Efficiency of barley foliar feeding under conditions of leached chernozem fertility heterogeneity

International Scientific Conference «AGRITECH-2019: Agribusiness, Environmental Engineering and Biotechnologies»

农业科学;生态环境科学;生物科学

Ivchenko, V.K.^1 ; Dubrovitsky, V.A.^2 ; Sorokina, O.A.^1 ; Lugantseva, M.V.^3 ; Eremina, E.V.^4

State Federal-Funded Educational Institution of Higher Professional Education, Krasnoyarsk State Agricultural University, 90 Mira Ave., Krasnoyarsk

660049, Russia^1

Krasaeroskan, OOO, 10a-55 Akademgorodok Str., Krasnoyarsk

660036, Russia^2

Federal Autonomous Establishment of Continuing Professional Education, Institute of Continuous Education in Forestry, 1/1 Zavodskaya Str., Divnogorsk, Krasnoyarsk Territory

663090, Russia^3

Federal State Autonomous Educational Institution for Higher Education, Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk

660049, Russia^4

关键词: Crop rotation system;    Fertilizer dose;    Field experiment;    Index determination;    Mineral nitrogen;    Soil fertility;    Spring wheat;    Tissue diagnostics;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/315/3/032024/pdf
DOI  :  10.1088/1755-1315/315/3/032024

来源: IOP

【 摘 要 】

The article presents the results of studies conducted on the effectiveness of barley foliar feeding under field experiment conditions. The studies were carried out in a field stationary experiment in a grain-vapor-tilled crop rotation system with the following rotation: green-manured fallow - spring wheat - barley - maize - spring wheat. The object of the research was leached chernozem. Rotation cropping was sown on two degrees of ground fertilization - without fertilizer and with fertilizer. Urea (carbamide) was added as barley foliar feeding. Spring wheat that was sown on rape plant green-manured fallow served as the forecrop to the barley. Soil fertility heterogeneity was determined by examining barley crops during the tillering period (biomass scanning). Unmanned aerial vehicles manufactured by Krasaeroskan were used for this purpose. The results of NDVI index determination in the field experiment formed the basis for determining the mineral nitrogen fertilizer doses. Such doses were refined by tissue diagnostics. It was established that foliar feeding with mineral nitrogen fertilizers (urea) contributed to an increase in barley productivity.