Yield formation of spring wheat and maize in the application of fertilizers and growth stimulants

The purpose of researches - increase of productivity of spring wheat due to the use of drugs Megamix in foliar feeding, higher yields of maize due to the use of drugs Megamix N10 and Aminocate. application of fertilizers. Field experience on spring wheat was laid during 2011-2013 on the experimental field of the Department of plant growing and selection of Samara state agricultural Academy. Evaluation of the structure of the crop revealed significant changes in its elements in the use of drugs Megamix. Increases the safety of the plants, increases stem length, weight of 1000 grains, grain number in ear and as a result, the grain weight spike. Yields are largely dependent on the conditions of the year. Favorable in 2011 it is significantly higher than in the unfavourable dry 2012 and 2013. The average for the three years maximum yields were obtained at variants of use of the drug Megamix universal 0,5 kg/ha - 19,0 t/ha (without fertilizer application) and 23.4 kg/ha (when making N45Р45К45). Research conducted at the experimental field of the research laboratory «Feed» Samara state agricultural Academy in 2015-2017 it was found that the yields of corn hybrids in the application of mineral fertilizers made up 4.70...of 7.17 t / ha. At the same time, the most productive were medium early hybrid Hicago - 7,17 t/ha. in the application of growth promoters crop of corn is within -...4,86 5,86 t/ha, where the highest grain yield obtained from hybrid Dolphin when using the drug Megamix N10. Maximum leaf area observed in the phase of its emergence from the medium early hybrid on the Eurostar on the first background - 37,79 thousand m2/ha. To the phase of milky - wax ripeness leaf area made up of 21.27...35,84 thousand m2/ha. the Highest leaf area in variants with application of growth stimulators was observed in hybrids Dolphin and Krasnodar 194 - 35,78 and of 37.06 thousand m2/ha, with the use of the drug Aminocate. The maximum indicators of AF are observed in the medium-early hybrid TC 202-1.95 million m2 / ha days when applying mineral fertilizers on the third background, as well as in the early - maturing hybrid Dolphin-1.92 million m2/ ha days on the third background of mineral nutrition. On variants with the use of growth stimulants NPF is at the level of 6.82... 8.10 g / m2 day with the highest rate on the hybrid Krasnodar 194 when using the drug Aminocate.