A Fertility Program for Celery Production


TABLE 8.-YIELDS OF CELERY IN AREA 2 FOR THE FIVE-YEAR PERIOD FROM
 1932 THROUGH 1936, SHOWING THE INFLUENCE OF PHOSPHATE UPON
 YIELDS AT DIFFERENT POTASH LEVELS. THE DATA ARE GIVEN IN TERMS
 OF 70-LB. FIELD-TRIMMED CRATES OF CELERY PRODUCED PER ACRE.

I No Potash

 Year Fertilizer Formula Increase Due
 0-0-0 (Check) 0-4-0 to Phosphate

 1932 20 58 38
 1933 231 288 57
 1934 158 180 22
 1935 317 415 98
 1936 144 171 27
 Total 870 1,112 242
 Five-year average 174 222 .48

II 6% Potash


 Year


 1932
 1933
 1934
 1935
 1936
 Total
Five-year average


 Year


 1932
 1933
 1934
 1935
 1936
 Total
Five-year average


III 12% Potash


 Year


 1932
 1933
 1934
 1935
 1936
 Total
Five-year average


 Fertilizer Formula
 0-0-6 0-41/2-6

 153 238
 366 496
 271 351
 655 756
 315 335
1,761 2,176
 352 435


 Fertilizer Formula
 0-4V2-6 0-9-6

 238 245
 496 520
 351 352
 756 877
 335 338
2,176 2,332
 435 466



 Fertilizer Formula
0-4/2-12 0-9-12

 294 303
 556 594
 390 389
1,058 1,001
 393 394
2,691 2,681
 538 536


Increase Due
to Phosphate

 84
 130
 80
 101
 20
 415
 83

 Increase Due
 to Extra
 Phosphate

 7
 24
 1
 121
 3
 156
 31.



SIncrease Due
 to Extra
 Phosphate

 9
 38
 -1
 -57
 1
 -10
 -2