Reducing the impact of chemicalization and harmful organisms in agricultural crops presents many approaches: microbiological, genetic, ecological, etc. Selecting and improving the genetic resources of both seed material, varieties and hybrids of agricultural crops but especially of plant protection and fertilization products (organic products) is the biggest concern of farmers in the last period. The elaboration and use of means of biological control of both the excessive chemicalization and of the pests in the agricultural crops represent the foundation for the application of microbiology as a science in the agricultural field. The paper aimed to present the action of organic fertilizers on the soil and implicitly of agricultural crops (crop plants and agricultural production). The use of chemical fertilization and plant protection products in agricultural crops led to the emergence of the phenomenon of soil supersaturation with chemical elements. The pollution of the soil with chemical elements has led to the increase of the pH from a basic / neutral one to an acid one. The acidification of the soil results in the decrease of the agricultural production, the decrease of the resistance of the plants to certain pests of the structure of the soil but especially the pollution of the soil, of the groundwater with certain chemical elements found in the structure of the fertilizers. The increase of the productions (in the organic fertilized lots) compared to a chemical fertilizer proves that the action of the bacteria in the content of the organic fertilizer has a positive effect on the soil and the crops. The strategy proposed by the researchers from Romvac Company SA, in the field of microbiology, is that of the formulation and use of bacterial biopreparations in the protection of agricultural crops that are of great economic interest, in the elaboration and extension of the range of ecological plant protection products as well as in the processes. to try to replace the conventional chemical fertilizers (pollutants0 with organic fertilizer products based on bacterial cultures. The advantages of these strategies proposed by the researchers are represented by the decrease of the attacks of pests in agricultural crops, the soil ecology with the help of bacteria, the favorable evolution of agricultural ecosystems but especially obtaining a high yield of agricultural crops, implicitly the agricultural production and ensuring superior qualities to the products derived from agricultural production.

bacterial biopreparations, biological protection and fertilization, ecology, ecological fertilization technologies

biology

Presentation: oral