Full TGIF Record # 40372
Item 1 of 1
Publication Type:
i
Refereed
Author(s):Estavillo, J. M.; Rodriguez, M.; Lacuesta, M.; Gonzalez-Murua, C.
Author Affiliation:Departamento de Biologia Vegetal y Ecologia, Universidad del Pais Vasco, Apdo. 644, 48080 Bilbao, Spain; Servicia de Investigacion y Mejora Agraria, Departamento de Agricultura y Pesca, Gobierna Vasco, 48016 Derio (Bizkaua), Spain; Departamento de Biologia Vegetal y Ecologia, Universidad del Pais Vasco, Apdo. 450, 01080 Vitoria, Spain
Title:Effects of cattle clurry and mineral N fertilizer applications on various components of the nitrogen balance of mown grassland
Source:Plant and Soil. Vol. 188, No. 1, January 1997, p. 49-58.
# of Pages:10
Publishing Information:Dordrecht, Netherlands: Kluwer Academic Publishers
Related Web URL:http://link.springer.com/article/10.1023/A%3A1004248228162
    Last checked: 10/14/2015
    Notes: Abstract only
Keywords:TIC Keywords: Nitrogen; Efficiency; Soil types; Loam soils; Ammonium nitrate; Calcium; Denitrification; Biomass
Abstract/Contents:"It is essential to establish more accurate N balances for different soil-plant systems in order to improve N use efficiency. In this study the N balance was studied in a poorly drained clayey loam soil under natural grassland supplied with either calcium ammonium nitrate or cattle slurry at two application rates. The aim was to determine the efficiency of the N applied and the factors which affect this efficiency. Mineralization-immobilization of N was calculated by balance between the quantified inputs and outputs of N. As N inputs increased, output via herbage yield was accompanied by an increase in apparent immobilization of N in the soil and by larger losses of N by denitrification. The difference between cattle slurry and N fertilizer was that the slurry behaved as a slow release fertilizer, its supply of mineral N being greater in the periods of time when fertilizer was applied a long time ago. Denitrification losses (up to 17% of the N applied) are suggested to be the main factor to mitigate in order to increase N use efficiency. A decrease in net mineralization (up to 136 kg N ha⁻¹ year⁻¹) was observed which was related to the mineral N application rate. There was evidence to suggest that this decrease was due both to the immobilization of the N applied and to a decrease in the rate of gross mineralization when mineral N was applied. Microbial biomass determinations could not explain the changes in the mineralization-immobilization equilibrium of N because of the great coefficients of variation for thie determination (mean value of 18%). Nevertheless, it contributed to verify and explain some of the changes observed in this equilibrium."
Language:English
References:37
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Estavillo, J. M., M. Rodriguez, M. Lacuesta, and C. Gonzalez-Murua. 1997. Effects of cattle clurry and mineral N fertilizer applications on various components of the nitrogen balance of mown grassland. Plant Soil. 188(1):p. 49-58.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=40372
If there are problems with this record, send us feedback about record 40372.
Choices for finding the above item:
Find Item @ MSU
MSU catalog number: SB 13 .P55
Find from within TIC:
   Digitally in TIC by record number.
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)