Table 5-9. Comparison of means for uptake of N, P, K, and Ca from corn
dry matter.


 Corn dry-matter nutrients
N P K Ca


Factor / Level


-------------- kg/ha ------------


Date
 First
 Second

Density
 Low
 High

Fertilizer
 4
 3
 2
 1
 0


45.0a*
37.lb


36.5a
45.6b


50.9a
45.8a
48.5a
45.9a
14.lb


7.04a
5.07b


5.55a
6.57b


7.88a
6.82a
7.56a
6.39a
1.62b


50.2a
36.8b


38.la
48.9b


51.5a
45.8a
51.4a
45.9a
13.lb


8.92a
6.79b


6.45a
9.25b


8.67a
8.54a
9.18a
10.la
2.75b


owed by
level of


* Means in the same column under the same factor heading foll
 the same letter are not significantly different at the 95%
 probability, as determined by Duncan's Multiple Range Test.