From the Archives: Traveling Citrus in Mexico

Dr. Rubert Prevatt and Professor Tom Mack spent a month in Texas in the 1980s. During this time, they crossed the border into Mexico to learn more about one of the world's top citrus producers. The goal of this trip was to observe how they were combating the different obstacles they faced due to the climate in Mexico.  They visited the Campo Agricola Experimental Station where they were able to view all the experiments that were currently being practiced.

The regions where citrus is grown are notoriously arid, extremely dry, and to combat this, they use flood irrigation. This is an extremely wasteful irrigation style as it uses significantly more water than other irrigation methods. During flood irrigation, the land flood gates are opened allowing a large body of water to flow into the area this creates several disadvantages: 80% of the water is being lost as run off or evaporation, all sections of land do not receive the same amounts of water, which may cause anaerobic conditions in the soil. Because the soil is over saturated with water, this can cut off access to oxygen making respiration difficult for plants. Plants are only able to take up oxygen through their roots, but if there is no oxygen in the soil, the plant becomes void of oxygen.

The farmers at Campo Agricola were working on implementing a different irrigation system that would be more cautious of how they used the available resources. Their main focuses were seeing if they could use less water during the flooding and if they could use sprinkling or drip irrigation; as you can imagine, this method uses significantly less water than flood irrigation. With all the issues they face, one would not expect the Mexican citrus industry to be as big as it is. Mack comments on how he foresees the industry continuing to improve as the years pass. Mack was correct in his views, citrus production in Mexico has been steadily increasing over the years. Currently, Mexico produces 7.7% of the world's citrus.

Written by Tanzy Zviitwah, Florida Citrus Hall of Fame Fellow
In partnership with Florida Southern College’s McKay Archives Center
Spring 2024

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Source:

Mack, Thomas B. History of the Citrus Institute, Florida Southern College, 1947-1993. Lakeland, Florida: Florida Southern College, 1993.