Canistel Cultural Calendar
From the
Horticultural Sciences Department, Florida Cooperative Extension Service
Institute of Food
and Agricultural Sciences, University of Florida
In Florida, young trees should be fertilized every 1 to 2 months
during the first year, beginning with 1/4 lb (114 g) of fertilizer and
increasing to 1 lb (454 g) per tree. Thereafter, 3 or 4
applications per year in amounts proportionate to the increasing size
of the tree are sufficient, but do not exceed 20 lbs per tree per year.
Fertilizer
mixtures containing 6 to 10% nitrogen, 6 to 10% available phosphoric
acid, 6 to 10% potash, and 4 to 6% magnesium have been observed to give
satisfactory results with young trees. For bearing trees, potash should
be increased to 9 to 15% and available phosphoric acid reduced to 2 to
4%. Examples of commonly available fertilizer mixes include 6-6-6-2 [6
(N)-6 (P2O5)-6 (K2O)-2 (Mg)] and 8-3-9-2 [8 (N)-3 (P2O5)-6 (K2O)-3
(Mg)].
From spring though summer, trees should receive 3 to 4
annual nutritional sprays of copper, zinc, manganese, and boron for the
first 4 to 5 years. Canistel trees are susceptible to iron deficiency
under alkaline and high-pH soil conditions. Iron deficiency can be
prevented or corrected by periodic soil applications of iron chelates
formulated for alkaline and high-soil-pH conditions. Periodic
applications of ferrous (iron) sulfate may be made to trees growing in
low-pH soils.
Cultural calendar
for mature canistel trees in Florida
| Operation |
Jan |
Feb |
Mar |
Apr |
May |
June |
July |
Aug |
Sept |
Oct |
Nov |
Dec |
| General1 |
Apply
NPK |
|
Apply
NPK |
|
Apply
NPK |
|
Apply
NPK |
|
|
|
Apply
NPK |
|
| Nutritional sprays2 |
|
|
|
Foliar
applications during the warm season are more effective than during cool
periods. |
|
|
| Iron applications |
|
|
Dry
soil applications of ferrous (iron) sulfate to neutral and low-pH soils
and liquid soil drench applications to high-pH soils are more effective
during the warm season. |
|
|
| Watering |
Water trees
during prolonged dry periods. |
|
|
|
Reduce watering
to slow or stop plant growth and enhance flowering. |
| Insect control |
Monitor
for leaf and fruit diseases. Contact your local UF/IFAS Extension agent
for current control recommendations for more information. |
| Diseases control |
Monitor
for leaf and fruit diseases. Contact your local UF/IFAS Extension agent
for current control recommendations for more information. |
| Pruning |
|
|
|
Selectively
prune trees after the harvest season. |
|
|
Follow-up
pruning |
|
|
|
1
NPK, nitrogen-phosphorus-potassium; apply granular fertilizer 3–4
times per year. Reduce the amount of NPK application during late
summer, early fall to slow plant growth in preparation for flowering in
the late fall.
2 Foliar nutritional spray materials
should contain magnesium, manganese, zinc and possibly other
micronutrients. |
Fertilizer program
for canistel trees in the home landscape
| Year |
Times per year |
Amount/tree/application
(lbs)1 |
Total amount/tree/year |
Nutritional sprays
(times/year)2 |
Iron chelate drenches
(oz/tree/year)3 |
| 1 |
4-6 |
0.25–0.5 |
1.5-3.0 |
4-6 |
0.5-0.50 |
| 2 |
4-6 |
0.5–1.0 |
3.0-6.0 |
4-6 |
0.5-0.75 |
| 3 |
4-6 |
1.0–1.5 |
6.0-9.0 |
4-6 |
0.5-0.75 |
| 4 |
2-3 |
1.5–2.5 |
3.0–7.5 |
2-3 |
0.75-1.0 |
| 5 |
2-3 |
2.5-3.0 |
5.0-9.0 |
2-3 |
0.75-1.0 |
| 6 |
2-3 |
3.0-3.5 |
6.0-10.5 |
2-3 |
1.0–1.5 |
| 7 |
2-3 |
3.5-4.0 |
7.0-12.0 |
2-3 |
1.0–1.5 |
| 8+ |
2-3 |
4.5-5.0 |
9.0-15.0 |
2-3 |
1.5-2.0 |
1
Use 6-6-6-2, 8-3-9-3, or a similar material.
2
The nutritional sprays should contain zinc, manganese, boron,
molybdenum; it may also contain iron. Foliar sprays are more effective
from April to September.
3 Iron chelated soil drenches
(iron plus water) will prevent iron deficiency in high pH, calcareous
soils; foliar iron sprays are generally not effective. Apply soil
drenches from April through September.
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Back to
Canistel Page
|
Bibliography
Crane, Johathan H., and Carlos
F. Balerdi. "Canistel Growing in the Florida Home Landscape." Horticultural Sciences
Dept., UF/IFAS Extension, HS1049,
Original pub. Nov.
2005, Revised Oct. 2006, and Nov. 2016, Reviewed Dec. 2019, AskIFAS, edis.ifas.ufl.edu/hs299. Accessed 4 Apr. 2017, 26 Oct. 2020.
Published 5 Apr. 2017 LR. Last update 26 Oct. 2020 LR
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