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Assimilation of /sup 15/N-labelled urea nitrogen and ammonium nitrate nitrogen by plants in case of root and non-root fertilization

Journal Article:

Abstract

Assimilation of /sup 15/N labeled urea and ammonium nitrate in root and foliar application by spring wheat and barley has been studied during 1970-1973 period in a series of vegetative experiments at the Department of Agrochemistry, Timiryazev Agricultural Academy, and at D.N. Pryanishnikov Experimental Agrochemical Station. Additional fertilizer nitrogen applied at later ontogenesis stages (flowering and milky ripeness) is utilized mostly for protein synthesis in developing grains, thus leading to a significant increase in the relative grain protein content. A transfer of a part of nitrogen from the main portion of fertilizer at later stages of nitrition results, at the same time, in a lower yield. Nitrogen utilization degree of urea and ammonium nitrate, when introduced before sowing or at the flowering stage is similar but in the latter case, however, additional assimilation of soil nitrogen is lower. The assimilation rate of nitrogen in root application is the lower the later the fertilizer is applied. When ammonium nitrate is additionally applied as nutrition to barley at the milky ripeness stage, ammonia and nitrate nitrogen are assimilated at the same rate and to the same extent but ammonia nitrogen is more rapidly used for protein synthesis and the rate of its  More>>
Publication Date:
Jan 01, 1974
Product Type:
Journal Article
Reference Number:
AIX-08-321556; EDB-77-115255
Resource Relation:
Journal Name: Dokl. TSKhA (Timiryazev. Sel'skokhoz. Akad.); (USSR); Journal Volume: 203; Other Information: 11 refs
Subject:
60 APPLIED LIFE SCIENCES; AMMONIUM COMPOUNDS; FOLIAR UPTAKE; ROOT ABSORPTION; UREA; BARLEY; FERTILIZERS; METABOLISM; NITRATES; NITROGEN; NITROGEN 15; ONTOGENESIS; PROTEINS; RIPENING; ROOTS; SEASONAL VARIATIONS; SEEDS; TRACER TECHNIQUES; WHEAT; AMIDES; BIOMASS; CARBONIC ACID DERIVATIVES; CEREALS; CRYOGENIC FLUIDS; ELEMENTS; ENERGY SOURCES; FLUIDS; GRAMINEAE; GRASS; ISOTOPE APPLICATIONS; ISOTOPES; LIGHT NUCLEI; NITROGEN COMPOUNDS; NITROGEN ISOTOPES; NONMETALS; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PLANTS; RENEWABLE ENERGY SOURCES; STABLE ISOTOPES; UPTAKE; VARIATIONS; 553001* - Agriculture & Food Technology- Tracer Techniques- (-1987)
OSTI ID:
7302870
Country of Origin:
USSR
Language:
Russian
Other Identifying Numbers:
Journal ID: CODEN: DTSKA
Submitting Site:
INIS
Size:
Pages: 71-83
Announcement Date:

Journal Article:

Citation Formats

Muravin, E A, Kozhemyachko, V A, and Vernichenko, I V. Assimilation of /sup 15/N-labelled urea nitrogen and ammonium nitrate nitrogen by plants in case of root and non-root fertilization. USSR: N. p., 1974. Web.
Muravin, E A, Kozhemyachko, V A, & Vernichenko, I V. Assimilation of /sup 15/N-labelled urea nitrogen and ammonium nitrate nitrogen by plants in case of root and non-root fertilization. USSR.
Muravin, E A, Kozhemyachko, V A, and Vernichenko, I V. 1974. "Assimilation of /sup 15/N-labelled urea nitrogen and ammonium nitrate nitrogen by plants in case of root and non-root fertilization." USSR.
@misc{etde_7302870,
title = {Assimilation of /sup 15/N-labelled urea nitrogen and ammonium nitrate nitrogen by plants in case of root and non-root fertilization}
author = {Muravin, E A, Kozhemyachko, V A, and Vernichenko, I V}
abstractNote = {Assimilation of /sup 15/N labeled urea and ammonium nitrate in root and foliar application by spring wheat and barley has been studied during 1970-1973 period in a series of vegetative experiments at the Department of Agrochemistry, Timiryazev Agricultural Academy, and at D.N. Pryanishnikov Experimental Agrochemical Station. Additional fertilizer nitrogen applied at later ontogenesis stages (flowering and milky ripeness) is utilized mostly for protein synthesis in developing grains, thus leading to a significant increase in the relative grain protein content. A transfer of a part of nitrogen from the main portion of fertilizer at later stages of nitrition results, at the same time, in a lower yield. Nitrogen utilization degree of urea and ammonium nitrate, when introduced before sowing or at the flowering stage is similar but in the latter case, however, additional assimilation of soil nitrogen is lower. The assimilation rate of nitrogen in root application is the lower the later the fertilizer is applied. When ammonium nitrate is additionally applied as nutrition to barley at the milky ripeness stage, ammonia and nitrate nitrogen are assimilated at the same rate and to the same extent but ammonia nitrogen is more rapidly used for protein synthesis and the rate of its transfer to the developing grains is higher. The rate of nitrogen assimilation at plant is much higher in foliar than in root application. Wheat utilizes more urea nitrogen at the flowering stage when root application is used but at the milky ripeness stage foliar application is more effective.}
journal = {Dokl. TSKhA (Timiryazev. Sel'skokhoz. Akad.); (USSR)}
volume = {203}
journal type = {AC}
place = {USSR}
year = {1974}
month = {Jan}
}