Florida Agricultural Experiment Station


TABLE 7.-YIELDS OF CELERY IN AREA 2 FOR THE FIVE-YEAR PERIOD FROM
 1932 THROUGH 1936, SHOWING THE INFLUENCE OF POTASH UPON YIELDS
 AT DIFFERENT PHOSPHATE LEVELS. THE DATA ARE GIVEN IN TERMS OF
 70-LB. FIELD-TRIMMED CRATES OF CELERY PRODUCED PER ACRE.

I No Phosphate

 Year Fertilizer Formula Increase Due
 0-0-0 (Check) 0-0-6 to Potash

 1932 20 154 134
 1933 231 366 135
 1934 158 271 113
 1935 317 655 338
 1936 144 315 171
 Total 870 1 1,761 891
 Five-year average 174 | 352 178

II 41/2% Phosphate


 Year


 1932
 1933
 1934
 1935
 1936
 Total
Five-year average


 Fertilizer Formula Increase Due
0-41/2-0 0-412-6 to Potash

 58 238 180
 288 496 208
 180 351 171
 415 756 341
 171 335 164
1,112 2,176 1,064
222 435 213


 Increase Due
 Year Fertilizer Formula to Extra
 0-41/2-6 0-41/2-12 Potash

 1932 238 294 56
 1933 496 556 60
 1934 351 390 39
 1935 756 1,058 302
 1936 335 393 58
 Total 2,176 2,691 515
 Five-year average 435 538 103

III 9% Phosphate

 Year Fertilizer Formula Increase Due
 0-9-6 0-9-12 to Potash

 1932 245 303 58
 1933 520 594 74
 1934 352 389 37
 1935 877 1,001 124
 1936 338 394 56
 Total 2,332 | 2,681 348
 Five-year average 466 536 70