida por el xilema hacia las hojas. En las hojas, unos pequeños poros permiten que el agua (H2O) escape a la atmósfera en forma de vapor, al tiempo que se permite la entrada de bióxido de carbono (CO2) para la fotosíntesis. De toda el agua absorbida por las plantas, menos del 5% es retenida y utilizada para crecimiento y almacenamiento. En esta lección se explicará porque las plantas pierden tanta agua, la ruta que ésta sigue dentro de la planta, como pudieran las plantas controlar la pérdida excesiva de agua y como las condiciones ambientales influyen en la pérdida de agua por las plantas.
    View Print
  • Manure Phosphorus and Surface Water Protection I: Basic Concepts of Soil and Water P This lesson focuses on the process of eutrophication; the relationship between land application of manure and soil phosphorus (P) dynamics on P delivery to surface waters; and on the P dynamics in ...
    View Print Take Passel Quiz
  • Manure Phosphorus and Surface Water Protection II: Field and Management Factors This lesson describes how source factors, including soil characteristics and management practices, affect phosphorus (P) delivery to surface waters; and also discusses how crop producers can control...
    View Print Take Passel Quiz
  • Manure Phosphorus and Surface Water Protection III: Transport Factors This lesson addresses transport factors that may contribute to phosphorus (P) delivery to surface waters.  Erosion, runoff, subsurface flow, drainage, and distance to surface water are the main fact...
    View Print Take Passel Quiz
  • Soils - Part 10: The Scientific Basis for Making Fertilizer Recommendations The Scientific Basis for Making Fertilizer Recommendations: In this lesson, you will gain an understanding of the history of fertilizer use and the ideas behind fertilizer recommendations. Three major...
    View Print Take Passel Quiz
  • Soils - Part 5: Nitrogen as a Nutrient In this lesson, you will be able to describe the forms of nitrogen found in the soil. The nitrogen cycle and how nitrogen is lost in the environment will be thoroughly discussed. Forms of nitrogen uti...
    View Print Take Passel Quiz
  • Soils - Part 6: Phosphorus and Potassium in the Soil This lesson explains the importance of phosphorus fixation and describes methods for applying phosphorus and the advantages (and disadvantages) of each. It also describes the three forms of potassium ...
    View Print Take Passel Quiz
  • Soils - Part 7: Soil and Plant Considerations for Calcium, Magnesium, Sulfur, Zinc, and other Micronutrients The 16 essential elements for plant growth and the relative quantities of each needed by plants to grow normally will be discussed in this lesson. You will learn to identify the source of specific nut...
    View Print Take Passel Quiz
  • Soils - Part 8: Characteristics of Fertilizer Materials The various characteristics of fertilizer materials being sold on the market today will be discussed. You will learn to identify some of the consequences of using each type of fertilizer material and ...
    View Print Take Passel Quiz
  • Soils - Part 9: Fundamentals of Soil Testing The major emphasis in this lesson is soil testing and understanding the procedures needed to take a representative soil sample. You will understand the term variability, how it affects soil tests, and...
    View Print Take Passel Quiz
  • Transpiration - Water Movement through Plants This lesson and its animation follows the journey of water through a plant from its uptake by roots to its evaporation from the leaf surface. How this journey is altered by plant characteristics such...
    View Print Take Passel Quiz

Control Panel cancel

Create activities for your moodle courses. Moodle Go to moodle
Select and group e-Library Lessons to create your own package... My Communities
Community Blogs Community Media

My Joined Communities

 
My Blogs - a journal of my thoughts... My Blogs
 
My Comments - my thoughts expressed as a feedback... My Comments
 
Classes that I am taking Registered Classes
Class Blogs Class Media
 
Check the scores of assesments that you have taken Taken Assessments
 
clear
Please confirm your selection.