Hand watering or sprinkler irrigation is mostly used in transplant produc-tion of tomatoes grown in pots with organic substrates. The flood irrigation on the tables or on the flood floors is applied in the ornamental plant production and more recently and more often in transplants production of the tomato and the cucumber cultivated in cubes of rockwool. The aim of the investigations conducted in 2008-2010 was to determine the influence of the flood fertigation with different concentration of the nutrient solution (the EC = 1,5, EC = 2,5, EC = 3,5, EC = 4,5 mS.cm -1) on the growth and development of the greenhouse tomato transplants cultivated in peat substrate. The transplants were cultivated on heated flood floor. The pots with tomato plants during fertigation were flooded to height of 3-4 cm by period 30 minutes. The kind of fertigation had no significant influence on the growth and development of tomato transplants. The plans obtained from flood fertigation and from hand watering characterized the similar height, thickness of stem, fresh and dry matter and also surface and number of leaves. Tomato transplants fertigated with nutrient solution of EC 2,5 and 3,5 mS cm-1. had best parameters such as the height, ...
Basic greenhouse vegetables in Poland are grown in open soilless system in which an excess of nutrient solution leaking from area of root system is discharged into the ground or drains of greenhouses. Drainage water from the growing slabs is more concentrated than nutrient solution supplied for plants. The aim of research conducted in the years 2010 - 2012 was to determine the effect of drainage water from soilless cultivation of tomato and cucumber on the mineral content in shallow groundwater occurring in objects of cultivation and in their neighborhood. Water samples for chemical analyzes were collected at intervals of three weeks from the piezometers located in greenhouses and adjacent areas within 25 and 300 m from the object. . The results of chemical analyzes of water indicate an increase in the degree of pollution of the waters of mineral nutrients. Ground water directly under soilless cultivated plants were contaminated almost all mineral nutrients that are in media fertilizers. Groundwater in significant quantities from entering nitrogen, potassium, calcium and magnesium. Contamination of ground water in the cucumber crop was at a similar level as in tomato cultivation. Mineral content in the groundwater decreased with increasing distance from the objects ...
