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Effect of Nitrogen Fertilizer on Variations in Composition in Protein and Non-Protein Compounds in the Aerial Parts of Dactylis Glomerata L; Influence de la Fertilisation Azotee sur les Variations de la Composition en Composes Proteiques et Non Proteiques des Parties Aeriennes de Dactylis Glomerata L.

Abstract

A knowledge of the effects of nitrogen fertilizer on plant quality would appear to be of prime importance in the study of plant-animal relations. Th e author examined, at a test facility in the east-central part of France, variations in the composition of the aerial parts of ''Floreal'' cocksfoot treated with nitrogen fertilizer at different supply rates. Enrichment in soluble organic nitrogen, amino acids, amides, simple peptides and protein compounds is fairly proportional to the nitrogen dose supplied at different vegetative cycles. Free mineral nitrogen, consisting almost exclusively of nitrates, shows elevated values, particularly during the first vegetative cycles which take place at a time when low temperatures are not favourable to a rapid reduction. The values found increase with the amounts of nitrogen supplied to the plants. If the fertilizer is applied to the grass 15 days after ablation of the aerial parts and not immediately, as in common farming practice, a complete modification of the various phenomena accompanying protein synthesis will be noted. In this case nitrate production is very swift and metabolization into soluble organic compounds and condensates is extensive. As a result, temporarily large accumulations of nitrates are not observed in the summer and autumn vegetative  More>>
Authors:
Lefebvre, J. M. [1] 
  1. Institut National de la Recherche Agronomique, Station d'Agronomie, Dijon (France)
Publication Date:
Jul 01, 1968
Product Type:
Conference
Report Number:
IAEA-SM-97/46
Resource Relation:
Conference: Symposium on the use of isotope in studies of nitrogen metabolism in the soils-plant-animal system, Vienna (Austria), 28 Aug - 1 Sep 1967; Other Information: 6 refs., 5 figs.; Related Information: In: Isotope Studies on the Nitrogen Chain. Proceedings of the Symposium on the Use of Isotopes in Studies of Nitrogen Metabolism in the Soil-Plant-Animal System| 360 p.
Subject:
60 APPLIED LIFE SCIENCES; AMIDES; AMINO ACIDS; ANIMALS; CONDENSATES; DOSES; FARMS; FERTILIZATION; FERTILIZERS; MINERALS; NITRATES; NITROGEN; PEPTIDES; PLANTS; SYNTHESIS; TEST FACILITIES
OSTI ID:
22108080
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); Food and Agriculture Organization of the United Nations, Rome (Italy); Joint Commission on Applied Radioactivity of the International Council of Scientific Unions, Paris (France)
Country of Origin:
IAEA
Language:
French
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA13M1063065891
Submitting Site:
INIS
Size:
page(s) 99-105
Announcement Date:
Jun 27, 2013

Citation Formats

Lefebvre, J. M. Effect of Nitrogen Fertilizer on Variations in Composition in Protein and Non-Protein Compounds in the Aerial Parts of Dactylis Glomerata L; Influence de la Fertilisation Azotee sur les Variations de la Composition en Composes Proteiques et Non Proteiques des Parties Aeriennes de Dactylis Glomerata L.. IAEA: N. p., 1968. Web.
Lefebvre, J. M. Effect of Nitrogen Fertilizer on Variations in Composition in Protein and Non-Protein Compounds in the Aerial Parts of Dactylis Glomerata L; Influence de la Fertilisation Azotee sur les Variations de la Composition en Composes Proteiques et Non Proteiques des Parties Aeriennes de Dactylis Glomerata L.. IAEA.
Lefebvre, J. M. 1968. "Effect of Nitrogen Fertilizer on Variations in Composition in Protein and Non-Protein Compounds in the Aerial Parts of Dactylis Glomerata L; Influence de la Fertilisation Azotee sur les Variations de la Composition en Composes Proteiques et Non Proteiques des Parties Aeriennes de Dactylis Glomerata L." IAEA.
@misc{etde_22108080,
title = {Effect of Nitrogen Fertilizer on Variations in Composition in Protein and Non-Protein Compounds in the Aerial Parts of Dactylis Glomerata L; Influence de la Fertilisation Azotee sur les Variations de la Composition en Composes Proteiques et Non Proteiques des Parties Aeriennes de Dactylis Glomerata L.}
author = {Lefebvre, J. M.}
abstractNote = {A knowledge of the effects of nitrogen fertilizer on plant quality would appear to be of prime importance in the study of plant-animal relations. Th e author examined, at a test facility in the east-central part of France, variations in the composition of the aerial parts of ''Floreal'' cocksfoot treated with nitrogen fertilizer at different supply rates. Enrichment in soluble organic nitrogen, amino acids, amides, simple peptides and protein compounds is fairly proportional to the nitrogen dose supplied at different vegetative cycles. Free mineral nitrogen, consisting almost exclusively of nitrates, shows elevated values, particularly during the first vegetative cycles which take place at a time when low temperatures are not favourable to a rapid reduction. The values found increase with the amounts of nitrogen supplied to the plants. If the fertilizer is applied to the grass 15 days after ablation of the aerial parts and not immediately, as in common farming practice, a complete modification of the various phenomena accompanying protein synthesis will be noted. In this case nitrate production is very swift and metabolization into soluble organic compounds and condensates is extensive. As a result, temporarily large accumulations of nitrates are not observed in the summer and autumn vegetative cycles. In addition, and of great importance for the nutritional quality of the harvested produce, the gross protein contents are much higher (around 50%) at the end of the cycle for an equal quantity of nitrogen supplied during fertilization. Soluble organic nitrogen compounds, amino acids and amides, are also found in greater quantities. (author) [French] La connaissance des repercussions de la fertilisation azotee sur la qualite vegetale semble primordiale dans l'etude des liaisons plante-animal. L'auteur a examine sur un dispositif experimental situe dans le Centre-Est de la France les variations de la composition des parties aeriennes d'un Dactyle Floreal soumis a des fertilisations azotees a des rythmes d'apports differents. L'enrichissement en azote organique soluble, amino-acides, amides, peptides simples, et en composes proteiques est sensiblement proportionnel a la dose d'azote apportee dans les differents cycles vegetatifs. L'azote mineral libre, compose a peu pres exclusivement de nitrates, presente des valeurs elevees, surtout dans les premiers cycles vegetatifs se situant a un moment ou les temperatures basses ne favorisent pas une reduction rapide. Les valeurs trouvees augmentent avec les quantites d'azote fournies aux plantes. Si la fertilisation azotee est apportee sur la graminee quinze jours apres la coupe des parties aeriennes et non immediatement comme cela se fait habituellement dans la pratique agricole, on observe une modification complete des phenomenes de synthese proteique. En effet, dans ce cas la reduction des nitrates est tres rapide et la metabolisation en composes organiques solubles et condenses importante. De ce fait, on n'observe pas d'accumulations transitoires elevees de nitrates dans les cycles vegetatifs d'ete et d'automne. D e plus, ce qui est tres important pour la qualite alimentaire du produit recolte, les teneurs en proteines brutes sont beaucoup plus elevees (de 5 0 % environ) a la fin du cycle pour une m 6me quantite d'azote apportee a la fertilisation. Les composes azotes organiques solubles, amino-acides et amides, sont egalement en quantite plus elevees. (author)}
place = {IAEA}
year = {1968}
month = {Jul}
}