Abstract
Two field experiments were carried out to evaluate the use efficiency of nitrogen fertilizer in wheat crop, using urea and ammonium sulphate 5% N-15 atom excess. The experiments were conducted at the ICTA Experimental Center `Labor Ovalle`, Quetzaltenango. In one of them, the time of the largest use efficiency by the crop was determined, for which three times of applications were evaluated: at sowing, 35 and 55 days after sowing with a total rate of 100 kg nitrogen per hectare, applying fertilizer dissolved in water. In the other experiment the application of fertilizer solid and dissolved in water was compared. The use efficiency was similar for nitrogen sources, but not for time and type of application being 35 days and fertilizer dissolved the treatments with best use efficiency.
Alfaro, M A;
Pappa, J L;
[1]
Aldana, F
[2]
- Seccion Agropecuaria, Direccion General de Energia Nuclear (Guatemala)
- Instituto de Ciencia y Tecnologia Agricola (Guatemala)
Citation Formats
Alfaro, M A, Pappa, J L, and Aldana, F.
Ammonium sulphate and urea use efficiency in wheat (triticum aestivum) through isotope dilution method; Eficiencia del uso del sulfato de amonio y urea en trigo (triticum aestivum) a traves del metodo del dilucion isotopica.
Guatemala: N. p.,
1993.
Web.
Alfaro, M A, Pappa, J L, & Aldana, F.
Ammonium sulphate and urea use efficiency in wheat (triticum aestivum) through isotope dilution method; Eficiencia del uso del sulfato de amonio y urea en trigo (triticum aestivum) a traves del metodo del dilucion isotopica.
Guatemala.
Alfaro, M A, Pappa, J L, and Aldana, F.
1993.
"Ammonium sulphate and urea use efficiency in wheat (triticum aestivum) through isotope dilution method; Eficiencia del uso del sulfato de amonio y urea en trigo (triticum aestivum) a traves del metodo del dilucion isotopica."
Guatemala.
@misc{etde_10122644,
title = {Ammonium sulphate and urea use efficiency in wheat (triticum aestivum) through isotope dilution method; Eficiencia del uso del sulfato de amonio y urea en trigo (triticum aestivum) a traves del metodo del dilucion isotopica}
author = {Alfaro, M A, Pappa, J L, and Aldana, F}
abstractNote = {Two field experiments were carried out to evaluate the use efficiency of nitrogen fertilizer in wheat crop, using urea and ammonium sulphate 5% N-15 atom excess. The experiments were conducted at the ICTA Experimental Center `Labor Ovalle`, Quetzaltenango. In one of them, the time of the largest use efficiency by the crop was determined, for which three times of applications were evaluated: at sowing, 35 and 55 days after sowing with a total rate of 100 kg nitrogen per hectare, applying fertilizer dissolved in water. In the other experiment the application of fertilizer solid and dissolved in water was compared. The use efficiency was similar for nitrogen sources, but not for time and type of application being 35 days and fertilizer dissolved the treatments with best use efficiency.}
place = {Guatemala}
year = {1993}
month = {Dec}
}
title = {Ammonium sulphate and urea use efficiency in wheat (triticum aestivum) through isotope dilution method; Eficiencia del uso del sulfato de amonio y urea en trigo (triticum aestivum) a traves del metodo del dilucion isotopica}
author = {Alfaro, M A, Pappa, J L, and Aldana, F}
abstractNote = {Two field experiments were carried out to evaluate the use efficiency of nitrogen fertilizer in wheat crop, using urea and ammonium sulphate 5% N-15 atom excess. The experiments were conducted at the ICTA Experimental Center `Labor Ovalle`, Quetzaltenango. In one of them, the time of the largest use efficiency by the crop was determined, for which three times of applications were evaluated: at sowing, 35 and 55 days after sowing with a total rate of 100 kg nitrogen per hectare, applying fertilizer dissolved in water. In the other experiment the application of fertilizer solid and dissolved in water was compared. The use efficiency was similar for nitrogen sources, but not for time and type of application being 35 days and fertilizer dissolved the treatments with best use efficiency.}
place = {Guatemala}
year = {1993}
month = {Dec}
}