of the Urals

Russian Journal of Agricultural Research

The publication is registered by the Ministry of the Russian Federation
for Affairs of the Press, Television and Radio Broadcasting and Mass Communication Media.
Registration certificate: PI number 77-12831 on May 31, 2002
Subscription index in catalog «Russian Press» - 16356
ISSN 1997 - 4868 (Print)

The Journal is included in the list of the leading peer-reviewed scientific journals and publications, which should be published by the main results of theses for the degree of doctor and Ph.D.
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Journal is included in the list of VAK (from 25.09.2017), No. 291

ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 12 (118) 2013


Ерёмин Д.И. доктор биологических наук, профессор Государственный аграрный университет Северного Зауралья

Уфимцева М. Г. кандидат сельскохозяйственных наук, доцент Государственный аграрный университет Северного Зауралья


Rational application of mineral fertilizers as the factor of ecological safety of agrocenosis

 In a modern agriculture the leading role in increase of arable land efficiency belongs to mineral fertilizers which at minimum
expenses give the maximum effect with positive economic benefit. However irrational application of mineral fertilizers
can result not only in crop decrease, but also in deterioration of ecological conditions of agrocenosis. Stationary experience
was begun in 1995 on low-powered, heavy-leached black earth, with typical for Western Siberia characteristics and properties.
The research was carried out at a grain fallow. Calculation of doses of fertilizers on the planned yield of spring wheat, 4.0, 5.0
and 6.0 t/ha has been made annually by an elemental balance. The average dose of fertilizers over years of research, respectively
amounted N125P35; N200P65; N270P115 kg of active ingredient per hectare. The fertilizers were applied before sowing under
sowing cultivation. As a result of a long-term research it has been established, that in a forest-steppe zone of the Urals the probability
of 3.0 t/hectares productivity of spring wheat makes 100 %; 4.0 t/hectares makes 76 %, that is reasonable for economy.
The yield of 5.0 and 6.0 t/hectares decreases to 45 % and 9 % accordingly. Application of mineral fertilizers on a planned
productivity 6.0 t/hectares of spring wheat leads to migration of nitrates to the depth of 80 cm at the first half of vegetation.
At a lower level of a mineral feeding the nitrates remain in the layer 0–50 cm. Out of 270 kg of nitrogen introduced at the end
of vegetation period, 22 kg (8 % of a dose) is found at the layer of 80–100 cm and this can cause pollution of subsoil waters.


mineral fertilizers, migration of nitrates, agrocenosis, system of fertilizers, leached black earth


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