SOIL NUTRIENTS
As described in Chapter 1, green plants require nutrients that they obtain from the soil. A rich loam soil will provide a balanced supply of the elements essential to the …
SOIL SEPARATES AND SOIL TEXTURE
As the parent rock weathers, it forms particles of differing sizes. Based on their diameter, these particles are classified into groups called soil separates. In decreasing order of size, the …
WHY SOILS DIFFER
Soils vary in many ways. They vary in color and weight. Some drain easily whereas others stay wet and bog-like. Some are rocky, breaking tools and backs, while others are …
Living and Nonliving Organisms
Over time, distinctive layers develop in undisturbed soils. Between the parent layer and the topsoil is the subsoil. Subsoil is finely weathered like the topsoil, but it lacks organic matter …
Weathered Minerals
Imagine a cross-sectional slice made down into the earth’s crust (Figure 3-1). This is called a soil profile. The mineral content of soil results from the weathering of solid bedrock …
THE SOIL
У OBJECTIVES Upon completion of this chapter, you should be able to • state how and why soils differ. • list the components of soil, major soil separates, …
THE ASSIMILATION OF TERMINOLOGY
By now, the assimilation of terminology may be weighing heavily on you. Rather than being put off by all of the new words, regard them as a new language, as …
VISUAL DESCRIPTIONS OF PLANTS
Since keys rely heavily on physical features of plants as the basis for separation, a trained horticulturist must have a working knowledge of the terms used to describe plants. Such …
HOW PLANTS ARE IDENTIFIED
The groupings just listed are especially helpful for narrowing the choices when plants are being selected to serve a function, play a role, or solve a problem. There still remains …
Heat Zone Considerations
Though hardiness zone ratings for plants have been studied and adjusted for many years in response to the earth’s natural climate changes, only recently has research into the impact of …
DESCRIPTION BASED ON TEMPERATURE TOLERANCE
When describing or categorizing plants based on their ability to tolerate and survive the temperature extremes of the place where they are growing, horticulturists commonly refer to the plants as …
HORTICULTURAL DESCRIPTIONS OF PLANTS
In addition to their botanical classification and possession of scientific and common names, most plants can be grouped into an assortment of other categories based on physical appearance rather than …
PLANTS
OBJECTIVES Upon completion of this chapter, you should be able to • explain the reason for knowing both scientific and common names of plants. • describe many of the ways …
WHAT PLANTS NEED FOR GROWTH
Plants can and do exist under incredibly adverse environmental conditions. They survive in the arctic as well as the desert. They live atop mountains and in the depth of canyons. …
MAJOR PLANT PROCESSES
A green plant is comparable to a machine that operates nonstop. However, unlike a machine that would perform a single function or programmed series of functions, the plant “machine” performs …
JUVENILITY AND MATURITY IN PLANTS
Although maturation is most commonly associated with animal aging or human emotional development, it also finds its place in plant science. Most commonly observed as a morphological (structural) change in …
THE STRUCTURE OF PLANT PARTS
Stems
Stems are the central axis of plants. They are usually above ground and may be long or short, single or multiple, and herbaceous or woody (these terms are defined later …
PARTS OF A PLANT
The most logical starting point for a scientific study of ornamental plants is their macroscopic anatomy (what we can see with the unaided eye). Members of the higher plants are …
PLANT NOMENCLATURE
Nomenclature is the naming of plants. The name that identifies one plant and distinguishes it from the hundreds of thousands of others in the world is its botanical name. The …
PLANT CLASSIFICATION AND THE NATURAL WORLD
Although this text is not intended to replace a more thorough study of botany, the fullest appreciation of plants results from a basic understanding of their place in the natural …
HORTICULTURE
THE VALUE OF PLANTS IN OUR LIVES___________ Americans live within a culture of superlatives—the tallest building, fastest automobile, most populous city, costliest motion picture, and so on. Always seeking …
A BRIEF HISTORY OF ORNAMENTAF HORTICUFTURE
It is easier to define and distinguish the crops and crafts of ornamental horticulture from the rest of horticulture than to separate the historical antecedents of ornamental horticulture from those …
EXTENSIVE TEACHING/LEARNING PACKAGE Instructor’s Guide
The Instructor’s Guides provides answers to the end-of-chapter review questions. ClassMaster CD-ROM The ClassMaster CD-ROM provides the instructor with valuable resources to simplify the implementation of the instructional program. It …
STRUCTURE OF THE TEXT
The structure of Ornamental Horticulture: Science, Operations, & Management, 4th Edition, is designed to support and enhance the learning process. Each chapter opens with clearly stated learning objectives. These objectives …
SCOPE OF THE TEXT
Unlike other texts that emphasize one aspect of the subject more than others, this text offers a balanced study of ornamental horticulture as an applied science, a craft, a profession, …
HORTICULTURE
rnamental horticulture is a multifaceted industry which offers challenging employment opportunities. Those who have a basic understanding of plant science, its applications to practical growing situations, the crafts of horticulture, …
