ROLE AND VALUE OF SILICON AND SILICEOUS SUBSTANCES IN AGROECOSYSTEMS
In the article presented multidimensional review of theoretical data and experimental researches of the silicon substances involved in biogeochemical system "the soil - the plant". The considered works describe value of silicon and its substances in the soil absorbing complex, physiology and optimization of food of agricultural cultures, optimization of their ecological component at cultivation. Value of silicon in induction (activization) of mechanisms of internal physiological system of resistance of plants to abiotic stresses and as activator of protection against defeat insects-wreckers and pathogenic microorganisms is shown. Silicon and its connections possess growth the stimulating properties therefore application the silicate containing of growth factors promotes increase of resistance of cultural plants to adverse factors of environment and in general optimization of a phytosanitary background of agricultural crops. In conclusion of work justification about need of detailed studying of influence of siliceous substances on a soil and biotic complex of agrobiogeocenoses and identification of physiological and biochemical mechanisms of action of compounds of silicon is specified in a vegetable organism regarding its protection against phytopathogens.