Postplanting Nutritional Augmentation of Jeffrey Pine Seedlings on an Infertile Sierran Site
Table 3
Foliar concentrations of nutrients and Al in Jeffrey pine seedlings during the second and fourth growing seasons as affected by conventional, controlled release, and organic fertilizer formulations.a
Formulation and application rate
Macronutrient concentration (%)
Micronutrient concentration (μg g−1)
Al (μg g−1)
N
P
K
Ca
Mg
S
Fe
Mn
Zn
Cu
B
Second posttreatment season:
Viking 21-7-14
25 g
1.11cd
0.15a
0.96ab
0.24b
0.09bc
0.22abcd
65b
684b
36bc
5.0abc
54b
176b
50 g
1.18bcd
0.15a
0.98ab
0.21b
0.09bc
0.18cd
58b
458b
31cd
5.6ab
37b
132b
75 g
1.27abc
0.15a
1.07ab
0.18b
0.09bc
0.24abc
57b
502b
30cd
5.8ab
45b
143b
100 g
1.38ab
0.15a
0.95b
0.20b
0.08c
0.24abc
130b
442b
31cd
5.8ab
37b
113b
Free Flow 29-3-4
25 g
1.22abcd
0.16a
0.96ab
0.22b
0.10ab
0.20bcd
63b
494b
29cd
5.2abc
39b
152b
50 g
1.28abc
0.16a
1.04ab
0.19b
0.09bc
0.19cd
61b
381b
29cd
5.2abc
35b
123b
75 g
1.40a
0.16a
0.95b
0.19b
0.09bc
0.18cd
59b
371b
27d
5.8ab
32b
122b
100 g
1.35ab
0.16a
1.02ab
0.19b
0.09bc
0.17d
65b
454b
32bcd
5.4ab
35b
116b
High N 22-4-6
25 g
1.07d
0.15a
0.97ab
0.29b
0.09bc
0.22abcd
82b
737b
40b
5.4ab
56b
202b
50 g
1.23abcd
0.17a
1.07ab
0.20b
0.10ab
0.24abc
66b
511b
31cd
5.4ab
39b
142b
75 g
1.23abcd
0.17a
1.11a
0.20b
0.09bc
0.19cd
61b
501b
32bcd
5.3abc
41b
141b
100 g
1.26abc
0.16a
0.98ab
0.23b
0.09bc
0.19cd
54b
433b
31cd
6.6a
35b
118b
Milorganite 6-2-0
100 g
1.08d
0.17a
1.11a
0.17b
0.09bc
0.22abcd
59b
550b
25d
5.2abc
37b
170b
200 g
1.14bcd
0.15a
1.01ab
0.29b
0.10ab
0.27ab
70b
788b
33bcd
4.4bc
46b
209b
300 g
1.16bcd
0.15a
0.96ab
0.24b
0.10ab
0.24abc
67b
534b
32bcd
5.8ab
44b
178b
400 g
1.25abc
0.16a
1.06ab
0.21b
0.10ab
0.24abc
61b
624b
31cd
5.0abc
46b
161b
Nonfertilized
0.73e
0.08b
0.68c
0.46a
0.11a
0.28a
295a
1491a
47a
3.2c
91a
460a
Fourth posttreatment season:
Viking 21-7-14
25 g
1.12c
0.16ab
1.02ab
0.25b
0.13ab
0.24bc
56bcd
691ab
46abc
8.8b
42ab
251b
50 g
1.16c
0.17a
1.11a
0.22b
0.12abc
0.26abc
87ab
576ab
48abc
8.1b
39b
183b
75 g
1.26bc
0.18a
1.16a
0.20b
0.11abc
0.22bc
49bcd
517b
39c
8.4b
42ab
180b
100 g
1.30bc
0.17a
1.12a
0.19b
0.12abc
0.23bc
54bcd
537b
42bc
8.6b
34b
185b
Free Flow 29-3-4
25 g
1.24bc
0.16ab
1.06ab
0.21b
0.12abc
0.23bc
82abc
556ab
40c
7.8b
44ab
211b
50 g
1.32bc
0.17a
1.10ab
0.18b
0.11abc
0.22bc
32de
423b
42bc
8.4b
27b
144b
75 g
1.43ab
0.18a
1.14a
0.21b
0.12abc
0.23bc
45bcd
426b
47abc
8.4b
33b
183b
100 g
1.46ab
0.15ab
1.02ab
0.18b
0.11abc
0.20c
49bcd
560ab
36c
6.8b
31b
172b
High N 22-4-6
25 g
1.38abc
0.17a
1.07ab
0.24b
0.12abc
0.24bc
74abc
700ab
54ab
8.8b
46ab
254b
50 g
1.41ab
0.19a
1.11a
0.18b
0.11abc
0.22bc
49bcd
539b
37c
6.4b
29b
159b
75 g
1.46ab
0.17a
1.14a
0.18b
0.10bc
0.21bc
30e
493b
36c
5.8b
30b
154b
100 g
1.51a
0.17a
1.05ab
0.17b
0.09c
0.20c
70abc
392b
37c
6.0b
26b
138b
Milorganite 6-2-0
100 g
1.10c
0.15ab
1.08ab
0.20b
0.12abc
0.23bc
41cde
620ab
37c
6.6b
33b
185b
200 g
1.17c
0.17a
1.11a
0.22b
0.12abc
0.30ab
61bcd
650ab
41c
9.1b
40ab
221b
300 g
1.22bc
0.16ab
1.08ab
0.22b
0.12abc
0.27abc
52bcd
606ab
41c
8.2b
41ab
203b
400 g
1.29bc
0.16ab
1.06ab
0.22b
0.13ab
0.23bc
71abc
715ab
46abc
5.6b
49ab
219b
Nonfertilized
0.75d
0.12b
0.95b
0.33a
0.14a
0.34a
92a
999a
56a
16.8a
65a
381a
aWithin each element and season, means sharing a common letter do not differ significantly at according to the LSD test; for each combination of formulation and application rate.
