ISHS Acta Horticulturae 323: Symposium on Soil and Soilless Media under Protected Cultivation in Mild Winter Climates
RESPONSE OF PLANT TO IRRIGATION WITH CO2-ENRICHED WATER |
| Author: | A. Ibrahim |
| Abstract:
In a study to investigate the function of CO2-enriched irrigation water in availing some soil problems for increasing production of plastic tunnel cucumber grown on sandy soil, carbon dioxide was injected through the irrigation system. The response of crop yield, quality and nutrient uptake of cucumber plant as well as soil pH, CaCO3 content and nutrients status were undertaken. Data revealed a significant effect of CO2 in lowering soil pH and slight effect on decreasing soluble salts through the growing season. Nutrients content of the studied soil were not affected due to CO2 injection. While the concentrations of P, Zn, Mn and Fe significantly increased in plant tissues when irrigated with CO2-enriched water. Meanwhile crop yield and quality of the tested plant was also improved. Reasons and interpretation of CO2 effects on soil and crop production were discussed. Data revealed that the irrigation with 150 ppm CO2-enriched water could be recommended as the most effective method for temporary controlling soil pH in sandy soil and consequently positively affected plastic tunnel cucumber production. | |
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