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SOIL SCIENCE

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The soil science major is for those who desire to become guardians of the soil. Soil is one of the natural resources which is basic for life and human existence. As the natural medium for plant growth, it is the source of most of our food and clothing. It provides shelter in the form of bricks and timber products. Mankind also depends upon the soil as a material for supporting and locating buildings, transportation systems, waste disposal sites, outdoor recreational playgrounds, flood control ditches, and underground utility systems.

There are thousands of kinds of soil on earth; each having a unique set of characteristics. Soil science students learn how to determine these characteristics in both the field and laboratory. They learn to relate these characteristics to the genetic history of the soil and to organize and classify this information in a systematic manner. They also learn to determine the location and extent of soils in the field and to show this on a soil map.

The characteristics of a soil determine the degree of suitability for a variety of alternative uses, and the appropriate management practices required to keep the soil permanently productive. Soil quality can be altered by the activities of mankind. If abused, soil productivity declines. If treated properly, a soil will produce indefinitely. Soil scientists prevent soil deterioration while striving to maintain or improve soil productivity for all future generations.

The demand for soil scientists is keeping pace with the human population growth curve and the growing awareness for maintaining a clean and aesthetic environment. A career in soil science is an alternative for anyone who is concerned about the conservation of natural resources and the future wealth of mankind, and has a strong interest in the biological and physical sciences.

The Cal Poly, Pomona, soil science program enjoys an excellent local, state, and national reputation. This reputation results from a strong curriculum, taught by a well-qualified faculty, supported by laboratory and field facilities which have produced alumni who are professional soil scientists.

Soil scientists have many options for career opportunities. They can work for private industry or governmental agencies; in the laboratory, field, office or classroom; and in either urban or rural areas. They can apply their knowledge to the production of agronomic, horticultural, rangeland, or forestry plants; to the use of soils for urban planning and development; to the manufacturing and marketing of fertilizers and other agricultural materials; or to the administration of natural resource programs. Many graduates pursue advanced training and work in research and education.

About half of the Cal Poly soil science graduates are employed by a governmental agency. At the federal level they are working for the Bureau of Land Management, Forest Service, Natural Resource Conservation Service, Environmental Protection Agency, or Agricultural Research Service. Several foreign students are employed by their native country's Department of Agriculture. At the state level in California and elsewhere, they are employed by a State University, Department of Forestry, Department of Water Resources, or Department of Health Services. At the county or local level, they are working for the Agricultural Commissioner's Office, the Agricultural Extension Office, or the County Arboretum. One alumnus is with the Food and Agricultural Organization of the United Nations.

The soil science graduates with private industry are mainly employed by agricultural chemical companies, soil engineering testing and consulting firms, wholesale horticultural nurseries, food production and processing companies, agricultural management consulting firms, or soil testing laboratories.

Soil Science Minor:
The soil science minor is primarily for students majoring in another discipline which is dependent upon soil science. It is a valuable curricular adjunct for those majors stressing plant growth, such as: agronomy, botany, fruit industries, landscape architecture, and ornamental horticulture. The soil science minor will also strengthen the academic background of those majoring in agricultural engineering, civil engineering, agricultural science, anthropology, biology, geology, geography, international agriculture, and urban planning.

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Core Courses for Major

(Required of all students)

Orientation to the College of Ag AG 100 (1)
Agriculture and the Modern World AG 101 (4)
Ethical Issues in Agriculture AG 401 (4)
Basic Soil Science SS 231/231L (4)
Soil Fertility and Fertilizers SS 233/233L (4)
Soil Materials & Mgt. SS 332/332L (4)
Soil Resource Management and Conservation SS 334/334L (4)
Soil and Plant Analysis SS 339/339L (3)
Crop Ecology AGR 401 (4)
Soil Chemistry SS 431/431L (4)
Soil Physics SS 432/432L (4)
Soil Morphology and Survey SS 433/433L (4)
Senior Project SS 461 (2)
Senior Project SS 462 (2)
Undergraduate Seminar HPS 463 (2)
Environmental Toxicology AGB 411 (4)
Plant Structures and Functions BOT 124/124L (5)
Basic Microbiology MIC 201/201L (5)
Introduction to Microcomputing CIS 101 (4)
College Chemistry CHM 122 (3)
College Chemistry Lab CHM 122L (1)
College Chemistry CHM 123 (3)
College Chemistry Lab CHM 123L (1)

 

Support and Elective Courses

(Required of all students)

Irrigation AE 240/240L (4)
Animal Agricultural Science AVS 111 (4)
Elements of Organic Chemistry CHM 201 (3)
Quantitative Analysis CHM 221/221L (4)
Elements of Organic Chemistry Laboratory CHM 250L (1)
Principles of Geology GSC 111 (3)
Principles of Geology Laboratory GSC 141L (1)
College Physics PHY 121 (3)
College Physics PHY 122 (3)
College Physics Laboratory PHY 121L (1)
College Physics Laboratory PHY 122L (1)
Elementary Statistics with Applications STA 120 (4)

Choose 8 units from the department environmental component list....(8)
Choose 8 units from the department list in business applications....(8)


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General Education Courses
Required of all students. A total of 68 quarter units of General Education courses are required for all majors in the College of Agriculture. A new GE program will be adopted beginning fall 2001 with full implementation targeted for fall 2002. Unless specific courses are stated below, see the list of approved courses under General Education Requirements, Area A through E, in this catalog.

Area A

Select one course   (4)
Select one course   (4)
Select one course   (4)


Area B

Select one course   (4)
College Chemistry CHM 121 (3)
College Chemistry Laboratory CHM 121L (1)
Basic Biology BIO 115/115L (5)
Select one course   (4)

Area C

Select one course (4)
Select one course (4)
Select one course (4)
Select one course (4)


Area D

United States History HST 202 (4)

and Intro to American Government

PLS 201 (4)
Select one course   (4)
Select one course   (4)
Select one course   (4)


Area E

Select one course   (4)


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Soil Science Minor

Minimum Units-20
Minimum Upper Division Units-9
Required Courses (all students)

Basic Soil Science SS 231/231L (4)
Soil Fertility and Fertilizers SS 233/233L (4)


Select 12 units from the following:

Soil Materials and Management SS 332/332L (4)
Soil Resource Mgmt and Conservation SS 334/334L (4)
Soil and Plant Analysis SS 339/339L (3)
Soil Chemistry SS 431/431L (4)
Soil Physics SS 432/432L (4)
Soil Morphology and Survey SS 433/433L (4)

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Course Descriptions


All courses offered in Soil Science may be taken on a CR/NC basis except by majors or by students taking minor in Soil Science.

SS 200 Special study for Lower Division Students (1-2)
Individual or group investigation, research, studies or surveys of selected problems. Total credit limited to 4 units, with a maximum of 2 units per quarter. Staff

SS 231/231L Basic Soil Science (3/1)
Basic concepts and scientific methodologies of the living and non-living systems of soils; integrated relationships between soils and climate, plants, animals, geologic materials, land form and time; and the impact of soils on civilization. 3 lectures, 1 three-hour laboratory. Prerequisite: CHM 121/121L. Concurrent enrollment required.

SS 233/233L Soil Fertility and Fertilizers (3/1)
Critical evaluation of concepts, methods and materials for improving the fertility of soils used for the sustained production of all types of commercial plants while preserving environmental quality as influenced by past and present social, political, and economic institutions in Western and non-Western societies. 3 lectures, 1 three-hour laboratory. Prerequisite: SS 231/231L. Concurrent enrollment required.

SS 299/299L/299A Special Topics for Lower Division Students (1-4) (1-4) (1-4)
Group study of a selected topic, the title to be specified in advance. Total credit limited to 8 units, with a maximum of 4 units per quarter. Prerequisite: Permission of instructor. Instruction is by lecture, laboratory, activity, or a combination. Concurrent enrollment required.

SS 332/332L Soil Materials and Management (3/1)
Comprehensive evaluation of soils, soil materials, and technical and scientific methodologies for managing soils and soil materials for the production of agronomic and horticulture crops on a sustained basis while preserving environmental quality. Presented in an interactive setting. 3 lectures/problems, 1 three-hour laboratory. Prerequisite: SS 231/231L; computer literacy encouraged. Concurrent enrollment required.

SS 334/334L Soil Resource Management and Conservation (4)
An integrated study of principles and methods for managing soil and water resources for multiple uses, sustainable agriculture, environmental quality, and erosion control. Integrated effects of soil, climate, topography, and land use; social, political, and economic relationships. 3 lecture problems, 1 three-hour laboratory. Prerequisite: SS 231/231L.

SS 339/339L Soil and Plant Analysis (2/1)
Critical evaluation of the basic concepts and scientific methodologies for analyzing the nutrient status of soils and plant tissue as a means for diagnosing alternative fertilizer and amendment treatments as influenced by past and present social, political, and economic institutions in western and non-western societies. 2 lectures, 1 three-hour laboratory. Prerequisites: CHM 122/122L; SS 231/231L. Concurrent enrollment required.

SS 400 Special Problems for Upper Division Students (1-2)
Individual or group investigation, research, studies or surveys of selected problems. Total credit limited to 4 units, with a maximum of 2 units per quarter.

SS 431/431L Soil Chemistry (3/1)
Critical evaluation of the basic concepts and scientific methodologies regarding the chemical composition and reactions of the integrated solid-liquid-gaseous system in soils and their relationship to soil productivity and environmental quality as influenced by past and present social, political, and economic institutions in western and non-western societies. 3 lectures, 1 three-hour laboratory. Prerequisite: SS 339/339L; CHM 221; or consent of instructor. Concurrent enrollment required.

SS 432/432L Soil Physics (3/1)
Critical examination of the methods of characterizing the physical attributes of soil, including soil particle size particle size distribution and structure, the nature and behavior of clay, the state and movement of water and solutes in both saturated and unsaturated soil conditions, gas and energy exchange between the soul and atmosphere, and the principles of rheology. 3 hours lecture/problem-solving, 1 three-hour laboratory. Concurrent enrollment required.

SS 433/433L Soil Morphology and Survey (3/1)
An in-depth examination of soul morphology. Descriptions, characterization, and interpretation of soul profiles, soil bodies, and patterns of soul. Categorization using the morphogenic system of the USDA. Allied aspects of soils including technology transfer, land use planning, ecology, soil surveys and mapping, and pedogenic processes. 3 lecture-discussions, 1 three-hour laboratory. Prerequisites: SS 231/231L; upper division standing. Concurrent enrollment required.

SS 441, 442 Internship in Soil Science (1-4) (1-4)
On-the-job experience with public and private agencies for advanced students. Professional type experience new to the student so that a valuable contribution toward career development results. One unit credit for each 100 hours of experience. Written reports necessary. Courses may be repeated for maximum of 12 units total. Prerequisite: Junior standing.

SS 461, 462 Senior Project (2) (2)
An analytical investigation of a soil science research project in an area of special interest to the individual student, working under faculty supervision, culminating in a formal rhetorical, expository report that emphasizes clarity and lucidity of thought based on deductive and inductive reasoning, and the use of graphic skills. Minimum of 120 hours. Must be taken in sequence.

SS 463 Undergraduate Seminar (2)
Critical reviews of contemporary research in the field of soil science. The student will analyze, criticize and advocate by inductive and deductive methods. Inferences in contemporary literature are based on fact or a logical, unambiguous extension of fact. Oral reports of literature and senior projects are required. Prerequisites: SS 462 and successful completion of the GWT.

SS 499/499L/499A Special Topics for Upper Division Students (1-4)
Group study of a selected topic, the title to be specified in advance. Total credit limited to 8 units with a maximum of 4 units per quarter. Prerequisite: permission of instructor. Instruction is by lecture, laboratory, activity, or a combination. Concurrent enrollment required.

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