Formation of the quality of barley grain with modern technologies in the Volga region

Abstract

The article presents studies in the six-field grain-fallow crop rotation (2011-2018) to determine the impact of various technologies on the quality of spring barley grain in the chernozem steppe of the Middle Volga region. During the years of research in 2011, 2014 and 2017, favorable conditions for the growth of cultural development were noted (SCC for May–July 0.64-1.33). In 2015 and 2018 – unfavorable (SCC 0.45-0.53), in the rest – conditions were close to normal. It is established that intensive technologies with minimal tillage, without reducing the yield of barley, in comparison with the traditional one, do not worsen the indicators of the nature and weight of 1000 seeds. The grain quality indicators were significantly influenced by the SCC of the growing season of the crop. Improving the moisture content of crops contributed to an increase in the nature of grain from 614.0-627.4 g / l to 641.2-655.6 g / l (2.4-6.5 %), the weight of 1000 seeds from 35.2-37.2 g to 42.1-44.2 g (14.2-23.0 %). The highest protein content was found in dry years – 12.2-13.8 %, which is 0.1-2.1% more than in wet years, while the combined use of intensification agents (fertilizers, herbicides, insecticides) on technologies with minimal tillage provided a greater degree of protein stabilization in different weather conditions in years. To increase the efficiency, yield and stabilization of grain quality at the level of the required indicators, a technology with minimal tillage, complex application of plant protection products against pests and weeds, and pre-sowing application of ammonium nitrate N30 is proposed.