The influence of red algae ahnfeltia tobuchiensis on the growth and development of cress salad under protected ground

Abstract

In the modern world, special attention is paid to the rational use of natural resources and the provision of the population with safe food for health. In this connection, the study of the effectiveness of algae-based fertilizers is a relevant and promising direction, as it allows to reduce chemical pressure on agrobiocenoses. This article presents the results of a study on the effect of fertilization from the red alga Ahnfeltia tobuchiensis on the germination and growth rate of watercress Zabava variety in protected ground conditions. When making anfeltia, it was found that the effectiveness of its use as a fertilizer significantly depends on the size of its particles. The weight of the harvested watercress crop was on average 87% higher compared to the control when using fertilizer with a particle size of 1-5 mm. The rate of development of watercress when using anfelcia with a particle size of 0.25-1.0 mm was at the control level, and the yield weight was 44.5% more than in the control. The minimum crop weight was observed when using fertilizer with a particle size of more than 5 mm. When anfelcia is added as a fertilizer to the soil in the watercress samples, an increase in the content of mineral substances in general and individual elements (potassium, calcium, sodium, manganese, etc.) is noted.