Open AccessInfluence of precursors on water regime indicators, soil infestation and productivity of spring oats
Author(s) -
А П Авдеенко,
С. С. Авдеенко
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/1010/1/012010
Subject(s) - sunflower , agronomy , environmental science , water content , yield (engineering) , avena , sowing , productivity , helianthus annuus , spring (device) , chernozem , biology , soil water , soil science , mechanical engineering , materials science , geotechnical engineering , macroeconomics , economics , metallurgy , engineering
In the conditions of the Rostov region of the Russian Federation on ordinary micellar-carbonate chernozems, the influence of winter wheat and sunflower as precursors of spring oats on the parameters of the water regime, the structural and aggregate composition of the soil, its weediness and biological activity in oat crops was studied. The issues of formation of yield structure indicators depending on the predecessor and its influence on the biological yield of oats are considered. It was found that a greater amount of soil moisture both before sowing and during the growth and development of oat plants was after winter wheat due to the optimization of soil structure and its biological activity. Sunflower promotes clogging of the soil under oats and reduces the number of agronomically valuable soil aggregates, as a result of which the grain yield was lower than after winter wheat by 0.21 t/ha. Favorable conditions for the growth of oat plants after winter wheat are manifested in an increase in the number of productive stems compared to the predecessor sunflower by 15%.