UNIVERSITY OF FLORIDA


 SLS. 420.-Special Problems in Soils. 2 to 6 hours. 1 to 3 credits. With
permission of the instructor. Offered 1, 2, 3.
 Research problems in soils for qualified students in all departments of the College
of Agriculture.
 GRADUATE COURSES
 Prerequisites: A student who expects to pursue graduate work in the Department
of Soils should present the bachelor's degree from a recognized College of Agriculture,
with a major in Soils, or the equivalent in other sciences. This would ordinarily mean
at least twenty hours, or its equivalent, of undergraduate work in the department. The
student will be held responsible for such basic undergraduate courses as are deemed
necessary for the pursuit of his special project.
 SLS. 500.-Advanced Soils. 1 to 6 hours. 1 to 3 credits. Prerequisites:
At least one course in Soils and approval of the head of the department.
Offered 1, 2.
 Conferences, lectures, laboratory and problems in Soil Fertility and Management,
Soil Chemistry and Microbiology, Soil Physics and Surveying and General Soils.
 SLS. 501.-Advanced Soil Microbiology. 1 hour, and 6 hours laboratory.
3 credits. Offered 2.
 Qualitative, quantitative and functional studies of the soil micro-flora under field
and laboratory conditions on both mineral and organic soils, including virgin soils, in
relation to type, conditions of cultivation and fertility; elemental metabolism of the more
important organisms, especially in terms of minor elements; climatic influences.
 SLS. 502.-Soil Chemistry. 3 hours and 3 hours laboratory. 4 credits.
Prerequisites: SLS. 402, CY. 123-331, PS. 110. Desirable, but not required
preparatory courses are: PS. 101-102 and CY. 401-402. Offered 1.
 The chemical constituents of soils and their reactions, in relation to soil fertility
problems; base exchange reactions as they affect soil acidity, lime requirement, and the
fate of applied fertilizers; physico-chemical conditions in soils; minor elements; factors
affecting leaching losses and fixation; laboratory practice in soil analysis with special
emphasis on pH technique.
 SLS. 503.-Soil Physics. 2 hours, and 3 hours laboratory. 3 credits. Pre-
requisites: SLS. 301 and PS. 110. Offered 2.
 Physical properties of the soil and their relation to the chemical reactions and bio-
logical functions in the soil; water and air movement. Mechanical analysis, moisture re-
lationships and other physical studies are made of Florida soils. Instruction in the use
of physical appliances in the field of soils.
 SLS. 504.-Soil Fertility. 2 hours. Prerequisite: SLS. 402. Offered 2.
 Fundamental soil fertility problems with emphasis on current theories and research
in the field of soil fertility. Nutrient availability and absorption and soil factors affect-
ing it. Crop response and the fertilizer requirement. Soil fertility diagnosis.
 SLS. 550.-Conferences in Soils. 1 hour recitation per credit. 1-4 credits.
Offered 1, 2.
 Reports and discussions of published research in the following fields:
 A. Soil Physics
 B. Soil Chemistry
 C. Soil Microbiology
 D. Soil Fertility
 SLS. 570.-Research in Soils. 1 to 6 hours. 1 to 6 credits. Offered 1, 2, 3.
The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.