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Home | Latest Cigar News | WATERING IN THE DIFFERENT TYPES OT TOBACCO
WATERING IN THE DIFFERENT TYPES OT TOBACCO
The appropriate application of watering is very important: its excess or defect can cause irreparable damages in yield or quality, mainly during harvesting. The quality of the Cuban dark tobacco is known all over the world whose raw material is used for the elaboration of the famous cigars called Habanos due to the correct watering carried out by peasants and producers. This asseveration is valid for any type of dark tobacco, but mainly for two of them, for the shade grown one because it should not be subjected to hydric stress (this is carried out masterfully in justified cases by the great producer of wrappers Alejandro Robaina) and in the second case it refers to the sun grown tobacco (strung) that is carried out in a contrary way, that is to say in this type of tobacco any excess of humidity happens when affectations of the chemical composition of the leaf take place.
The harmful effect of the excessive humidity is known by man since remote times, the Cuban aborigines told the Canaries who were one of the first European tobacco producers that “water sucked the honey of tobacco" and today our peasants to define this situation refer that in rainy years tobacco is like straw. Next some technical elements will be given that could justify the approaches before outlined.
If the conditions of watering are above the necessities of the producer, in function of the industrial use, serious affectations take place in the chemical composition of the leaf and its physical qualities, influencing directly in the characteristics of the cigar, for what in tobacco for wrappers humidity should not be restricted because thickness, nerviations, development and texture of the leaf would be affected invalidating it, on the other hand tobacco for filler would lose the aroma, scent and its flavor, among other qualities if it is cultivated in a rainy year or with a régime of watering superior to the one required.
Generally the leaves that are produced with high humidity of the ground are characterized by:
Great size
Fine texture
Little development of the nerviations
Clear and uniform Colors
Low contents of nicotine
Low contents of nitrogenous substances.
Delicate and diminished aroma
Low contents of essential oils and resins
Very good combustibility, if the content of chlorine in water is less than 25 parts per million
To know the hydric régime is very important but also to define the adequate moments in which it should be applied to the plants. These moments agree with the following phases of growth and development:
Phase of adaptation (first 8 days after the sowing of the plant)
Phase of great period of growth (between 22 and 45 days before the sowing of the plant)
Maturation phase (from the 45 days after the sowing of the plant to the harvesting of the higher leaves). In this stage watering should not be very frequent and of low norm.
Not all the varieties respond in the same way to the demands of watering, in this sense one can point out that in the varieties `Habana 2000 ', `Criollo 98 ' and ' Corojo 99 ', the yield increases when one waters with a humidity of the ground of 70-75-65% of the capacity of the field during the three cultivation stages (0-20, 21-45 and 46-75 days after the transplant). To achieve these objectives 2 slight waterings, 3 heavy and 2 slight will be applied in each phase respectively.
The variety ' Havana 92 ' doesn't require big volumes of water, mainly in the period of adaptation, where the plants are conditioned easily to the field.
Volumes between 1 200 and 1 300 m3/hectare should be used for a cycle of 75 days, what allows altering the watering régime proposed for other varieties. The distribution of watering in this variety should be:
Sowing with the finger: 170 m3/hectare (light watering).
First vivo after 4 days: 110 m3/hectare (light watering).
Second vivo after 8-10 days: 110 m3/hectare (light watering).
First watering after 22 days: 200 m3/hectare (average watering).
Second watering after 35 days: 208 M3 /hectare (average watering).
Third watering after 55 days: 180 m3/hectary (light watering).
If the year is dry and the rain is considered similar to zero, a slight watering will be applied 65 days after the transplant.
Among other factors the hydric régime of tobacco depends on the qualities of the ground, climatic conditions, date of sowing, and very particularly on the type of dark tobacco that is produced, that is why is offered the information on how is watering carried out in the central and oriental provinces of Cuba.
It is not possible to point out exactly the quantity of water and waterings that should be applied to each variety, because it depends fundamentally on the climatic conditions, characteristic of the ground, type and quality of tobacco that is wanted to obtain, fertilizer applied, etc. Some general recommendations can be pointed out for the central and oriental provinces:
Variety Quantity of waterings Partial norm Observations
First cutting Second cutting Cubic meters To water when the capacity of the field be at 65%
"Habana 2000" 3-4 2 250-300
"Habana 92" 3-4 2 250-300
"Habana Vuelta Arriba" 3-4 2 250-300
"Sancti Spíritus 96" 3-4 2 250-300
"Criollo 98" 3-4 2 250-300
If there is no residual humidity in the ground to sow, water should be applied before. An advice to the producer should be that his experience and observation during several years, makes him arrive at a conclusion about the procedure to follow in each case and that it is better for tobacco to "suffer" because of the lacking of humidity in the first 25-30 days of its development, than to see it grow with vigor for having been watered excessively, what would cause little development of the radical system.
In sun grown tobacco (en palo) in the province of Pinar del Río with possibilities of watering, it will be applied in the following moments:
In the transplant (slight)
Tape de palito (when covering the stem of the plants) (slight)
From 24 to 25 days (heavy)
From 32 to 34 days (heavy)
From 38 to 40 days (slight)
From 50 to 55 days (heavy)
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