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• The Effect of Tillage Treatments on Soil Temperature at Planting and on Corn (Zea mays L.) Yield

  40-44

  Miklós Pakurár

  László Lakatos

  János Nagy

  Views:

  564

  The effect of soil temperature was evaluated on the yield of the Occitan corn hybrid at a depth of 5 cm. We examined this effect on the time required from planting to emergence for three average durations: five, ten and fifteen days, all calculated from the day of planting. Winter plowing (27 cm), spring plowing (23 cm), disc-till (12 cm) treatments and 120 kg N per hectare fertilizer were applied. As a result of our analysis, we determined the post planting optimum soil temperatures for various time periods. The average soil temperature for a time period of 15 days post planting is the most usable for determining actual yields, followed by ten days, with five days proved to be the least usable (winter plow R² = 0.86, spring plow R² = 0.87, disc-till R² = 0.64).

• Hydro-cultural growing of cut flower in greenhouse

  139-146

  Péter Lévai

  Zsuzsa Turiné Farkas

  Views:

  221

  The closed system hydro-cultural growing is environmentfriendly,  the chemical fertilizer used for nourishing material supply does not contaminate the soil water and it is possible to eliminate the chemical materials accumulating during the disinfection of the soil getting into the environment. It can be mechanized and regulated well so the optimum growing conditions can be fixed for the plant and as a consequence higher yield can be reached both for the carnation and for Zantedeschia and for Rosa. Growing method with saving both the nourishing material and the water. Taking all the above into consideration timing is easier and better, it can be programmed better than the traditional chemo-cultural growing.