ISHS Acta Horticulturae 408: International Seminar on Soilless Culture Technology Protected Crops Mild Winter Climates
LATEST INSIGHTS INTO WATER AND NUTRIENT CONTROL IN SOILLESS CULTIVATION |
| Author: | C. de Kreij |
| Abstract:
Transpiration influences transport and translocation of calcium. Nutrition and transpiration are both important in preventing blossom-end rot. Potassium and high EC have positive effects on quality of vegetables. For cut flowers low EC promotes quality. Boron and zinc toxicity can occur when irrigation water is contaminated by these two elements. Zn is released from galvanized steel. Low pH is favourable for crops or varieties susceptible to chlorosis, like gerbera, rose, chrysanthemum. In soilless culture, each crop has its own standard nutrient solution. The composition of the solution is adjusted to growing period, analytical results of the solution in the root environment, the composition of the irrigation water, and drainage water (in recirculation). The area of soilless cultivation in the Netherlands was about 3760 ha in 1992. In the year 2000 cultivation under glass should be in closed, recirculating soilless systems. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
