Square of leaf area and photosynthetic potential of plants of pease depending on fertilizer and inoculation of seeds

Abstract

The purpose. To determine features of formation of the square of leaf area and photosynthetic potential of pease of moustached morphotype in Forest-steppe region of Ukraine depending on fertilizer and inoculation of seeds. Methods. Field, laboratory, calculation-mathematical. Cultivars of domestic selection Tsarevitch and Deviz, biological preparation Rizohumin were used. Square of leaves was determined by the method of scanning the surface by means of computer program IpSquare. Results. Square of leaf area dynamically varied and depended on weather environment, nutrition background and inoculation of seeds. Application of phosphorus in top-dressing optimized assimilation of nitrogen. Inoculation of seeds promoted heightening of efficiency of nutrients of artificial fertilizers which were added both to base and foliar fertilizers. Conclusions. Greater square of leaf area and photosynthetic potential was gained at cultivar Tsarevitch. The greatest content of chlorophyll pigment and square of leaves of pease were gained at application N30P60K60 under basic soil cultivation and N30P30 in top-dressing (during vegetation) with simultaneous inoculation.