Optimization of the content of easily hydrolyzable nitrogen in the cultivation of narrow-leaved lupine on unproductive lands

Viktor Shevchenko; Natalya Popova; Galina Bondareva; Aleksey Solovyev

doi:10.55186/25876740_2026_69_5_743

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OPTIMIZATION OF THE CONTENT OF EASILY HYDROLYZABLE NITROGEN IN THE CULTIVATION OF NARROW-LEAVED LUPINE ON UNPRODUCTIVE LANDS Optimization of the content of easily hydrolyzable nitrogen in the cultivation of narrow-leaved lupine on unproductive lands

АА Аа

Published in INTERNATIONAL AGRICULTURAL JOURNAL · Issue 5, 2026 · Pages 743–747 · Rubric: Scientific support and management of agrarian and industrial complex

DOI: https://doi.org/10.55186/25876740_2026_69_5_743

Received: 21.05.2026 Accepted: 01.07.2026 Published: 15.09.2026

Authors

Viktor Shevchenko

ORCID Scopus SPIN

Natalya Popova

ORCID Scopus SPIN

Galina Bondareva

ORCID Scopus SPIN

Aleksey Solovyev

ORCID Scopus SPIN

Viktor Shevchenko

Academic degree: doctor of agricultural sciences

Science rang: professor ; academician Russian Academy of Sciences

Federal Scientific Center for Hydraulic Engineering and Land Reclamation named after A.N. Kostyakova director · Russian Federation · Moscow

ORCID Scopus SPIN

Natalya Popova

Academic degree: candidate of agricultural sciences

Science rang: docent

Federal Scientific Center for Hydraulic Engineering and Land Reclamation named after A.N. Kostyakova leading researcher · department for management of soil fertility of reclaimed lands · Russian Federation · Moscow

ORCID Scopus SPIN

Galina Bondareva

Academic degree: doctor of technical sciences

Science rang: docent

Federal Scientific Center for Hydraulic Engineering and Land Reclamation named after A.N. Kostyakova chief researcher · department for management of soil fertility of reclaimed lands · Russian Federation · Moscow

ORCID Scopus SPIN

Aleksey Solovyev

Academic degree: doctor of agricultural sciences

Science rang: professor

Federal Scientific Center for Hydraulic Engineering and Land Reclamation named after A.N. Kostyakova head of the department · department for management of soil fertility of reclaimed lands · Russian Federation · Moscow

ORCID Scopus SPIN

ABSTRACT

Using the example of sod-podzolic soils of the Upper Volga region, the theoretical and practical aspects of the influence of various fertilizer systems (factor A) and multi-depth methods of their embedding (factor B) on the balance of easily hydrolyzable nitrogen and the degree of its fixation during cultivation of narrow-leaved lupine on seeds have been studied. It was found that in the control variant (application of only crushed plant residues), the nitrogen balance due to symbiotic nitrogen fixation in the total of two rotations of crop rotation was +38.41 kg/ha against the background of minimal processing and +49.31 kg/ha with the use of dump plowing, and the degree of fixation was +27.4 and +31.9%, respectively. The addition of calculated doses of NPK to the planned yield reduced the balance of easily hydrolyzable nitrogen during the study period by 17.04 kg/ha against the background of minimal treatment and by 34.50 kg/ha with the use of dump plowing, and the degree of its fixation decreased by 19.4 and 26.5%, respectively, which is significant for the interaction of AB factors. With the systematic utilization of liquid livestock effluents, nitrogen return exceeded its removal from the grain harvest by 88.31 kg/ha against the background of minimal processing and by 82.62 kg/ha using dump plowing, whereas when sealing the solid fraction of manure, the excess was 155.19 and 147.16 kg/ha, respectively. Sealing of all types of fertilizers with disk implements is more effective than dump plowing both in terms of the formation of balance and the degree of fixation of easily hydrolyzable nitrogen in the arable layer of cultivated soils, therefore it can be recommended as a promising energy-saving technique for the cultivation of narrow-leaved lupine in the Upper Volga region.

KEYWORDS

fertilizer system, liquid effluents, solid fraction of manure, minimal tillage, dump plowing, sod-podzolic light loamy soils, nitrogen balance and fixation

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Literary Editor

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Shevchenko V. A., Popova N. P., Bondareva G. I., Solovyev A. M. Optimization of the content of easily hydrolyzable nitrogen in the cultivation of narrow-leaved lupine on unproductive lands // INTERNATIONAL AGRICULTURAL JOURNAL. 2026. no. 5. pp. 743-747. DOI: https://doi.org/10.55186/25876740_2026_69_5_743. (Date of access 21.10.2026).

MLA

Viktor Shevchenko, Popova N. P., Bondareva G. I., Solovyev A. M.. "Optimization of the content of easily hydrolyzable nitrogen in the cultivation of narrow-leaved lupine on unproductive lands." INTERNATIONAL AGRICULTURAL JOURNAL.5 (2026): 743-747. DOI: https://doi.org/10.55186/25876740_2026_69_5_743.

APA

Shevchenko V. A., Popova N. P., Bondareva G. I., Solovyev A. M. (2026). Optimization of the content of easily hydrolyzable nitrogen in the cultivation of narrow-leaved lupine on unproductive lands. INTERNATIONAL AGRICULTURAL JOURNAL(5), 743-747. https://doi.org/10.55186/25876740_2026_69_5_743

Chicago

Viktor Shevchenko, Popova N. P., Bondareva G. I., Solovyev A. M.. "Optimization of the content of easily hydrolyzable nitrogen in the cultivation of narrow-leaved lupine on unproductive lands." INTERNATIONAL AGRICULTURAL JOURNAL, no. 5 (2026): 743-747. https://doi.org/10.55186/25876740_2026_69_5_743.

WIKI

{{cite journal | author = Shevchenko V. A., Popova N. P., Bondareva G. I., Solovyev A. M. | title = Optimization of the content of easily hydrolyzable nitrogen in the cultivation of narrow-leaved lupine on unproductive lands | journal = INTERNATIONAL AGRICULTURAL JOURNAL | year = 2026 | issue = 5 | pages = 743-747 | doi = 10.55186/25876740_2026_69_5_743 }}

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OPTIMIZATION OF THE CONTENT OF EASILY HYDROLYZABLE NITROGEN IN THE CULTIVATION OF NARROW-LEAVED LUPINE ON UNPRODUCTIVE LANDS Optimization of the content of easily hydrolyzable nitrogen in the cultivation of narrow-leaved lupine on unproductive lands

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