Efficiency of ash components using in organo-mineral composition under the cultivation of winter wheat

Abstract

The problem of optimization of phosphorus nutrition under the use of organo-mineral composition containing ash silicon and ash of sewage sludge is considered. It is indicated on the prospects of application of the ash components in the composition of the fertilizer mixture in order to mobilize phosphates of low solubility. The results of researches with determination of efficiency of use of compositions for cultivating winter wheat, the positive influence on root formation, absorption capacity for use of plants of hard soluble phosphate of sediment ash are proved. The using ash silicon together with phosphates of low solubility in the organo-mineral composition caused an increase in the total length of the root system, the total adsorption and working absorption surface of the roots, which contributed to an increase in phosphorus removal rates compared with tricalcium phosphate. The growth of phosphorus removal rates under the use of organo-mineral composition with Si component can be explained by additional absorption of phosphorus by the root system with increased surface and absorbing activity.