Table 12.--Third harvest.
 Culls, out of size,.percent -. Culls, total, percent
 K Phosphorus level K K Phosphorus level K
levels P P P Ave levels P P P Ave

 K1 5.0 6.9 5.9 5.9 K1 7.8 9.6 8.0 8.5
 K2 5.0 4.5 4.0 4.5 K2 7.4 6.9 6.7 7.0
 K3 3.7 3.3 5.2 4.1 K3 9.4 5.6 9.0 8.0

P, Ave 4.6 4.9 5.0 P, Ave 8.2 7.4 7.9


(K and PK interactions significant)


(K.and PK interactions significant)


 Conclusions

 1. Yields of the first crop, sown December 16 and harvested January 17 were
obviously limited by some factor not included as a variable in the experiment.
It is believed that this may have been nitrogen. Higher yields of the third
crop over the second crop indicates a limiting factor for the second crop also.
Nitrogen cannot be ruled.out as a limiting factor for the second crop also,
although it was not expected.

 2. For maximum yields and quality of three consecutive radish crops, pending
further experiments, it isbelieved that.the Everglades Experiment Station soil
tests should.show about 12 pounds of phosphorus and 150 lbs. of potassium per
acre after fertilization.

 3. Soil tests results given in Table 4, indicate that the highest yields and
quality of other vegetable crops would not be obtained without additional
fertilization following three radish crops started at the above suggested
fertility level.






EES67-12
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