Table 3. Critical (deficiency) values, adequate ranges, high values, and toxicity values for plant nutrient content for the most recently maturedwhole leaf plus petiole in tomato [1].
|
- |
% |
ppm |
|||||||||||
|
Time of Sampling |
Status |
N |
P |
K |
Ca |
Mg |
S |
Fe |
Mn |
Zn |
B |
Cu |
Mo |
|
5-Leaf Stage |
Deficient |
<3.0 |
0.30 |
3.0 |
1.0 |
0.30 |
0.30 |
40 |
30 |
25 |
20 |
5 |
0.2 |
|
Adequate Range |
3.0 |
0.30 |
3.0 |
1.0 |
0.30 |
0.30 |
40 |
30 |
25 |
20 |
5 |
0.2 |
|
|
5.0 |
0.60 |
5.0 |
2.0 |
0.50 |
0.80 |
100 |
100 |
40 |
40 |
15 |
0.6 |
||
|
High |
>5.0 |
0.60 |
5.0 |
2.0 |
0.50 |
0.80 |
100 |
100 |
40 |
40 |
15 |
0.6 |
|
|
First Flower |
Deficient |
<2.8 |
0.20 |
2.5 |
1.0 |
0.30 |
0.30 |
40 |
30 |
25 |
20 |
5 |
0.2 |
|
Adequate Range |
2.8 |
0.20 |
2.5 |
1.0 |
0.30 |
0.30 |
40 |
30 |
25 |
20 |
5 |
0.2 |
|
|
4.0 |
0.40 |
4.0 |
2.0 |
0.50 |
0.80 |
100 |
100 |
40 |
40 |
15 |
0.6 |
||
|
High |
>4.0 |
0.40 |
4.0 |
2.0 |
0.50 |
0.80 |
100 |
100 |
40 |
40 |
15 |
0.6 |
|
|
Toxic (>) |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
1500 |
300 |
250 |
-- |
-- |
|
|
Early Fruit Set |
Deficient |
<2.5 |
0.20 |
2.5 |
1.0 |
0.25 |
0.30 |
40 |
30 |
20 |
20 |
5 |
0.2 |
|
Adequate Range |
2.5 |
0.20 |
2.5 |
1.0 |
0.25 |
0.30 |
40 |
30 |
20 |
20 |
5 |
0.2 |
|
|
4.0 |
0.40 |
4.0 |
2.0 |
0.50 |
0.60 |
100 |
100 |
40 |
40 |
10 |
0.6 |
||
|
High |
>4.0 |
0.40 |
4.0 |
2.0 |
0.50 |
0.60 |
100 |
100 |
40 |
40 |
10 |
0.6 |
|
|
Toxic (>) |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
250 |
-- |
-- |
|
|
First Ripe Fruit |
Deficient |
<2.0 |
0.20 |
2.0 |
1.0 |
0.25 |
0.30 |
40 |
30 |
20 |
20 |
5 |
0.2 |
|
Adequate Range |
2.0 |
0.20 |
2.0 |
1.0 |
0.25 |
0.30 |
40 |
30 |
20 |
20 |
5 |
0.2 |
|
|
3.5 |
0.40 |
4.0 |
2.0 |
0.50 |
0.60 |
100 |
100 |
40 |
40 |
10 |
0.6 |
||
|
High |
3.5 |
0.40 |
4.0 |
2.0 |
0.50 |
0.60 |
100 |
100 |
40 |
40 |
10 |
0.6 |
|
|
During Harvest Period |
Deficient |
<2.0 |
0.20 |
1.5 |
1.0 |
0.25 |
0.30 |
40 |
30 |
20 |
20 |
5 |
0.2 |
|
Adequate Range |
2.0 |
0.20 |
1.5 |
1.0 |
0.25 |
0.30 |
40 |
30 |
20 |
20 |
5 |
0.2 |
|
|
3.0 |
0.40 |
2.5 |
2.0 |
0.50 |
0.60 |
100 |
100 |
40 |
40 |
10 |
0.6 |
||
|
High |
3.0 |
0.40 |
2.5 |
2.0 |
0.50 |
0.60 |
100 |
100 |
40 |
40 |
10 |
0.6 |
|
[1] Adapted from G. Hochmuth, D. Maynard, C. Vavrina, and E. Hanon, Plant Tissue Analysis and Interpretation for Vegetable Crops in Florida, Fla. Coop. Ext. Serv. Special Series SSVEC-42, 1991.
