23
Crops in this Family: Cotton, Hibiscus, Corsation, Hollyhocks, Mallow, Okra, Cocoa
Below is a tissue nutrient sufficiency table for the Mallow Family (Malvaceae), which includes crops like cotton (Gossypium hirsutum), okra (Abelmoschus esculentus), and hibiscus (Hibiscus spp.). This table provides macro- and micronutrient sufficiency ranges, leaf water content (LWC), and Brix values across key growth stages. Since specific nutrient sufficiency data for the entire Malvaceae family are not universally standardized across all species, this table is primarily based on cotton (a well-studied Malvaceae member) and generalized for the family, with adjustments informed by broader plant physiology and limited data on okra and hibiscus from agricultural research (e.g., University of Georgia, Mississippi State University).
Growth stages are defined as:
- Vegetative (seedling to pre-flowering)
- Flowering (bloom initiation)
- Fruit Development (pod/boll/fruit formation)
- Maturation (fruit ripening/harvest)
- Harvest
Nutrient concentrations are in percentages (%) for macronutrients and parts per million (ppm) for micronutrients, with LWC as a percentage of fresh weight and Brix (°Bx) as soluble solids in leaf sap.
| Growth Stage |
N (%) |
P (%) |
K (%) |
Mg (%) |
Ca (%) |
S (%) |
||||||
|
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
|
|
Vegetative |
4.00 |
5.00 |
0.30 |
0.60 |
2.50 |
3.50 |
0.30 |
0.60 |
1.00 |
2.00 |
0.30 |
0.50 |
|
Flowering |
3.50 |
4.50 |
0.30 |
0.50 |
2.00 |
3.00 |
0.30 |
0.60 |
1.50 |
2.50 |
0.30 |
0.50 |
|
Fruit Development |
3.00 |
4.00 |
0.20 |
0.40 |
2.00 |
3.50 |
0.30 |
0.70 |
2.00 |
3.00 |
0.20 |
0.40 |
|
Maturation |
2.50 |
3.50 |
0.10 |
0.30 |
1.50 |
2.50 |
0.30 |
0.60 |
2.00 |
3.00 |
0.20 |
0.40 |
|
Harvest |
1.00 |
2.00 |
0.10 |
0.30 |
1.00 |
2.00 |
0.30 |
0.60 |
2.00 |
3.00 |
0.10 |
0.20 |
|
B (ppm) |
Zn (ppm) |
Mn (ppm) |
Fe (ppm) |
Cu (ppm) |
Mo (ppm) |
|||||||
|
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
|
|
Vegetative |
20 |
40 |
20 |
60 |
30 |
100 |
50 |
150 |
5 |
15 |
0.10 |
1.00 |
|
Flowering |
25 |
50 |
20 |
60 |
30 |
100 |
50 |
150 |
5 |
15 |
0.10 |
1.00 |
|
Fruit Development |
30 |
60 |
20 |
60 |
30 |
100 |
50 |
150 |
5 |
15 |
0.10 |
1.00 |
|
Maturation |
20 |
40 |
20 |
60 |
30 |
100 |
50 |
150 |
5 |
15 |
0.10 |
1.00 |
|
Harvest |
15 |
30 |
15 |
50 |
20 |
75 |
30 |
120 |
4 |
10 |
0.10 |
1.00 |
|
LWC |
BRIX |
|||||||||||
|
Min |
Max |
Min |
Max |
|||||||||
|
Vegetative |
85 |
90 |
8 |
12 |
||||||||
|
Flowering |
80 |
88 |
10 |
15 |
||||||||
|
Fruit Development |
78 |
85 |
12 |
18 |
||||||||
|
Maturation |
75 |
82 |
8 |
14 |
||||||||
|
Harvest |
70 |
75 |
8 |
12 |
||||||||
Scanning Recommendation:
- Leaf selection should be similar to that of Cotton.
- Ensure that over 25% of the scan bed is covered with a single layer of vegetation.
