Plant & Soil Sciences eLibraryPRO
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Lessons - Landscape Management
  • A Place to Call Home Meeting the Needs of Perennial Plants
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  • Aparición de resistencia a herbicidas, en una población de malezas El uso repetido del mismo herbicida, puede provocar poblaciones de malezas que consisten de biotipos susceptibles (S) que son controlados y biotipos resistentes (R), que escapan al control para produc...
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  • Appearance of Herbicide Resistance in a Weed Population Through the repeated use of the same herbicide, weed populations can consist of susceptible (S)-biotypes that are controlled and herbicide resistant (R)-biotypes that are left behind to produce and re...
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  • Clasificación de los herbicidas Esta lección se enfoca en entender el sistema de clasificación en el cual están organizados los herbicidas. Terminología como clasificación, jerarquía de clasificación, ejemplos de clasificaci...
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  • Deliberate Mechanical Defoliation of Perennials A scenario to accompany 'Perennial Plant Response to Defoliation"  and provide an opportunity to apply the concepts learned in that lesson to a real-life problem
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  • Erosion Soil erosion is a global problem. Each year, erosion costs billions of dollars in loss of land productivity, damage from soil sediment deposition and subsequent restoration costs, and harm to plant, a...
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  • Erosion Control Measures This lesson will discuss erosion control practices in the agricultural and construction environments. The impact of erosion management practices will be demonstrated with exercises using a USLE calcul...
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  • Herbicide Classification This lesson focuses on understanding the classification system into which herbicides are organized. Terms of classification, classification hierachy, examples of classification and a brief overview ...
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  • Herbicides That Act Through Photosynthesis This lesson will examine herbicides that adversely affect light-related processes, thereby causing damage to plants. There are four basic mechanisms that will be studied in this class of agents: her...
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  • Perennial Plant Response to Defoliation - An Overview Compares the growth of defoliated and non-defoliated perennial plants, with an emphasis on the link between plant structure, growth, and response to defoliation.
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  • Soil Genesis and Development, Scenario 2 - Biosolid Addition and Soil Formation This case study addresses where geographically soil addition of municipal organic wastes occurs and how this addition affects soil profile development and the use of soils as a sustainable resource.
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  • 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...
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  • Soils - Part 1: The Origin and Development of Soil (How Soil Gets a Life and a Name) In this lesson, you will gain an understanding of the five soil forming factors and will be able to describe how each influences soil development. You will learn to identify common parent materials, d...
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  • Soils - Part 2: Physical Properties of Soil and Soil Water This lesson will help you understand the major components of the physical properties of soil. You will learn such terms as texture, aggregation, soil structure, bulk density, and porosity as it relate...
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  • Soils - Part 3: Soil Organic Matter In this lesson, you will learn such terms as organic, soil organic matter, nutrient, decomposition, humus, compost, and soil structure. In addition, you will be able to predict the effect of land uses...
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  • Soils - Part 4: Soil pH Soil pH is defined and its implications for crop production are described in this lesson. How are soil pH and buffer pH determined? How are these assessments used in lime recommendations? The factors ...
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  • 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...
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  • 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 ...
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  • 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...
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  • 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 ...
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  • 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...
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