Proceedings of the International Scientific Conference The Fifth Technological Order: Prospects for the Development and Modernization of the Russian Agro-Industrial Sector (TFTS 2019)

The Environment–Forming Role of Perennial Grasses in Agriculture of the Forest-Steppe of Western Siberia

Authors
Vasiliy Boiko, Natalia Voronkova, Artem Timokhin, Natalia Balabanova
Corresponding Author
Vasiliy Boiko
Available Online 29 January 2020.
DOI
https://doi.org/10.2991/assehr.k.200113.176How to use a DOI?
Keywords
soil fertility, nitrogen, phosphorus, perennial grasses, alfalfa, meadow chernozem soil
Abstract

Results of field experiments in crop rotations of different specialization are presented – cereals-fallow and cereals-grasses rotations. The influence of various forecrops (fallow, Alfalfa) on individual indicators of soil fertility has been established. Negative nitrogen balance of -28 kg/ha was revealed with its intensity of 66Results of field experiments in crop rotations of different specialization are presented – cereals-fallow and cereals-grasses rotations. The influence of various forecrops (fallow, Alfalfa) on individual indicators of soil fertility has been established. Negative nitrogen balance of -28 kg/ha was revealed with its intensity of 66% in a cereals-fallow rotation. The inclusion of perennial legumes, including alfalfa, provides a positive nitrogen balance in the crop rotation – 21 kg/ha without additional fertilizer with a deficiency of its intensity of 119Results of field experiments in crop rotations of different specialization are presented – cereals-fallow and cereals-grasses rotations. The influence of various forecrops (fallow, Alfalfa) on individual indicators of soil fertility has been established. Negative nitrogen balance of -28 kg/ha was revealed with its intensity of 66% in a cereals-fallow rotation. The inclusion of perennial legumes, including alfalfa, provides a positive nitrogen balance in the crop rotation – 21 kg/ha without additional fertilizer with a deficiency of its intensity of 119%. Under such conditions, the content of nitrate nitrogen in soil, before sowing the wheat after plowing the bean component was high, as well as after fallowing, provides an increase in the yield of spring soft wheat by 5,0 kg/ha compared to wheat. Studies were conducted in similar conditions on irrigated meadow-chernozem soil in an eight-field stationary cereals-grasses crop rotation. The consumption of macronutrients, including nitrogen with a crop of various perennial grasses, as well as the responsiveness of alfalfa, bromus and melilot to the level of nitrogen-phosphorus nutrition, were studied. The current nitrogen mobilization under these conditions of bromus vegetation on the background without fertilizers was 76 kg/ha. When optimizing the phosphate regime of the soil, this indicator increased to 99 kg/ha. Alfalfa nitrogen removal increases on similar agricultural backgrounds due to symbiotic fixed nitrogen by 89 and 193 kg/ha, respectively, or by 2,2 and 2,9 times. In such conditions, perennial legumes (alfalfa and melilot) are highly productive without nitrogen fertilizers and respond positively to improved nutritional conditions for phosphorus. This is especially evident in alfalfa of 1-5 years of life, where harvesting of green mass and fodder units increases to 40,56 and 7,00 t/ha, respectively, or by 86Results of field experiments in crop rotations of different specialization are presented – cereals-fallow and cereals-grasses rotations. The influence of various forecrops (fallow, Alfalfa) on individual indicators of soil fertility has been established. Negative nitrogen balance of -28 kg/ha was revealed with its intensity of 66% in a cereals-fallow rotation. The inclusion of perennial legumes, including alfalfa, provides a positive nitrogen balance in the crop rotation – 21 kg/ha without additional fertilizer with a deficiency of its intensity of 119%. Under such conditions, the content of nitrate nitrogen in soil, before sowing the wheat after plowing the bean component was high, as well as after fallowing, provides an increase in the yield of spring soft wheat by 5,0 kg/ha compared to wheat. Studies were conducted in similar conditions on irrigated meadow-chernozem soil in an eight-field stationary cereals-grasses crop rotation. The consumption of macronutrients, including nitrogen with a crop of various perennial grasses, as well as the responsiveness of alfalfa, bromus and melilot to the level of nitrogen-phosphorus nutrition, were studied. The current nitrogen mobilization under these conditions of bromus vegetation on the background without fertilizers was 76 kg/ha. When optimizing the phosphate regime of the soil, this indicator increased to 99 kg/ha. Alfalfa nitrogen removal increases on similar agricultural backgrounds due to symbiotic fixed nitrogen by 89 and 193 kg/ha, respectively, or by 2,2 and 2,9 times. In such conditions, perennial legumes (alfalfa and melilot) are highly productive without nitrogen fertilizers and respond positively to improved nutritional conditions for phosphorus. This is especially evident in alfalfa of 1-5 years of life, where harvesting of green mass and fodder units increases to 40,56 and 7,00 t/ha, respectively, or by 86% and 54Results of field experiments in crop rotations of different specialization are presented – cereals-fallow and cereals-grasses rotations. The influence of various forecrops (fallow, Alfalfa) on individual indicators of soil fertility has been established. Negative nitrogen balance of -28 kg/ha was revealed with its intensity of 66% in a cereals-fallow rotation. The inclusion of perennial legumes, including alfalfa, provides a positive nitrogen balance in the crop rotation – 21 kg/ha without additional fertilizer with a deficiency of its intensity of 119%. Under such conditions, the content of nitrate nitrogen in soil, before sowing the wheat after plowing the bean component was high, as well as after fallowing, provides an increase in the yield of spring soft wheat by 5,0 kg/ha compared to wheat. Studies were conducted in similar conditions on irrigated meadow-chernozem soil in an eight-field stationary cereals-grasses crop rotation. The consumption of macronutrients, including nitrogen with a crop of various perennial grasses, as well as the responsiveness of alfalfa, bromus and melilot to the level of nitrogen-phosphorus nutrition, were studied. The current nitrogen mobilization under these conditions of bromus vegetation on the background without fertilizers was 76 kg/ha. When optimizing the phosphate regime of the soil, this indicator increased to 99 kg/ha. Alfalfa nitrogen removal increases on similar agricultural backgrounds due to symbiotic fixed nitrogen by 89 and 193 kg/ha, respectively, or by 2,2 and 2,9 times. In such conditions, perennial legumes (alfalfa and melilot) are highly productive without nitrogen fertilizers and respond positively to improved nutritional conditions for phosphorus. This is especially evident in alfalfa of 1-5 years of life, where harvesting of green mass and fodder units increases to 40,56 and 7,00 t/ha, respectively, or by 86% and 54%, with 82,76 GJ of exchange energy per hectare.

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© 2020, the Authors. Published by Atlantis Press.
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This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Cite this article

TY  - CONF
AU  - Vasiliy Boiko
AU  - Natalia Voronkova
AU  - Artem Timokhin
AU  - Natalia Balabanova
PY  - 2020
DA  - 2020/01/29
TI  - The Environment–Forming Role of Perennial Grasses in Agriculture of the Forest-Steppe of Western Siberia
BT  - Proceedings of the International Scientific Conference The Fifth Technological Order: Prospects for the Development and Modernization of the Russian Agro-Industrial Sector (TFTS 2019)
PB  - Atlantis Press
SP  - 231
EP  - 234
SN  - 2352-5398
UR  - https://doi.org/10.2991/assehr.k.200113.176
DO  - https://doi.org/10.2991/assehr.k.200113.176
ID  - Boiko2020
ER  -