Differentiated application of nitrogen fertilizers based on optical sensor readings
Laen...
Kuupäev
2021
Kättesaadav alates
Autorid
Shchuklina, O.
Afanasiev, R.
Voronchikhina, I.
Klimenkova, I.
Komkova, A.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
The article considers the method of variable rate application of top dressing with
nitrogen fertilizers in spring barley crops in the system of precise agriculture. The principle of is
based on the in-process diagnosis of plants state in key phases of development and the
introduction of necessary dose of top dressing in specific field areas. To assess the plants state, a
GreenSeeker optical sensor, which measures the NDVI (Normalized Difference Vegetation
Index). The tailored application of top dressing increases the yield of spring barley grain by 14.2%
compared to the application of fertilizers with one calculated rate for the entire plot or field
(Skudra, 2017, Hamann, 2020).
Kirjeldus
Received: April 2nd, 2021 ; Accepted: May 5th, 2021 ; Published: May 19th, 2021 ; Correspondence: oashuklina@gmail.com
Märksõnad
fertilizers, agriculture, nitrogen, top dressing, precision agriculture, ammonium nitrate, spring barley, articles