ECOLOGICAL CONTRIBUTIONS TO SOME SOILS IN GREENHOUSES FOR VEGETABLE PRODUCTION

Abstract

Due to the continuous growth of the population, there has always been a concern to increase vegetable production, but without the use of chemical fertilizers and pesticides. In this article, we propose a new direction for improving the soils of vegetable greenhouses, by using clays combined with certain substances to fulfil a protective role against pests and a role of enhancing the rooting of plants. For this experiment, we used hydrotalcite (anionic clay), to which we interspersed silver, and then we made a mixture with spirulina (Spirulina Arthrospira Platensis) and powder from willow extraction (Salix L). We worked comparatively on a soil that came from the soil harvested from Vanatori Neamt Natural Park, compared to a soil made in the laboratory by dosing this mixture (clays + spirulina + willow extract) in a proportion of 3, 5 and 7 %. The plant on which the experiment was performed was the green climbing bean Phaseolus vulgaris L, the “Theodora” biotype. The beans were purchased from the Research and Development Station for vegetable growing, Buzau. The experiment took place in a specially arranged greenhouse within the company FRUCTEX SRL from Bacau. Encouraging results were obtained regarding the germination rate of the beans, the height of the plants, the number of leaves and the number of pods.

Keywords

• agriculture
• beans
• clay
• nutrients
• vegetables