Research article | Open Access | Peer review: yes

Received: 29.03.2018 | Accepted: 20.07.2018 | Available online: 25.07.2018

The influence of N-foliar fertilization and humin treatment on yield and chemical composition of forage spring barley

Vertebnyi Vitalii Evgenevich, Dubovitskaia Viktoriia Igorevna, Gurova Tatiana Alek-sandrovna, Kononchuk Pavel Yurevich, Moskvin Mikhail Aleksandrovich, Rizhiia Elena Yanovna, Tkacheva Aleksandra Yurevna

Federal state budgetary scientific institution «Agrophysical research institute», Saint-Petersburg, Russia

DOI: 10.35688/2413-8452-2018-02-008

Abstract

The paper presents the results of the foliar feeding application in the technology of spring barley cultivation for fodder purposes. The effectiveness of foliar nitrogen fertilizer appl ication and treatment with humic fertilizer «Stimulife» is also discussed in the paper. The use of foliar top dressing in a rate of 30 kg N/ha on an unfertilized background contributed to a 28%-increase in the productivity of spring barley. Subsequent treatment of the crop with «Stimulife» resulted in an additional 12%-increase in productivity. Application of a lower nitrogen rate (20 kg N/ha) on the N75P50K50 background contributed to 11%-increase in barley productivity, while with subsequent treatment with «Stimulife» - to 19%. Foliar fertilizer application at a rate of 10 kg/ha on the most fertilized background (N100P75K75) resulted in an increase in barley productivity of 15%, and with subsequent treatment with «Stimulife» - of 30%. The energy yield of the crop and grain chemical composition was estimated. Differences in the experiment treatments resulted in a change in the chemical composition of barley grain. The combined use of foliar nitrogen fertilizer (30 kg N/ha) with «Stimulife» stimulated an increase in the nitrogen content in barley grain of 50%. Reducing the nitrogen rate to 20 kg N/ha led to an increase in nitrogen in the grain of 44%. The minimum rate of nitrogen in top dressing (10 kg N/ha) allowed to increase the nitrogen content in grain by 16%. Thus, foliar differentiated nitrogen fertilization together with «Stimulife» treatment on an increasing background of mineral fertilizers contributed to an increase in the protein content of barley grain from 9 to 17%.

Keywords

barley, feed, feed quality, topdressing, crop performance

Cite

Vertebnyj V.E., Dubovickaya V.I., Gurova T.A., Kononchuk P.Yu., Moskvin M.A., Rizhiya E.Ya., Tkacheva A.Yu. The influence of N-foliar fertilization and humin treatment on yield and chemical composition of forage spring barley // Ekologiya i stroitelstvo. 2018. # 2. P. 55–61. DOI: 10.35688/2413-8452-2018-02-008.

© 2018 The Author(s), Ekologiya i Stroitelstvo.