Florida Agricultural Experiment Stations


 RESULTS

 Results obtained from this study will be presented under two
general categories, field data and laboratory data. Results under
field data were obtained mostly from records furnished by collab-
orators and by actual measurements. Included in laboratory data
were the mineral composition of leaves and fruit, fruit quality
and certain phases of soil compositions. In view of the large
amount of data accumulated from the study, results for each
grove are listed in Tables A and B in the Appendix. Table A
includes the location, soil series, age, spacing, production and
fruit quality characteristics. Table B shows the mineral compo-
sitions of leaf, fruit and soil of each grove. Data shown in the
main text represent mostly the average values used primarily
to express distribution and various trends observed. Statistical
analyses where applied are based on the entire data.

 FIELD DATA

 Soil Type.-The soils planted to citrus in Florida may be di-
vided into two major groups-well-drained soils and imperfectly
to poorly drained soils (11). Most of the groves used in the
present study were situated on soils of well-drained series. The
type of soil on which each individual grove was situated was
determined from existing county soil maps.

 TABLE 2.-THE DISTRIBUTION OF VALENCIA ORANGE GROVES
 SITUATED ON DIFFERENT SOILS.

 Soil Series Groves Distribution
 No. /C
 Lakeland ..... ............. ---.- 133 79.2
 Blanton ......-.......... .. ......------ 9 5.3
 Gainesville ............................... .. 9 5.3
 Eustis ........ ........ ......-...........- 8 4.8
 Orlando ......... ..... ...-.-...- ----..- 3 1.8
 Lakewood ......................... .......-. 3 1.8
 St. Lucie ................. .. -.. 1 0.6
 Leon and Portsmouth ............ 1 0.6
 Scranton .............-- ---. .......... 1 0.6

 TOTAL ............-. ..-- ... ..------- 168


 Table 2 shows that nearly 80 percent of the groves were situ-
 ated on soils of the Lakeland series. Of the remaining 20 per-