Edafología. Volumen 7-3. Septiembre 2000. pág 129-136.
In this work the salinity and sodicity of the soils devoted to the cultivation of bananas and tomatoes in the Canary Islands are analysed from the point of view of the agronomical characteristics of the irrigation water.
The greatest problems of salinity and sodicity appear in the soil cultivated with tomatoes, a crop that tolerates salinity in its vegetative stages and which is irrigated with lower quality water than that used for banana crops.
The use of water mined in underground tunnels (sodium bicarbonate) in the cultivation of bananas and well-water (sodium chloride) in tomato crop may partially account for the differences observed in the composition of the soil solution of both crops. Other differences observed in the saline concentration between both soils seems to originate in the excessive and irrational fertilization in the case of the banana crops.
KEY WORDS: Canary Islands, salinity, sodicity, irrigation water, banana crop, tomatoes